WO2024025343A1 - 항-ror1 항체 및 이의 용도 - Google Patents
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- WO2024025343A1 WO2024025343A1 PCT/KR2023/010847 KR2023010847W WO2024025343A1 WO 2024025343 A1 WO2024025343 A1 WO 2024025343A1 KR 2023010847 W KR2023010847 W KR 2023010847W WO 2024025343 A1 WO2024025343 A1 WO 2024025343A1
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- C07K16/28—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
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- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/705—Receptors; Cell surface antigens; Cell surface determinants
- C07K14/70503—Immunoglobulin superfamily
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- C12N5/06—Animal cells or tissues; Human cells or tissues
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Definitions
- the present invention relates to an anti-ROR1 (Receptor Tyrosine Kinase Like Orphan Receptor 1) antibody or antigen-binding fragment thereof, a nucleic acid encoding the same, a recombinant expression vector containing the nucleic acid, a host cell transfected with the recombinant expression vector, and the antibody or its Method for producing an antigen-binding fragment, a dual or multispecific antibody comprising the antibody or an antigen-binding fragment thereof, an scFv of the antibody, and a second binding domain comprising at least one scFv of an antibody that binds to an immune cell activating antigen.
- ROR1 Receptor Tyrosine Kinase Like Orphan Receptor 1
- ROR Receptor Tyrosine Kinase Like Orphan Receptor
- RTK Receptor Tyrosine Kinase
- the ROR family consists of ROR1 and ROR2, and the amino acid sequence similarity between the two proteins amounts to approximately 60%.
- the ROR family consists of Ig, Cysteine-rich, and Kringle domains extracellularly and tyrosine kinase, Ser/Thr-rich, and Proline-rich domains internally.
- ROR1 is expressed during embryogenesis and affects various early cell activities, but its expression gradually decreases as adult tissue formation progresses.
- ROR1 is expressed in the intermediate stage of the normal B cell maturation process, but is not expressed in mature B and T cells or monocytes.
- ROR1 is overexpressed in various tumor cells, it is considered to be a fetal gene for malignant tumors. It has been reported that ROR1 acts as a receptor for Wnt5a, activating non-canonical Wnt signals, resulting in cancer cell proliferation and metastasis. Accordingly, ROR1 began to emerge as a representative target for anticancer antibody treatments.
- CLL chronic lymphocytic leukemia
- AML acute myeloid leukemia
- ALL acute lymphocytic leukemia
- DLBCL diffuse large B-cell lymphoma
- each anti-ROR1 antibody has different characteristics, it is possible to develop a variety of anticancer antibodies according to the cancer type in which the antigen is expressed.
- cancer types with a high recurrence rate, such as CLL, the unmet demand for anticancer antibodies can be satisfied.
- the purpose of the present invention is to provide a novel antibody or antigen-binding fragment thereof against ROR 1 (Receptor Tyrosine Kinase Like Orphan Receptor 1).
- Another object of the present invention is to provide a nucleic acid encoding the antibody or antigen-binding fragment thereof.
- Another object of the present invention is to provide a recombinant expression vector containing the above nucleic acid or a host cell transfected with the recombinant expression vector.
- Another object of the present invention is to provide a method for producing an antibody or antigen-binding fragment thereof that specifically binds to ROR1.
- Another object of the present invention is to provide a dual/multispecific antibody or an immune cell engaging dual/multispecific antibody comprising the antibody or an antigen-binding fragment thereof.
- Another object of the present invention is to provide an antibody-drug conjugate (ADC) in which the antibody or antigen-binding fragment thereof is bound to a drug.
- ADC antibody-drug conjugate
- Another object of the present invention is to provide a chimeric antigen receptor (CAR) containing the scFv of the antibody as an antigen-binding site of the extracellular domain, an immune cell into which the chimeric antigen receptor is introduced, and a composition for combination treatment containing the immune cell. is to provide.
- CAR chimeric antigen receptor
- Another object of the present invention is to provide a composition for preventing or treating cancer or a composition for preventing or treating cancer comprising the antibody or antigen-binding fragment thereof, the dual or multispecific antibody, the antibody-drug conjugate, the chimeric antigen receptor or the immune cell.
- the goal is to provide treatment methods.
- Another object of the present invention is to provide a use of the antibody or antigen-binding fragment thereof, the dual or multispecific antibody, the antibody-drug conjugate, the chimeric antigen receptor, or the immune cell for the prevention or treatment of cancer. .
- Another object of the present invention is to provide the use of the antibody or antigen-binding fragment thereof, the dual or multispecific antibody, the antibody-drug conjugate, the chimeric antigen receptor or the immune cell for the production of a drug for preventing or treating cancer. There is something to do.
- the present invention provides an antibody or antigen-binding fragment thereof that specifically binds to ROR 1 (Receptor Tyrosine Kinase Like Orphan Receptor 1), including:
- Heavy chain CDR1 comprising at least one amino acid sequence selected from the group consisting of SEQ ID NO: 1 to SEQ ID NO: 16,
- a heavy chain CDR2 comprising one or more amino acid sequences selected from the group consisting of SEQ ID NO: 17 to SEQ ID NO: 41, SEQ ID NO: 184, and SEQ ID NO: 185,
- Heavy chain CDR3 comprising at least one amino acid sequence selected from the group consisting of SEQ ID NO: 42 to SEQ ID NO: 65,
- a light chain CDR1 comprising one or more amino acid sequences selected from the group consisting of SEQ ID NO: 66 to SEQ ID NO: 86,
- a light chain CDR2 comprising one or more amino acid sequences selected from the group consisting of SEQ ID NO: 87 to SEQ ID NO: 102, SEQ ID NO: 186, and SEQ ID NO: 187, and
- a light chain CDR3 comprising at least one amino acid sequence selected from the group consisting of SEQ ID NO: 103 to SEQ ID NO: 121.
- the present invention also provides a nucleic acid encoding the antibody or antigen-binding fragment thereof.
- the present invention also provides a recombinant expression vector containing the above nucleic acid.
- the present invention also provides host cells transfected with the above recombinant expression vector.
- the present invention also includes the steps of culturing host cells to produce antibodies; and isolating and purifying the produced antibody.
- a method for producing an antibody or antigen-binding fragment thereof that specifically binds to ROR1 is provided.
- the present invention also provides a dual/multispecific antibody or an immune cell engaging dual/multispecific antibody comprising the antibody or antigen-binding fragment thereof.
- the present invention also provides an antibody-drug conjugate (ADC) in which the antibody or antigen-binding fragment thereof is bound to a drug.
- ADC antibody-drug conjugate
- the present invention also provides a chimeric antigen receptor (CAR) comprising an extracellular domain including an antigen binding site, a transmembrane domain, and an intracellular signaling domain, wherein the antigen binding site of the extracellular domain is the scFv of the antibody.
- CAR chimeric antigen receptor
- the present invention also provides immune cells containing the chimeric antigen receptor (CAR).
- CAR chimeric antigen receptor
- the present invention also provides a composition for preventing or treating cancer, comprising the antibody or antigen-binding fragment thereof, the dual or multispecific antibody, the antibody-drug conjugate, the chimeric antigen receptor, or the immune cell.
- the present invention also provides a use of the antibody or antigen-binding fragment thereof, the dual or multispecific antibody, the antibody-drug conjugate, the chimeric antigen receptor, or the immune cell for the prevention or treatment of cancer.
- the present invention also provides the use of the antibody or antigen-binding fragment thereof, the dual or multispecific antibody, the antibody-drug conjugate, the chimeric antigen receptor, or the immune cell for the production of a drug for preventing or treating cancer.
- Figure 1 shows the results of analyzing ROR1 binding characteristics according to clones through ELISA.
- Figure 2 shows the results confirming that anti-ROR1 antibodies cross-link to human ROR1 and mouse ROR1.
- Figure 3 shows the results of analyzing anti-ROR1 antibody clones binding to each domain through ELISA.
- Figure 4 shows the results of measuring the ROR1 expression level of cells used in the examples of the present invention.
- Figure 5 shows the results of analysis of the binding ability of the antibodies used in the examples of the present invention with the ROR1 antigen expressed in AMB-LC-0003T lung cancer patient-derived cells.
- Figure 6 shows the results of analysis of the binding ability of the antibodies used in the examples of the present invention with the ROR1 antigen expressed in the Jeko-1 cell line.
- Figure 7 shows the results of cell internalization analysis of the antibodies used in the examples of the present invention.
- Figure 8 shows the structure of anti-ROR1 antibody-drug conjugate.
- Figure 9 shows the results of purity analysis of the antibody-drug conjugate used in the examples of the present invention.
- Figure 10 shows the results of analysis of the average number of drug molecules per antibody molecule of the antibody-drug conjugates used in the examples of the present invention.
- Figure 11 shows the results of ELISA analysis of ROR1 binding of the antibody-drug conjugate used in the examples of the present invention.
- Figure 12 shows the results of in vitro toxicity evaluation of the antibody-drug conjugate used in the examples of the present invention on patient-derived cells.
- Figure 13 shows the results of in vitro toxicity evaluation of the antibody-drug conjugate used in the examples of the present invention on patient-derived cells, confirming that it exhibits significantly increased efficacy compared to the existing antibody-drug conjugate.
- the present invention provides a heavy chain CDR1 comprising at least one amino acid sequence selected from the group consisting of SEQ ID NO: 1 to SEQ ID NO: 16, SEQ ID NO: 17 to SEQ ID NO: 41, SEQ ID NO: 184, and SEQ ID NO: 185.
- Heavy chain CDR2 containing the above amino acid sequence
- heavy chain CDR3 containing at least one amino acid sequence selected from the group consisting of SEQ ID NO: 42 to SEQ ID NO: 65, SEQ ID NO: 66 to SEQ ID NO: 86, including at least one amino acid sequence selected from the group Light chain CDR1, SEQ ID NO: 87 to SEQ ID NO: 102, SEQ ID NO: 186, light chain CDR2 comprising one or more amino acid sequences selected from the group consisting of SEQ ID NO: 187, and one or more amino acid sequences selected from the group consisting of SEQ ID NO: 103 to SEQ ID NO: 121 It relates to an antibody or antigen-binding fragment thereof that specifically binds to ROR1 (Receptor Tyrosine Kinase Like Orphan Receptor 1) containing a light chain CDR3.
- ROR1 Receptor Tyrosine Kinase Like Orphan Receptor 1
- antibody refers to an anti-ROR1 antibody that specifically binds to ROR1.
- the scope of the present invention includes not only complete antibody forms that specifically bind to ROR1, but also antigen-binding fragments of this antibody molecule.
- a complete antibody has a structure of two full-length light chains and two full-length heavy chains, with each light chain connected to the heavy chain by a disulfide bond.
- the term “heavy chain” refers to a full-length heavy chain comprising a variable region domain VH and three constant region domains CH1, CH2, and CH3, including an amino acid sequence with sufficient variable region sequence to confer specificity to an antigen. and fragments thereof.
- the term “light chain” as used herein refers to a full-length light chain and fragments thereof comprising a variable region domain VL and a constant region domain CL containing an amino acid sequence having a sufficient variable region sequence to confer specificity to an antigen. It all means.
- the total antibody includes subtypes of IgA, IgD, IgE, IgM and IgG, and especially IgG includes IgG1, IgG2, IgG3 and IgG4.
- the heavy chain constant region has gamma ( ⁇ ), mu ( ⁇ ), alpha ( ⁇ ), delta ( ⁇ ), and epsilon ( ⁇ ) types and is subclassed as gamma1 ( ⁇ 1), gamma2 ( ⁇ 2), and gamma3 ( ⁇ 3). ), gamma 4 ( ⁇ 4), alpha 1 ( ⁇ 1), and alpha 2 ( ⁇ 2).
- the constant region of the light chain has kappa ( ⁇ ) and lambda ( ⁇ ) types.
- An antigen-binding fragment of an antibody or an antibody fragment refers to a fragment that possesses an antigen-binding function and includes Fab, F(ab'), F(ab') 2 , and Fv.
- Fab has a structure that includes the variable regions of the light and heavy chains, the constant region of the light chain, and the first constant region (CH1) of the heavy chain, and has one antigen binding site.
- Fab' differs from Fab in that it has a hinge region containing one or more cysteine residues at the C-terminus of the heavy chain CH1 domain.
- F(ab') 2 is generated when the cysteine residue in the hinge region of Fab' forms a disulfide bond.
- Double-chain Fv corresponds to the minimum antibody fragment containing only the heavy chain variable region and light chain variable region.
- Double-chain Fv two-chain Fv
- single-chain Fv single-chain Fv
- the regions can be covalently linked or linked directly at the C-terminus to form a dimer-like structure, such as double-chain Fv.
- antibody fragments can be created using proteolytic enzymes (for example, Fab can be obtained by restriction digestion of the complete antibody with papain, and F(ab') 2 can be obtained by digestion with pepsin) or genetic recombination technology. It can be produced using .
- Fv fragment is an antibody fragment that contains the complete antibody recognition and binding site. This region is a dimer of one heavy chain variable domain and one light chain variable domain.
- the “Fab” fragment includes the variable and constant domains of the light chain and the variable and first constant domains (CH1) of the heavy chain.
- F(ab') 2 antibody fragments generally comprise a pair of Fab' fragments covalently linked by a cysteine in the hinge region present at the C-terminus of the Fab' fragments.
- a “single chain Fv (scFv)” antibody fragment is a structure consisting of a single polypeptide chain containing the VH and VL domains of an antibody.
- a polypeptide linker that allows the scFv to form a desired structure for antigen binding may be additionally included between the VH domain and the VL domain.
- the antibodies of the invention include monoclonal antibodies, multispecific antibodies, human antibodies, humanized antibodies, chimeric antibodies, scFvs, Fab fragments, F(ab') 2 fragments, disulfide-linked Fvs (sdFv) and anti-idiotype (anti-Id) antibodies, or epitope-binding fragments of these antibodies, but are not limited thereto.
- the heavy chain constant region may be selected from any one of gamma ( ⁇ ), mu ( ⁇ ), alpha ( ⁇ ), delta ( ⁇ ), or epsilon ( ⁇ ) isotype.
- the constant region is gamma 1 (IgG1), gamma 2 (IgG2), gamma 3 (IgG3), or gamma 4 (IgG4).
- the light chain constant region may be of kappa or lambda type.
- the monoclonal antibody refers to an antibody obtained from a substantially homogeneous antibody population, i.e., the individual antibodies comprising the population are identical except for possible naturally occurring mutations that may be present in trace amounts. Monoclonal antibodies are highly specific, being directed against a single antigenic site. In contrast to conventional (polyclonal) antibodies, which typically contain different antibodies against different determinants (epitopes), each monoclonal antibody is directed against a single determinant on the antigen.
- Epitope refers to a protein determinant to which an antibody can specifically bind. Epitopes usually consist of groups of chemically active surface molecules, such as amino acids or sugar side chains, and generally have specific three-dimensional structural features as well as specific charge characteristics. Conformational epitopes and non-steric epitopes are distinguished in that binding to the former is lost in the presence of a denaturing solvent, but binding to the latter is not.
- non-human antibodies are chimeric antibodies that contain minimal sequence derived from non-human immunoglobulins.
- humanized antibodies are derived from a non-human species (donor antibody) that retains the desired specificity, affinity, and ability to transfer residues from the recipient hypervariable region, such as mouse, rat, rabbit, or non-human primate. It is a human immunoglobulin (recipient antibody) replaced with residues from the hypervariable region of .
- human antibody is a molecule derived from human immunoglobulin, meaning that the entire amino acid sequence constituting the antibody, including the complementarity determining region and structural region, is composed of human immunoglobulin.
- While portions of the heavy and/or light chain are identical to or homologous to corresponding sequences in antibodies derived from a particular species or belonging to a particular antibody class or subclass, the remaining chain(s) are derived from another species or belong to another antibody class or subclass. Included are “chimeric” antibodies (immunoglobulins) that are identical or homologous to the corresponding sequence in an antibody belonging to a subclass, as well as fragments of such antibodies that exhibit the desired biological activity.
- variable region of an antibody refers to the light and heavy chain portions of an antibody molecule including the amino acid sequences of the complementarity determining regions (CDRs; i.e., CDR1, CDR2, and CDR3) and framework regions (FR).
- CDRs complementarity determining regions
- FR framework regions
- VH refers to the variable domain of the heavy chain.
- VL refers to the variable domain of the light chain.
- CDR complementarity determining region
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 1, the heavy chain CDR2 of SEQ ID NO: 17, and the heavy chain CDR3 of SEQ ID NO: 42, the light chain CDR1 of SEQ ID NO: 66, the light chain CDR2 of SEQ ID NO: 87, and the light chain CDR3 of SEQ ID NO: 103. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 2, the heavy chain CDR2 of SEQ ID NO: 18, and the heavy chain CDR3 of SEQ ID NO: 43, the light chain CDR1 of SEQ ID NO: 67, the light chain CDR2 of SEQ ID NO: 88, and the light chain CDR3 of SEQ ID NO: 104. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 3, the heavy chain CDR2 of SEQ ID NO: 19, and the heavy chain CDR3 of SEQ ID NO: 44, the light chain CDR1 of SEQ ID NO: 67, the light chain CDR2 of SEQ ID NO: 88, and the light chain CDR3 of SEQ ID NO: 104. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 4, the heavy chain CDR2 of SEQ ID NO: 20, and the heavy chain CDR3 of SEQ ID NO: 45, the light chain CDR1 of SEQ ID NO: 68, the light chain CDR2 of SEQ ID NO: 89, and the light chain CDR3 of SEQ ID NO: 105. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 2, the heavy chain CDR2 of SEQ ID NO: 18, and the heavy chain CDR3 of SEQ ID NO: 43, the light chain CDR1 of SEQ ID NO: 69, the light chain CDR2 of SEQ ID NO: 90, and the light chain CDR3 of SEQ ID NO: 106. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 5, the heavy chain CDR2 of SEQ ID NO: 21, and the heavy chain CDR3 of SEQ ID NO: 46, the light chain CDR1 of SEQ ID NO: 67, the light chain CDR2 of SEQ ID NO: 88, and the light chain CDR3 of SEQ ID NO: 104. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 6, the heavy chain CDR2 of SEQ ID NO: 22, and the heavy chain CDR3 of SEQ ID NO: 47, the light chain CDR1 of SEQ ID NO: 70, the light chain CDR2 of SEQ ID NO: 91, and the light chain CDR3 of SEQ ID NO: 107. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 5, the heavy chain CDR2 of SEQ ID NO: 17, and the heavy chain CDR3 of SEQ ID NO: 48, the light chain CDR1 of SEQ ID NO: 67, the light chain CDR2 of SEQ ID NO: 88, and the light chain CDR3 of SEQ ID NO: 108. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 7, the heavy chain CDR2 of SEQ ID NO: 23, and the heavy chain CDR3 of SEQ ID NO: 49, the light chain CDR1 of SEQ ID NO: 71, the light chain CDR2 of SEQ ID NO: 92, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 7, the heavy chain CDR2 of SEQ ID NO: 24, and the heavy chain CDR3 of SEQ ID NO: 50, the light chain CDR1 of SEQ ID NO: 72, the light chain CDR2 of SEQ ID NO: 90, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 7, the heavy chain CDR2 of SEQ ID NO: 25, and the heavy chain CDR3 of SEQ ID NO: 47, the light chain CDR1 of SEQ ID NO: 70, the light chain CDR2 of SEQ ID NO: 93, and the light chain CDR3 of SEQ ID NO: 108. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 8, the heavy chain CDR2 of SEQ ID NO: 26, and the heavy chain CDR3 of SEQ ID NO: 51, the light chain CDR1 of SEQ ID NO: 73, the light chain CDR2 of SEQ ID NO: 90, and the light chain CDR3 of SEQ ID NO: 110. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 9, the heavy chain CDR2 of SEQ ID NO: 27, and the heavy chain CDR3 of SEQ ID NO: 52, the light chain CDR1 of SEQ ID NO: 74, the light chain CDR2 of SEQ ID NO: 94, and the light chain CDR3 of SEQ ID NO: 111. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 7, the heavy chain CDR2 of SEQ ID NO: 28, and the heavy chain CDR3 of SEQ ID NO: 50, the light chain CDR1 of SEQ ID NO: 75, the light chain CDR2 of SEQ ID NO: 92, and the light chain CDR3 of SEQ ID NO: 112. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 29, and the heavy chain CDR3 of SEQ ID NO: 53, the light chain CDR1 of SEQ ID NO: 76, the light chain CDR2 of SEQ ID NO: 91, and the light chain CDR3 of SEQ ID NO: 113. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 11, the heavy chain CDR2 of SEQ ID NO: 30, and the heavy chain CDR3 of SEQ ID NO: 54, the light chain CDR1 of SEQ ID NO: 77, the light chain CDR2 of SEQ ID NO: 93, and the light chain CDR3 of SEQ ID NO: 114. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 12, the heavy chain CDR2 of SEQ ID NO: 31, and the heavy chain CDR3 of SEQ ID NO: 55, the light chain CDR1 of SEQ ID NO: 78, the light chain CDR2 of SEQ ID NO: 95, and the light chain CDR3 of SEQ ID NO: 115. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 13, the heavy chain CDR2 of SEQ ID NO: 32, and the heavy chain CDR3 of SEQ ID NO: 56, the light chain CDR1 of SEQ ID NO: 79, the light chain CDR2 of SEQ ID NO: 96, and the light chain CDR3 of SEQ ID NO: 116. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 3, the heavy chain CDR2 of SEQ ID NO: 33, and the heavy chain CDR3 of SEQ ID NO: 57, the light chain CDR1 of SEQ ID NO: 80, the light chain CDR2 of SEQ ID NO: 97, and the light chain CDR3 of SEQ ID NO: 114. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 1, the heavy chain CDR2 of SEQ ID NO: 34, and the heavy chain CDR3 of SEQ ID NO: 58, the light chain CDR1 of SEQ ID NO: 81, the light chain CDR2 of SEQ ID NO: 98, and the light chain CDR3 of SEQ ID NO: 103. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 14, the heavy chain CDR2 of SEQ ID NO: 35, and the heavy chain CDR3 of SEQ ID NO: 59, the light chain CDR1 of SEQ ID NO: 82, the light chain CDR2 of SEQ ID NO: 99, and the light chain CDR3 of SEQ ID NO: 106. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 15, the heavy chain CDR2 of SEQ ID NO: 36, and the heavy chain CDR3 of SEQ ID NO: 60, the light chain CDR1 of SEQ ID NO: 76, the light chain CDR2 of SEQ ID NO: 91, and the light chain CDR3 of SEQ ID NO: 117. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 37, and the heavy chain CDR3 of SEQ ID NO: 61, the light chain CDR1 of SEQ ID NO: 76, the light chain CDR2 of SEQ ID NO: 93, and the light chain CDR3 of SEQ ID NO: 118. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 7, the heavy chain CDR2 of SEQ ID NO: 23, and the heavy chain CDR3 of SEQ ID NO: 49, the light chain CDR1 of SEQ ID NO: 71, the light chain CDR2 of SEQ ID NO: 92, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 38, and the heavy chain CDR3 of SEQ ID NO: 62, the light chain CDR1 of SEQ ID NO: 83, the light chain CDR2 of SEQ ID NO: 100, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 7, the heavy chain CDR2 of SEQ ID NO: 23, and the heavy chain CDR3 of SEQ ID NO: 49, the light chain CDR1 of SEQ ID NO: 71, the light chain CDR2 of SEQ ID NO: 92, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 7, the heavy chain CDR2 of SEQ ID NO: 23, and the heavy chain CDR3 of SEQ ID NO: 49, the light chain CDR1 of SEQ ID NO: 71, the light chain CDR2 of SEQ ID NO: 92, and the light chain CDR3 of SEQ ID NO: 119. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 39, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 101, and the light chain CDR3 of SEQ ID NO: 120. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 39, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 101, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 1, the heavy chain CDR2 of SEQ ID NO: 40, and the heavy chain CDR3 of SEQ ID NO: 64, the light chain CDR1 of SEQ ID NO: 85, the light chain CDR2 of SEQ ID NO: 97, and the light chain CDR3 of SEQ ID NO: 108. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 16, the heavy chain CDR2 of SEQ ID NO: 41, and the heavy chain CDR3 of SEQ ID NO: 65, the light chain CDR1 of SEQ ID NO: 86, the light chain CDR2 of SEQ ID NO: 102, and the light chain CDR3 of SEQ ID NO: 121. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 184, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 101, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 185, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 101, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 39, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 186, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 39, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 187, and the light chain CDR3 of SEQ ID NO: 109. light chain variable region,
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 39, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 101, and the light chain CDR3 of SEQ ID NO: 110. light chain variable region, or
- a heavy chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 185, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 187, and the light chain CDR3 of SEQ ID NO: 110.
- Light chain variable region comprising the heavy chain CDR1 of SEQ ID NO: 10, the heavy chain CDR2 of SEQ ID NO: 185, and the heavy chain CDR3 of SEQ ID NO: 63, the light chain CDR1 of SEQ ID NO: 84, the light chain CDR2 of SEQ ID NO: 187, and the light chain CDR3 of SEQ ID NO: 110.
- Framework regions (FR) are variable domain residues other than CDR residues. Each variable domain typically has four FRs: FR1, FR2, FR3, and FR4.
- the binding affinity of anti-ROR1 antibodies to ROR1 is in the range of 10 -5 M to 10 -12 M.
- the binding affinity of an anti-ROR1 antibody to ROR1 is 10 -6 M to 10 -12 M, 10 -7 M to 10 -12 M, 10 -8 M to 10 -12 M, 10 -9 M to 10 -9 M.
- the antibody or antigen-binding fragment thereof that binds to ROR1 may include a heavy chain variable region including one or more amino acid sequences selected from the group consisting of SEQ ID NO: 122 to SEQ ID NO: 152 and SEQ ID NO: 188 to SEQ ID NO: 193.
- the antibody or antigen-binding fragment thereof that binds to ROR1 may include a light chain variable region including one or more amino acid sequences selected from the group consisting of SEQ ID NO: 153 to SEQ ID NO: 183 and SEQ ID NO: 194 to SEQ ID NO: 199.
- it may include:
- Heavy chain variable region of SEQ ID NO: 193 and light chain variable region of SEQ ID NO: 199 are Heavy chain variable region of SEQ ID NO: 193 and light chain variable region of SEQ ID NO: 199.
- An scFv is an antibody fragment, a structure consisting of a single polypeptide chain containing the VH and VL domains of an antibody.
- a polypeptide linker that allows the scFv to form a desired structure for antigen binding may be additionally included between the VH domain and the VL domain.
- a single chain Fv comprising the VH and VL domains of an antibody
- the VH and VL domains may be connected via a linker.
- the heavy chain variable region containing one or more amino acid sequences selected from the group consisting of SEQ ID NO: 122 to SEQ ID NO: 152 and SEQ ID NO: 188 to SEQ ID NO: 193 is linked to SEQ ID NO: 153 to SEQ ID NO: 183 and SEQ ID NO: 194 to SEQ ID NO: 199 through a linker. It may be linked to a light chain variable region containing one or more amino acid sequences selected from the group consisting of.
- it may include:
- Heavy chain variable region of SEQ ID NO: 193 and light chain variable region of SEQ ID NO: 199 are Heavy chain variable region of SEQ ID NO: 193 and light chain variable region of SEQ ID NO: 199.
- the linker may be a peptide linker and may be about 10-25 aa long.
- hydrophilic amino acids such as glycine and/or serine may be included, but are not limited thereto.
- the linker may include, for example, (GS) n , (GGS) n , (GSGGS) n , or (G n S) m (n, m are each 1 to 10), but the linker is For example, it may be (G n S) m (n and m are each 1 to 10).
- the linker may include GGGGS, for example, GGGGSGGGGSGGGGS of SEQ ID NO: 200 repeated three times.
- “Phage display” is a technique for displaying a variant polypeptide as a fusion protein with at least a portion of an envelope protein on the surface of a phage, for example, a fibrous phage particle.
- the usefulness of phage display lies in the fact that it can quickly and efficiently classify sequences that bind to target antigens with high affinity by targeting large libraries of randomized protein variants. Displaying peptide and protein libraries on phage has been used to screen millions of polypeptides for those with specific binding properties.
- Phage display technology has provided a powerful tool for generating and screening novel proteins that bind to specific ligands (e.g., antigens). Using phage display technology, large libraries of protein variants can be generated and sequences that bind with high affinity to target antigens can be rapidly sorted.
- a nucleic acid encoding a variant polypeptide is fused with a nucleic acid sequence encoding a viral envelope protein, such as a gene III protein or a gene VIII protein.
- a monovalent phage display system has been developed in which a nucleic acid sequence encoding a protein or polypeptide is fused with a nucleic acid sequence encoding a portion of a gene III protein. In the monovalent phage display system, the gene fusion is expressed at low levels and the wild-type Gene III protein is also expressed to maintain particle infectivity.
- Phage display technology has several advantages over conventional hybridoma and recombinant methods for producing antibodies with desired characteristics. This technology allows the generation of large antibody libraries with diverse sequences in a short period of time without using animals. The production of hybridomas or humanized antibodies may require several months of production time. Additionally, because no immunity is required, phage antibody libraries can generate antibodies even against toxic or low antigenic antigens. Phage antibody libraries can also be used to generate and identify new therapeutic antibodies.
- a non-sensitized or non-immune antigen-binding library can be prepared using various lymphoid tissues.
- Isolation of high affinity antibodies from a library can depend on the size of the library, the efficiency of production in bacterial cells, and the diversity of the library.
- the size of the library is reduced by inefficient production due to improper folding of the antibody or antigen-binding protein and the presence of stop codons.
- Expression in bacterial cells can be inhibited if the antibody or antigen binding domain is not properly folded.
- Expression can be improved by alternatively mutating residues on the surface of the variable/invariant interface or in selected CDR residues.
- the sequence of the framework region is one element to provide appropriate folding when generating an antibody phage library in bacterial cells.
- CDR3 regions have been shown to often participate in antigen binding. Since the CDR3 region on the heavy chain varies considerably in size, sequence, and structural conformation, various libraries can be prepared using it.
- diversity can be generated by randomizing the CDR regions of the variable heavy and light chains using all 20 amino acids at each position. Using all 20 amino acids can generate a greater diversity of variant antibody sequences and increase the opportunity to identify novel antibodies.
- the antibody or antibody fragment of the present invention may include not only the sequence of the anti-ROR1 antibody of the present invention described herein, but also its biological equivalent, to the extent that it can specifically recognize ROR1.
- additional changes can be made to the amino acid sequence of the antibody to further improve the binding affinity and/or other biological properties of the antibody.
- Such modifications include, for example, deletions, insertions and/or substitutions of amino acid sequence residues of the antibody. These amino acid mutations are made based on the relative similarity of amino acid side chain substitutions, such as hydrophobicity, hydrophilicity, charge, size, etc.
- arginine, lysine and histidine are all positively charged residues; Alanine, glycine and serine have similar sizes; It can be seen that phenylalanine, tryptophan and tyrosine have similar shapes. Therefore, based on these considerations, arginine, lysine and histidine; Alanine, glycine and serine; And phenylalanine, tryptophan, and tyrosine can be said to be biologically equivalent in function.
- the antibody of the present invention or the nucleic acid molecule encoding the same is interpreted to also include a sequence showing substantial identity with the sequence shown in SEQ ID NO.
- the above-mentioned substantial identity is at least 90% when the sequence of the present invention and any other sequence are aligned to the maximum extent possible and the aligned sequence is analyzed using an algorithm commonly used in the art. It means a sequence showing homology, most preferably at least 95% homology, at least 96% homology, at least 97% homology, at least 98% homology, and at least 99% homology. Alignment methods for sequence comparison are known in the art.
- NCBI Basic Local Alignment Search Tool is accessible from NBCI, etc., and can be used in conjunction with sequence analysis programs such as blastp, blasm, blastx, tblastn, and tblastx on the Internet.
- BLAST can be accessed at www.ncbi.nlm.nih.gov/BLAST/.
- sequence homology comparison method using this program can be found at www.ncbi.nlm.nih.gov/BLAST/blast_help.html.
- the antibody or antigen-binding fragment thereof of the present invention has 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98% compared to the specified sequence or the entire sequence described in the specification. , may have 99% or more homology.
- homology can be determined by sequence comparison and/or alignment by methods known in the art. For example, sequence comparison algorithms (i.e., BLAST or BLAST 2.0), manual alignment, or visual inspection can be used to determine the percent sequence homology of a nucleic acid or protein of the invention.
- the present invention relates to a nucleic acid encoding the antibody or antigen-binding fragment thereof.
- the antibody or antigen-binding fragment thereof can be produced recombinantly by isolating the nucleic acid encoding the antibody or antigen-binding fragment thereof of the present invention.
- Nucleic acid is meant to comprehensively include DNA (gDNA and cDNA) and RNA molecules, and nucleotides, the basic structural unit of nucleic acids, include not only natural nucleotides but also analogues with modified sugar or base sites. .
- the sequences of nucleic acids encoding the heavy and light chain variable regions of the present invention may be modified. The modifications include additions, deletions, or non-conservative or conservative substitutions of nucleotides.
- the DNA encoding the antibody can be easily isolated or synthesized using conventional molecular biology techniques (for example, by using an oligonucleotide probe that can specifically bind to the antibody and the DNA encoding the heavy and light chains). This can be done by isolating the nucleic acid and inserting it into a replicable vector for further cloning (DNA amplification) or further expression. Based on this, the present invention relates to a recombinant expression vector containing the above nucleic acid from another perspective.
- the term "vector” refers to a means for expressing a gene of interest in a host cell, and includes viral vectors such as plasmid vectors, cosmid vectors, bacteriophage vectors, adenovirus vectors, retrovirus vectors, and adeno-associated virus vectors. Includes etc.
- Components of a vector generally include, but are not limited to, one or more of the following: a signal sequence, an origin of replication, one or more antibiotic resistance marker genes, an enhancer element, a promoter, and a transcription termination sequence. Nucleic acids encoding antibodies are operably linked, such as promoter and transcription termination sequences.
- “Operably linked” means a functional linkage between a nucleic acid expression control sequence (e.g., a promoter, signal sequence, or array of transcriptional regulator binding sites) and another nucleic acid sequence, whereby the control sequence is connected to the other nucleic acid sequence. regulates transcription and/or translation.
- a nucleic acid expression control sequence e.g., a promoter, signal sequence, or array of transcriptional regulator binding sites
- a strong promoter capable of advancing transcription e.g., tac promoter, lac promoter, lacUV5 promoter, lpp promoter, pL ⁇ promoter, pR ⁇ promoter, rac5 promoter, amp promoter, recA promoter, SP6 promoter, trp promoter and T7 promoter, etc.
- a ribosome binding site for initiation of translation e.g., amp promoter, recA promoter, SP6 promoter, trp promoter and T7 promoter, etc.
- promoters derived from the genome of mammalian cells e.g., metallothionein promoter, ⁇ -actin promoter, human heroglobin promoter, and human muscle creatine promoter
- mammalian cell genomes Promoters derived from animal viruses (e.g., adenovirus late promoter, vaccinia virus 7.5K promoter, SV40 promoter, cytomegalovirus (CMV) promoter, tk promoter of HSV, mouse mammary tumor virus (MMTV) promoter, LTR promoter of HIV , the promoter of Moloney virus, the promoter of Epstein-Barr virus (EBV), and the promoter of Roux Sarcoma virus (RSV) can be used, and generally have a polyadenylation sequence as a transcription termination sequence.
- adenovirus late promoter vaccinia virus 7.5K promoter
- SV40 promoter cytomegalovirus (CMV) promoter
- tk promoter of HSV e
- the vector may be fused with other sequences to facilitate purification of the antibody expressed therefrom.
- Sequences to be fused include, for example, glutathione S-transferase (Pharmacia, USA), maltose binding protein (NEB, USA), FLAG (IBI, USA), and 6x His (hexahistidine; Quiagen, USA).
- the vector contains an antibiotic resistance gene commonly used in the art as a selection marker, for example, for ampicillin, gentamicin, carbenicillin, chloramphenicol, streptomycin, kanamycin, geneticin, neomycin, and tetracycline. There is a resistance gene.
- the present invention relates to host cells transfected with the above recombinant expression vector.
- Host cells used to produce the antibodies of the present invention may be prokaryotic, yeast, or higher eukaryotic cells, but are not limited thereto.
- Strains of the genus Bacillus such as Escherichia coli, Bacillus subtilus and Bacillus thuringiensis, Streptomyces, Pseudomonas (e.g. Pseudomonas putida) Prokaryotic host cells such as (Pseudomonas putida), Proteus mirabilis, and Staphylococcus (e.g., Staphylocus carnosus) can be used.
- Bacillus such as Escherichia coli, Bacillus subtilus and Bacillus thuringiensis, Streptomyces, Pseudomonas (e.g. Pseudomonas putida)
- Prokaryotic host cells such as (Pseudomonas putida), Proteus mirabilis, and Staphylococcus (e.g., Staphylocus carnosus)
- animal cells are of greatest interest, and examples of useful host cell lines include COS-7, BHK, CHO, CHOK1, DXB-11, DG-44, CHO/-DHFR, CV1, COS-7, HEK293, BHK, TM4, VERO, HELA, MDCK, BRL 3A, W138, Hep G2, SK-Hep, MMT, TRI, MRC 5, FS4, 3T3, RIN, A549, PC12, K562, PER.C6, SP2/0, NS-0 , U20S, or HT1080, but is not limited thereto.
- the present invention includes the steps of culturing the host cells to produce antibodies; and a method for producing an antibody or antigen-binding fragment thereof that specifically binds to ROR1, comprising the steps of isolating and purifying the produced antibody.
- the host cells can be cultured in various media. Any commercially available medium can be used as a culture medium without limitation. All other necessary supplements known to those skilled in the art may also be included in suitable concentrations. Culture conditions, such as temperature, pH, etc., are already used with host cells selected for expression and will be clear to those skilled in the art.
- the antibody or antigen-binding fragment thereof can be recovered by, for example, centrifugation or ultrafiltration to remove impurities, and the resulting product can be purified using, for example, affinity chromatography. Additional other purification techniques may be used, such as anion or cation exchange chromatography, hydrophobic interaction chromatography, hydroxylapatite chromatography, etc.
- the present invention relates to a dual or multispecific antibody comprising the above antibody or antigen-binding fragment thereof.
- a bispecific antibody refers to an antibody that has binding or antagonistic ability to more than one target. It is a combination of antibodies with binding or antagonistic ability to two different targets or an antibody that has binding ability to one target. refers to an antibody that is bound to a substance that has antagonistic activity against a different target.
- a multi-specific antibody refers to an antibody that has binding specificity for at least three different antigens.
- Multispecific antibodies may include antibodies targeting tri-specific or more targets, such as tri-specific antibodies, tetra-specific antibodies, or antibodies targeting more targets. there is.
- Antibodies belonging to bispecific or multispecific antibodies can be divided into scFv-based antibodies, Fab-based antibodies, and IgG-based antibodies.
- they can inhibit or amplify two or more signals at the same time, so they can be more effective than inhibiting/amplifying a single signal, and can be more effective than inhibiting/amplifying a single signal.
- low-dose administration is possible, and two or more signals in the same time and space can be suppressed/amplified.
- bispecific or multispecific antibodies Methods for producing bispecific or multispecific antibodies are well known. Traditionally, the recombinant production of bispecific antibodies is based on the co-expression of two or more immunoglobulin heavy/light chain pairs under conditions where the two or more heavy chains have different specificities.
- a diabody can be created by combining the VL and VH of different scFvs to produce a hybrid scFv in a heterodimeric form, and connecting different scFvs to each other.
- a tendem ScFv can be produced, and a heterodimeric miniantibody can be produced by expressing Fab's CH1 and CL at the end of each scFv, and by substituting some amino acids in the CH3 domain, which is the homodimeric domain of Fc, a 'knob' A minibody in the form of a heterodimeric scFv can be prepared by changing it to a heterodimeric structure in the form of 'into hole' and expressing these changed CH3 domains at the ends of each different scFv.
- Fab-based bispecific or multispecific antibodies individual Fab' for a specific antigen can be combined with each other using a disulfide bond or a mediator to produce a heterodimeric Fab form, and the heavy or light chain of the specific Fab can be produced.
- the antigen-binding valency can be set to two, or by placing a hinge region between Fab and scFv, it can be manufactured to have four antigen-binding valencies in homodimeric form.
- a dual-targeting bibody is created by fusing scFvs for different antigens to the light and heavy chain ends of the Fab, thereby increasing the binding valency for the antigen to three, and fusing different scFvs to the light and heavy chain ends of the Fab, respectively, to the antigen.
- a triple-targeted bibody with a binding valency of 3 can be obtained by chemically conjugating 3 different Fabs.
- bispecific or multispecific antibodies based on IgG hybrid hybridomas, so-called quadromas, were produced by recrossing mouse and rat hybridomas by Trion Pharma. Therefore, methods for producing bispecific antibodies are known.
- bispecific antibodies can be manufactured in the so-called 'Holes and Knob' form, which is made into a heterodimeric form by modifying some amino acids of the CH3 homodimeric domain of Fc for different heavy chains while sharing the light chain part.
- homodimeric (scFv)4-IgG can be produced by fusion-expressing two different scFvs to the constant domains instead of the variable domains of the light and heavy chains of IgG.
- ImClone is based on IMC-1C11, a chimeric monoclonal antibody against human VEGFR-2, and attaches mouse Platelet-derived Growth Factor Receptor- ⁇ to the light chain amino terminus of this antibody. ) was produced and reported by fusing only a single variable domain.
- multiple antigen binding to CD20 is possible through the so-called 'dock and lock (DNL)' method using the dimerization and docking domain (DDD) of the protein kinase A (PKA) R subunit and the anchoring domain of PKA. It can be produced as an antibody having .
- DDD dimerization and docking domain
- PKA protein kinase A
- bispecific, trivalent, or tetravalent bispecific or multispecific antibodies include bispecific, trivalent, or tetravalent bispecific or multispecific antibodies.
- International Patent Application Publication Nos. WO2001/077342, WO2009/080251, WO2009/080252, WO2009/080253, WO2009/080254, WO2010/112193, WO2010/115589 It also includes bivalent, trivalent, or tetravalent antibodies described in WO2010/136172, WO2010/145792, WO2010/145793, and WO2011/117330.
- a bivalent, trivalent, or tetravalent antibody indicates that two or more binding domains, three or more binding domains, or four or more binding domains are present in the antibody molecule, respectively.
- the dual or multispecific antibody according to the present invention may be an anti-ROR1 antibody or antigen-binding fragment, specifically an IgG complete antibody or fragment form thereof, such as a single chain Fv, V H domain and/or V L It may be included in the form of a domain, Fab or (Fab) 2 .
- the bispecific antibody according to the present invention is ROR1 and PD-1, PD-L1, BTLA, CTLA-4, VISTA, LAG3, TIM3, CD137 (4-1BB), VISTA, CD258 (LIGHT), TIGIT , CD134(OX40), CD28, CD278(ICOS), CD27, CD154(CD40L), CD357(GITR), CD30, DR3, CD226(DNAM1), CD96, CD200, CD200R, Transferrin receptor, c-Met, EGFR, HER2 , KDR, PDGFRa, NRP1, and MARCO can be simultaneously targeted at one or more selected from the group.
- the multispecific antibodies according to the present invention include ROR1, PD-1, PD-L1, BTLA, CTLA-4, VISTA, LAG3, TIM3, CD137 (4-1BB), VISTA, CD258 (LIGHT), TIGIT , CD134(OX40), CD28, CD278(ICOS), CD27, CD154(CD40L), CD357(GITR), CD30, DR3, CD226(DNAM1), CD96, CD200, CD200R, Transferrin receptor, c-Met, EGFR, HER2 , KDR, PDGFRa, NRP1, and MARCO can be simultaneously targeted at two or more selected from the group.
- the present invention provides an immune cell engaging bispecific or It relates to multispecific antibodies.
- the immune cell engaging bispecific or multispecific antibody temporarily induces a cytolytic synapse between cytotoxic T cells and cancer target cells to release toxic substances.
- the immune cells include T cells, NK cells, cytokine-induced killer cells (CIK), activated cytotoxic T lymphocytes (CTL), macrophages, and T infiltrating tumor tissue. It may be one or more cells selected from the group consisting of Tumor-Infiltrating Lymphocytes (TIL) and dendritic cells.
- TIL Tumor-Infiltrating Lymphocytes
- the immune cell activating antigen may be selected from, for example, the following, and an antibody that binds to it may serve to engage immune cells:
- T cell activating antigens include CD3, TCR ⁇ , TCR ⁇ , TCR ⁇ , TCR ⁇ , ICOS, CD28, CD27, HVEM, LIGHT, CD40, 4-1BB, OX40, DR3, GITR, CD30, TIM1, SLAM, CD2, or CD226;
- NK cell activation antigens include NKp30, NKp40, NKp44, NKp46, NKG2D, DNAM1, DAP10, CD16 (e.g., CD16a, CD16b), CRTAM, CD27, PSGL1, CD96, CD100 (SEMA4D), NKp80, CD244 (SLAMF4 or 2B4), SLAMF6, SLAMF7, KIR2DS2, KIR2DS4, KIR3DS1, KIR2DS3, KIR2DS5, KIR2DS1, CD94, NKG2C, NKG2E or CD160;
- CD16 e.g., CD16a, CD16b
- CRTAM CD27, PSGL1, CD96, CD100 (SEMA4D)
- NKp80 CD244
- SLAMF4 or 2B4 SLAMF6, SLAMF7, KIR2DS2, KIR2DS4, KIR3DS1, KIR2DS3, KIR2DS5, KIR2DS1, CD94, NKG2
- B cell activating antigens are OX40, CD40, or CD70;
- Macrophage activation antigens include CD2 agonist, CD40, CD70, Toll-like receptor (TCR) agonist, CD47, STING, or OX40L; or
- the dendritic cell activating antigen is a CD2 agonist, OX40, OX40L, 41BB agonist, TCR agonist, CD47 agonist, or STING agonist.
- Immune cell engager is specifically described in US Patent Application Publication No. 2017/0368169, which may be incorporated by reference into the present invention.
- the immune cell engaging bispecific or multispecific antibody comprises a tandem scFv and can bind to the following antigens and surface antigens on cancer cells.
- the surface antigen on the cancer cells is ROR1, targeted by the antibody according to the invention:
- CD16 e.g., CD16a, CD16b
- CRTAM CD27, PSGL1, CD96, CD100 (SEMA4D)
- NKp80 CD244
- SLAMF4 or 2B4 SLAMF6, SLAMF7, KIR2DS2 , KIR2DS4, KIR3DS1, KIR2DS3, KIR2DS5, KIR2DS1, CD94, NKG2C, NKG2E
- CD2 agonist CD40, CD70, Toll-like receptor (TCR) agonist, CD47, STING, or OX40L; or
- CD2 agonist OX40, OX40L, 41BB agonist, TCR agonist, CD47 agonist, or STING agonist.
- the immune cell engaging bispecific or multispecific antibodies are, for example, VL(ROR1)-VH(ROR1)-VH(CD3 or CD16A)-VL(CD3 or CD16A), VH(ROR1)-VL(ROR1) )-VH(CD3 or CD16A)-VL(CD3 or CD16A), VH(CD3 or CD16A)-VL(CD3 or CD16A)-VH(ROR1)-VL(ROR1) or VH(CD3 or CD16A)-VL(CD3) Alternatively, it may include a structure in the form of CD16A)-VL(ROR1)-VH(ROR1).
- the scFv includes a heavy chain variable region comprising at least one amino acid sequence selected from the group consisting of SEQ ID NO: 122 to SEQ ID NO: 152 and SEQ ID NO: 188 to SEQ ID NO: 193, and SEQ ID NO: 153 to SEQ ID NO: 183 and SEQ ID NO: 194 to 194. It includes a light chain variable region comprising at least one amino acid sequence selected from the group consisting of SEQ ID NO: 199, and the heavy chain variable region and the light chain variable region may be connected by a linker.
- the linker may be a peptide linker and may be about 10-25 aa long.
- hydrophilic amino acids such as glycine and/or serine may be included.
- the linker may include, for example, (GS)n, (GGS)n, (GSGGS)n or (GnS)m (n, m are each 1 to 10), but the linker may include, for example, (G n S) m (n and m may be 1 to 10, respectively).
- the linker may include GGGGS, for example, GGGGSGGGGSGGGGS of SEQ ID NO: 200 repeated three times.
- Examples of the immune cell engaging bispecific or multispecific antibodies include blinatumomab (Amgen) that binds to CD3 and CD19; solitomab (Amgen), which binds to CD3 and EpCAM; MEDI 565 (MedImmune, Amgen), which binds CD3 and CEA; and BAY2010112 (Bayer, Amgen), which binds CD3 and PSMA.
- Exemplary DARTs include MGD006 (Macrogenics), which binds CD3 and CD123; and MGD007 (Macrogenics), which binds to CD3 and gpA33.
- Exemplary TandAbs include AFM11 (Affimed Therapeutics), which binds CD3 and CD19; and AFM13 (Affimed Therapeutics), which binds to CD30 and CD16A.
- ADC Antibody-Drug Conjugate
- the present invention relates to an antibody-drug conjugate (ADC) in which the antibody or antigen-binding fragment thereof is bound to a drug.
- ADC antibody-drug conjugate
- Anticancer drug conjugates require the anticancer drug to be stably bound to the antibody until the anticancer drug is delivered to the target cancer cells.
- the drug delivered to the target must be released from the antibody and induce death of the target cell.
- the drug must stably bind to the antibody and at the same time have sufficient cytotoxicity to induce death of the target cell when released from the target cell.
- the antibody may be linked to a drug through a linker.
- the linker is a site that connects the anti-ROR1 antibody and the drug, and allows the drug to be released from the antibody in a cleavable form under intracellular conditions, that is, in the intracellular environment. Reflecting the long half-life of the antibody, the antibody circulates throughout the body. It must be stable and the binding of the linker to the drug must not affect the stability and pharmacokinetics of the antibody.
- the linker may include, for example, a cleavable linker or a non-cleavable linker.
- a cleavable linker like a peptide linker, it can be cleaved by intracellular peptidase or protease enzymes, such as lysosomal or endosomal proteases, and in the case of a non-cleavable linker, for example, a thioether linker, the antibody can be cleaved by intracellular hydrolysis. The drug may be released after non-selective degradation.
- the cleavable linker may include a peptide linker.
- the peptide linker has a length of at least two amino acids.
- Val-Cit, Val-Ala, or a dipeptide of Val-Cit or Phe-Leu or Gly-Phe-Leu-Gly may be included.
- linkers are specifically described in International Patent Application Publication No. WO2004/010957, which may be incorporated by reference into the present invention.
- the antibody-drug conjugate binds the antibody region of the ADC to the antigen of the target cancer cell to form an ADC-antigen complex and is then internalized into the cancer cell through the endosome-lysosomal pathway.
- the intracellular release of cytotoxic drugs is controlled by the internal environment of endosomes/lysosomes.
- the cleavable linker is pH sensitive, meaning it may be susceptible to hydrolysis at certain pH values.
- pH sensitive linkers indicate that they can be hydrolyzed under acidic conditions.
- acid labile linkers that can be hydrolyzed in lysosomes such as hydrazone, semicarbazone, thiosemicarbazone, cis-aconitic amide, orthoester, acetal, It may be ketal, etc.
- the linker may be cleaved under reducing conditions, for example, a disulfide linker.
- SATA N-succinimidyl-S-acetylthioacetate
- SPDP N-succinimidyl-3-(2-pyridyldithio)propionate
- SPDB N-succinimidyl-3-(2-pyridyldithio)butyrate
- SMPT N-succinimidyl-oxycarbonyl
- a variety of disulfide bonds can be formed using -alpha-methyl-alpha-(2-pyridyl-dithio)toluene).
- This disulfide linker can be cleaved by disulfide exchange with the thiol of intracellular glutathione.
- the drug and/or drug-linker may be randomly conjugated through the lysine of the antibody, or may be conjugated through the cysteine exposed when the disulfide bond chain is reduced.
- a linker-drug may be bound through a genetically engineered tag, for example, cysteine present in a peptide or protein.
- the genetically engineered tag for example, a peptide or protein, may include an amino acid motif that can be recognized by, for example, isoprenoid transferase.
- the peptide or protein has a deletion at the carboxy terminus of the peptide or protein, or has a covalent addition of a spacer unit to the carboxy (C) terminus of the peptide or protein.
- the peptide or protein may be directly covalently linked to the amino acid motif or may be covalently linked to the amino acid motif with a spacer unit.
- the amino acid spacer unit consists of 1 to 20 amino acids, of which glycine unit is preferable.
- the isoprenoid transferase may be, for example, farnesyltransferase (FTase, farnesyl protein transferase) or geranylgeranyl transferase (GGTase), and FTase and GGTase I are of the formula 1 mentioned above. It can recognize the CAAX motif, and GGTase II can recognize the XXCC, XCXC or CXX motif (where C is cysteine, A is an aliphatic amino acid, and there is.
- FTase farnesyltransferase
- GGTase II can recognize the XXCC, XCXC or CXX motif (where C is cysteine, A is an aliphatic amino acid, and there is.
- the linker may include a beta-glucuronide linker that is recognized and hydrolyzed by beta-glucuronidase, which is present in large numbers in lysosomes or overexpressed in some tumor cells. You can. Unlike peptide linkers, it has a large hydrophilicity and has the advantage of increasing the solubility of the antibody-drug complex when combined with a highly hydrophobic drug.
- beta-glucuronide linker disclosed in International Patent Application Publication No. WO2015/182984, for example, a beta-glucuronide linker containing a self-immolative group can be used; , the above documents are incorporated by reference.
- the linker may be, for example, a non-cleavable linker, and the drug is released through only one step of antibody hydrolysis within the cell, producing, for example, an amino acid-linker-drug complex.
- This type of linker can be a thioether group or maleimidocaproyl group and can maintain stability in the blood.
- the linker-drug may be linked randomly through cysteine exposed when the disulfide bond chain of the antibody is reduced or by introducing an antibody terminal binding peptide having the sequence GGGGGGGCVIM.
- the drug is an agent that exhibits pharmacological effects and may be bound to an antibody, and may specifically be a chemotherapeutic agent, toxin, micro RNA (miRNA), siRNA, shRNA, or radioactive isotope.
- the chemotherapy agent may be, for example, a cytotoxic agent or an immunosuppressive agent. Specifically, it may include a microtubulin inhibitor, a mitotic inhibitor, a topoisomerase inhibitor, or a chemotherapeutic agent that can function as a DNA intercalator. Additionally, it may include immunomodulatory compounds, anticancer agents, antiviral agents, antibacterial agents, antifungal agents, anthelmintic agents, or combinations thereof.
- drugs include, for example, maytansinoids, auristatin (including MMAE, MMAF), aminopterin, actinomycin, bleomycin, thalisomycin, camptocecin, N8-acetyl spermidine, 1-(2 Chloroethyl)-1,2-dimethyl sulfonyl hydrazide, esferamycin, etoposide, 6-mercaptopurine, dolastatin, trichothecene, calicheamicin, taxol, taxane, paclitaxel , docetaxel, methotrexate, vincristine, vinblastine, doxorubicin, melphalan, mitomycin A, mitomycin C, chlorambucil, duocamycin, L-asparaginase, mercaptopurine (mercaptopurine), thioguanine, hydroxyurea, cytarabine, cyclophosphamide, if
- the drug may be an amine, thiol, hydroxyl, hydrazide, oxime, hydrazine, thiosemicarbazone, hydrazine carboxylate, or And it may include one or more nucleophilic groups selected from the group consisting of an arylhydrazide group.
- an ADC was produced in which the antibody or antigen-binding fragment thereof according to the present invention was linked to a drug, such as auristatin (MMAE), through an MC-vc-PAB linker. It was confirmed that this ADC exhibited the desired cytotoxicity.
- a drug such as auristatin (MMAE)
- the present invention is a chimeric antigen receptor (CAR) comprising an extracellular domain including an antigen binding site, a transmembrane domain, and an intracellular signaling domain, wherein the antigen binding site of the extracellular domain is the scFv of the antibody. It relates to a chimeric antigen receptor characterized in that:
- Chimeric antigen receptor is a synthetic construct designed to induce an immune response against a target antigen and cells expressing the antigen.
- CARs include an extracellular domain, a transmembrane domain, and an intracellular signaling domain.
- Cancer cells can be killed by introducing a gene encoding a receptor that recognizes a cancer cell surface antigen specifically expressed on the surface of cancer cells into immune cells. Through immune cells that contain receptors that bind to antigens specifically expressed in cancer cells, an immune response can be generated by targeting only cancer cells.
- the CAR contains the scFv of the anti-ROR1 antibody according to the present invention as an antigen recognition site of the extracellular domain.
- the first generation CAR contains an extracellular domain including an antigen recognition site specifically expressed in cancer cells, a transmembrane domain, and an intracellular signaling domain, and only CD3 ⁇ was used as the signaling domain, but the therapeutic effect on cancer was minimal. There was a problem that the duration was short.
- This first generation CAR is specifically described in U.S. Patent No. 6,319,494, which is incorporated herein by reference.
- a second-generation CAR was manufactured combining a co-stimulatory domain (CD28 or CD137/4-1BB) and CD3 ⁇ . Compared to the first-generation CAR, the number of CAR-containing immune cells remaining in the body was significantly increased. While the second generation CAR used one costimulation domain, the third generation CAR used two or more costimulation domains. To achieve expansion and persistence of CAR-containing immune cells in vivo, the costimulatory domain can be combined with 4-1BB, CD28, or OX40.
- the second-generation CAR is specifically described in U.S. Patent No. 7,741,465, 7,446,190, or No. 9,212,229, and the third-generation CAR is specifically described in U.S. Patent No. 8,822,647, which is incorporated herein by reference.
- the 4th generation CAR includes additional genes encoding cytokines such as IL-12 or IL-15, allowing additional expression of CAR-based immune proteins of cytokines, while the 5th generation CAR contains interleukin to strengthen immune cells. It further comprises a receptor chain, for example IL-2R ⁇ .
- the 4th generation CAR is specifically described in US Patent No. 10,316,102, and the 5th generation CAR is specifically described in US Patent No. 10,336,810, which are incorporated herein by reference.
- the antigen binding site of the extracellular domain is an scFv of an antibody.
- the VH and VL domains may be connected via a linker.
- the heavy chain variable region containing one or more amino acid sequences selected from the group consisting of SEQ ID NO: 122 to SEQ ID NO: 152 and SEQ ID NO: 188 to SEQ ID NO: 193 is linked to SEQ ID NO: 153 to SEQ ID NO: 183 and SEQ ID NO: 194 to SEQ ID NO: 199 through a linker. It may be linked to a light chain variable region containing one or more amino acid sequences selected from the group consisting of.
- the linker may be a peptide linker and may be about 10-25 aa long.
- hydrophilic amino acids such as glycine and/or serine may be included.
- the linker may include, for example, (GS) n , (GGS) n , (GSGGS) n or (G n S) m (n, m are each 1 to 10), but the linker may include, for example (G n S) m (n and m may each be 1 to 10).
- the linker may include GGGGS, for example, GGGGSGGGGSGGGGS of SEQ ID NO: 200 repeated three times.
- the transmembrane domain may be derived from natural or synthetic sources. If the source is natural, the domain may be derived from any membrane-bound or transmembrane protein.
- the transmembrane domain is alpha, beta of T-cell receptor, CD28, CD3 epsilon, CD45, CD4, CD5, CD8, CD9, CD16, CD22, CD33, CD37, CD64, CD80, CD86, CD134, CD137, CD154, ICOS Or it may contain a zeta chain. When synthesizing the transmembrane domain, it may include hydrophobic residues such as leucine and valine, or peptides containing phenylalanine, tryptophan, and valine at each end.
- a short oligo- or polypeptide linker 2 to 10 amino acids in length, can form the linkage between the transmembrane domain and the cytoplasmic signaling domain of the CAR.
- Glycine-serine peptide can be used as a linker.
- the signaling domain can induce activation of the normal effector functions of the immune cell in which the CAR is placed. For example, cytolytic activation or helper activation can be induced through the secretion of cytokines.
- the signaling domain may comprise a truncated fragment of the intracellular signaling domain sufficient to transduce an effector function signal.
- the signaling domain may include the cytoplasm of the T cell receptor (TCR) and co-receptors that act cooperatively to initiate signal transduction following antigen receptor engagement.
- TCR T cell receptor
- T cell activation may involve initiating antigen-dependent primary activation via the TCR and acting in an antigen-dependent manner to provide secondary or co-stimulatory signals.
- Primary cytoplasmic signaling sequences regulate primary activation of the TCR complex either in a stimulatory or an inhibitory manner.
- Primary cytoplasmic signaling sequences that act in a stimulatory manner may contain signaling motifs known as immunoreceptor tyrosine-based activation motifs, or ITAMs.
- ITAMs containing primary cytoplasmic signaling sequences may include TCR zeta, FcR gamma, FcR beta, CD3 gamma, CD3 delta, CD3 epsilon, CD5, CD22, CD79a, CD79b, and CD66d.
- the cytoplasmic domain of the CAR may include a CD3 zeta chain portion and a costimulatory signaling domain.
- Costimulatory signaling domain refers to the portion of the CAR that contains the intracellular domain of the costimulatory molecule.
- CD27, CD28, 4-1BB (CD137), OX40, CD30, CD40, PD-1, ICOS, lymphocyte function-related antigen-1 (LFA-1), CD2, CD7, LIGHT, NKG2C, B7- H3, and a ligand that specifically binds to CD83 may be included.
- Cytoplasmic signaling sequences within the cytoplasmic signaling portion of the CAR may be linked via a peptide linker containing 2 to 10 amino acids, for example, glycine-serine.
- the present invention relates to immune cells into which the chimeric antigen receptor (CAR) has been introduced.
- CAR chimeric antigen receptor
- the immune cells are capable of inducing immunity and causing the desired cancer treatment effect, for example, T cells, NK cells, Cytokine Induced Killer cells (CIK), and activated cytotoxic T lymphocytes (Cytotoxic cells). It may be selected from the group consisting of T lymphocytes (CTL), macrophages, tumor-infiltrating lymphocytes (TIL), and dendritic cells, but is not limited thereto.
- TTL T lymphocytes
- TIL tumor-infiltrating lymphocytes
- dendritic cells dendritic cells
- Antibodies other than the above antibodies include, for example, PD-1, PD-L1, BTLA, CTLA-4, VISTA, LAG3, TIM3, CD137 (4-1BB), VISTA, CD258 (LIGHT), TIGIT, CD134 (OX40), CD28, CD278 (ICOS), CD27, CD154 (CD40L), CD357 (GITR), CD30, DR3, CD226 (DNAM1), CD96, CD200, CD200R, Transferrin receptor, c-Met, EGFR, HER2, KDR, PDGFRa, NRP1 It may be an antibody or antigen-binding fragment thereof targeting one or more selected from the group consisting of MARCO.
- the present invention relates to the antibody or antigen-binding fragment thereof, a dual or multispecific antibody comprising the antibody or antigen-binding fragment thereof, an antibody-drug conjugate comprising the antibody or antigen-binding fragment thereof, the antibody or It relates to a composition for preventing or treating cancer containing a chimeric antigen receptor containing an antigen-binding fragment thereof or an immune cell containing the chimeric antigen receptor.
- the present invention includes, for example, (a) an antibody against ROR1 according to the invention or an antigen-binding fragment thereof, a dual or multispecific antibody comprising said antibody or antigen-binding fragment thereof, said antibody or antigen-binding fragment thereof; A pharmaceutically effective amount of an antibody-drug conjugate, a chimeric antigen receptor comprising the antibody or antigen-binding fragment thereof, or an immune cell comprising the chimeric antigen receptor; and (b) a pharmaceutically acceptable carrier.
- the present invention also provides an antibody against ROR1 or an antigen-binding fragment thereof according to the present invention, a dual or multispecific antibody comprising the antibody or antigen-binding fragment thereof, and an antibody-drug conjugate comprising the antibody or antigen-binding fragment thereof. , it may be a method for preventing or treating cancer, comprising administering a chimeric antigen receptor containing the antibody or an antigen-binding fragment thereof, or an immune cell containing the chimeric antigen receptor, to a cancer patient.
- Prevention refers to any action that inhibits the growth or delays the progression of cancer by administering the composition according to the present invention
- treatment refers to inhibition of cancer development, alleviation of tumor, or removal of cancer.
- Such cancers include, for example, Hodgkin's lymphoma, non-Hodgkin's lymphoma (e.g., B cell lymphoma, diffuse large B cell lymphoma, follicular lymphoma, chronic lymphocytic leukemia, mantle cell lymphoma, marginal zone B cell lymphoma, Burkitt's lymphoma). , lymphoplasmacytic lymphoma, hairy cell leukemia), acute myeloid leukemia, chronic myeloid leukemia, myelodysplastic syndrome, multiple myeloma, or acute lymphocytic leukemia.
- non-Hodgkin's lymphoma e.g., B cell lymphoma, diffuse large B cell lymphoma, follicular lymphoma, chronic lymphocytic leukemia, mantle cell lymphoma, marginal zone B cell lymphoma, Burkitt's lymphoma
- the cancers include, for example, ovarian cancer, rectal cancer, stomach cancer, testicular cancer, anal cancer, uterine cancer, colon cancer, rectal cancer, renal cell carcinoma, liver cancer, non-small cell carcinoma of the lung, small intestine cancer, esophageal cancer, melanoma, Kaposi's sarcoma, Endocrine cancer, thyroid cancer, parathyroid cancer, adrenal cancer, bone cancer, pancreatic cancer, skin cancer, head and neck cancer, skin or intraocular malignant melanoma, uterine cancer, brain stem glioma, pituitary adenocarcinoma, epidermoid cancer, cervical squamous cell carcinoma, fallopian tube cancer.
- CNS central nervous system
- the cancer may be, for example, glioblastoma, lung cancer, bladder cancer, oral cancer, head and neck squamous cell cancer, gallbladder cancer, or cervical cancer.
- compositions of the present invention are those commonly used in preparation, and include lactose, dextrose, sucrose, sorbitol, mannitol, starch, gum acacia, calcium phosphate, alginate, gelatin, and calcium silicate. , microcrystalline cellulose, polyvinylpyrrolidone, water, syrup, methyl cellulose, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate and mineral oil, but are not limited thereto.
- the composition of the present invention may further include lubricants, wetting agents, sweeteners, flavoring agents, emulsifiers, suspending agents, preservatives, etc.
- the pharmaceutical composition of the present invention can be administered orally or parenterally, and in the case of parenteral administration, intravenous injection, subcutaneous injection, intramuscular injection, intraperitoneal injection, endothelial administration, topical administration, intranasal administration, intrapulmonary administration, and intrarectal administration. It can be administered, etc.
- compositions When administered orally, proteins or peptides are digested, so oral compositions must be formulated to coat the active agent or protect it from degradation in the stomach. Additionally, pharmaceutical compositions can be administered by any device that allows the active agent to move to target cells.
- the suitable dosage of the composition according to the present invention varies depending on factors such as formulation method, administration method, patient's age, weight, sex, pathological condition, food, administration time, administration route, excretion rate and reaction sensitivity, and is usually A skilled doctor can easily determine and prescribe an effective dosage for desired treatment or prevention.
- the daily dosage of the pharmaceutical composition of the present invention is 0.0001-100 mg/kg.
- the term “pharmaceutically effective amount” refers to an amount sufficient to prevent or treat cancer or autoimmune disease.
- the pharmaceutical composition of the present invention is prepared in unit dosage form by formulating it using a pharmaceutically acceptable carrier and/or excipient according to a method that can be easily performed by a person skilled in the art. Alternatively, it can be manufactured by placing it in a multi-capacity container. At this time, the formulation may be in the form of a solution, suspension, or emulsion in an oil or aqueous medium, or may be in the form of an extract, powder, suppository, powder, granule, tablet, or capsule, and may additionally contain a dispersant or stabilizer.
- the present invention relates to the antibody or antigen-binding fragment thereof, a dual or multispecific antibody comprising the antibody or antigen-binding fragment, an antibody-drug conjugate, a chimeric antigen receptor, or an immune cell comprising the chimeric antigen receptor. It relates to a composition for treating cancer, including.
- the present invention also provides administration of the antibody or antigen-binding fragment thereof, a dual or multispecific antibody containing the antibody or antigen-binding fragment, an antibody-drug conjugate, a chimeric antigen receptor, or an immune cell containing the chimeric antigen receptor. It relates to a cancer treatment method including the steps of:
- the present invention provides the antibody or antigen-binding fragment thereof, a dual or multispecific antibody comprising the antibody or antigen-binding fragment, an antibody-drug conjugate, a chimeric antigen receptor, or the chimera for the prevention or treatment of cancer. It relates to the use of immune cells containing antigen receptors.
- the present invention relates to the antibody or antigen-binding fragment thereof, a dual or multispecific antibody comprising the antibody or antigen-binding fragment, an antibody-drug conjugate, or a chimeric antigen receptor for the production of a drug for preventing or treating cancer. Or it relates to the use of immune cells containing the chimeric antigen receptor.
- the present invention relates to a composition for combination therapy comprising immune cells and drugs other than anti-ROR1 antibodies.
- the drug other than the anti-ROR1 antibody may include a chemotherapy agent or an antibody other than the anti-ROR1 antibody.
- drugs include maytansinoids, auristatin (including MMAE, MMAF), aminopterin, actinomycin, bleomycin, thalisomycin, camptothecin, N8-acetyl spermidine, 1-(2 chloroethyl)- 1,2-dimethyl sulfonyl hydrazide, esferamycin, etoposide, 6-mercaptopurine, dolastatin, trichothecene, calicheamicin, taxol, taxane, paclitaxel, docetaxel ), methotrexate, vincristine, vinblastine, doxorubicin, melphalan, mitomycin A, mitomycin C, chlorambucil, duocamycin, L-asparaginase, mercaptopurine, Thioguanine, hydroxyurea, cytarabine, cyclophosphamide, ifosfamide, nitrosourea,
- antibodies other than the anti-ROR1 antibody include, for example, PD-1, PD-L1, BTLA, CTLA-4, VISTA, LAG3, TIM3, CD137 (4-1BB), VISTA, CD258 (LIGHT ), TIGIT, CD134(OX40), CD28, CD278(ICOS), CD27, CD154(CD40L), CD357(GITR), CD30, DR3, CD226(DNAM1), CD96, CD200, CD200R, Transferrin receptor, c-Met, It may be an antibody or antigen-binding fragment thereof targeting one or more selected from the group consisting of EGFR, HER2, KDR, PDGFRa, NRP1, and MARCO.
- the present invention relates to a composition for combination treatment comprising an antibody or antigen-binding fragment thereof and at least one selected from the group consisting of:
- CAR antigen receptor
- the present invention relates to a composition for combination treatment comprising the above immune cell engaging bispecific or multispecific antibody and one or more selected from the group consisting of:
- CAR antigen receptor
- the immune cells can induce the desired cancer treatment effect by inducing immunity, for example, T cells, NK cells, cytokine induced killer cells (CIK), activated cells. It may be selected from the group consisting of Cytotoxic T Lymphocytes (CTL), macrophages, Tumor-Infiltrating Lymphocytes (TIL), and dendritic cells, but is not limited thereto.
- TTL Cytotoxic T Lymphocytes
- TIL Tumor-Infiltrating Lymphocytes
- dendritic cells dendritic cells
- Antibodies other than the above anti-ROR1 antibodies are antibodies targeting targets other than ROR1, such as LAG3, TIM3, CD137 (4-1BB), VISTA, CD258 (LIGHT), TIGIT, CD134 (OX40), CD28, CD278. (ICOS), CD27, CD154 (CD40L), CD357 (GITR), CD30, DR3, CD226 (DNAM1), CD96, CD200, CD200R, Transferrin receptor, c-Met, EGFR, HER2, KDR, PDGFRa, NRP1, or MARCO It may be an antibody that binds to or an antigen-binding fragment thereof, but is not limited thereto.
- targets other than ROR1 antibodies such as LAG3, TIM3, CD137 (4-1BB), VISTA, CD258 (LIGHT), TIGIT, CD134 (OX40), CD28, CD278. (ICOS), CD27, CD154 (CD40L), CD357 (GITR), CD30, DR3, CD226 (DNAM
- the immune checkpoint inhibitor refers to an agent that can induce T cell activation by blocking T cell inhibitory signals at the site where antigen presenting cells (APCs, antigen presenting cells) and immune cells, such as T cells, meet.
- the immune checkpoint inhibitors include, for example, PD-1, PD-L1, BTLA, CTLA-4, VISTA, LAG3, TIM3, CD137 (4-1BB), CD258 (LIGHT), TIGIT, CD134 (OX40), CD28, It may be a drug targeting CD278 (ICOS), CD27, CD154 (CD40L), CD357 (GITR), CD30, DR3, CD226 (DNAM1), CD96, CD200, or CD200R, but is not limited thereto.
- Each of the first and second components subject to combined administration may be administered simultaneously.
- each of the first and second components subject to combined administration may be administered separately at certain time intervals.
- the second component may be administered separately before or after administration of the first component.
- kanamycin antibiotic an antibiotic gene introduced into the helper phage
- PEG 8000 polyethylene glycol 8000
- NaCl sodium chloride
- the phage library was recovered by centrifuging at 10,000g, 4°C for 30 minutes, adding PBS to the precipitated pellet, and then centrifuging at 15,000g, 4°C for 30 minutes, adding PBS to the precipitated phage pellet.
- concentration of the amplified sub-library was calculated as the number of colonies generated by diluting the recovered phage, infecting TG1 cells, and culturing them on LB/ampicillin solid culture medium.
- Panning was performed to select human antibodies that specifically bind to ROR1.
- Biopanning was performed using ROR1-Fc, ROR1-His proteins, and patient-derived cells as follows.
- the recombinant antigen is Human ROR1 Fc protein (R&D systems, 9490-RO, Recombinant Human ROR1 Fc Chimera Protein, CF) and human ROR1 His protein (Sino Biological, 13968-H08H, ROR1 Protein, Human, Recombinant (ECD, His Tag).
- LC-074T which overexpresses ROR1 and is owned by Aimed Bio, was used as the patient-derived cell.
- Antigen fixation biopanning human ROR1 Fc protein and negative Fc protein at a concentration of 5-10 ⁇ g/ml were coated on a 96-well plate at 4°C for 16 hours and blocked using 3% skim milk. . After emptying the plate, the library (approximately 2.0x10 13 pfu) was added to a plate coated with negative Fc protein and reacted at room temperature for 30 minutes. This is a step to prevent non-specific binding other than ROR1 by removing phages that bind to proteins other than human ROR1 from the antibody phage library. Phages that did not bind to the negative Fc protein were recovered and bound to a plate coated with human ROR1 Fc for 1 hour.
- Bead-based bio-panning Repeated bead panning was performed by attaching magnetic beads to biotinylated human ROR1 protein. Streptavidin-conjugated magnetic beads (Invitrogen, 11206D, DynabeadsTM M-280 Streptavidin) were used, and human conjugation was performed using a Biotinylation Kit (abcam, ab201795, Biotin Conjugation Kit (Fast, Type A) - Lightning-Link®). ROR1 protein was biotinylated.
- the library bound to human ROR1 beads was recovered using a magnetic bead separator, washed 7-12 times with PBST (Phosphate buffered saline-0.1% Tween 20) solution and PBS solution, and then washed with IgG Elution Buffer (Thermo Scientific, 21028). , PierceTM IgG Elution Buffer, pH 2.0) was used to elute the phage antibodies bound to biotinylated human ROR1-beads. A total of three rounds were conducted, and the results of bead-based bio-panning are shown in Table 2.
- PBST Phosphate buffered saline-0.1% Tween 20
- IgG Elution Buffer PierceTM IgG Elution Buffer, pH 2.0
- Bio-panning using patient-derived cells Phage antibodies obtained from antigen-immobilized bio-panning and bead-based bio-panning were treated with Jurkat cells and bound to them for 1 hour at 4°C, and the supernatant that did not bind to cells derived from patients overexpressing ROR1 was recovered. This is a step to prevent non-specific binding other than ROR1 by removing phages that bind to cell membrane proteins other than ROR1 from the phage antibody. The recovered supernatant was treated with LC-074T (1.5 Afterwards, to remove phages that did not bind to the patient-derived cells, they were transferred to a 15 ml conical tube and centrifuged at 1,000 g for 3 minutes to separate the cells.
- scFv screening was performed to select monoclonal antibodies that specifically bind to ROR1 from the phages recovered through the final round of panning. Colonies from the final round of panning were taken, inoculated into a 96-well plate containing 200 ⁇ l SB/ampicillin culture medium, and cultured at 37°C for 2-3 hours. Afterwards, to induce scFv-pIII protein expression, each well was treated with IPTG (Isopropyl ⁇ -D-1-thiogalactopyranoside) at a final concentration of 1 mM and cultured overnight at 30°C.
- IPTG Isopropyl ⁇ -D-1-thiogalactopyranoside
- the cultured plate was centrifuged at 3,000 rpm for 15 minutes to remove the supernatant, and then 40 ⁇ l of TES (50 mM Tris, 1 mM EDTA, 20% Sucrose, pH 8.0) solution was added to each well to recover phage particles. Cells were lysed for 30 minutes at room temperature. Afterwards, cells were lysed by treatment with 60 ⁇ l of 0.2
- the supernatant was added to each well in a 96-well plate coated with human ROR1, mouse ROR1, and negative Fc protein, allowed to bind at room temperature for 2 hours, and then washed four times with PBST and distilled water. Afterwards, it was bound at room temperature for 1 hour using an anti-HA antibody containing HRP that can bind to the HA tag, and then washed six times using PBST and distilled water. After developing color by adding TMB Substrate Solution (Thermo Scientific, 34029, 1-StepTM Ultra TMB-ELISA Substrate Solution), the color reaction was stopped with stop solution (Invitrogen, SS04, ELISA Stop Solution), and the absorbance was measured at OD 450 nm. . 30 antibody clones binding to human ROR1 or mouse ROR1 were selected through ELISA, and the CDR sequences of each antibody are shown in Table 5, and the amino acid sequences of the heavy and light chain variable regions are shown in Table 6.
- ELISA was performed to analyze the domains using scFvs of the 30 selected antibody clones described above.
- An expression vector capable of expressing the antigen domain for the binding domain analysis was constructed, and the protein was expressed and purified.
- residues corresponding to amino acids 1 to 542 or 165 to 395 of the ROR1 amino acid sequence indicated by UniProt ID: Q01973 were used.
- a gene block encoding the extracellular domain of ROR1 was constructed. The 3' end of the gene was conjugated with a His tag. The vector was secured by introducing the gene into the pcDNA3.3 vector. Proteins were expressed and purified using transient transfection.
- Proteins were purified from the cell culture supernatant after culturing for 5 days at 8% CO 2 , 37°C, 130 rpm.
- the culture medium was passed through a column (GE healthcare, 17-5438-01, MabSelectTM SuRe) to allow the expressed antibody to bind to the column.
- IgG Elution Buffer Thermo Scientific, 21028, PierceTM IgG Elution Buffer, pH 2.0
- the eluted antibody fraction was filtered through an Amicon Ultra 30kDa tube (Merck Millipore, UFC903024, Amicon® Ultra-15 Centrifugal Filter Unit). Concentration was performed by exchanging the buffer with PBS (pH 7.4) using ).
- the purified domain was quantified using absorbance and extinction coefficient at a wavelength of 280 nm.
- each scFv was treated and reacted for 2 hours, and washed 4 times using PBST and distilled water.
- an HRP-conjugated anti-HA antibody (Roche, 12013819001, Anti-HA-Peroxidase, High Affinity) that can bind to the HA tag was used to bind at room temperature for 1 hour, and then incubated for 6 minutes using PBST and distilled water. Washed twice.
- Example 5 Mammalian cell expression and purification of anti-ROR1 antibody
- Cloning and production were performed to produce each clone obtained in the examples as a complete immunoglobulin (IgG) monoclonal antibody.
- IgG immunoglobulin
- To construct a heavy chain expression vector DNA encoding the heavy chain including the heavy chain variable region and constant region were cloned into the pOptivec vector, respectively. Additionally, in order to construct a vector expressing the light chain, DNA encoding the light chain including the light chain variable region and light chain constant region was cloned into the pcDNA3.3 vector.
- Proteins were expressed and purified using the light chain and heavy chain expression vectors using transient transfection.
- Expi293F suspension cells Gibco, A14527, Expi293FTM Cells
- Expi293 Expression medium Gibco, A1435101, Expi293TM Expression Medium
- Opti-MEMI Gabco, 31985070, Opti-MEMTM I Reduced Serum Medium
- Transfection was performed with a mixture of ExpiFectamine293 (Gibco, 100014995, ExpiFectamineTM293).
- Proteins were purified from the cell culture supernatant after culturing for 5 days at 8% CO 2 , 37°C, 130 rpm.
- the culture medium was passed through a column (GE healthcare, 17-5438-01, MabSelectTM SuRe) to allow the expressed antibody to bind to the column.
- IgG Elution Buffer Thermo Scientific, 21028, PierceTM IgG Elution Buffer, pH 2.0
- the eluted antibody fraction was filtered through an Amicon Ultra 30kDa tube (Merck Millipore, UFC903024, Amicon® Ultra-15 Centrifugal Filter Unit). Concentration was performed by exchanging the buffer with PBS (pH 7.4) using ).
- Purified anti-ROR1 antibody was quantified using absorbance and extinction coefficient at a wavelength of 280 nm.
- Antibody optimization was performed to remove unwanted PTM sites of the antibody obtained in the above example. Optimization was performed based on the P015042v1 antibody sequence, which showed excellent efficacy in the in vitro experiment results. Among the antibody sequences, we found sequences that are likely to cause deamidation and isomerization under stressed conditions during and after production due to unwanted PTMs: HC 55G, LC S51, and LC G95A. According to what is known from existing papers, substituting N or D among sequences at risk of deamidation and isomerzation significantly damages the affinity of the antibody (Patel, C. N., Bauer, S. P., Davies, J., Durbin, J. D., Shiyanova , T. L., Zhang, K., & Tang, J. https://doi.org/10.1016/s0022-3549(15)00185-9). Therefore, optimization was performed by substituting the sequence following N or D in the sequence.
- the affinity of the antibody was measured by substituting each of the above-mentioned sequences through rational design.
- HC G55 was replaced with V (P015042v1-1) and K (P015042v1-2).
- LC S51 was replaced with A (P015042v1-3) and K (P015042v1-4), and LC G95 was replaced with A (P015042v1-5).
- P015042v1-1 to P015042v1-5) it was determined that it was best to replace the HC G55 sequence with K and LC S51 and LC G95 with K and A, respectively. Therefore, P015042v1-6, which has all three sequence modifications, was created.
- Human ROR1 and mouse ROR1 proteins were each coated on a 96-well plate at a concentration of 2 ⁇ g/mL for 16 hours at 4°C, and blocked using 3% skim milk. Afterwards, each antibody was treated at concentrations of 300nM, 60nM, 12nM, 2.4nM, 0.48nM, 0.096nM, and 0.0192nM and reacted for 1 hour. After washing with PBST and distilled water, the antibody was conjugated with goat-derived HRP-conjugated anti-human antibody (Invitrogen, 31482, Goat anti-Human IgG F(ab') 2 Secondary Antibody, HRP) for 1 hour at room temperature. , and washed again using PBST and distilled water.
- HRP goat-derived HRP-conjugated anti-human antibody
- SPR surface plasmon resonance
- human ROR1 or mouse ROR1 was diluted in 10 mM sodium acetate, pH 4.5, and immobilized on a CM5 sensor chip (GE healthcare) at 300 response units (RU).
- the activated portion remaining on the surface of the sensor chip was deactivated by adding 1 M ethanolamine-HCl (pH 8.5).
- Our anti-ROR1 antibody was injected into the antibody protein immobilized on the CM5 sensor chip at concentrations of 300, 150, 75, 37.5, 18.75, 9.375, and 4.6875 nM for 180 seconds (Ka), and then at the same flow rate for 180 seconds.
- Kd the KD combined sensorgram was investigated.
- the anti-ROR1 antibody showed a sensorgram specifically binding to human ROR1 and mouse ROR1, and the final KD value through Ka and Kd values was (1:1 Langmuir 1:1 kinetics) are shown in Table 9 and Table 10.
- ELISA was performed to analyze the binding domain using the IgG antibody of the selected clone.
- each antibody was treated at concentrations of 300nM, 60nM, 12nM, 2.4nM, 0.48nM, 0.096nM, and 0.0192nM and reacted for 1 hour.
- the antibody was bound at room temperature for 1 hour using an anti-human antibody conjugated with goat-derived HRP (Invitrogen, 31482, Goat anti-Human IgG F(ab')2 Secondary Antibody, HRP). , and washed again using PBST and distilled water.
- T-47D, Jeko-1 (abnormal cell line), AMB-BT-0024T, AMB-BT-0016T, AMB-BT-0013T, AMB-LC-0002T, AMB-LC-0003T, KUC-OC21-025T (abnormal patient derived cells) were distributed in duplicate to 96-well plates at 2 x 10 5 cells each. Dispense 100 nM of Mouse IgG1-PE isotype (Invitrogen, 12-4714-82) and ROR1-2A2-PE (Biolegend, 357804) per well.
- Jeko-1 a human lymphoma cell line
- PXC patient-derived cells
- AMB-LC-0003T a lung cancer-derived cell
- anti-ROR1 antibodies Before anti-ROR1 antibodies are used for treatment, it is very important to first confirm whether they bind to the antigen expressed on the cell surface.
- the cell-binding ability of the anti-ROR1 antibodies developed by the present inventors was measured in Jeko-1 cell line and AMB-LC-0003T patient-derived cells, which were confirmed to have high ROR1 expression, using FACS. Each cell was dispensed into a 96-well plate at 1 x 10 5 cells/100 ⁇ l FACS buffer per well.
- PE-labeled Goat anti-human IgG Fc PE (Thermofisher; 12-4998-82) was diluted at a ratio of 1:100 in FACS buffer solution as a secondary antibody, and 100 ⁇ l was dispensed into each well. It was reacted again at 4°C for 30 minutes and washed twice. Finally, 100 ⁇ l FACS buffer solution was dispensed into each well, mixed well with a pipette, and then flow cytometry was performed using a NovoCyte Flow Cytometer (Agilent). Analyzed using GraphPad Prism 9.3.1, log(agonist) vs. The EC 50 value was derived using a response - Variable slope nonlinear graph model.
- AMB-LC-0003T patient-derived cells which had the highest level of ROR1 expression, showed a higher MFI (Mean Fluorescence Intensity) than the Jeko-1 cell line.
- Antibodies that showed sub-nanomolar EC50 values in both cell types include P015042 and P015042v1 and P015042v1-6, which had additionally modified sequences, and P015044 also showed nanomolar EC50 values.
- Other anti-ROR1 clones, P015004 and P015043 also showed good cell binding ability, with EC50s of ⁇ 10 nM ( Figures 5 and 6).
- the anti-ROR1 antibody In order to develop an antibody-drug conjugate, the anti-ROR1 antibody must not only bind to the ROR1 antigen in the cell but also be internalized into the cell so that the drug of the conjugate can penetrate into the cell and cause a reaction. To analyze this, internalization was confirmed by detecting ROR1 antigen remaining on the cell surface at various time points. Jeko- 1 cells were distributed in duplicate at 1 The ROR1 receptor that was not internalized and remained on the cell surface was identified. Cells were treated with 1 nM of each antibody and then incubated at 4°C for 30 minutes. Washed twice by centrifugation at 1100g for 2 minutes.
- P015042v1-6 engineered by improving the biological and physical properties of the P015042 antibody, showed similar levels to Merck's UC-961 antibody, which had the best cellular internalization (Figure 7).
- the antibody-drug conjugate represented by formula (1) in which the antibody (Y) and the drug-linker (LP) structure are connected via a thioether, can be produced, for example, by the following method.
- An antibody-drug conjugate can be produced through the reaction between the maleimidyl group of LP and the sulfhydryl group of X.
- Antibody (X) having a sulfhydryl group can be obtained according to the method described below.
- the antibody can be reacted with a reducing agent such as tris(2-carboxyethyl)phosphine hydrochloride (TCEP) to reduce the disulfide bond in the hinge portion of the antibody to form a sulfhydryl group.
- TCEP tris(2-carboxyethyl)phosphine hydrochloride
- TCEP disulfide sugar reducing agent inside the antibody
- EDTA Ethylenediaminetetraacetic acid
- Antibodies (X) with partially or fully reduced sulfhydryl groups can be produced.
- the disulfide reduction reaction in the antibody described above was carried out at 37°C for 2 hours.
- the buffer used in this example is a phosphate buffer solution (pH 7.4) containing saline, which was also used during antibody production.
- the disulfide reduction reaction in the antibody described above was carried out at 37°C for 2 hours.
- Antibody (X) having a sulfhydryl group from which impurities were removed through buffer exchange was recovered in an Amicon Ultra (30kDa, Millipore Co.) container and reacted with 5 to 15 molar equivalents of 10mM drug-linker (LP) at room temperature for 2 hours. I order it. Since the drug-linker (LP) can be modified by light, this reaction was carried out in the dark. To increase the solubility of the compound, the drug-linker (LP) was dissolved in dimethylacetamide (DMA), a representative organic solvent. About 10 to 20% v/v of DMA was added to a buffer containing an antibody (X) having a sulfhydryl group.
- DMA dimethylacetamide
- the antibody-drug conjugation reaction can be terminated by inactivating the reactivity of the unreacted drug-linker (LP) with a thiol-containing reagent.
- the thiol-containing reagent used in this example is N-acetyl-L-cysteine (NAC). Specifically, the reaction was terminated by adding 5 molar equivalents of NAC to the antibody-drug conjugation reaction solution and storing it at room temperature for 30 minutes.
- the antibody-drug reaction solution was added to an Amicon Ultra (30 kDa, Millipore Co.) container and centrifuged (10 to 20 at 3950 G) using a centrifuge (Eppendorf centrifuge 5810 R). centrifuged for 10 minutes) and the buffer was exchanged with phosphate buffer solution (pH 7.4) containing saline. This process was repeated a total of three times. Finally, the antibody-drug conjugate was recovered from the filtration membrane in an Amicon Ultra (30 kDa, Millipore Co.) container.
- Antibody concentration in the antibody-drug conjugate was measured using a spectrophotometer (Thermofisher Scientific NanoDrop 8000).
- the purity of the antibody-drug conjugate was determined by size exclusion high-performance liquid chromatography (SEC-HPLC) analysis employing the method described below. Pretreatment of antibody-drug conjugate samples is prepared at a concentration of 0.5 mg/ml and a total volume of 25 ⁇ L. SEC-HPLC analysis is performed according to the following conditions.
- the purity of the antibody-drug conjugate was measured by comparing and contrasting the retention time of each peak appearing in the antibody-drug conjugate chromatogram with the retention time for each peak of the size marker (Gel filtration standard, Bio-Rad, 1511901).
- size exclusion chromatography larger molecules are detected first, so based on the antibody peak (150 kDa), the peak that appears first is a polymer aggregate that can be generated due to the hydrophobicity of the drug, and the peak that appears later is the drug that was conjugated and then separated. was analyzed.
- the purity of the antibody-drug conjugate itself was calculated by converting the area of the peak corresponding to 150 kDa in the entire chromatogram into a percentage.
- Example 16 Analysis of the average number of drug molecules per antibody molecule of anti-ROR1 antibody-drug conjugate (DAR analysis)
- the average number of drug molecules per antibody molecule (Drug-to-Antibody Ratio, DAR) of the antibody-drug conjugate was measured through hydrophobic interaction high-performance liquid chromatography (HIC-HPLC) analysis using the method described below.
- HIC-HPLC hydrophobic interaction high-performance liquid chromatography
- the antibody-drug conjugate Compared to the same antibody without drug conjugation, the antibody-drug conjugate exhibits higher hydrophobicity in proportion to the number of conjugated drug molecules and therefore has a longer retention time.
- the peaks that appear sequentially relative to the retention time of the drug-unconjugated antibody (DAR 0) were designated in the order of DAR 2, DAR 4, DAR 6, and DAR 8 as described above.
- Affinity analysis of antibody-drug conjugates evaluates equivalence to the parent antibody and determines the potential affinity that may arise from manufacturing processes such as disulfide bond reduction and drug-linker conjugation to produce antibodies with sulfhydryl groups. This is to determine whether or not there is damage.
- the analysis was conducted using an enzyme-linked immunosorbent assay (ELISA) described below.
- the antigen-binding ability of the antibody-drug conjugate was 80% or more compared to the monoclonal antibody, the antigen-binding ability of the antibody-drug conjugate was judged to be similar.
- Figure 9 shows the purity analysis results of the antibody-drug conjugates used in the examples of the present invention
- Figure 10 shows the analysis results of the average number of drug molecules per antibody molecule of the antibody-drug conjugates used in the examples of the present invention
- Figure 11 shows the results of the analysis of the average number of drug molecules per antibody molecule.
- the ELISA analysis results for ROR1 binding of the antibody-drug conjugate used in the examples of the present invention are shown.
- Example 18 In vitro cytotoxicity evaluation of anti-ROR1 antibody-drug conjugates
- AMB-LC-0003T which is known to be lung cancer patient-derived cells with high ROR1 expression
- AMB-LC-0002T which has very low ROR1 expression.
- U bottom 384-well transparent plate (S-bio, #MS-9384UZ), AMB-LC-0003T and AMB-LC-0002T cells derived from lung cancer patients were placed at 500 cells per well with 40 ⁇ l M10018 (Aimedbio). ) Triplely busy with the media. After centrifugation at 250g for 2 minutes, reaction was performed at 37°C and 5% CO 2 for 24 hours. After the reaction, each antibody-drug conjugate was diluted three-fold from 500 nM to 0.314 pM. The plate was reacted again at 37°C and 5% CO 2 for 6 days.
- the P015042-vc-PAB-MMAE antibody-drug conjugate described above shows a superior IC 50 (2.30 nM) value in AMB-LC-0003T with high ROR1 expression, and in AMB-LC-0002T, a patient-derived cell with low ROR1 expression. It was confirmed that only ROR1-specific effects were observed, with an IC 50 value of over 100 nM.
- the antibody-drug conjugate of US Patent US 10,335,496 B2 it showed about 8 times the relative potency, allowing us to expect ROR1-specific anticancer efficacy as an antibody-drug conjugate (Figure 13 ).
- the anti-ROR1 antibody or antigen-binding fragment thereof according to the present invention exhibits superior binding ability to ROR1 than existing anti-ROR1 antibodies, and can be usefully used for the prevention or treatment of a desired tumor or cancer.
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Abstract
Description
Claims (24)
- 다음을 포함하는 ROR 1(Receptor Tyrosine Kinase Like Orphan Receptor 1)에 특이적으로 결합하는 항체 또는 이의 항원 결합 단편:서열번호 1 내지 서열번호 16으로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 중쇄 CDR1,서열번호 17 내지 서열번호 41, 서열번호 184 및 서열번호 185로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 중쇄 CDR2,서열번호 42 내지 서열번호 65로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 중쇄 CDR3,서열번호 66 내지 서열번호 86으로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 경쇄 CDR1,서열번호 87 내지 서열번호 102, 서열번호 186 및 서열번호 187로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 경쇄 CDR2 및서열번호 103 내지 서열번호 121로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 경쇄 CDR3.
- 제1항에 있어서, 서열번호 122 내지 서열번호 152 및 서열번호 188 내지 서열번호 193으로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 중쇄 가변영역을 포함하는, 항체 또는 이의 항원 결합 단편.
- 제1항에 있어서, 서열번호 153 내지 서열번호 183 및 서열번호 194 내지 서열번호 199로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 경쇄 가변영역을 포함하는, 항체 또는 이의 항원 결합 단편.
- 제1항에 있어서, 단쇄 Fvs(scFv), 단쇄 항체, Fab, F(ab'), 다이설파이드-결합 Fvs(sdFv)을 포함하는, 항체 또는 이의 항원 결합 단편.
- 제4항에 있어서, 상기 scFv는 서열번호 122 내지 서열번호 152 및 서열번호 188 내지 서열번호 193으로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 중쇄 가변영역과 서열번호 153 내지 서열번호 183 및 서열번호 194 내지 서열번호 199로 구성된 군에서 선택된 하나 이상의 아미노산 서열을 포함하는 경쇄 가변영역이 링커를 통해 연결된 것을 특징으로 하는, 항체 또는 이의 항원 결합 단편.
- 제5항에 있어서, 상기 링커는 (GnS)m (n, m은 각각 1 내지 10)을 포함하는, 항체 또는 이의 항원 결합 단편.
- 제1항 내지 제6항 중 어느 한 항에 따른 항체 또는 이의 항원 결합 단편을 코딩하는 핵산.
- 제7항의 핵산을 포함하는 재조합 발현벡터.
- 제8항의 재조합 발현벡터로 형질감염된 숙주세포.
- 제9항에 있어서, COS-7, BHK, CHO, CHOK1, DXB-11, DG-44, CHO/-DHFR, CV1, COS-7, HEK293, BHK, TM4, VERO, HELA, MDCK, BRL 3A, W138, Hep G2, SK-Hep, MMT, TRI, MRC 5, FS4, 3T3, RIN, A549, PC12, K562, PER.C6, SP2/0, NS-0, U20S, 또는 HT1080인 숙주세포.
- 제9항의 숙주세포를 배양하여 항체를 생성하는 단계; 및 생성된 항체를 분리 및 정제하는 단계를 포함하는, ROR1에 특이적으로 결합하는 항체 또는 이의 항원 결합 단편의 제조방법.
- 제1항 내지 제6항 중 어느 한 항에 따른 항체 또는 이의 항원 결합 단편을 포함하는 이중특이적 또는 다중특이적 항체.
- 제1항 내지 제6항 중 어느 한 항에 따른 항체의 scFv 및 면역세포 활성화 항원에 결합하는 항체의 scFv를 하나 이상 포함하는 제2결합 도메인으로 구성된 scFv를 포함하는, 면역세포 인게이징(immune cell engage) 이중특이적 또는 다중특이적 항체.
- 제1항 내지 제6항 중 어느 한 항에 따른 항체 또는 이의 항원 결합 단편이 약물에 결합된 항체-약물 접합체(ADC).
- 제14항에 있어서, 상기 약물은 마이탄시노이드, 오리스타틴(MMAE, MMAF 포함), 아미노프테린, 악티노마이신, 블레오마이신, 탈리소마이신, 캄프토쎄신, N8-아세틸 스퍼미딘, 1-(2 클로로에틸)-1,2-다이메틸 술포닐 하이드라자이드, 에스퍼라마이신, 에토포사이드, 6-머캅토퓨린, 돌라스타틴, 트리코테센, 칼리케아미신, 탁솔(taxol), 탁산, 파클리탁셀(paclitaxel), 도세탁셀(docetaxel), 메토트렉세이트, 빈크리스틴, 빈블라스틴, 독소루비신, 멜팔란, 미토마이신 A, 미토마이신 C, 클로람부실, 듀오카마이신, L-아스파라기나제(L-asparaginase), 머캡토퓨린(mercaptopurine), 티오구아닌(thioguanine), 하이드록시우레아(hydroxyurea), 시타라빈(cytarabine), 사이클로포스파미드(cyclophosphamide), 이포스파미드(ifosfamide), 니트로소우레아(nitrosourea), 시스플라틴(cisplatin), 카보플라틴(carboplatin), 미토마이신(mitomycin), 다카바진(dacarbazine), 프로카바진(procarbazine), 토포테칸(topotecan), 질소 머스터드(nitrogen mustard), 사이톡산(cytoxan), 에토포시드(etoposide), 5-플루오로우라실(5-fluorouracil), CNU(bischloroethylnitrosourea), 이리노테칸(irinotecan), 캄포토테신(camptothecin), 블레오마이신(bleomycin), 이다루비신(idarubicin), 다우노루비신(daunorubicin), 닥티노마이신(dactinomycin), 플리카마이신(plicamycin), 미톡산트론(mitoxantrone), 아스파라기나제(asparaginase), 비노렐빈(vinorelbine), 클로로람부실(chlorambucil), 멜파란(melphalan), 카르무스틴(carmustine), 로무스틴(lomustine), 부설판(busuLfan), 트레오설판(treosulfan), 데카바진(decarbazine), 에토포시드(etoposide), 테니포시드(teniposide), 토포테칸(topotecan), 9-아미노캠프토테신(9-aminocamptothecin), 크리스나톨(crisnatol), 미토마이신 C(mitomycin C), 트리메트렉세이트(trimetrexate), 마이코페놀산(mycophenolic acid), 티아조퓨린(tiazofurin), 리바비린(ribavirin), EICAR(5-ethynyl-1-beta-Dribofuranosylimidazole-4-carboxamide), 하이드록시우레아(hydroxyurea), 데프록사민(deferoxamine), 플룩수리딘(floxuridine), 독시플루리딘(doxifluridine), 랄티트렉세드(raltitrexed), 시타라빈(cytarabine(ara C)), 시토신 아라비노시드(cytosine arabinoside), 플루다라빈(fludarabine), 타목시펜(tamoxifen), 라록시펜(raloxifene), 메게스트롤(megestrol), 고세렐린(goserelin), 류프롤리드 아세테이트(leuprolide acetate), 플루타미드(flutamide), 바이칼루타마이드(bicalutamide), EB1089, CB1093, KH1060, 베르테포르핀(verteporfin), 프탈로시아닌(phthalocyanine), 광감작제 Pe4(photosensitizer Pe4), 데메톡시-하이포크레린 A(demethoxy-hypocrellin A), 인터페론-α(Interferon-α), 인터페론-γ(Interferon-γ), 종양 괴사 인자(tumor necrosis factor), 겜사이타빈(Gemcitabine), 벨케이드(velcade), 레발미드(revamid), 탈라미드(thalamid), 로바스타틴(lovastatin), 1-메틸-4-페닐피리디늄 이온(1-methyl-4-phenylpyridiniumion), 스타우로스포린(staurosporine), 악티노마이신 D(actinomycin D), 닥티노마이신(dactinomycin), 블레오마이신 A2(bleomycin A2), 블레오마이신 B2(bleomycinB2), 페플로마이신(peplomycin), 에피루비신(epirubicin), 피라루비신(pirarubicin), 조루비신(zorubicin), 마이토산트론(mitoxantrone), 베라파밀(verapamil) 및 탑시가르긴(thapsigargin), 핵산 분해 효소 및 세균이나 동식물 유래의 독소로 구성된 군에서 선택된 하나 이상인 것을 특징으로 하는 항체-약물 접합체.
- 제14항에 있어서, 상기 항체 또는 이의 항원 결합 단편은 약물과 링커를 통하여 결합되는 것을 특징으로 하는 항체-약물 접합체.
- 제16항에 있어서, 상기 링커는 절단성 링커 또는 비절단성 링커인 것을 특징으로 하는 항체-약물 접합체.
- 제17항에 있어서, 상기 절단성 링커는 산성 불안정 링커(acid-labile linker), 이황화 링커, 펩타이드 링커, 또는 베타-글루쿠로나이드(beta-glucuronide) 링커이고, 또는 상기 비절단성 링커는 티오에테르기 또는 말레이미도카프로일기를 포함하는 것을 특징으로 하는 항체-약물 접합체.
- 제16항에 있어서, 상기 링커는 항체의 이황화 결합 환원시 노출되는 시스테인 잔기 또는 항체에 결합된 태그에 존재하는 시스테인 잔기에 결합되는 것을 특징으로 하는 항체-약물 접합체.
- 항원 결합 부위를 포함하는 세포외 도메인, 트랜스멤브레인 도메인 및 세포내 신호전달 도메인을 포함하는 키메라 항원 수용체(CAR)로, 상기 세포외 도메인의 항원 결합 부위는 제1항 내지 제6항 중 어느 한 항에 따른 항체의 scFv인 것을 특징으로 하는 키메라 항원 수용체.
- 제20항에 따른 키메라 항원 수용체(CAR)가 도입되어 있는 면역세포.
- 제21항에 있어서, T 세포, NK 세포, 사이토카인 유도 살해세포(Cytokine Induced Killer cell, CIK), 활성화 세포독성 T 림프구(Cytotoxic T Lymphocyte, CTL), 마크로파지, 종양 조직 내 침투 T 세포(Tumor-Infiltrating Lymphocytes, TIL), 수지상세포로 구성된 군에서 선택된 하나 이상인 면역세포.
- 제1항 내지 제6항 중 어느 한 항에 따른 항체 또는 이의 항원 결합 단편, 상기 항체 또는 이의 항원 결합 단편을 포함하는 이중 또는 다중특이적 항체, 상기 항체 또는 이의 항원 결합 단편을 포함하는 항체-약물 접합체, 상기 항체 또는 이의 항원 결합 단편을 포함하는 키메라 항원 수용체 또는 상기 키메라 항원 수용체를 포함하는 면역세포를 포함하는 암 예방 또는 치료용 조성물.
- 제1항 내지 제6항 중 어느 한 항에 따른 항체 또는 이의 항원 결합 단편, 상기 항체 또는 이의 항원 결합 단편을 포함하는 이중 또는 다중특이적 항체, 상기 항체 또는 이의 항원 결합 단편을 포함하는 항체-약물 접합체, 상기 항체 또는 이의 항원 결합 단편을 포함하는 키메라 항원 수용체 또는 상기 키메라 항원 수용체를 포함하는 면역세포를 투여하는 단계를 포함하는 암 예방 또는 치료방법.
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Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001077342A1 (en) | 2000-04-11 | 2001-10-18 | Genentech, Inc. | Multivalent antibodies and uses therefor |
US6319494B1 (en) | 1990-12-14 | 2001-11-20 | Cell Genesys, Inc. | Chimeric chains for receptor-associated signal transduction pathways |
WO2004010957A2 (en) | 2002-07-31 | 2004-02-05 | Seattle Genetics, Inc. | Drug conjugates and their use for treating cancer, an autoimmune disease or an infectious disease |
US7446190B2 (en) | 2002-05-28 | 2008-11-04 | Sloan-Kettering Institute For Cancer Research | Nucleic acids encoding chimeric T cell receptors |
WO2009080253A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
WO2009080254A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
WO2009080252A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
WO2009080251A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
US7741465B1 (en) | 1992-03-18 | 2010-06-22 | Zelig Eshhar | Chimeric receptor genes and cells transformed therewith |
WO2010112193A1 (en) | 2009-04-02 | 2010-10-07 | Roche Glycart Ag | Multispecific antibodies comprising full length antibodies and single chain fab fragments |
WO2010115589A1 (en) | 2009-04-07 | 2010-10-14 | Roche Glycart Ag | Trivalent, bispecific antibodies |
WO2010136172A1 (en) | 2009-05-27 | 2010-12-02 | F. Hoffmann-La Roche Ag | Tri- or tetraspecific antibodies |
WO2010145792A1 (en) | 2009-06-16 | 2010-12-23 | F. Hoffmann-La Roche Ag | Bispecific antigen binding proteins |
WO2010145793A1 (en) | 2009-06-18 | 2010-12-23 | F. Hoffmann-La Roche Ag | Bispecific, tetravalent antigen binding proteins |
WO2011117330A1 (en) | 2010-03-26 | 2011-09-29 | Roche Glycart Ag | Bispecific antibodies |
US8822647B2 (en) | 2008-08-26 | 2014-09-02 | City Of Hope | Method and compositions using a chimeric antigen receptor for enhanced anti-tumor effector functioning of T cells |
WO2015182984A1 (ko) | 2014-05-28 | 2015-12-03 | 주식회사 레고켐 바이오사이언스 | 자가-희생 기를 포함하는 화합물 |
US9212229B2 (en) | 2010-09-08 | 2015-12-15 | Chemotherapeutisches Forschungsinstitut Georg-Speyer-Haus | Chimeric antigen receptors with an optimized hinge region |
WO2016172726A1 (en) | 2015-04-24 | 2016-10-27 | The Regents Of The University Of California | Modulators of ror1-ror2 binding |
WO2017136607A1 (en) * | 2016-02-02 | 2017-08-10 | Fred Hutchinson Cancer Research Center | Anti-ror1 antibodies and uses thereof |
US20170368169A1 (en) | 2016-03-21 | 2017-12-28 | Elstar Therapeutics, Inc. | Multispecific and multifunctional molecules and uses thereof |
KR20180069067A (ko) * | 2015-10-30 | 2018-06-22 | 엔비이-테라퓨틱스 아게 | 안티-ror1 항체 |
KR20180101554A (ko) * | 2016-01-20 | 2018-09-12 | 더 스크립스 리서치 인스티튜트 | Ror1 항체 조성물 및 관련 방법 |
US10316102B2 (en) | 2014-10-09 | 2019-06-11 | Yamaguchi University | Car expression vector and car-expressing T cells |
US10336810B2 (en) | 2015-02-12 | 2019-07-02 | University Health Network | Chimeric antigen receptors, encoding nucleic acids and methods of use thereof |
US10335496B2 (en) | 2017-06-23 | 2019-07-02 | VelosBio Inc. | ROR1 antibody immunoconjugates |
KR20200143470A (ko) * | 2018-04-18 | 2020-12-23 | 엑셀리시스, 인코포레이티드 | 항-ror 항체 구조체 |
WO2021159029A1 (en) * | 2020-02-07 | 2021-08-12 | VelosBio Inc. | Anti-ror1 antibodies and compositions |
WO2022129622A1 (en) * | 2020-12-18 | 2022-06-23 | Almac Discovery Limited | Ror1-specific variant antigen binding molecules |
-
2023
- 2023-07-26 WO PCT/KR2023/010847 patent/WO2024025343A1/ko active Application Filing
- 2023-07-26 IL IL318546A patent/IL318546A/en unknown
- 2023-07-26 KR KR1020230097299A patent/KR20240016216A/ko active Pending
- 2023-07-26 AU AU2023313641A patent/AU2023313641A1/en active Pending
- 2023-07-26 CN CN202380053692.3A patent/CN119923409A/zh active Pending
- 2023-07-26 EP EP23847000.9A patent/EP4563597A1/en active Pending
Patent Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6319494B1 (en) | 1990-12-14 | 2001-11-20 | Cell Genesys, Inc. | Chimeric chains for receptor-associated signal transduction pathways |
US7741465B1 (en) | 1992-03-18 | 2010-06-22 | Zelig Eshhar | Chimeric receptor genes and cells transformed therewith |
WO2001077342A1 (en) | 2000-04-11 | 2001-10-18 | Genentech, Inc. | Multivalent antibodies and uses therefor |
US7446190B2 (en) | 2002-05-28 | 2008-11-04 | Sloan-Kettering Institute For Cancer Research | Nucleic acids encoding chimeric T cell receptors |
WO2004010957A2 (en) | 2002-07-31 | 2004-02-05 | Seattle Genetics, Inc. | Drug conjugates and their use for treating cancer, an autoimmune disease or an infectious disease |
WO2009080252A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
WO2009080251A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
WO2009080254A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
WO2009080253A1 (en) | 2007-12-21 | 2009-07-02 | F. Hoffmann-La Roche Ag | Bivalent, bispecific antibodies |
US8822647B2 (en) | 2008-08-26 | 2014-09-02 | City Of Hope | Method and compositions using a chimeric antigen receptor for enhanced anti-tumor effector functioning of T cells |
WO2010112193A1 (en) | 2009-04-02 | 2010-10-07 | Roche Glycart Ag | Multispecific antibodies comprising full length antibodies and single chain fab fragments |
WO2010115589A1 (en) | 2009-04-07 | 2010-10-14 | Roche Glycart Ag | Trivalent, bispecific antibodies |
WO2010136172A1 (en) | 2009-05-27 | 2010-12-02 | F. Hoffmann-La Roche Ag | Tri- or tetraspecific antibodies |
WO2010145792A1 (en) | 2009-06-16 | 2010-12-23 | F. Hoffmann-La Roche Ag | Bispecific antigen binding proteins |
WO2010145793A1 (en) | 2009-06-18 | 2010-12-23 | F. Hoffmann-La Roche Ag | Bispecific, tetravalent antigen binding proteins |
WO2011117330A1 (en) | 2010-03-26 | 2011-09-29 | Roche Glycart Ag | Bispecific antibodies |
US9212229B2 (en) | 2010-09-08 | 2015-12-15 | Chemotherapeutisches Forschungsinstitut Georg-Speyer-Haus | Chimeric antigen receptors with an optimized hinge region |
WO2015182984A1 (ko) | 2014-05-28 | 2015-12-03 | 주식회사 레고켐 바이오사이언스 | 자가-희생 기를 포함하는 화합물 |
US10316102B2 (en) | 2014-10-09 | 2019-06-11 | Yamaguchi University | Car expression vector and car-expressing T cells |
US10336810B2 (en) | 2015-02-12 | 2019-07-02 | University Health Network | Chimeric antigen receptors, encoding nucleic acids and methods of use thereof |
WO2016172726A1 (en) | 2015-04-24 | 2016-10-27 | The Regents Of The University Of California | Modulators of ror1-ror2 binding |
KR20180069067A (ko) * | 2015-10-30 | 2018-06-22 | 엔비이-테라퓨틱스 아게 | 안티-ror1 항체 |
KR20180101554A (ko) * | 2016-01-20 | 2018-09-12 | 더 스크립스 리서치 인스티튜트 | Ror1 항체 조성물 및 관련 방법 |
WO2017136607A1 (en) * | 2016-02-02 | 2017-08-10 | Fred Hutchinson Cancer Research Center | Anti-ror1 antibodies and uses thereof |
US20170368169A1 (en) | 2016-03-21 | 2017-12-28 | Elstar Therapeutics, Inc. | Multispecific and multifunctional molecules and uses thereof |
US10335496B2 (en) | 2017-06-23 | 2019-07-02 | VelosBio Inc. | ROR1 antibody immunoconjugates |
KR20200143470A (ko) * | 2018-04-18 | 2020-12-23 | 엑셀리시스, 인코포레이티드 | 항-ror 항체 구조체 |
WO2021159029A1 (en) * | 2020-02-07 | 2021-08-12 | VelosBio Inc. | Anti-ror1 antibodies and compositions |
WO2022129622A1 (en) * | 2020-12-18 | 2022-06-23 | Almac Discovery Limited | Ror1-specific variant antigen binding molecules |
Non-Patent Citations (4)
Title |
---|
"UniProt", Database accession no. Q01973 |
CHOI ET AL., CELL STEM CELL, vol. 22, 2018, pages 951 - 959 |
KLEIN ET AL., J. EXP. MED, vol. 194, 2001, pages 1625 |
PATEL, C. N.BAUER, S. P.DAVIES, J.DURBIN, J. D.SHIYANOVA, T. L.ZHANG, K.TANG, J. X.: "N+1 engineering of an aspartate isomerization hotspot in the complementarity-determining region of a monoclonal antibody.", JOURNAL OF PHARMACEUTICAL SCIENCES, vol. 105, no. 2, 2016, pages 512 - 518, XP055623628, Retrieved from the Internet <URL:https://doi.org/10.1016/s0022-3549(15)00185-9> DOI: 10.1016/S0022-3549(15)00185-9 |
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