JP2007126481A - T細胞の不応答性を調節する方法 - Google Patents
T細胞の不応答性を調節する方法 Download PDFInfo
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Abstract
【解決手段】臓器または骨髄移植および自己免疫疾患における抗原に対する免疫反応を阻害することが望ましい状況において治療的に有用なCD2表面受容体を介する不応答性T細胞の刺激を阻害する物質、および抗原に対する免疫反応を刺激するのに治療的に有用なCD2表面受容体を介してT細胞を刺激する物質とT細胞を接触させることによってT細胞の不応答性を逆転させる方法を開発する。
【選択図】なし
Description
CD2は、胸腺細胞と成熟T細胞で発現される相対分子質量が50,000〜58,000の糖タンパク質である。CD2はヒツジの赤血球に結合し、これはT細胞Eロゼット形成の現象をもたらす特性である。T細胞のCD2とAPCのLFA−3との間の相互作用によって、T細胞の抗原認識が容易になり、その結果、抗原特異的T細胞応答が刺激される(例えば、Bierer、B.ら、J.Exp.Med.、168巻、1145頁、1988年;Moingeon、P.ら、Nature、339巻、312頁、1989年;Koyasu、S.らProc.Natl.Acad.Sci. USA、87巻、2603頁、1990年;Selvaraj、P.ら、Nature、326巻、400頁、1987年;およびBierer、B.ら、J.Immunol.、140巻、3358頁、1988年参照)。
この作用は、CD2/LFA−3相互作用によって仲介される、T細胞とAPC間の接着の強化に少なくとも一部は関与している。さらに、APCなしで抗CD2抗体類の適当な組合わせを用いて、in vitroでT細胞を刺激してT細胞を増殖させIL−2を分泌させることができることが実証されている[例えば、Meuer、S.ら、Cell、36巻、897頁、1984年;Feterson、A.ら、Nature、329巻、842頁、1987年;Yang、Y.S.ら、J.Immunol.、137巻、1097頁、1986年;およびW.Knappら編集(Oxford、1989年)「Leucocyte Typing IV, White cell differentiation antigens」270頁のS.C.Meuerの報告参照]。例えば、T細胞は、抗CD2抗体T11.3と、他の2種の抗CD2抗体のうちの1種すなわちT11.2またはT11.1との組合わせを用いて活性化することができる。T11.3エピトープは「ネオ−エピトープ(neo-epitope)」であり、静止T細胞のCD2上には現れず、T細胞が活性化されるとCD2上には現れる(Meuer、S.ら、Cell、36巻、897頁、1984年)。CD2を用いるin vitro培養試験は、この表面受容体がT細胞−APCの接着とT細胞の活性化に関与していることを示したが、CD2のどんな生理学的役割が、抗原に対するT細胞の応答に役立っているかは、これらの試験からは分からない。
I.T細胞の不応答性を維持する方法
A.阻止抗体類
抗CD2リガンド抗体類としては、抗LFA−3抗体類、抗CD48抗体類および抗CD59抗体類がある。CD2とLFA−3の相互作用を実質的に遮断または阻害するために使用できる抗LFA−3抗体類は当該技術分野で公知である(例えばTS2/9がある。例えばSanchez-Madrid、F.、Proc.Natl.Acad.Sci. USA、79巻、7489頁、1982年参照)。抗CD48阻止抗体類(例えばSandrin、M.S.、J.Immunol.、151巻、4606頁、1993年;およびKato、K.ら、Eur.J.Immunol.、23巻、1412頁、1993年参照)および抗CD59阻止抗体類(例えばDeckert、M.ら、Eur.J.Immunol.、22巻、2943〜2947頁、1992年参照)も当該技術分野で公知である。
B.可溶型の受容体類とリガンド類
C.ペプチド類と低分子類
D.細胞内CD2阻害因子類
E.T11.3ネオ−エピトープの露出の阻害
F.CD2阻害因子(物質)の使用
II.T細胞不応答性を誘導し維持する方法
III.T細胞の応答性を復活する方法
A.CD2リガンド発現細胞
B.可溶性の刺激型のCD2リガンド
C.刺激型の抗CD2抗体
D.細胞内CD2刺激物質
E.不応答性T細胞のプライミング
F.CD2刺激物質の使用
IV.抗原に対するT細胞の応答を回復させる方法
実施例において、アロ抗原のHLA−DR7に特異的な2種類のヘルパーT細胞クローン(TC−1、TC−2)を使用した。これらのクローンは、CD4+CD8−CD28+であり、標準的方法(J.Goronzyら(1987)の、Methods Enzymol.150:333に記載)を用いて作製した。ある実験では、これらT細胞クローンを、トランスフェクションによってHLA−DR7および/または他の細胞表面分子を発現しているNIH−3T3またはCOS細胞で刺激した。本明細書では、これらのトランスフェクトされた細胞を、人工的アロ抗原提示細胞(アロ−APC)と呼ぶ。トランスフェクション前には、これら細胞はT細胞の増殖やIL−2の産生を刺激することはできない。トランスフェクタントは以下のようにその表面に発現している分子によって表され、HLA−DR7のみを発現している細胞はt−DR7と、HLA−DR7とB7−1の両方を発現している細胞はt−DR7/B7−1と、また、HLA−DR7とICAM−1を発現している細胞はt−DR7/ICAM−1などというように呼ばれる。他の実験では、HLA−DR7、B7−1(CD80)、B7−2、ICAM−1(CD54)、およびLFA−3(CD58)を一緒に発現するHLA−DR7ホモ接合体のリンパ芽球様細胞系でT細胞クローンを刺激する。この細胞系はLBL−DR7と呼ばれる。T細胞の応答は、標準的技術によってT細胞の増殖またはIL−2の産生を測定することによってアッセイされた。この2クローンの結果は本質的に同等であった。TC−1の結果のみを示す。
実施例2:B7−1またはICAM−1によるT細胞の刺激はT細胞の不応答性を逆転させない
実施例3:CD2/LFA−3相互作用のブロックによるT細胞不応答性の維持
実施例4:LFA−3を用いる刺激によるT細胞の不応答性の逆転
実施例5:IL−2中の培養によるアネルギー化T細胞上のCD2ネオ−エピトープT11.3の再発現
実施例6:T細胞のアネルギーの逆転におけるCD2とJAK−3キナーゼとの関連
等価物
Claims (85)
- CD2表面受容体を介するT細胞の刺激を阻害する物質とT細胞を接触させることを特徴とする抗原に対するT細胞の不応答性を維持する方法。
- CD2表面受容体を介するT細胞刺激を阻害する物質がCD2表面受容体とCD2リガンドの相互作用をブロックするものであることを特徴とする請求項1に記載の方法。
- CD2リガンドがLFA−3である請求項2に記載の方法。
- CD2表面受容体とCD2リガンドとの相互作用をブロックする物質が抗CD2抗体および抗CD2リガンド抗体からなる群から選ばれる請求項2に記載の方法。
- CD2表面受容体とCD2リガンドとの相互作用をブロックする物質が可溶性のCD2蛋白および可溶性のCD2リガンド蛋白からなる群から選ばれる請求項2に記載の方法。
- CD2表面受容体を介するT細胞の活性化を阻害する物質が細胞内で作用し、CD2表面受容体を介してT細胞中に誘発される細胞内シグナルを阻害するものである請求項1に記載の方法。
- 物質が細胞内で作用し、チロシンキナーゼ、JAK−3の活性を阻害するものである請求項6の方法。
- CD2表面受容体を介するT細胞活性を阻害する物質を対象に投与することを特徴とする対象の抗原に対するT細胞の不応答性を維持する方法。
- CD2表面受容体を介するT細胞刺激を阻害する物質がCD2表面受容体とCD2リガンドとの相互作用をブロックするものである請求項8に記載の方法。
- CD2リガンドがLFA−3である請求項9に記載の方法。
- CD2表面受容体とCD2リガンドとの相互作用をブロックする物質が抗CD2抗体および抗CD2リガンド抗体からなる群から選ばれる請求項9に記載の方法。
- CD2表面受容体とCD2リガンドとの相互作用をブロックする物質が可溶性のCD2蛋白および可溶性のCD2リガンド蛋白からなる群から選ばれる請求項9に記載の方法。
- CD2表面受容体を介するT細胞刺激を阻害するCD2表面受容体を介してT細胞中に誘発される細胞内シグナルを阻害するものである請求項8に記載の方法。
- 物質が細胞内で作用し、チロシンキナーゼ、JAK−3の活性を阻害するものである請求項13に記載の方法。
- さらにT細胞のCD2表面受容体上のT11.3ネオ−エピトープの露出を阻害する第二物質を対象に投与することを含む請求項8に記載の方法。
- 第二物質がT細胞成長因子の産生または機能を阻害する請求項15に記載の方法。
- T細胞成長因子がIL−2である請求項16に記載の方法。
- 対象がアロジェネイック(同種異系)またはゼノジェネイック(異種)な細胞のレシピエントであり、抗原が同種異系または異種細胞表面上に存在している請求項8に記載の方法。
- 対象が、自己免疫疾患または不適切であるかまたは異常な免疫応答が関与している障害に罹患している請求項8に記載の方法。
- CD28またはCTLA4表面受容体を介するT細胞刺激を阻害する第一物質と、CD2表面受容体を介するT細胞刺激を阻害する第二物質を対象に投与することを特徴とする、対象の抗原に対するT細胞の不応答性を誘導し、維持する方法。
- 第一物質がCD28またはCTLA4表面受容体とCD28またはCTLA4リガンドとの相互作用をブロックするものである請求項20に記載の方法。
- CD28またはCTLA4リガンドがB7−1およびB7−2からなる群から選ばれる請求項21に記載の方法。
- 第一物質が抗CD28抗体、抗CTLA4抗体、抗B7−1抗体、および抗B7−2抗体からなる群から選ばれる請求項21に記載の方法。
- 第一物質が可溶性のCD28蛋白、可溶性のCTLA4蛋白、可溶性のB7−1蛋白、および可溶性のB7−2蛋白からなる群から選ばれる請求項21に記載の方法。
- 第一物質がCTLA4Ig融合蛋白である請求項24に記載の方法。
- CD2表面受容体を介するT細胞刺激を阻害する第二物質がCD2表面受容体とCD2リガンドとの相互作用をブロックするものである請求項20に記載の方法。
- CD2リガンドがLFA−3である請求項26に記載の方法。
- 第二物質が抗CD2抗体および抗CD2リガンド抗体からなる群から選ばれる請求項26に記載の方法。
- 第二物質が可溶性のCD2蛋白および可溶性のCD2リガンド蛋白からなる群から選ばれる請求項26に記載の方法。
- 第二物質がCD2表面受容体を介してT細胞中に誘発される細胞内シグナルを阻害するものである請求項20に記載の方法。
- 第二物質が細胞内で作用し、チロシンキナーゼ、JAK−3の活性を阻害するものである請求項30の方法。
- さらに、T細胞のCD2表面受容体上のT11.3ネオ−エピトープの露出を阻害する第三物質を対象に投与することを含む請求項20に記載の方法。
- 第三物質がT細胞成長因子の産生または機能を阻害するものである請求項32に記載の方法。
- T細胞成長因子がIL−2である請求項33に記載の方法。
- 抗原が同種異系または異種細胞表面上に存在しており、対象が同種または異種細胞のレシピエントである請求項20に記載の方法。
- 抗原が自己抗原である請求項20に記載の方法。
- 抗原存在下で、CD2表面受容体を介してT細胞を刺激する物質とT細胞を接触させることを特徴とする抗原に対して不応答性のT細胞の抗原に対する不応答性を回復させる方法。
- CD2表面受容体を介してT細胞を刺激する物質がCD2リガンドである請求項37に記載の方法。
- CD2リガンドが抗原を発現している細胞表面上に存在する請求項38に記載の方法。
- CD2リガンドがLFA−3である請求項39に記載の方法。
- 細胞表面上にCD2リガンドを発現するのに適した形のCD2リガンドをコードする核酸分子を細胞中に導入することによって、CD2リガンドを細胞表面上に発現させる請求項39に記載の方法。
- 細胞が腫瘍細胞である請求項41に記載の方法。
- CD2表面受容体を介してT細胞を刺激する物質が少なくとも1つの抗CD2抗体である請求項37に記載の方法。
- 少なくとも1つの抗CD2抗体がCD2表面受容体上のT11.3ネオ−エピトープに結合する請求項43に記載の方法。
- さらに、T細胞のCD2表面受容体上のT11.3ネオ−エピトープの露出を刺激する第二物質とT細胞を接触させることを特徴とする請求項37に記載の方法。
- 第二物質がIL−2またはIL−4である請求項45に記載の方法。
- T細胞が第一物質と接触する前にIL−2またはIL−4と接触する請求項46に記載の方法。
- CD2表面受容体を介してT細胞を刺激する第一物質、およびCD28またはCTLA4表面受容体を介してT細胞を刺激する第二物質を、抗原の存在下でT細胞と接触させることを特徴とする、抗原に対して不応答性のT細胞の抗原に対する応答を回復させる方法。
- CD2表面受容体を介してT細胞を刺激する第一物質がCD2リガンドである請求項48に記載の方法。
- CD2リガンドが抗原を発現している細胞表面上にある請求項49に記載の方法。
- CD2リガンドがLFA−3である請求項50に記載の方法。
- 細胞表面上にCD2リガンドを発現するのに適した形のCD2リガンドをコードする核酸分子を細胞中に導入することによって、CD2リガンドを細胞表面上に発現させる請求項50に記載の方法。
- 細胞が腫瘍細胞である請求項52に記載の方法。
- CD2表面受容体を介してT細胞を刺激する第一物質が少なくとも1つの抗CD2抗体である請求項48に記載の方法。
- 少なくとも1つの抗CD2抗体がCD2表面受容体上のT11.3ネオ−エピトープと結合する請求項54に記載の方法。
- CD28またはCTLA4表面受容体を介してT細胞を刺激する第二物質がCD28またはCTLA4リガンドである請求項48に記載の方法。
- CD28またはCTLA4リガンドが抗原を発現している細胞表面上に存在する請求項56に記載の方法。
- CD28またはCTLA4リガンドがB7−1またはB7−2である請求項56に記載の方法。
- 細胞表面上にCD28またはCTLA4リガンドを発現するのに適した形のCD28またはCTLA4リガンドをコードする核酸分子を細胞中に導入することによって、CD28またはCTLA4リガンドを細胞表面上に発現させる請求項57に記載の方法。
- 細胞が腫瘍細胞である請求項59に記載の方法。
- さらに、CD2表面受容体を介する刺激に対してT細胞をプライムする第三物質とT細胞を接触させることを特徴とする請求項48に記載の方法。
- CD2表面受容体を介する刺激に対してT細胞をプライムする第三物質がT細胞のCD2表面受容体上のT11.3ネオ−エピトープの露出を刺激するものである請求項61に記載の方法。
- 第三物質がIL−2またはIL−4である請求項62に記載の方法。
- T細胞を、第一物質と接触させる前に、IL−2またはIL−4と接触させる請求項63に記載の方法。
- CD2リガンドとCD28またはCTLA4リガンドを発現するように腫瘍細胞を修飾することを特徴とする腫瘍を有する対象のT細胞の腫瘍細胞に対する応答を刺激する方法。
- 腫瘍細胞表面上にCD2リガンドおよびCD28もしくはCTLA4リガンドを発現するのに適した形のCD2リガンドおよびCD28もしくはCTLA4リガンドをコードする少なくとも1つの核酸分子を腫瘍細胞中に導入することによって腫瘍細胞を修飾し、CD2リガンドおよびCD28あるいはCTLA4リガンドを発現させる請求項65に記載の方法。
- 腫瘍細胞を対象から得、ex vivoで修飾して修飾された腫瘍細胞を形成し、さらに修飾された腫瘍細胞を対象に投与することを含む請求項66に記載の方法。
- 腫瘍細胞の第一試料を、CD2リガンドを発現させるように修飾して、修飾された腫瘍細胞の第一試料を形成させ、腫瘍細胞の第二試料を、CD28またはCTLA4リガンドを発現させるように修飾して、修飾された腫瘍細胞の第二試料を形成させる請求項66に記載の方法。
- 修飾された腫瘍細胞の第一および第二試料を同時に対象に投与する請求項68に記載の方法。
- 修飾された腫瘍細胞の第一および第二試料を同時に対象に投与する請求項66に記載の方法。
- さらに、T細胞のCD2表面受容体上のT11.3ネオ−エピトープの露出を刺激する物質と対象のT細胞を接触させることを含む請求項65に記載の方法。
- 該物質がIL−2またはIL−4である請求項71に記載の方法。
- T細胞を対象から得、ex vivoでIL−2またはIL−4と接触させ、対象にT細胞を再投与することを含む請求項72に記載の方法。
- 修飾前にはCD2リガンドを発現しておらず、修飾されてCD2リガンドを発現する腫瘍細胞。
- CD2リガンドがLFA−3である請求項74に記載の腫瘍細胞。
- 修飾前にはCD2リガンドまたは少なくとも1つのCD28またはCTLA4リガンドを発現しておらず、修飾されてCD2リガンドまたは少なくとも1つのCD28またはCTLA4リガンドを発現する腫瘍細胞。
- CD2リガンドがLFA−3であり、少なくとも1つのCD28またはCTLA4リガンドがB7−1またはB7−2である請求項76に記載の方法。
- CD2表面受容体を介するT細胞の刺激を阻害する物質を対象に投与することを含む、対象の同種または異種細胞に対するT細胞の不応答性を維持する方法。
- CD2表面受容体を介するT細胞刺激を阻害する物質がCD2表面受容体とCD2リガンドの相互作用をブロックするものである請求項78に記載の方法。
- CD2リガンドがLFA−3である請求項79に記載の方法。
- CD2表面受容体とCD2リガンドとの相互作用をブロックする物質が抗CD2抗体および抗CD2リガンド抗体からなる群から選ばれる請求項79に記載の方法。
- CD2表面受容体とCD2リガンドの相互作用をブロックする物質が可溶性のCD2蛋白および可溶性のCD2リガンド蛋白からなる群から選ばれる請求項79に記載の方法。
- CD2表面受容体を介するT細胞活性化を阻害する物質が細胞内で作用することにより、CD2表面受容体を介してT細胞中に誘発される細胞内シグナルを阻害する請求項78に記載の方法。
- 対象が骨髄移植のレシピエントである請求項78に記載の方法。
- さらに、レシピエント中に移植される前に、CD2表面受容体を介するT細胞の刺激を阻害する物質と骨髄細胞を接触させることを特徴とする請求項84に記載の方法。
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US20793294A | 1994-03-08 | 1994-03-08 |
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JP7523630A Division JPH09510211A (ja) | 1994-03-08 | 1995-03-08 | T細胞の不応答性を調節する方法 |
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JP2007028947A Pending JP2007126481A (ja) | 1994-03-08 | 2007-02-08 | T細胞の不応答性を調節する方法 |
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EP (2) | EP0749323B1 (ja) |
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AU (1) | AU709711B2 (ja) |
CA (1) | CA2185027A1 (ja) |
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DK (1) | DK0749323T3 (ja) |
ES (1) | ES2153895T3 (ja) |
GR (1) | GR3035158T3 (ja) |
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ATE354655T1 (de) | 1999-08-24 | 2007-03-15 | Medarex Inc | Humane antikörper gegen ctla-4 und deren verwendungen |
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CA2454618C (en) | 2001-07-24 | 2012-04-03 | Biogen Idec Ma, Inc. | Methods for treating or preventing sclerotic disorders using cd2-binding agents |
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US9114100B2 (en) | 2010-05-17 | 2015-08-25 | Duke University | Methods of treatment using ex vivo expansion of cord blood T cells |
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EP4089167A1 (en) | 2012-02-09 | 2022-11-16 | Baylor College of Medicine | Pepmixes to generate multiviral ctls with broad specificity |
CN113791213A (zh) | 2015-09-18 | 2021-12-14 | 贝勒医学院 | 来自病原体的免疫原性抗原鉴定以及与临床效力的相关性 |
SG11201803009VA (en) | 2015-11-02 | 2018-05-30 | Five Prime Therapeutics Inc | Cd80 extracellular domain polypeptides and their use in cancer treatment |
KR20190139216A (ko) | 2017-04-28 | 2019-12-17 | 파이브 프라임 테라퓨틱스, 인크. | Cd80 세포외 도메인 폴리펩티드를 이용한 치료 방법 |
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- 1995-03-08 DE DE69519513T patent/DE69519513T2/de not_active Expired - Fee Related
- 1995-03-08 EP EP95914695A patent/EP0749323B1/en not_active Expired - Lifetime
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JPWO2009142186A1 (ja) * | 2008-05-20 | 2011-09-29 | 株式会社カネカ | 細胞障害性組成物 |
Also Published As
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GR3035158T3 (en) | 2001-04-30 |
DK0749323T3 (da) | 2001-02-05 |
EP0749323A1 (en) | 1996-12-27 |
DE69519513D1 (de) | 2001-01-04 |
PT749323E (pt) | 2001-05-31 |
US20020051784A1 (en) | 2002-05-02 |
EP1025856A2 (en) | 2000-08-09 |
HK1016019A1 (en) | 1999-10-22 |
US6451305B1 (en) | 2002-09-17 |
AU709711B2 (en) | 1999-09-02 |
ATE197766T1 (de) | 2000-12-15 |
EP0749323B1 (en) | 2000-11-29 |
ES2153895T3 (es) | 2001-03-16 |
JPH09510211A (ja) | 1997-10-14 |
WO1995024217A1 (en) | 1995-09-14 |
DE69519513T2 (de) | 2001-07-19 |
AU2157995A (en) | 1995-09-25 |
CA2185027A1 (en) | 1995-09-14 |
EP1025856A3 (en) | 2002-10-16 |
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