KR102647696B1 - Mage-a4 유래 펩티드를 인식하는 항원 결합성 단백질 - Google Patents
Mage-a4 유래 펩티드를 인식하는 항원 결합성 단백질 Download PDFInfo
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- KR102647696B1 KR102647696B1 KR1020197037248A KR20197037248A KR102647696B1 KR 102647696 B1 KR102647696 B1 KR 102647696B1 KR 1020197037248 A KR1020197037248 A KR 1020197037248A KR 20197037248 A KR20197037248 A KR 20197037248A KR 102647696 B1 KR102647696 B1 KR 102647696B1
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Abstract
(해결수단)MAGE-A4 유래 펩티드와 HLA-A2 복합체를 인식하는 항체를 구비한 암치료용 CAR-T세포이며, 상기 항체는, 배열번호36의 VH의 아미노산 배열과, 배열번호38의 VL의 아미노산 배열을 구비하는 암치료용 CAR-T세포에 의해 해결된다. 이때에 상기 항체는, 배열번호32의 아미노산 배열을 구비하는 것이 바람직하다.
Description
[도2]CAR의 구축방법을 설명하기 위한 유전자 배열 이미지를 나타내는 도면이다.
[도3](A), (B) 모두 픽업한 클론에 대해서, 복수의 항원에 대한 반응성을 ELISA를 사용해서 확인한 결과를 나타내는 막대 그래프이다.
[도4]MAGE#17에 대해서, KD값을 측정한 결과를 나타내는 그래프이다. (A)는 시간경과에 대한 검출감도의 동적변화를 측정한 그래프를, (B)는 그래프로부터 읽어낸 데이터에 의거하여 KD값을 계산한 결과를 나타내는 표를 각각 의미한다.
[도5]MAGE-A4 p230, CMV, DMSO를 펄스한 T2세포에 대하여, 항체 MAGE#17, #86, #209, #345 및 #672를 반응시켰을 때의 시프트량을 FACS로 조사한 결과를 나타내는 그래프(A) 및 막대 그래프(B)이다.
[도6]알라닌 치환한 펩티드를 펄스했을 때의 T2세포 표면 상의 HLA량을 FACS로 측정한 결과를 나타내는 그래프이다.
[도7]알라닌 치환한 펩티드를 T2세포에 펄스하고, MAGE#17을 반응시켜, 항체인식에 관여하는 아미노산을 조사한 결과를 나타내는 그래프이다.
[도8]리스크 펩티드를 T2세포에 펄스하고, T2세포 표면 상의 HLA량을 FACS로 측정한 결과를 나타내는 그래프이다.
[도9]리스크 펩티드를 T2세포에 펄스하고, MAGE#17을 반응시켜, 리스크 펩티드와의 반응성을 조사한 결과를 나타내는 그래프이다.
[도10]PBMC에 도입한 CAR(mRNA)이 발현되고 있는지 아닌지를 테트라머(tetramer) 염색으로 조사한 결과를 나타내는 도면이다.
[도11]mRNA를 도입한 CAR-T세포가 타겟 세포를 특이적으로 인식하고, IFNγ 생산을 증대시키는 것을 나타내는 그래프이다.
[도12]PBMC에 도입한 CAR유전자(레트로바이러스)가 발현되고 있는지 아닌지를 테트라머 염색으로 조사한 결과를 나타내는 도면이다.
[도13]레트로바이러스를 도입한 CAR-T세포가 타겟 세포를 특이적으로 인식하고, IFNγ 생산을 증대시키는 것을 나타내는 그래프이다.
[도14]MAGE#17 CAR을 도입한 T세포가, MAGE-A4 펩티드를 펄스한 T2세포와의 공배양에 의해 활성화한 것을 나타내는 그래프이다.
[도15]MAGE#17 CAR을 도입한 T세포가, A2양성 MAGE-A4양성세포와의 공배양에 의해 활성화한 것을 나타내는 그래프이다.
[도16]MAGE-A4 롱펩티드를 삽입한 항원제시세포와 CAR-T를 공배양함으로써 CAR-T의 인터페론 생산이 증대한 것을 나타내는 그래프이다.
[도17]MAGE-A4 펩티드를 펄스한 T2세포가, MAGE-A4 특이적인 세포상해활성을 가지는 것을 나타내는 그래프이다.
[도18]타겟 세포에 있어서, A2양성 MAGE양성세포에 특이적인 세포상해활성을 가지는 것을 나타내는 그래프이다.
[도19]수주한 CAR-T세포의 CAR양성률을 테트라머 염색으로 조사한 결과를 나타내는 도면이다.
[도20](A)A2양성 MAGE-A4양성종양(NW-MEL-38)에 대한 CAR-T세포의 효과 또는 (B)A2양성 MAGE-A4음성종양(HCT116)에 대한 CAR-T세포의 효과를 확인한 결과를 나타내는 그래프이다.
[도21]CAR zG의 유전자 배열 이미지를 나타내는 도면이다.
[도22]A2양성 MAGE-A4양성종양(NW-MEL-38)에 대하여, 세포내 도메인(ICD)이 다른 CAR-T세포를 투여했을 때의 효과를 확인한 결과를 나타내는 그래프이다. (A)종양지름, (B)체중을 각각 나타낸다. 그래프 중의 화살표는, 좌측이 방사선전신조사(TBI)의 처치일(3일째), 우측이 림프구 투여일(4일째)을 각각 나타낸다.
[도23]CAR비도입 CD8양성 T세포(NGMC:컨트롤), zG형 CAR도입 CD8양성 T세포(zG) 및 28z형 CAR도입 CD8양성 T세포(28z)의 CAR양성률을 테트라머 염색으로 조사한 결과를 나타내는 도면이다.
[도24]CAR-T세포가 타겟 세포를 특이적으로 인식하고, IFNγ 생산을 증대시키는지 아닌지를 조사한 결과를 나타내는 그래프이다.
[도25]CAR-T세포가 타겟 세포를 특이적으로 인식하고, IFNγ 생산을 증대시키는지 아닌지를 조사한 결과를 나타내는 그래프이다.
Claims (14)
- 이하의 (A) 및 (C)의 폴리펩티드를 포함하고, HLA-A2-MAGE-A4 복합체의 GVYDGREHTV 펩티드를 항원으로서 인식하는 항원 결합성 단백질:
(A)배열번호36의 VH(중쇄가변영역)의 아미노산 배열과, 배열번호38의 VL(경쇄가변영역)의 아미노산 배열을 포함하는 폴리펩티드;
(C)배열번호37의 sc(1개 쇄)의 아미노산 배열을 포함하고, 아미노 말단에서부터 순서대로 배열번호36, 배열번호37 및 배열번호38을 포함하는 폴리펩티드.
- 제1항에 있어서,
항원 결합성 단백질이, 1개 쇄 Fv(scFv)인 항원 결합성 단백질.
- 제1항 또는 제2항의 항원 결합성 단백질을 코드하는 핵산.
- 제3항의 핵산을 포함하는 벡터로서, 상기 항원 결합성 단백질이 발현 가능하게 되어 있는 벡터.
- 제1항 또는 제2항의 항원 결합성 단백질과 시그널 전달 단백질의 세포내 도메인을 포함하는 키메라 항원 수용체로서, 상기 항원 결합성 단백질이 상기 키메라 항원 수용체 아미노 말단측에 위치하여 세포외에 있고, 상기 세포내 도메인이 상기 키메라 항원 수용체의 카르복시 말단측에 위치하여 세포내에 있고, 상기 시그널 전달 단백질이 CD3zeta(CD3ζ)쇄 또는 공자극 분자CD(GITR) 중의 어느 하나인 키메라 항원 수용체.
- 제5항에 있어서,
CD28의 세포내 도메인 또는 GITR의 세포내 도메인 중의 어느 하나를 더 포함하는 키메라 항원 수용체.
- 제5항의 키메라 항원 수용체를 코드하는 핵산.
- 제6항의 키메라 항원 수용체를 코드하는 핵산.
- 제7항의 핵산을 포함하는 벡터로서, 키메라 항원 수용체가 발현 가능하게 되어 있는 벡터.
- 제8항의 핵산을 포함하는 벡터로서, 키메라 항원 수용체가 발현 가능하게 되어 있는 벡터.
- 제5항의 키메라 항원 수용체를 발현하는, 인체내의 세포를 제외한 세포.
- 제6항의 키메라 항원 수용체를 발현하는, 인체내의 세포를 제외한 세포.
- 제11항의 세포로서 인체내의 세포를 제외한 세포를 유효성분으로서 함유하는, 만성골수성 백혈병, 급성림프성 백혈병(ALL), 급성골수성 백혈병(AML)을 포함하는 조혈기종양, 위암, 대장암, 폐암, 유방암, 배(胚)세포암, 간암, 피부암, 방광암, 전립선암, 자궁암, 자궁경부암, 난소암, 중피종을 포함하는 고형암 중의 적어도 어느 하나의 치료용의 의약조성물.
- 제12항의 세포로서 인체내의 세포를 제외한 세포를 유효성분으로서 함유하는, 만성골수성 백혈병, 급성림프성 백혈병(ALL), 급성골수성 백혈병(AML)을 포함하는 조혈기종양, 위암, 대장암, 폐암, 유방암, 배(胚)세포암, 간암, 피부암, 방광암, 전립선암, 자궁암, 자궁경부암, 난소암, 중피종을 포함하는 고형암 중의 적어도 어느 하나의 치료용의 의약조성물.
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