WO2014040891A2 - Verfahren zur diagnose eines molekularen phänotyps eines an einer mit chronischen entzündungen einhergehenden erkrankung leidenden patienten - Google Patents
Verfahren zur diagnose eines molekularen phänotyps eines an einer mit chronischen entzündungen einhergehenden erkrankung leidenden patienten Download PDFInfo
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Definitions
- the invention relates to a method and a kit for diagnosing a molecular phenotype of a patient suffering from a disease associated with chronic inflammation, and to a medicament for treating such a patient.
- Chronic inflammations represent an increasing medical problem area of high socioeconomic importance. These include, in particular, the following disease groups: autoimmune diseases and diseases of the rheumatic type (manifestations of, inter alia, skin, lung, kidney, vascular system, nervous system, connective tissue, musculoskeletal system, endocrine system), allergic immediate type reactions and Asthma, chronic obstructive pulmonary disease (COPD), atherosclerosis, psoriasis and contact dermatitis, and chronic organ rejection and bone marrow transplant rejection. Many of these diseases have been showing an increasing prevalence in the past few decades, not only in the industrialized nations, but also worldwide. Over 20% of the population in Europe, North America, Japan and Australia suffer from allergic diseases and asthma.
- autoimmune diseases and diseases of the rheumatic type manifestations of, inter alia, skin, lung, kidney, vascular system, nervous system, connective tissue, musculoskeletal system, endocrine system
- COPD chronic obstructive pulmonary disease
- COPD
- Chronic obstructive pulmonary disease is currently the fifth most common Cause of death worldwide and will be the third leading cause of death by 2020, according to WHO calculations.
- Atherosclerosis with its associated diseases of heart attack, stroke and peripheral arterial disease, occupies a leading position worldwide in morbidity and mortality statistics.
- Psoriasis and contact dermatitis together with atopic dermatitis are the most common chronic skin inflammatory diseases.
- innate and acquired immunity Components of innate and acquired immunity are sustainably involved in initiation, maintenance, and destruction and remodeling processes. Under the influence of innate immunity (important components: antigen-presenting cells with their diverse populations and the complement system) there is activation and differentiation of the cells of the adaptive immune system (important components: T and B lymphocytes). The T cells take over central functions in the further course by differentiating into highly specialized effectors.
- effector mechanisms include in particular the following functions: antibody production, control of the functionality of effector cells of the immune system (such as neutrophil, basophil, eosinophilic granulocytes), feedback on functions of the innate immune system, influence on functionality of non-hematopoietic cells such.
- effector cells of the immune system such as neutrophil, basophil, eosinophilic granulocytes
- feedback on functions of the innate immune system influence on functionality of non-hematopoietic cells
- non-hematopoietic cells such as epithelium, endothelium, connective tissue, bone and cartilage and especially neuronal cells.
- T-cells take over central functions in the course of the disease, an understanding of their specialization is crucial.
- a complex signal transduction cascade is involved in the differentiation of na ⁇ ve CD4 + cells into Th1 and Th2 cells, respectively.
- Th1 cells produce interferon- ⁇ (INFy), interleukin 2 (IL-2) and tumor necrosis factor- ⁇ , whereas Th2 cells secrete IL-4, IL-5, IL-9 and IL-13.
- IFNy interferon- ⁇
- IL-2 interleukin 2
- Th2 cells secrete IL-4, IL-5, IL-9 and IL-13.
- Bacterial and viral infections induce an immune response that is dominated by Th1 cells.
- Th2 cells regulate IgE production against parasites. There is an equilibrium between Th1 and Th2 cells. Disruption of this balance causes disease, an exaggerated Th1 cell response is associated with autoimmune disease, while allergic disease is based on an enhanced Th2 cell response.
- Th1 cytokines in the pathogenesis of autoimmune diseases such. Autoimmune uveitis, experimental allergic encephalomyelitis, type 1 diabetes mellitus, or Crohn's disease, while Th2 cytokines (IL-4, IL-5, IL-13, and IL-9, respectively) are involved in the development of chronic inflammatory airways diseases such as , As respiratory eosinophilia, asthma, mucus hypersecretion and respiratory hyperresponsiveness are involved. The basis of these diseases are pathophysiological changes during the production of characteristic cytokines by antigen-specific Th cells. In the animal model, Th2 cell subpopulations in the lungs and respiratory tract cause the characteristic symptoms of bronchial asthma. Among others, two transcription factors are involved in the development of autoimmune diseases and chronic inflammatory reactions: the Th1-cell-specific transcription factor Tbet and the Th2-cell-specific transcription factor GATA-3.
- the Th1 cell-specific transcription factor Tbet is mainly responsible for the differentiation of na ⁇ ve CD4 + T cells into Th1 cells. Its expression is controlled via the T cell receptor (TCR) signal transduction pathways and via INFy receptor / STAT1. Tbet transactivates the endogenous INFy gene and induces INFy production. The in vivo function of Tbet is confirmed in knockout mice (Tbet - / -). In Tbet deficient mice, the amount of Th2 cytokines is increased.
- Tbet in mucosal T cells in the development of inflammatory bowel disease.
- the transcription factor Tbet specifically induces the development of Th1 cells and controls INFy production in these cells.
- the inhibition of Tbet shifts the balance between Th1 and Th2 cells in favor of Th2 cells.
- Th2 cells play an essential role in the development of allergic diseases, in particular various asthma diseases.
- the required differentiation of ThO cells to Th2 cells is dependent on the transcription factor GATA-3.
- GATA-3 is a member of the GATA family of transcription factors.
- the Th2 cell-specific transcription factor GATA-3 is mainly responsible for the differentiation of naive CD4 + T cells into Th2 cells.
- Th2 cell differentiation is mainly controlled by two signaling pathways, the T cell receptor (TCR) and the IL-4 receptor pathway: signals relayed by the TCR activate both the Th2 cell-specific transcription factors c-Maf and GATA-3 as well the transcription factors NFAT and AP-1.
- TCR T cell receptor
- IL-4 receptor pathway signals relayed by the TCR activate both the Th2 cell-specific transcription factors c-Maf and GATA-3 as well the transcription factors NFAT and AP-1.
- Activation of the IL-4 receptor results in the binding of STAT6 to the cytoplasmic domain of the IL-4 receptor, where it is phosphorylated by Jak1 and Jak3 kinases.
- GATA-3 is a zinc finger transcription factor that is expressed only in mature Th2 cells, not in Th1 cells.
- Th2 cells produce cytokines such as IL-4, IL-5, IL-6, IL-13 and GM-CSF.
- the polarization to Th2 inhibits Th1 differentiation by suppression of Tbet and vice versa.
- the expression of GATA-3 is not limited to T cells. Expression of GATA-3 could also be detected in eosinophils and basophils, mast cells and epithelial cells.
- GATA-3 plays a central role in the immunopathogenesis of chronic inflammatory diseases, especially allergic asthma.
- the subgroup "Th2 high” of the asthma patients has among others an increased expression of the POSTN gene, which codes for the protein periostin, as well as the genes for IL-13 and IL-5.
- the "Th2 low” group of asthma patients tested showed low POSTN gene expression, comparable to a control group of healthy individuals.
- a classification was made according to the serum periostin level, which serves as a replacement marker (surrogate marker) for the Th2 cytokine IL-13, which is difficult to detect in blood or respiratory samples.
- This exploits the fact that IL-13, inter alia, induces the expression of the periostin-encoding gene POSTN in epithelial cells in vitro (Woodruff et al., 2007, Proc Natl Acad Sci USA., 104 (40): 15858-63.)
- Genome-wide profiling identifies epithelial cell associated with asthma and with treatment response to corticosteroids.).
- WO 2009/124090 A1 a certain classification of asthma patients has also been proposed, the gene expression of a large number of candidate genes, such as POSTN, CLCA1 and SERPINB2, being used. Since these genes are known to be upregulated by the Th2 cytokines IL-4 or IL-13, the cluster was also referred to as the "IL-4 / IL-13 signature.”
- IL-4 / IL-13 signature the cluster was also referred to as the "IL-4 / IL-13 signature.”
- biomarker for reliable and clinically feasible molecular phenotyping of a patient suffering from chronic inflammation, suffering human patients in the groups "Th2-high” or “Th2-low” or “Th1 -high” or “Th1 -low” is suitable. Furthermore, the patient classified in this way should have one specific to them Subgroup particularly effective therapeutic agent to be treatable.
- the biomarker is intended to allow an individual prediction of the effectiveness of a therapeutic agent in relation to a patient, in particular an asthma patient.
- said object is achieved by a method for diagnosing a molecular phenotype of a human patient suffering from a disease associated with chronic inflammation, wherein the molecular phenotype is selected from the group consisting of the subgroups "Th2 high”, “Th2 low “,” Th1 high “and” Th1 low “and the gene expression of GATA-3 and / or Tbet in a biological isolate of the patient is measured and used for the assignment to a molecular phenotype of the disease.
- the more detailed classification of a human patient suffering from a disease associated with chronic inflammation is carried out by measuring the gene expression of the transcription factor GATA-3 and / or the transcription factor Tbet.
- the development of autoimmune diseases and chronic inflammatory reactions involves the Th1 cell-specific transcription factor Tbet and the Th2 cell-specific transcription factor GATA-3.
- Polarization to Th2 inhibits Th1 differentiation by suppression of Tbet and vice versa.
- GATA-3 and / or Tbet it can be assigned to a molecular phenotype, ie to a subgroup of the disease associated with chronic inflammation.
- said molecular phenotyping can be carried out without difficulty in everyday clinical life with high significance.
- the transcription factors GATA-3 and Tbet are the key molecules in the development of Th1- and Th2-dependent chronic inflammatory diseases. Therefore, the direct measurement of protein or mRNA expression represents a best possible patient stratification approach, since no intervening mechanisms may possibly falsify the outcome.
- the level of expression of GATA-3 and / or Tbet is determined by the amount of protein or mRNA.
- the amount of protein can be determined quantitatively with the help of an immunoassay.
- the immunoassay is preferably an enzyme-linked immunosorbent assay (ELISA) test, a radioimmunoassay (RIA), an electrochemiluminescence (ECL) immunoassay, a CLIA (chemoluminescence-linked immunosorbent assay), a FLIA (fluorescence-linked immunosorbent assay) or a multiplex assay.
- any other suitable assay for quantitative detection of the protein amount of GATA-3 and / or Tbet may optionally be selected.
- the level of expression of GATA-3 and / or Tbet may be via mass spectrometric methods, chromatographic methods such as gas chromatography, liquid-based methods using solid-phase separation such as HPLC, or micro- and nanofluidic methods.
- the method may include the steps of determining the expression of GATA-3 or Tbet using an ELISA assay:
- the second specific antibody can be labeled, for example, with biotin and a separate addition of a streptavidin-coupled enzyme can be made.
- the second specific antibody may also be coupled directly to an enzyme. If appropriate, a third antibody directed against the second specific antibody coupled with an enzyme may also be used.
- the enzyme is preferably a peroxidase or alkaline phosphatase and is reacted with a suitable substrate suitable for colorimetry or chemiluminescence and the like.
- a suitable substrate suitable for colorimetry or chemiluminescence and the like.
- the mRNA amount of GATA-3 and / or Tbet according to a further aspect of the present invention, in addition to or in alternative to said detection of Protein amount can be determined.
- a PCR particularly preferably a qPCR, or a micro-array chip is suitable. It is known to the person skilled in the art how to select GATA-3 and Tbet specific probes or primers for the named detection methods.
- the biological isolate was recovered from whole blood, urine, sputum, bronchoalveolar lavage (BAL), biopsy, brush swab, cerebrospinal fluid, tracheal secretion, seminal fluid, ascites fluid, saliva, punctate or lymphatic fluid according to a preferred embodiment of the method.
- BAL bronchoalveolar lavage
- the person skilled in the art knows the routine methods for obtaining a suitable biological isolate.
- GATA-3 and Tbet are proteins that act as transcription factors in the nucleus of T helper cells of the subtypes Th1 and Th2.
- cells which produce GATA-3 and Tbet In order to determine the concentration of these two nuclear proteins in a given volume of a biological isolate, such as in a given volume of whole blood or the like, cells which produce GATA-3 and Tbet must first be isolated and then lysed. Direct detection of these proteins from human serum or plasma is hardly possible because they are not present in detectable concentration there. An analysis of GATA-3 and Tbet may therefore be carried out in four stages:
- the method according to the invention irrespective of whether the expression level of GATA-3 and / or Tbet is determined via the protein or mRNA quantity, also comprises one or more of the following steps:
- an assignment of the patient to a molecular phenotype of the subgroup "Th2 high” occurs when at least one of the following conditions is met:
- the subgroup "Th2 high” is thus characterized either by a high absolute GATA-3 gene expression compared to a defined reference value, whereby the reference value-in the case of the measurement of the protein quantity-can be a corresponding value of the GATA-3 protein content in a healthy person's isolate
- absolute reference values may also be used: in the case of measurement of the mRNA quantity, a reference value may be a corresponding value of the quantity of GATA-3 mRNA in a healthy person's isolate, but it may also be absolute reference values, such as copies / ml, are used.
- an assignment of the patient to the mentioned molecular phenotype of the subgroup "Th2 high” is carried out according to an advantageous embodiment of the method according to the invention, when alternatively or in addition to increased GATA-3 gene expression, the ratio of GATA-3: Tbet gene expression in the biological isolate higher than a defined
- the reference value can be a corresponding value of the ratio of GATA-3: Tbet gene expression in a healthy person's isolate.
- the determination of the ratio of GATA-3: Tbet gene expression increases the certainty of the statement since, in addition to the GATA As the two transcription factors counteract in their expression, as described in the introduction, the inclusion of Tbet represents an internal control for the measurement of GATA-3 gene expression.
- the method according to the invention for the assignment of the patient to the molecular phenotype of the subgroup "Th2 high” comprises the steps:
- a further determination of further parameters for the safe classification into the subgroup "Th2 high” takes place, for example, the serum IgE level and the number of eosinophilic granulocytes can be measured.
- An assignment to the subgroup "Th2 high” occurs when, in addition, the serum IgE level is higher than 100 IU / ml and / or the number of eosinophilic granulocytes is 0.14x10 9 cells per liter or higher.
- the concentration of nitrogen monoxide in the exhaled air so a determination of the FeNO value, carried out.
- a further advantageous embodiment of the method according to the invention relates to an assignment of the patient to a molecular phenotype of the subgroup "Th2 low" if at least one of the following conditions is met:
- the subgroup "Th2 low” is thus characterized either by a low absolute GATA-3 gene expression compared to a defined reference value, whereby the reference value-in the case of the measurement of the protein amount-can be a corresponding value of the GATA-3 protein content in a healthy person's isolate It should be noted here that in a patient of the subgroup "Th2 low” with a disease associated with chronic inflammation, absolute GATA-3 gene expression will regularly be higher than in an isolate of a healthy patient. However, absolute GATA-3 gene expression may also be lower than in a healthy one.
- the GATA-3 gene expression is not as high as for the Subgroup "Th2 high” is described, meaning that the patient is assigned to the subgroup "Th2 low” if his GATA-3 protein content is only moderately elevated, if at all, compared with a healthy person isolate.
- fixed reference values can also be used.
- a corresponding value of the amount of GATA-3 mRNA in the isolate of a healthy person can be used as the reference value, whereby the patient is assigned to the subgroup "Th2 low” if its amount of GATA-3 mRNA is lower than in a corresponding sample of a healthy or at least not significantly increased, but again fixed reference values can be used.
- an assignment of the patient to the said molecular phenotype of the subgroup "Th2 low” is carried out according to an advantageous embodiment of the method according to the invention, when alternatively or additionally to the reduced GATA-3 gene expression, the ratio of GATA-3: Tbet gene expression in the biological isolate is lower than a defined one
- the reference value used may be a corresponding value of the ratio of GATA-3: Tbet gene expression in a healthy person's isolate.
- the determination of the ratio of GATA-3: Tbet gene expression also increases the reliability of the statement, since in addition to the GTA-3 gene expression as an additional parameter that determines Tbet gene expression Since the two transcription factors counteract in their expression as described above, the inclusion of Tbet is, in some respects, an internal control for the measurement of GATA-3 gene expression.
- the method according to the invention for assigning the patient to the molecular phenotype of the subgroup "Th2 low” comprises the steps:
- further parameters can be determined for the safe classification into the subgroup "Th2 low.”
- the serum IgE level and the number of eosinophilic granulocytes can be measured. Assignment to the subgroup "Th2 low” occurs when, in addition, the serum IgE level is lower than 100 IU / ml and / or the number of eosinophilic granulocytes is below 0.14x10 9 cells per liter Concentration of nitric oxide in the exhaled air, so a determination of the FeNO value to be performed.
- the patient is assigned to a molecular phenotype of the subgroup "Th1 high" if at least one of the following conditions is met:
- the Tbet gene expression in the biological isolate is higher than a defined one
- the ratio of Tbet: GATA-3 gene expression in the biological isolate is higher than a defined reference value.
- the subgroup "Th1 high” is thus characterized either by a high absolute Tbet gene expression compared to a defined reference value, whereby a corresponding value of the Tbet protein content in the isolate of a healthy person can be used as reference value - in the case of the measurement of the protein quantity of the patient to the subgroup "Th1 high” occurs when its Tbet protein content is increased.
- fixed reference values can also be used.
- a corresponding value of the Tbet mRNA amount in the isolate of a healthy person can be used as the reference value, whereby the patient is assigned to the subgroup "Th1 high" if its tbet mRNA amount is increased however, fixed reference values can also be used in turn.
- an assignment of the patient to the said molecular phenotype of the subgroup "Th1 high” is carried out according to an advantageous embodiment of the method according to the invention, if alternatively or in addition to increased Tbet gene expression, the ratio of Tbet: GATA-3 gene expression in the biological isolate is higher than a defined reference value
- the ratio of Tbet: GATA-3 gene expression in the isolate of a healthy person can be used as a reference value.
- the determination of the ratio of Tbet: GATA-3 gene expression also increases the reliability of the statement, as in addition to the Tbet gene expression as an additional parameter the GATA-3 gene expression is detected and the inclusion of GATA-3 constitutes an internal control for the measurement of Tbet gene expression.
- the method according to the invention for assigning the patient to the molecular phenotype of the subgroup "Th1 high” comprises the steps:
- a further aspect of the present invention relates to a method which allows an assignment of the patient to a molecular phenotype of a subgroup "Th1 low" if at least one of the following conditions is met:
- the subgroup "Th1 low” is thus characterized either by a low absolute Tbet gene expression compared to a defined reference value, whereby the reference value - in the case of the measurement of the protein quantity - can be a corresponding value of the Tbet protein content in a healthy person's isolate Note that in a patient of the subgroup "Th1 low” with a disease associated with chronic inflammation, absolute Tbet gene expression may still be higher than in a healthy patient isolate. However, absolute Tbet gene expression may be lower than that of a healthy individual.
- Tbet gene expression is not as high as described for the subgroup "Th1 high.” Assignment of the patient to the "Th1 low” subgroup thus occurs when its Tbet protein content, if any, is not significantly increased over a healthy subject isolate is.
- fixed reference values can also be used.
- a corresponding value of the tbet mRNA amount in the isolate of a healthy person with an assignment of the patient to the subgroup "Th1 low” occurs when its Tbet mRNA level is lower than in a corresponding sample of a healthy or at least not significantly increased, but fixed reference values can be used again Low "takes place according to an advantageous embodiment of the method according to the invention, when alternatively or additionally to the reduced Tbet gene expression, the ratio of Tbet: GATA-3 gene expression in the biological isolate is lower than a defined reference value. In this case, a corresponding value of the ratio of Tbet: GATA-3 gene expression in the isolate of a healthy person can be used as the reference value.
- the determination of the ratio of Tbet: GATA-3 gene expression also increases the certainty of the statement, as in addition to the Tbet gene expression as an additional parameter GATA-3 gene expression is detected and the inclusion of GATA-3 in some respects an internal control for the Represents measurement of Tbet gene expression.
- the method according to the invention for assigning the patient to the molecular phenotype of the subgroup "Th1 low” comprises the steps:
- further parameters for reliable classification into the subgroups "Th1 high” and “Th1 low” can be determined. For example, the number of eosinophilic granulocytes or serum IgE levels can be measured. Assignment to the subgroup “Th1 high” is made when the serum IgE level is lower than 100 IU / ml and / or the number of eosinophilic granulocytes is below 0.14x10 9 cells per liter, otherwise it will be assigned to the subgroup " Th1 low ". Alternatively, if necessary, the concentration of nitrogen monoxide in the exhaled air, so a determination of the FeNO value, carried out.
- normalization of the concentrations of GATA-3 and Tbet can be performed. Differences in sample preparation may arise, for example, from different cell numbers being lysed, from different lysis efficiencies of the individual samples or from different content of the different cell types within the cell preparations. Standardization possibilities according to the invention include: normalization to the total protein content of the cell lysate, normalization to the cell number that has been lysed or normalization to the concentration of specific marker proteins that are found specifically in specific cell types.
- the patients with diagnosed molecular phenotype of the subgroup "Th2 high” may be classified in the subgroup “Th1 low” at the same time.
- Patients with a diagnosed molecular phenotype of the subgroup “Th1 high” may also be classified in the subgroup “Th2 low” at the same time. This is due to the fact that the polarization to Th2 inhibits Th1 differentiation by suppression of Tbet and vice versa.
- diseases are diagnosed or treated, which are associated with chronic inflammation, such.
- Autoimmune diseases diseases of the rheumatic type (manifestations of, inter alia, skin, lung, kidney, vascular system, nervous system, connective tissue, musculoskeletal system, endocrine system), allergic immediate-type reactions and asthma, chronic obstructive pulmonary disease (COPD), arteriosclerosis, psoriasis and contact dermatitis, as well as chronic rejection reactions Organ and bone marrow transplantation.
- Tumor diseases can also be diagnosed or treated according to the invention, as far as GATA-3 or Tbet are involved in the development and / or are deregulated as a consequence.
- the chronic inflammatory disease is either Th2-related, such as allergic bronchial asthma, rhinoconjunctivitis, allergic sinusitis, atopic dermatitis, food allergies, pemphigus, ulcerative colitis, parasitic diseases, or Th1-related, such as psoriasis, allergic contact dermatitis, Crohn's disease, COPD, rheumatoid arthritis, autoimmune diseases, type 1 diabetes mellitus or MS.
- Th2-related such as allergic bronchial asthma, rhinoconjunctivitis, allergic sinusitis, atopic dermatitis, food allergies, pemphigus, ulcerative colitis, parasitic diseases
- Th1-related such as psoriasis, allergic contact dermatitis, Crohn's disease, COPD, rheumatoid arthritis, autoimmune diseases, type 1 diabetes mellitus or MS.
- a medicament for the treatment of diseases associated with chronic inflammation of a human patient having a molecular phenotype wherein the molecular phenotype has been determined according to a method according to one or more embodiments of said diagnostic method according to the invention.
- the identified molecular phenotype includes in particular the groups "Th1 low", “Th1 high”, “Th2 low” or "Th2 high”.
- said drug contains a GATA-3 or Tbet specific ribonucleic acid or deoxyribonucleic acid, in particular a GATA-3 or Tbet specific DNAzyme.
- a general DNAzyme model represents the "10-23" model (Sontoro et al., 1997) DNAzymes of the 10-23 model - also referred to as "10-23 DNAzymes" - have a catalytic domain of 15 nucleotides, which is flanked by two substrate binding domains.
- the catalytic domain preferably has the sequence ggctagctacaacga (SEQ ID No. 154).
- the length of the substrate binding domains is variable, they are either the same or different lengths. In a preferred embodiment, the length of the substrate binding domains is between 6 and 14 nucleotides, most preferably at least nine nucleotides each.
- Such DNAzymes include the general sequence nnnnnnnnggctagctacaacgannnnnnnnn (SEQ ID NO 155). Particularly preferred are substrate binding domains which bind mRNA encoding the proteins GATA-3 and Tbet. The indicated catalytic central domain ggctagctacaacga is merely a preferred embodiment.
- the substrate binding domains are fully complementary to the region flanking the cleavage site however, the DNAzyme of the 10-23 type does not necessarily cleave the target mRNA to purine-pyrimidine sequence sequences
- the DNAzymes preferably comprise the in vivo active DNAzyme against GATA-3 and Tbet according to WO 2005/033314 A2, the content of which is explained in the disclosure of the present invention.
- a drug for the specific inhibition of GATA-3 expression in vivo contains in particular at least one DNAzyme selected from the group consisting of DNAzymes having a sequence according to one of the sequences SEQ ID NO 1 to SEQ ID NO 70.
- a DNAzyme preferably binds to an mRNA, that for a human GATA-3 gene with a gene sequence selected from the sequences SEQ ID NO 151 (human GATA-3 from database no .: XM_043124), SEQ ID NO 152 (human GATA-3 from database no .: X58072) and SEQ ID NO 153 (human GATA-3, sequenced from plasmid pCR2.1).
- a drug for specifically inhibiting GATA-3 expression in vivo preferably contains the DNAzyme hgd40 having the sequence 5'-GTGGATGGAggctagctacaacgaGTCTTGGAG (SEQ ID NO 40).
- a medicament for the specific inhibition of Tbet expression in vivo contains in particular at least one DNAzyme selected from the group consisting of DNAzymes having a sequence according to one of the sequences SEQ ID NO 71 to SEQ ID NO 148.
- a DNAzyme preferably binds to an mRNA which is suitable for a human Tbet gene with a gene sequence selected from the sequences SEQ ID NO 149 (human Tbet from database No .: NM_013351) and SEQ ID NO 150 (human Tbet, sequenced from pBluescript-SK) encoded.
- a drug for specifically inhibiting Tbet expression in vivo preferably contains the DNAzyme td69 with the sequence 5'-GGCAATGAAggctagctacaacgaTGGGTTTCT (SEQ ID NO 139) or td70 with the sequence 5'-TCACGGCAAggctagctacaacgaGAACTGGGT (SEQ ID NO 140).
- the drug may contain a suitable siRNA for specific inhibition of GATA-3 or Tbet expression.
- the pharmaceutical composition preferably has a formulation comprising said specific ribonucleic acid or deoxyribonucleic acid molecules to the patient in the form of a pharmaceutically acceptable composition, either orally, rectally, parenterally, intravenously, intramuscularly or subcutaneously, intracisternally, intravaginally, intraperitoneally, intrathecally, can be administered intravascularly, locally (powder, ointment or drops) or in spray form.
- Dosage forms for topical administration of the drug of this invention include ointments, powders, sprays or inhalants.
- the active component is administered under sterile conditions with a physiologically acceptable carrier and possible P reserve! g., buffers or propellants, as needed.
- the medicine can be used to treat all disease groups associated with chronic inflammation.
- patients with a molecular phenotype of the subgroup "Th2 high” are treated with a GATA-3-specific DNAzyme. specific DNAzyme.
- the treatment of a patient with the molecular phenotype of the subgroup "Th2 low” with a Tbet-specific DNAzyme and the treatment of a patient with the molecular phenotype of the subgroup "Th1 low” with a GATA-3 DNAzyme are treated with a GATA-3-specific DNAzyme.
- a drug of the present invention having a GATA-3 specific DNAzyme is preferably for the treatment of a patient having a molecular phenotype of the subgroup "Th2 high", and a drug having a Tbet specific DNAzyme is preferably for the treatment of a patient having a molecular phenotype of the subgroup "Th1 high ".
- a particular advantage of the drug according to one embodiment mentioned above for the specific therapy of a subgroup of patients diagnosed according to the invention - namely "Th2 high", “Th2 low”, “Th1 high” or “Th1 low” - is that with the help of the specific Drug, in particular a DNAzyme and / or a siRNA, a functional inactivation of just the coding ribonucleic acid molecules of transcription factors whose differential expression has previously been determined and which are involved in the development of chronic inflammatory reactions and autoimmune diseases.
- the medicament according to the invention has a high specificity. It causes a cell-specific intervention and is specific to compartments and organs.
- Dosage forms of the pharmaceutical compositions of the invention include pharmaceutically acceptable compositions containing modifications and prodrugs, provided that they do not cause excessive toxicity, irritation, or allergic reactions to the patient, based on reliable medical judgment.
- prodrug refers to compounds that are transformed to enhance uptake, such as by hydrolysis in the blood.
- a suitable multiple emulsion comprises an outer water phase W1, an oil phase O dispersed in the outer water phase W1 and an inner water phase W2 dispersed in the oil phase O, wherein in the inner water phase W2 at least one electrolyte selected from the group of the alkali metal and alkaline earth halides and sulfates and at least one specific ribonucleic acid or deoxyribonucleic acid molecule, preferably a GATA-3 or Tbet-specific DNAzyme, wherein the outer water phase W1 contains a hydrophilic emulsifier which is a polymer of ethylene oxide and propylene oxide, and the oily phase O.
- nucleic acid molecules in particular, can be protected particularly effectively against undesired degradation.
- the type of dosage is determined by the attending physician according to the clinical factors. It is known to those skilled in the art that the type of dosage depends on various factors such as height, weight, body surface, age, sex or the general health of the patient, but also on the specific agent, the duration and method of administration and of other medications that may be administered in parallel. In this case, according to a particularly advantageous embodiment, the amount of the active ingredient of the drug can be adapted to the measured expression level.
- kits for diagnosing a molecular phenotype of a A disease associated with chronic inflammation in human subjects suffering from chronic inflammation wherein the kit contains at least one specific component for quantitatively determining the protein or mRNA level of GATA-3 and / or Tbet in a biological isolate of the patient.
- the diagnostic kit of the invention may be readily presented in the form of a ready-to-use "kit” comprising antibody or antigen adsorbed to a surface of a carrier and a preparation of human IgG antibodies, e.g. in the case of a human, a preparation of anti-human IgG antibodies which are labeled to be detected by a cascade of biotin-streptavidin-peroxidase or alkaline phosphatase-type reactions.
- the diagnostic kit includes, in addition to a carrier, buffers and reagents, e.g. Reagents required to detect the reaction, e.g. Streptavidin coupled with a marker that gives a color reaction.
- reagents e.g. Reagents required to detect the reaction, e.g. Streptavidin coupled with a marker that gives a color reaction.
- the kit additionally comprises a standard sample of GATA-3 and / or T-Bet for calibrating the kit, using a standard sample to detect the protein or mRNA level of GATA-3 and / or Tbet.
- a specific antibody against GATA-3 and / or Tbet is contained for the quantitative determination of the protein amount.
- further components for carrying out an immunoassay in particular an ELISA, may be contained.
- the further component for performing the ELISA is selected from the group consisting of lysis buffer for cell disruption, a microtiter plate, protein quantity standards for GATA-3 and / or Tbet, secondary antibodies and a coupled enzyme for reacting a substrate for detection.
- a further specific antibody against GATA-3 or Tbet from the kit is preferably included.
- the kit may contain a sequence-specific probe and / or primers for the GATA-3 and / or Tbet genes for the quantitative determination of the amount of mRNA.
- cells can be isolated by technologies based on the binding of specific antibodies. Magnetic beads available from Miltenyi (Macs system), Dynal (DynaBeads) or BD-Bioscience (iMAG) are used here. Alternatively, this is done via a tent purification using fluorescence-labeled antibodies to cell sorters, for example from Cytomation (MOFLO) or BD-Bioscience (FACS). Vantage).
- the purity of the target cells is preferably at least 80%, more preferably at least 95%, and most preferably at least 99%.
- RNA isolation Methods for isolating the RNA are e.g. in Sambrook and Russell, Molecular Cloning, A Laboratory Manual, 3rd Ed., Cold Spring Harbor Laboratory (2001), New York and Ausubel et al., Current Protocols in Molecular Biology, John Wiley & Sons (1998), New York ,
- kits silica technology
- RNeasy Kit from Qiagen company to use for RNA isolation.
- GATA-3 and Tbet are proteins that act as so-called transcription factors in the nucleus of T-helper cells of subtypes Th1 and Th2.
- cells which produce GATA-3 and Tbet In order to determine the concentration of these two nuclear proteins in a given volume of a biological isolate, especially in a given volume of whole blood, cells which produce GATA-3 and Tbet must first be isolated and then lysed. Direct detection of these proteins from human serum or plasma is not possible since they are not present at detectable levels there. An analysis of GATA-3 and Tbet therefore takes place in 4 stages:
- the affinity purification of the Th1 / Th2 cell types by antibodies against specific surface markers can also be carried out as a 1-stage process without prior enrichment of the leukocytes,
- the isolation of leucocytes by Ficoll density gradient centrifugation from whole blood is sufficient to carry out a quantification of the proteins GATA-3 and Tbet,
- a bead-based affinity purification of the Th1 / Th2 cell types by antibodies against specific surface markers in a deep well plate in 96-well format can be used,
- a bead-based affinity purification of the leucocytes by antibodies against specific surface markers for example in a deep well plate in 96-well format, can be used
- hypoosmolar lysis of the erythrocytes can be carried out to obtain a leukocyte preparation or
- the protein digestion can also be done directly from whole blood.
- detergent-containing buffers could be:
- High ionic e.g., SDS or cholate and derivatives thereof
- nonionic e.g., Triton or Tween-20
- ionic and nonionic detergents eg Ripa buffer with 50 mM Tris ⁇ HCl (pH 7.5), 150 mM NaCl, 1% NP40, 0.5% sodium deoxycholate and 0.1% SDS.
- FIG. 1 The effect of various detergents on the release of GATA-3 from stimulated Jurkat cells is shown in FIG.
- the concentration of the two transcription factors GATA-3 and Tbet can in principle be determined by various methods. For the purposes of the present invention, inter alia:
- CLIA chemoluminescence-linked immunosorbent assay
- FIG. 2a and 2b show results of quantification of Tbet and GATA-3 by chromogenic sandwich ELISA.
- Cells were recovered from whole blood by Ficoll density gradient centrifugation. The cells (stimulated human mononuclear cells) were lysed with a Ripa buffer. The lysate was assayed for the concentration of GATA-3 and Tbet using two ELISA prototype methods. The concentration of the two proteins was shown in relation to the total protein concentration of the cell lysates (normalization to protein content). The results according to FIG.
- Th1 cells have a higher content of Tbet (about 160 ng / ml analyte / mg protein) than Th2 cells (about 56 ng / ml analyte / mg protein) and this fact clearly from the result of the ELISA test:
- the Tbet content in the Th1 cells is thus more than two times higher, namely about a factor of three, than in Th2 cells.
- the content of GATA-3 in Th2 cells (about 10 ng / ml analyte / mg protein) is higher than in Th1 cells (about 6 ng / ml analyte / mg protein).
- the GATA-3 content is therefore more than 1.5-fold higher in the Th2 cells - namely around the factor 1, 7 - than in Th1 cells.
- the quantitative ratio of Tbet: GATA-3 in Th1 cells differs substantially from the corresponding ratio in Th2 cells.
- the ratio of Tbet: GATA-3 here in Th1 cells is about 27, ie more than 20, whereas the corresponding ratio in Th2 cells is about 6, that is less than 10.
- GATA-3 and Tbet The quantitative determination of GATA-3 and Tbet is carried out in each case by means of a sandwich ELISA (enzyme-linked immunosorbent assay).
- the wells of a 96 well microtiter plate are coated with specific antibodies against GATA-3.
- GATA-3 binds to the antibodies on the 96-well plate.
- peroxidase-labeled streptavidin is added.
- substrate is added.
- the color development is terminated after a defined time by adding a stop solution.
- the intensity of color development is quantified by a microtiter plate reader. The quantification of the samples is carried out by comparison with the entrained standards known protein concentration.
- FIG. 3 shows a corresponding standard curve of a GATA-3 ELISAS.
- the steps relate in detail to:
- the detection of the Tbet protein is carried out according to the following test principle:
- the quantitative determination of Tbet is carried out by means of a sandwich ELISA (enzyme-linked immunosorbent assay).
- the wells of a 96 well microtiter plate are coated with specific antibodies against Tbet. After addition of the sample or standard Tbet binds to the antibodies on the 96-well plate. After a washing step to remove unbound substances, a second specific antibody is added against Tbet. After a further washing step to remove the unbound substances, a peroxidase-labeled antibody is added against the Tbet-specific antibody. After a final washing step to remove unbound substances, substrate is added.
- the color development is terminated after a defined time by adding a stop solution. The intensity of color development is quantified by a microtiter plate reader. The quantification of the samples is carried out by comparison with the entrained standards known protein concentration.
- FIG. 4 shows a corresponding standard curve of a Tbet E
- the steps in detail relate to:
- Possibilities of standardization according to the invention include:
- FIG. 5 shows a normalized determination of Tbet in lysates of human peripheral blood mononuclear cells (PBMC). Lysis of PBMCs of healthy subjects and patients suffering from allergic diseases, such as allergic bronchial asthma, rhinoconjunctivitis, allergic sinusitis, atopic dermatitis, Food allergies. The concentration of Tbet was normalized to the cell number in the lysates. The disease is dependent on Th2 cells and, consequently, a lower concentration of Tbet (about 12 ng / ml / 1 million cells) was found in the allergy sufferers compared to healthy samples (about 27 ng / ml / 1 million cells).
- PBMC peripheral blood mononuclear cells
- the Tbet concentration was thus reduced slightly more than a factor of 2 in the allergy sufferer compared to a healthy subject.
- An assignment of the patients to the molecular phenotype "Th1 -low" is thus simply possible here, since the Tbet gene expression in the biological isolate is lower than a defined reference value, here the Tbet gene expression of healthy samples.
- Example 4 for sample preparation Th1 / Th2 cells by means of magnetic beads, which are coated with cell-specific antibodies, enriched. Subsequently, the detection of GATA-3 according to the instructions of Example 2.
- Embodiment 5 In a modification of Examples 2 and 3, according to Example 4 for sample preparation, leucocytes are enriched by size exclusion filtration. Subsequently, the detection of GATA-3 according to the instructions of Example 2.
- a GATA-3-specific DNAzyme shows therapeutic effects in the mouse model of OVA-induced allergic airway inflammation of the "Th2-high” phenotype.
- mice were sensitized by intraperitoneal injection with the model allergen ovalbumin (OVA) in the presence of the adjuvant AI (OH) 3 on days 0, 14 and 21 Days 24-26, the mice inhaled a 1% OVA aerosol to induce a Th2-dominated lung allergic inflammatory response
- OVA ovalbumin
- the GATA-3 specific DNAzyme hgd40 SEQ ID NO 40 was resolved in PBS, administered intranasally.
- the Balb / c mouse strain is characterized by preferentially generating strong Th2 responses. This is reinforced by the use of AL (OH) 3 as an adjuvant that clearly supports the development of Th2-dominated immune responses.
- the mouse model described is correspondingly characterized by massive infiltration of eosinophils and Th2 cells into the respiratory tract along with hyperplasia of the mucus-forming goblet cells with increased mucus production and formation of respiratory hyperresponsiveness.
- Immunologically in addition to allergen-specific Th2 cells, characterized by the production of the typical cytokines IL-4, IL-5 and IL-13, also OVA-specific antibodies of the immunoglobulin classes IgE and IgG1 (in the mouse both Th2-dependent) can be detected. All of these parameters are typical clinical features of a "Th2-high" phenotype (Wenzel et al., Am J Respir Crit Care Med.
- eosinophilic granulocytes represent approximately 60-70% of all leukocytes in the bronchoalveolar lavage (BAL) in the mouse model, while already 3-5% These cells in the sputum of patients indicate a Th2-dominated phenotype.
- a GATA-3 specific DNAzyme shows significant therapeutic effects in the chronic mouse model of Th2-dominated allergic airway inflammation
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Abstract
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Priority Applications (9)
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US14/428,043 US9791454B2 (en) | 2012-09-14 | 2013-09-04 | Method for diagnosing a molecular phenotype of a patient suffering from an illness accompanied by chronic inflammation |
JP2015531519A JP6401163B2 (ja) | 2012-09-14 | 2013-09-04 | 慢性炎症に伴う疾病の患者の分子表現型の分類方法 |
BR112015005583A BR112015005583A2 (pt) | 2012-09-14 | 2013-09-04 | método para o diagnóstico de um fenótipo molecular de um paciente que sofre de uma doença associada à inflamação crônica |
RU2015112894A RU2672595C2 (ru) | 2012-09-14 | 2013-09-04 | Способ диагностики молекулярного фенотипа пациента, страдающего заболеванием, сопровождающимся хроническими воспалениями |
AU2013314510A AU2013314510A1 (en) | 2012-09-14 | 2013-09-04 | Method for diagnosing a molecular phenotype of a patient suffering from an illness accompanied by chronic inflammation |
KR1020157009484A KR102157768B1 (ko) | 2012-09-14 | 2013-09-04 | 만성 염증을 동반하는 질병을 앓는 환자의 분자 표현형의 진단 방법 |
CA2888860A CA2888860C (en) | 2012-09-14 | 2013-09-04 | Method for diagnosing a molecular phenotype of a patient suffering from an illness accompanied by chronic inflammation |
US15/782,595 US10591489B2 (en) | 2012-09-14 | 2017-10-12 | Method for diagnosing a molecular phenotype of a patient suffering from an illness accompanied by chronic inflammation |
AU2019204108A AU2019204108B2 (en) | 2012-09-14 | 2019-06-12 | Method for diagnosing a molecular phenotype of a patient suffering from an illness accompanied by chronic inflammation |
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EP12184500.2A EP2708898A1 (de) | 2012-09-14 | 2012-09-14 | Verfahren zur Diagnose eines molekularen Phänotyps eines an einer mit chronischen Entzündungen einhergehenden Erkrankung leidenden Patienten |
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US15/782,595 Continuation US10591489B2 (en) | 2012-09-14 | 2017-10-12 | Method for diagnosing a molecular phenotype of a patient suffering from an illness accompanied by chronic inflammation |
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AU (2) | AU2013314510A1 (de) |
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CA (2) | CA3199111A1 (de) |
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Cited By (3)
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EP3093022A1 (de) | 2015-05-15 | 2016-11-16 | Sterna Biologicals GmbH & Co. KG | Gata-3-inhibitoren zur behandlung von th2-bewirktem asthma |
WO2017205506A1 (en) | 2016-05-24 | 2017-11-30 | Emory University | Particles with rna cleaving nucleobase polymers and uses for managing inflammatory disorders |
EP3514235A1 (de) * | 2018-01-18 | 2019-07-24 | Sterna Biologicals GmbH & Co. KG | Zusammensetzung zur behandlung eines an colitis ulcerosa leidenden patienten sowie verwendung der zusammensetzung als arzneimittel |
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EP3501607A1 (de) * | 2017-12-22 | 2019-06-26 | Sterna Biologicals GmbH & Co. KG | Zusammensetzung zur behandlung eines an einer mit chronischen entzündungen einhergehenden atemwegserkrankung leidenden patienten sowie herstellungsverfahren und verwendung der zusammensetzung |
EP3603617A1 (de) * | 2018-07-30 | 2020-02-05 | Sterna Biologicals GmbH & Co. KG | Aerosolerzeugungseinrichtung zur inhalativen verabreichung einer antisense-molekül-haltigen zusammensetzung |
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WO2005033314A2 (de) | 2003-10-02 | 2005-04-14 | Philipps-Universität Marburg | Verfahren zur herstellung eines zell- und/oder gewebe- und/oder krankheitsphasen-spezifischen arzneimittels |
WO2009124090A1 (en) | 2008-03-31 | 2009-10-08 | Genentech, Inc. | Compositions and methods for treating and diagnosing asthma |
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US8853264B2 (en) * | 2005-01-07 | 2014-10-07 | Newtree Industry Co., Ltd. | Use of lignan compounds for treating or preventing inflammatory disease |
US8258150B2 (en) | 2006-08-17 | 2012-09-04 | The University Of Chicago | Treatment of inflammatory diseases |
EP2227232A1 (de) * | 2007-12-07 | 2010-09-15 | Fibrogen, Inc. | Verfahren zur unterdrückung der differenzierung von t-helfer-zellen |
US20120029054A1 (en) * | 2009-03-19 | 2012-02-02 | Merck Sharp & Dohme Corp. | RNA Interference Mediated Inhibition of GATA Binding Protein 3 (GATA3) Gene Expression Using Short Intefering Nucleic Acid (siNA) |
CN102482667B (zh) * | 2009-07-29 | 2014-04-23 | 希森美康株式会社 | 人的产生il-17的辅助性t细胞的检测用标记物及试剂、以及人的产生il-17的辅助性t细胞的检测方法 |
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2012
- 2012-09-14 EP EP12184500.2A patent/EP2708898A1/de not_active Withdrawn
-
2013
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EP3093022A1 (de) | 2015-05-15 | 2016-11-16 | Sterna Biologicals GmbH & Co. KG | Gata-3-inhibitoren zur behandlung von th2-bewirktem asthma |
WO2016184556A1 (en) * | 2015-05-15 | 2016-11-24 | Sterna Biologicals Gmbh & Co.Kg | Gata-3 inhibitors for use in the treatment of th2-driven asthma |
CN107771082A (zh) * | 2015-05-15 | 2018-03-06 | 燕鸥生物制剂有限两合公司 | 用于治疗th2驱动型哮喘的gata‑3抑制剂 |
US10487325B2 (en) | 2015-05-15 | 2019-11-26 | Sterna Biologicals Gmbh & Co. Kg | GATA-3 inhibitors for use in the treatment of Th2-driven asthma |
RU2720988C2 (ru) * | 2015-05-15 | 2020-05-15 | ШТЕРНА БИОЛОГИКАЛС ГМБХ энд КО. КГ | ИНГИБИТОРЫ GATA-3 ДЛЯ ПРИМЕНЕНИЯ В ЛЕЧЕНИИ Th2-ИНДУЦИРОВАННОЙ АСТМЫ |
AU2016264772B2 (en) * | 2015-05-15 | 2021-09-09 | Sterna Biologicals Gmbh | GATA-3 inhibitors for use in the treatment of Th2-driven asthma |
CN115137827A (zh) * | 2015-05-15 | 2022-10-04 | 燕鸥生物制剂有限两合公司 | Gata-3基于核酸的灭活剂在制备用于治疗患有th2驱动型哮喘的患者的药物中的用途 |
WO2017205506A1 (en) | 2016-05-24 | 2017-11-30 | Emory University | Particles with rna cleaving nucleobase polymers and uses for managing inflammatory disorders |
EP3514235A1 (de) * | 2018-01-18 | 2019-07-24 | Sterna Biologicals GmbH & Co. KG | Zusammensetzung zur behandlung eines an colitis ulcerosa leidenden patienten sowie verwendung der zusammensetzung als arzneimittel |
WO2019141674A1 (de) * | 2018-01-18 | 2019-07-25 | Sterna Biologicals Gmbh & Co.Kg | Zusammensetzung zur behandlung eines an colitis ulcerosa leidenden patienten sowie verwendung der zusammensetzung als arzneimittel |
Also Published As
Publication number | Publication date |
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JP2015531482A (ja) | 2015-11-02 |
JP2019007977A (ja) | 2019-01-17 |
US20180031571A1 (en) | 2018-02-01 |
BR112015005583A2 (pt) | 2017-08-08 |
US20150260728A1 (en) | 2015-09-17 |
US9791454B2 (en) | 2017-10-17 |
AU2013314510A1 (en) | 2015-04-09 |
CA2888860C (en) | 2023-07-18 |
US10591489B2 (en) | 2020-03-17 |
RU2672595C2 (ru) | 2018-11-16 |
KR20150064084A (ko) | 2015-06-10 |
KR102157768B1 (ko) | 2020-09-21 |
CA3199111A1 (en) | 2014-03-20 |
JP6662969B2 (ja) | 2020-03-11 |
RU2015112894A (ru) | 2016-11-10 |
JP6401163B2 (ja) | 2018-10-03 |
WO2014040891A3 (de) | 2014-05-30 |
EP2708898A1 (de) | 2014-03-19 |
CA2888860A1 (en) | 2014-03-20 |
AU2019204108A1 (en) | 2019-07-04 |
AU2019204108B2 (en) | 2021-11-25 |
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