JP2022078246A - 組換え免疫細胞、作製方法、および使用方法 - Google Patents
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Abstract
Description
本出願は、2017年10月26日に提出された米国仮特許出願第62/577,425号の優先権を主張し、参照によりその全体が本明細書に組み込まれる。
本発明は、National Institutes of Healthから授与されたCA203348の下、政府の支援を受けて行われた。政府は本発明に一定の権利を有する。
本出願は、2018年10月26日に作成された、97キロバイトのサイズを有する「Sequence-Listing-0589_ST25.txt」と題されたASCIIテキストファイルとして、EFS-Webを介してUnited States Patent and Trademark Officeに電子的に提出された配列リストを含む配列リストの電子申告により、電子的に提出された配列リストは、37 CFR§1.821(c)により要求される紙のコピーと、§1.821(e)により要求されるCRFの両方として機能する。配列表に含まれる情報は、参照により本明細書に組み込まれる。
非ランダムな遺伝子挿入および安定な発現のために、Sleeping Beautyトランスポゾンプラスミドを使用してCD64/16Aを発現するように未分化iPSCに形質導入した。実施例2に記載されるように、iPSCを造血細胞、次いでiNK細胞に分化させた。CD34+CD43+CD45+細胞を生成し、さらにiNK細胞に分化させ、組換えIL-2およびaAPCを使用した分析のためにこれらの細胞を増殖させた。CD56+CD3-は、ヒトNK細胞の特徴的な表現型であり、これらの細胞は、我々の分化細胞集団の過半数を占めていた(図16)。iNK細胞における活性化受容体および抑制性受容体の発現も評価し、末梢血NK細胞による発現と比較した。CD16A等の特定の受容体は、同様の比率の2つのNK細胞集団によって発現された。しかしながら、増殖したiNK細胞は、抑制性KIR受容体KIR2DL2/3、KIR2DL1、およびKIR3DL1、ならびに特定の活性化受容体(NKp46およびNKG2D)の発現を欠いていた(図16)。末梢血NK細胞と比較した別の違いは、iNK細胞が抗CD64 mAbで染色されたことであり(図16)、CD64/16Aの発現が実証された。
ヒトCD64/16A発現コンストラクトの作成
TRIzol全RNA単離試薬(Invitrogen,Thermo Fisher Scientific、Carlsbad,CA)を使用して末梢血白血球(PBL)から全RNAを単離した。SuperScript Preamplification System(Invitrogen,Thermo Fisher Scientific、Carlsbad,CA)を用いてヒトPBL cDNAを合成した。CD64/16Aは、ヒトCD64細胞外ドメイン(CD64-EC)、ならびにCD16A膜貫通ドメインおよび細胞質ドメイン(CD16A-TM-CY)を含む。キメラコンストラクトは、PCRを重ね合わせることにより生成され、キメラcDNAのEcoR I-隣接RT-PCR産物を作成した。CD64-EC cDNA断片(885bps)は、フォワードプライマー
およびリバースプライマー5’-TTG GTA CCC AGG TGG AAA GAA GCC AAG CAC TTG AAG CTC CAA-3’、配列番号29)を使用してヒトPBL cDNAから増幅した。CD16A-TM-CY cDNA断片(195bps)は、フォワードプライマー5’-TTG GAG CTT CAA GTG CTT GGC TTC TTT CCA CCT GGG TAC CAA-3’(配列番号30)およびリバースプライマー(配列番号31)
を使用してヒトPBL cDNAから増幅した。CD64-EC cDNAおよびCD16A-TM-CY cDNAのPCR断片を、QIAquickゲル抽出キット(Qiagen、Hilden,Germany)で精製し、フォワードプライマー
およびリバースプライマー
と一緒に混合した。上に列挙した全てのプライマーについて、下線が引かれたヌクレオチドは、キメラ受容体のRT-PCR産物を生成するためのEcoR I切断部位である。RT-PCRは、Pfx50 DNAポリメラーゼ(Invitrogen,Thermo Fisher Scientific、Carlsbad,CA)を用いて行った。得られたCD64/CD16a cDNAをレトロウイルス発現ベクターpBMN-IRES-EGFP(Addgene、Cambridge,MA)およびpKT2 Sleeping Beautyトランスポゾンベクターに挿入した(Jing et al.2015.PLoS One 10:e0121788;Hermanson et al.2016.Stem Cells 34:93-101)。ABI BigDyeターミネーターサイクルシーケンスキット(Applied Biosystems,Thermo Fisher Scientific、Foster City,CA)を用いて、ABI 377シーケンサーで両方向から直接配列決定することにより、クローン化された全てのコンストラクトの配列を確認した。
内因性CD16A発現が欠損したヒトNK細胞株であるNK92細胞は、以前に記載されたレトロウイルス感染手順(Jing et al.2015.PLoS One 10:e0121788)を用いて、CD64/16Aを含むpBMN-IRES-EGFPレトロウイルス発現コンストラクトまたは野生型CD16A cDNAで安定に形質導入した。以前に記載されたように(Jing et al.2015.PLoS One 10:e0121788)、ヒトiPSC(UCBiPS7、臍帯血CD34細胞に由来)は、Sleeping Beautyトランスポゾンシステムを使用してCD64/16A-pKT2発現コンストラクトで安定に形質導入した。形質導入したiPSC細胞を、造血細胞に分化させ、次いで、以前に記載されたように、成熟NK細胞に分化させた(Jing et al.2015.PLoS One 10:e0121788)。CD64、CD16、および様々なNK細胞表現型マーカーのeGFP蛍光および表面発現は、フローサイトメトリー分析を使用して決定した。
抗体
ヒトの造血および白血球の表現型マーカーに対する全てのmAbを表2に示す。アイソタイプが一致する全ての陰性対照mAbは、BioLegend(San Diego,CA)から購入した。APC結合F(ab’)2ロバ抗ヒトまたはヤギ抗マウスIgG(H+L)は、Jackson ImmunoResearch Laboratories(West Grove,PA)から購入した。Genentech(South San Francisco,CA)によって製造されるヒトIgG1 mAbであるトラスツズマブ/ハーセプチンおよびリツキシマブ/リツキサン、ならびにBristol-Myers Squibb(Lawrence,NJ)によって製造されるセツキシマブ/エルビタックスは、University of Minnesota Boynton Pharmacyを通して購入した。組換えヒトL-セレクチン/IgG1 Fcキメラは、R&D Systems(Minneapolis,MN)から購入した。
TRIzol全RNA単離試薬(Invitrogen、Carlsbad,CA)を使用してヒト末梢血白血球から全RNAを単離し、SuperScript Preamplification System(Invitrogen、Carlsbad,CA)を用いてcDNAを合成した。組換えCD64/16Aは、ヒトCD64細胞外ドメイン、ならびにCD16A膜貫通ドメインおよび細胞質ドメインで構成される。CD64(885bps)およびCD16A(195bps)のPCR断片は、生成されたcDNAから増幅した。PCR断片を精製し、フォワードプライマー
、リバースプライマー
、およびPfx50 DNAポリメラーゼ(Invitrogen)と一緒に混合して、組換えCD64/16A受容体を生成した。どちらのプライマーについても、下線が引かれたヌクレオチドはEcoR I部位である。CD64/CD16AおよびCD16A cDNA(CD16A-176Vバリアント)をレトロウイルス発現ベクターpBMN-IRES-EGFPに挿入し、以前に記載されたように、NK92細胞形質導入のためにウイルスを生成した(Jing et al.,2015.PLoS One 10(3):e0121788)。さらに、CD64/CD16A cDNAをpKT2 Sleeping Beautyトランスポゾンベクターに挿入し、以前に記載されたように、iPSC形質導入のためにSB100Xトランスポサーゼとともに使用した(Jing et al.,2015.PLoS One 10(3):e0121788)。ABI BigDyeターミネーターサイクルシーケンスキット(Applied Biosystems、Foster City,CA)を用いて、ABI 377シーケンサーで両方向から直接配列決定することにより、全てのコンストラクトのヌクレオチド配列を確認した。
この研究は、University of MinnesotaのInstitutional Review Boardに従って実施され、承認された。全ての対象は、ヘルシンキ宣言に従って、書面によるインフォームドコンセントを提出した。血小板アフェレーシスからの新鮮なヒト末梢血白血球は、Innovative Blood Resources(St.Paul,MN)から入手した。Ficoll-Paque Plus(GE Healthcare Bio-Sciences AB、Uppsala,Sweden)を使用して末梢血単核球をさらに濃縮し、製造業者の指示に従って、EasySepヒトNK細胞キット(StemCell Technologies、Cambridge,MA)を使用して陰性枯渇によりNK細胞を精製し、CD56+CD3-リンパ球の>95%の生存率および90~95%濃縮とした。生細胞のカウントは、Countess II自動セルカウンター(Life Technologies Corporation、Bothell,WA)を使用して行った。ヒトNK細胞株NK92および卵巣癌細胞株SKOV-3はATCC(Manassas,VA)から入手し、製造業者の指示に従って培養した。NK92細胞は、増殖のためにIL-2を必要としたため(500IU/ml)、R&D Systems(Minneapolis,MN)から入手した。後述の全てのアッセイに、対数増殖期にある細胞を使用した。
細胞染色のために、非特異的抗体結合部位をブロックし、示される抗体で細胞を染色し、以前に記載されたように、フローサイトメトリーにより調べた(Romee et al,2013.Blood 121(18):3599-3608;Jing et al.,2015.PLoS One 10:e0121788;Mishra et al.,2018.Cancer Immunol Immunother 67(9):1407-1416)。該当する細胞がFcRを発現したため、対照には、蛍光マイナス1および適切なアイソタイプが一致する抗体を使用した。FSC-A/SSC-Aプロットを使用して白血球集団に電子ゲートを設定し、FSC-A/FSC-Hプロットを使用して単一細胞に電子ゲートを設定した。製造業者の指示(BioLegend、San Diego,CA)に従って、Zombie生存率キットを使用して生細胞対死細胞を評価した。
NK92細胞でCD64/16Aを発現させるために使用されるpBMN-IRES-EGFPベクターもeGFPを発現する。これらの細胞を、IL-2(200IU/ml)、HEPES(10mM)、および2-メルカプトエタノール(0.1mM)を補充したMEM-α基本培地(Thermo Fisher Scientific、Waltham,MA)中で37℃で2時間インキュベートした。SKOV-3細胞を製造業者の指示に従ってCellTrace Violet(Molecular Probes、Eugene,OR)で標識し、5μg/mlトラスツズマブと30分間インキュベートし、MEM-α基本培地で洗浄した。次いで、NK92細胞およびSKOV-3細胞を、補充されたMEM-α基本培地にそれぞれ1×106および2×106/mlで再懸濁した。1:2のE:T比の場合、100μlの各細胞型を一緒に混合し、20×gで1分間遠心分離し、37℃で指定の時間インキュベートした。各時点の後、細胞を3秒間穏やかにボルテックスし、4℃のdPBS中1%のパラホルムアルデヒドで直ちに固定した。試料はフローサイトメトリーにより直ちに分析した。結合したNK細胞の割合は、eGFPとCellTrace Violetのダブルポジティブ事象にゲートをかけることにより計算した。
GraphPad Prism(GraphPad Software、La Jolla,CA,USA)を使用して統計分析を行った。おおよその正規分布を評価した後、全ての変数を平均±SDとしてまとめた。2つの群間の比較はスチューデントのt検定を用いて行い、p<0.05が統計的に有意であると見なした。
rCD64#1(pCDH-CD64)ペプチド配列(配列番号9)
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGLQLPTPVW FHVLFYLAVG IMFLVNTVLW VTIRKELKRK KKWDLEISLD SGHEKKVISS LQEDRHLEEE LKCQEQKEEQ LQEGVHRKEP QGAT
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGLQLPTPVW FHVLFYLAVG IMFLVNTVLW VTIRKELKRK KKWNLEISLD SGHEKKVISS LQEDRHLEEE LKCQEQKEEQ LQEGVHRKEP QGAT
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDK
MWFLTTLLLW VPVDGQVDTT KAVISLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKRSKRS RLLHSDYMNM TPRRPGPTRK HYQPYAPPRD FAAYRSKRGR KKLLYIFKQP FMRPVQTTQE EDGCSCRFPE EEEGGCELRV KFSRSADAPA YQQGQNQLYN ELNLGRREEY DVLDKRRGRD PEMGGKPRRK NPQEGLYNEL QKDKMAEAYS EIGMKGERRR GKGHDGLYQG LSTATKDTYD ALHMQALPPR
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKRSKRS RLLHSDYMNM TPRRPGPTRK HYQPYAPPRD FAAYRSKRGR KKLLYIFKQP FMRPVQTTQE EDGCSCRFPE EEEGGCELRL KIQVRKAAIT SYEKSDGVYT GLSTRNQETY ETLKHEKPPQ
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKRSKRS RLLHSDYMNM TPRRPGPTRK HYQPYAPPRD FAAYRSKRGR KKLLYIFKQP FMRPVQTTQE EDGCSCRFPE EEEGGCELAR PRRSPAQEDG KVYINMPGRG
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKRSKRS RLLHSDYMNM TPRRPGPTRK HYQPYAPPRD FAAYRSKRGR KKLLYIFKQP FMRPVQTTQE EDGCSCRFPE EEEGGCELGR LVPRGRGAAE AATRKQRITE TESPYQELQG QRSDVYSDLN TQRPYYK
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGLQLPTPFW VLVVVGGVLA CYSLLVTVAF IIFWVRSKRS RLLHSDYMNM TPRRPGPTRK HYQPYAPPRD FAAYRSKRGR KKLLYIFKQP FMRPVQTTQE EDGCSCRFPE EEEGGCELRV KFSRSADAPA YQQGQNQLYN ELNLGRREEY DVLDKRRGRD PEMGGKPRRK NPQEGLYNEL QKDKMAEAYS EIGMKGERRR GKGHDGLYQG LSTATKDTYD ALHMQALPPR
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGAPREKYWL QFFIPLLVVI LFAVDTGLFI STQQQVTFLL KIKRTRKGFR LLNPHPKPNP KNN
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRGAGRD WKDHKFKWRK DPQDK
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGSNLFVASW IAVMIIFRIG MAVAIFCCFF FPSGGSGGGS GWRRKRKEKQ SETSPKEFLT IYEDVKDLKT RRNHEQEQTF PGGGSTIYSM IQSQSSAPTS QEPAYTLYSL IQPSRKSGSR KRNHSPSFNS TIYEVIGKSQ PKAQNPARLS RKELENFDVY SGGSGGGSGR VKFSRSADAP AYKQGQNQLY NELNLGRREE YDVLDKRRGR DPEMGGKPRR KNPQEGLYNE LQKDKMAEAY SEIGMKGERR RGKGHDGLYQ GLSTATKDTY DALHMQALPP R
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKWRRKR KEKQSETSPK EFLTIYEDVK DLKTRRNHEQ EQTFPGGGST IYSMIQSQSS APTSQEPAYT LYSLIQPSRK SGSRKRNHSP SFNSTIYEVI GKSQPKAQNP ARLSRKELEN FDVYSGGSGG GSGRVKFSRS ADAPAYKQGQ NQLYNELNLG RREEYDVLDK RRGRDPEMGG KPRRKNPQEG LYNELQKDKM AEAYSEIGMK GERRRGKGHD GLYQGLSTAT KDTYDALHMQ ALPPR
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKWRRKR KEKQSETSPK EFLTIYEDVK DLKTRRNHEQ EQTFPGGGST IYSMIQSQSS APTSQEPAYT LYSLIQPSRK SGSRKRNHSP SFNSTIYEVI GKSQPKAQNP ARLSRKELEN FDVYSGGSGG GSGRLKIQVR KAAITSYEKS DGVYTGLSTR NQETYETLKH
EKPPQ
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKWRRKR KEKQSETSPK EFLTIYEDVK DLKTRRNHEQ EQTFPGGGST IYSMIQSQSS APTSQEPAYT LYSLIQPSRK SGSRKRNHSP SFNSTIYEVI GKSQPKAQNP ARLSRKELEN FDVYSGGSGG GSGARPRRSP AQEDGKVYIN MPGRG
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGFFPPGYQV SFCLVMVLLF AVDTGLYFSV KTNIRSSTRD WKDHKFKWRK DPQDKWRRKR KEKQSETSPK EFLTIYEDVK DLKTRRNHEQ EQTFPGGGST IYSMIQSQSS APTSQEPAYT LYSLIQPSRK SGSRKRNHSP SFNSTIYEVI GKSQPKAQNP ARLSRKELEN FDVYSGGSGG GSGGRLVPRG RGAAEAATRK QRITETESPY QELQGQRSDV YSDLNTQRPY YK
MWFLTTLLLW VPVDGQVDTT KAVITLQPPW VSVFQEETVT LHCEVLHLPG SSSTQWFLNG TATQTSTPSY RITSASVNDS GEYRCQRGLS GRSDPIQLEI HRGWLLLQVS SRVFTEGEPL ALRCHAWKDK LVYNVLYYRN GKAFKFFHWN SNLTILKTNI SHNGTYHCSG MGKHRYTSAG ISVTVKELFP APVLNASVTS PLLEGNLVTL SCETKLLLQR PGLQLYFSFY MGSKTLRGRN TSSEYQILTA RREDSGLYWC EAATEDGNVL KRSPELELQV LGLQLPTPVW FHVLFYLAVG IMFLVNTVLW VTIRKELKRK KKWDLEISLD SGHEKKVISS LQEDRHLEEE LKCQEQKEEQ LQEGVHRKEP QGATGWRRKR KEKQSETSPK EFLTIYEDVK DLKTRRNHEQ EQTFPGGGST IYSMIQSQSS APTSQEPAYT LYSLIQPSRK SGSRKRNHSP SFNSTIYEVI GKSQPKAQNP ARLSRKELEN FDVYSGGSGG GSGRVKFSRS ADAPAYKQGQ NQLYNELNLG RREEYDVLDK RRGRDPEMGG KPRRKNPQEG LYNELQKDKM AEAYSEIGMK GERRRGKGHD GLYQGLSTAT KDTYDALHMQ ALPPR
MWQLVSSTAL LLLVSAGTQA DVPKAVVVLE PKWNRVLTMD SVTLKCQGDH LLRDNYTWLH NGRPISNQIS TYIIKNASIK NSGEYRCQTD QSKLSDPVQL EVHTGWLLLQ VPRLVFQEGE LIQLKCHSWK NTPVRNVQYF QNGRGKKFFY NNSEYHIPAA TSEHNGSYFC RGIIGKKNES SEAVNIIIQG SSLPSTSLLL SHWPQIPFSL VMALLFAVDT GLYFAVQRDL RSSMGNLKNS KVIWSQGS
MWLLTVLLLW VPAGAQTDPV KAVITLQPPW VSVFQEESVT LWCEGPHLPG DSSTQWFLNG TATQTLTPRY RIAAASVNDN GEYRCQTGLS VLSDPIQLGI HRDWLILQVS GRVFTEGEPL TLRCHGWNNK LVYNVLFYQN GTVLKFSPQN SEFTILKTTL HHNGIYHCSA MGKHRYESAG VSITIKELFP APVLKASLSS PILEGHVVNL SCETKLLLQR PGLQLYFSFY MGSKTLLSRN TSSEYQILTA KKEDSGLYWC EATTEDGNVV KRSPELELQV VGPQTLTPVW FHVLFYVAMG MIFLVDTIFC MIIHKELQRK KKWNLEISLY SGLEKRVDSY LQKERDLEEP KYQELEQLQE KTPQKPPEGE QQ
MWLLTVLLLW VPAGAQTDWL ILQVSGRVFT EGEPLTLRCH GWNNKLVYNV LFYQNGTVLK FSPQNSEFTI LKTTLHHNGI YHCSAMGKHR YESAGVSITI KELFPAPVLK ASLSSPILEG HVVNLSCETK LLLQRPGLQL YFSFYMGSKT LLSRNTSSEY QILTAKKEDS GLYWCEATTE DGNVVKRSPE LELQVVGPQT LTPVWFHVLF YVAMGMIFLV DTIFCMIIHK ELQRKKKWNL EISLYSGLEK RVDSYLQKER DLEEPKYQEL EQLQEKTPQK PPEGEQQ
Claims (15)
- キメラIgG Fc受容体であって、
IgG Fc領域に結合するのに十分なCD64の部分を含む細胞外ドメイン、
膜貫通ドメイン、および
IgG Fc領域が前記細胞外ドメインに結合したときに細胞シグナル伝達を開始するのに十分なFc受容体の免疫受容体チロシン活性化モチーフ(ITAM)の部分を含む、細胞内ドメインを含む、キメラIgG Fc受容体。 - 前記細胞内ドメインは、CD16Aの細胞内領域の少なくとも一部を含む、請求項1に記載のキメラIgG Fc受容体。
- 前記細胞内ドメインは、CD27、CD28、CD134(OX40)、CD137(4-1BB)、FcεR1、NKG2D、CD244(2B4)、FcRγ、DAP10、DAP12、またはCD3ζの細胞内領域の少なくとも一部を含む、請求項1に記載のキメラIgG Fc受容体。
- 前記細胞外ドメインは、CD16A切断部位を含む、請求項1~3のいずれか一項に記載のキメラIgG Fc受容体。
- 前記細胞内ドメインは、シグナル伝達ドメインを含む、請求項1~4のいずれか一項に記載のキメラIgG Fc受容体。
- 請求項1~5のいずれか一項に記載のキメラ受容体をコードする、ポリヌクレオチド。
- 請求項6に記載のポリヌクレオチドを含む、組換え細胞。
- 請求項1~5のいずれか一項に記載のIgG Fcキメラ受容体を発現する、組換え細胞。
- 前記組換え細胞は、ナチュラルキラー(NK)細胞である、請求項8に記載の組換え細胞。
- CD64をコードするポリヌクレオチドを含む、組換えナチュラルキラー(NK)細胞。
- CD64を発現するように遺伝子改変されたナチュラルキラー(NK)細胞を含む、組換え細胞。
- 腫瘍細胞を死滅させる方法であって、
前記腫瘍細胞を前記腫瘍細胞に特異的に結合する抗体と接触させること、および
組換え細胞が前記腫瘍細胞を死滅させるのに有効な条件下で、前記腫瘍細胞を請求項7~11のいずれか一項に記載の組換え細胞と接触させること、を含む、方法。 - 腫瘍を有する対象を治療する方法であって、
前記腫瘍の細胞に特異的に結合する抗体を前記対象に投与すること、および
組換え細胞が前記腫瘍細胞を死滅させるのに有効な条件下で、請求項7~11のいずれか一項に記載の組換え細胞を含む組成物を前記対象に投与すること、を含む、方法。 - 請求項7~11のいずれか一項に記載の組換え細胞、および
キメラ受容体に結合した抗体、を含む、組成物。 - 腫瘍を有する対象を治療する方法であって、
請求項14に記載の組成物を前記対象に投与することを含み、抗体は前記腫瘍細胞に特異的に結合する、方法。
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US11738050B2 (en) | 2019-02-01 | 2023-08-29 | Regents Of The University Of Minnesota | Compounds binding to fibroblast activation protein alpha |
EP3966316A4 (en) | 2019-05-10 | 2023-01-25 | The Regents of The University of California | MODIFIED PLURIPOTENT CELLS |
EP4041759A4 (en) * | 2019-10-07 | 2023-12-20 | Fate Therapeutics, Inc. | IMPROVED CHIMERIC ANTIGEN RECEPTOR FOR IMMUNE EFFECTOR CELL CULTURE AND USE THEREOF |
CA3154076A1 (en) * | 2019-10-15 | 2021-04-22 | Tobias Deuse | Transplanted cell protection via fc sequestration |
US20240042023A1 (en) * | 2020-12-22 | 2024-02-08 | Immunitybio, Inc. | Fc-Receptor CAR Constructs and Cells |
CN112725284A (zh) * | 2021-01-27 | 2021-04-30 | 河南省华隆生物技术有限公司 | 一种nk滋养层细胞及其应用 |
EP4304662A4 (en) * | 2021-03-08 | 2025-06-18 | The Regents of the University of California | Lentivirus protection via fc overexpression |
CN114853905B (zh) * | 2022-04-14 | 2022-11-22 | 呈诺再生医学科技(珠海横琴新区)有限公司 | 一种基因修饰nk细胞与抗体联合使用治疗肿瘤方案 |
CN114835820B (zh) * | 2022-04-14 | 2023-01-06 | 呈诺再生医学科技(珠海横琴新区)有限公司 | 用于基因改造的多能干细胞及、自然杀伤细胞的嵌合型Fc受体 |
CN114478806B (zh) * | 2022-04-14 | 2022-07-01 | 呈诺再生医学科技(北京)有限公司 | 一种提升免疫细胞杀伤活性的嵌合受体及其应用 |
CN117467619B (zh) * | 2023-12-27 | 2024-03-19 | 江苏柯菲平医药股份有限公司 | 一种可诱发自崩解型人工抗原呈递细胞及其制备方法和应用 |
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WO2019084388A1 (en) | 2019-05-02 |
AU2018355462A1 (en) | 2020-05-14 |
AU2022205180A1 (en) | 2022-09-22 |
JP2021500923A (ja) | 2021-01-14 |
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US20200283501A1 (en) | 2020-09-10 |
CN111556756A (zh) | 2020-08-18 |
EP3700542A4 (en) | 2020-12-09 |
US20240124550A1 (en) | 2024-04-18 |
EP3700542A1 (en) | 2020-09-02 |
AU2018355462B2 (en) | 2022-04-14 |
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