KR102703974B1 - 이중특이적 t 세포 활성화 항원 결합 분자 - Google Patents
이중특이적 t 세포 활성화 항원 결합 분자 Download PDFInfo
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- KR102703974B1 KR102703974B1 KR1020227020721A KR20227020721A KR102703974B1 KR 102703974 B1 KR102703974 B1 KR 102703974B1 KR 1020227020721 A KR1020227020721 A KR 1020227020721A KR 20227020721 A KR20227020721 A KR 20227020721A KR 102703974 B1 KR102703974 B1 KR 102703974B1
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Abstract
Description
도 2는 실시예 1에서 제조된 TCB를 도시한다. (A) 전하 변형(CD3 결합제에서 CH1/CL 교환)이 없는 "도립된 2+1 IgG 교차Fab", (B) 전하 변형(CD3 결합제에서 VH/VL 교환, CD20 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K)이 있는 "도립된 2+1 IgG 교차Fab", (C) 전하 변형(CD3 결합제에서 VH/VL 교환, CD20 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K)이 있는 "2+1 IgG 교차Fab", (D) 전하 변형(CD3 결합제에서 VH/VL 교환)이 없는 "도립된 2+1 IgG 교차Fab", (E) 전하 변형(CD3 결합제에서 VH-CH1/VL-CL 교환)이 없는 "도립된 2+1 IgG 교차Fab", (F) 전하 변형(CD20 결합제에서 VH/VL 교환, CD3 결합제에서 전하 변형, EE = 147E, 213E; KK = 123K, 124K)이 있는 "도립된 2+1 IgG 교차Fab", (G) Fc 영역에서 전하 변형 및 DDKK 돌연변이(CD3 결합제에서 VH/VL 교환, CD20 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K)이 있는 "도립된 2+1 IgG 교차Fab", (H) 전하 변형(CD3 결합제에서 VH/VL 교환, CD20 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K)이 있는 "1+1 교차Mab", (I) 전하 변형(CD3 결합제에서 VH/VL 교환, CD20 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K, 상이한 CD20 결합제)이 있는 "1+1 교차Mab", (J) 전하 변형 213E, 123R(CD3 결합제에서 VH/VL 교환, CD20 결합제에서 전하 변형, E = 213E; R = 123R)이 있는 "도립된 2+1 IgG 교차Fab", (K) 전하 변형(CD3 결합제에서 VH/VL 교환 및 전하 변형)이 있는 "도립된 2+1 IgG 교차Fab".
도 3은 (A 내지 I, N 및 O) 실시예 1에서 제조(최종 정제 준비)된 TCB의 CE-SES 분석을 도시한다. (A) 도 2에 나타낸 분자 "A"의 전기영동도, (B) 도 2에 나타낸 분자 "B"의 전기영동도, (C) 도 2에 나타낸 분자 "C"의 전기영동도, (D) 도 2에 나타낸 분자 "D"의 전기영동도, (E) 도 2에 나타낸 분자 "E"의 전기영동도, (F) 도 2에 나타낸 분자 "F"의 전기영동도, (G) 도 2에 나타낸 분자 "G"의 전기영동도, (H) 도 2에 나타낸 분자 "H"의 전기영동도, (I) 도 2에 나타낸 분자 "I"의 전기영동도, (N) 도 2에 나타낸 분자 "J"의 전기영동도, (O) 도 2에 나타낸 분자 "K"의 전기영동도. 레인 A = 비환원됨, 레인 B = 환원됨. (J 내지 L, P 및 Q) 제 1 정제 단계(단백질 A 친화성 크로마토그래피) 후 실시예 1에서 제조된 TCB의 SDS-PAGE 분석. (J) 4 내지 12% 비스-트리스 SDS-PAGE, 비환원됨; 레인 1 = 마커(마크(Mark) 12, 비염색된 표준물, 인비트로겐(Invitrogen)); 레인 2 내지 11 = 분자 B의 단백질 A 친화성 크로마토그래피로부터의 분획, (K) 3 내지 8% 트리스-아세테이트 SDS-PAGE, 비환원됨; 레인 1 = 마커(하이마크(HiMark), 인비트로겐); 레인 2 내지 12 = 분자 C의 단백질 A 친화성 크로마토그래피로부터의 분획, (L) 4 내지 12% 비스-트리스 SDS-PAGE, 비환원됨; 레인 1 = 마커(마크 12, 비염색된 표준물, 인비트로겐); 레인 2 내지 14 = 분자 D의 단백질 A 친화성 크로마토그래피로부터의 분획, (P) 4 내지 12% 비스-트리스 SDS-PAGE, 비환원됨; 레인 1 = 마커(마크 12, 인비트로겐); 레인 2 내지 10 = 분자 J의 단백질 A 친화성 크로마토그래피로부터의 분획, (Q) 4 내지 12% 비스-트리스 SDS-PAGE, 비환원됨; 레인 1 = 마커(마크 12, 인비트로겐); 레인 2 내지 12 = 분자 K의 단백질 A 친화성 크로마토그래피로부터의 분획. (M) 실시예 1(분자 A(제 1 SEC 단계), B 및 D, 나타낸 바와 같음)에서 제조된 TCB의 제조용 크기 배제 크로마토그래피(SEC; 제 1 정제 단계).
도 4는 전하 변형(전하 잔기)이 있거나 없는(실시예 1 참조) 항-CD3/항-CD20 T 세포 이중특이적(TCB) 항체(CD20 TCB)의 CD3 및 CD20 결합을 도시한다.
도 5는 인간 PBMC로 22 시간 항온처리시 전하 변형(전하 잔기)이 있거나 없는(실시예 1 참조) 항-CD3/항-CD20 T 세포 이중특이적(TCB) 항체(CD20 TCB)에 의해 유도된 종양 세포 용해를 도시한다.
도 6은 전하 변형(전하 잔기)이 있거나 없는(실시예 1 참조) 항-CD3/항-CD20 T 세포 이중특이적(TCB) 항체(CD20 TCB)에 의해 유도된 CD20-발현 종양 표적 세포(Nalm-6)의 T 세포-매개된 사멸시 CD8+ T 세포(A) 또는 CD4+ T 세포(B)의 활성화를 도시한다.
도 7은 전하 변형(전하 잔기)이 있거나 없는(실시예 1 참조) 항-CD3/항-CD20 T 세포 이중특이적(TCB) 항체(CD20 TCB)에 의해 유도된 CD20-발현 종양 표적 세포(Z-138)의 T 세포-매개된 사멸시 CD8+ T 세포(A) 또는 CD4+ T 세포(B)의 활성화를 도시한다.
도 8은 전하 변형(전하 잔기)이 있거나 없는(22 시간 분석; 실시예 1 참조) 항-CD3/항-CD20 T 세포 이중특이적(TCB) 항체(CD20 TCB)로 항온처리시 건강한 인간 전혈에서 세포 감소를 도시한다.
도 9는 전하 변형(전하 잔기)이 있거나 없는(실시예 1 참조) 항-CD3/항-CD20 T 세포 이중특이적(TCB) 항체(CD20 TCB)에 의해 유도된 건강한 인간 전혈에서 CD20-발현 B 세포의 T 세포-매개된 사멸시 CD8+ T 세포(A) 또는 CD4+ T 세포(B)의 활성화를 도시한다.
도 10은 인간 CD20-(A) 및 CD3-발현(B) 표적 세포에 대한 항-CD20/항-CD3 TCB(도 2에서 나타낸 분자 "B")의 결합을 도시한다.
도 11은 인간 및 시노몰구스 원숭이 CD20- 및 CD3-발현 표적 세포에 대한 항-CD20/항-CD3 TCB(도 2에서 나타낸 분자 "B")의 결합을 도시한다. (A) B 세포, (B) CD4 T 세포, (C) CD8 T 세포.
도 12는 상이한 항-CD20/항-CD3 TCB 항체 포맷에 의해 매개된 종양 세포 용해를 도시한다.
도 13은 상이한 항-CD20/항-CD3 TCB 항체 포맷에 의해 매개된 종양 세포 용해 및 이후 T 세포 활성화를 도시한다. (A 내지 C) 3개의 상이한 인간 공여자로부터 PBMC 효과기 세포에 의한 Z138 종양 표적 세포의 용해. (D) 나타낸 바와 같은 DLBCL 종양 세포주의 패널의 용해.
도 14는 인간 전혈에서 상이한 항-CD20/항-CD3 TCB 항체 포맷에 의해 매개된 B 세포 고갈을 도시한다.
도 15는 주르카트(Jurkat)-NFAT 리포터 분석을 사용하여 CD3 다운스트림 신호전달의 강도의 정량화에 의해 추정된, 상이한 항-CD20/항-CD3 TCB 항체 포맷에 의한 T 세포의 활성화를 도시한다.
도 16은 NOG 마우스의 희소 샘플링 데이타로부터 항-CD20/항-CD3 TCB 항체(도 2에 나타낸 분자 "B")의 0.5 mg/kg i.v.(정맥내) 볼루스 투여의 약동학적 매개변수를 도시한다.
도 17은 완전 인간화된 NOG 마우스에서 항-CD20/항-CD3 TCB 항체(도 2에 나타낸 분자 "B")의 B 세포 고갈 활성을 추정하기 위한 연구의 도시적 표시를 도시한다
도 18은 (B) 항-CD20/항-CD3 TCB 항체(도 2에 나타낸 분자 "B") 또는 (A) 비히클 대조군으로 처리된 완전 인간화된 NOG 마우스의 혈액 중에 B 세포 및 T 세포 빈도의 동역학을 도시한다. D0, D7: 치료 주사 일수.
도 19는 완전 인간화된 마우스에서 비히클(흑색 막대) 또는 항-CD20/항-CD3 TCB 항체(도 2에 나타낸 분자 "B")(백색 막대) 주사 후 3일(D3) 및 10일(D10)에 말초 T 세포에서 상이한 표면 마커 발현의 분석을 도시한다.
도 20은 연구 종결시(제 1 치료제 주사 수 D10) 비히클(흑색 막대) 또는 항-CD20/항-CD3 TCB 항체(도 2에 나타낸 분자 "B")(백색 막대)-처리된 완전 인간화된 마우스의 비장에서 B 세포 빈도(A), T 세포 빈도(B) 및 T 세포에서 표면 마커 발현(C)의 분석을 도시한다.
도 21은 huPBMC 트랜스퍼를 갖는 NOG 마우스의 WSU-DLCL2 모델에서 항-CD20/항-CD3 TCB 항체(도 2에 나타낸 분자 "B")(0.5 mg/kg, 주 1회)의 항-종양 활성을 도시한다.
도 22는 실시예 2에서 제조된 "도립된 2+1 IgG 교차Fab" 분자를 도시한다. (1) 전하 변형이 없는 분자, (2) BCMA에 특이적으로 결합하는 Fab 분자의 CH1 및 CL 도메인에 전하 변형이 있는 분자(EE = 147E, 213E; KK = 123K, 124K).
도 23은 실시예 2에서 사용된 "도립된 2+1 IgG 교차Fab" 분자(레인 A = 비환원됨, 레인 B = 환원됨, 레인 A에 대한 피크 표)의 CE-SDS 분석을 도시한다. 상이한 정제 방법[단백질 A 친화성 크로마토그래피(PA), 크기 배제 크로마토그래피(SEC), 양이온 교환 크로마토그래피(cIEX), 및 최종 크기 배제 크로마토그래피 단계(re-SEC)]은 전하 변형이 없는 분자(83A10-TCB) 및 전하 변형이 있는 분자(83A10-TCBcv)에 적용된다.
도 24는 단백질 A 친화성 크로마토그래피(PA) 및 크기 배제 크로마토그래피(SEC) 정제 단계 후 헤드-투-헤드(head-to-head: H2H) 비교에서, 실시예 2에 사용된 "도립된 2+1 IgG 교차Fab" 분자의 CE-SDS 분석(레인 A = 비환원됨, 레인 B = 환원됨, 레인 A에 대한 피크 표)을 도시한다.
도 25는 항-BCMA/항-CD3 T 세포 이중특이적 항체와 BCMA-양성 다발성 골수종 세포주 결합의 유동 세포계측법 분석을 도시한다. (A) H929 세포 및 MKN45 세포에서 83A10-TCB, (B) H929 세포 및 MKN45 세포에서 83A10-TCBcv, (C) H929 세포에서 83A10-TCB 및 83A10-TCBcv의 비교.
도 26은 LDH 방출에 의해 측정된 항-BCMA/항-CD3 TCB 항체((A) 83A10-TCB, (B) 83A10-TCBcv)에 의한 BCMA-양성 H929 골수 세포의 사멸을 도시한다.
도 27은 실시예 3에서 제조된 TCB를 도시한다. (A) 전하 변형(CD3 결합제에서 VH/VL 교환, Her2 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K)이 있는 "도립된 2+1 IgG 교차Fab", (B) 전하 변형이 있는 "2+1 IgG 교차Fab"(CD3 결합제에서 VH/VL 교환, Her3 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K).
도 28은 실시예 3에서 제조된(최종 정제 준비) TCB의 CE-SDS 분석을 도시한다. (A) 도 27에 나타낸 Her2 TCB의 전기영동도, (B) 도 27에 나타낸 Her3 TCB의 전기영동도. 레인 A = 비환원됨, 레인 B = 환원됨.
도 29는 FACS에 의해 측정된, Her2 TCB(A) 및 Her3 TCB(B)와 세포의 결합을 도시한다. 유동 세포계측법으로 측정된, Her2 TCB 분자와 주르카트 세포(좌측)에서 인간 CD3 또는 KPL-4 세포(우측)에서 인간 Her2(A) 또는 Her3(B)과 결합하기 위한 중간 형광 강도. SD를 포함하여 3회 반복 검정에 기초하여 중간 형광 값이 도시된다.
도 30은 Her3 TCB에 의한 T 세포 활성화를 도시한다. 인간 PBMC 효과기 세포, KPL-4 표적 세포의 공동 항온처리 및 Her3 TCB의 농도 증가시, CD69 양성 CD8 T 세포의 퍼센트를 48시간 후 FACS로 측정하였다. SD를 포함하여 3회 반복 검정으로 나타내었다.
도 31은 발광에 의해 측정된, 5시간 후 CD3을 통한 주르카트 세포의 활성화를 도시한다. KPL4 종양 세포와 함께 주르카트-NFAT 리포터 세포(E:T 5:1(A) 또는 2.5:1(B))의 항온처리 및 Her2 TCB(A) 또는 Her3 TCB(B)의 농도 증가시, 주르카트의 활성화를 5시간 후 상대적인 발광 신호(RLU)에 의해 측정하였다. EC50 값을 그래프 패드 프리즘(Graph Pad Prism)으로 계산하였다(34.4 pM(A) 및 22 pM(B)). 3회 반복 검정으로 평균 값을 도시하고, 오차 막대는 SD를 나타낸다.
도 32는 (A 및 B) 25시간(A) 또는 46 시간(B) 동안 Her2-양성 KPL4, N87, T47D 또는 MDA-MB-231 표적 세포를 인간 PBMC 효과기 세포(E:T 10:1)와 함께 항온처리 및 Her2 TCB 분자의 농도 증가시, LDH 방출에 의해 측정된, 종양 세포 용해율을 도시한다. 3회 반복 검정으로 평균 값을 도시하고, 오차 막대는 SD를 나타낸다. EC50 값을 그래프 패드 프리즘으로 계산하였다: 7.5 pM(KPL4 세포), 25.6 pM(N87 세포), 30.6 pM(T47D 세포), 및 59.9 pM(MDA-MB-231 세포). (C) 나타낸 바와 같이, 24시간 또는 48시간 동안 Her3-양성 KPL4 표적 세포를 인간 PBMC 효과기 세포(E:T 10:1)와 함께 항온처리 및 Her3 TCB 분자의 농도 증가시, LD 방출에 의해 측정된 종양 세포 용해. 3회 반복 검정으로 평균 값을 도시하고, 오차 막대는 SD를 나타낸다. EC50 값을 그래프 패드 프리즘으로 계산하였다: 2.54 pM(24시간) 및 0.53 pM(48시간).
도 33은 카스파제 3/7 활성(발광)에 의해 측정된, Her3 TCB에 의해 유도된 종양 세포 용해율을 도시한다. PBMC(E:T = 10:1) 및 나타낸 바와 같은 상이한 농도의 Her3 TCB와 6.5시간 공동 항온처리 후 KPL-4-카스파제-3/7 글로센서(GloSensor) 표적 세포에서 카스파제 3/7 활성의 결과로서 측정된, 상대 발광 신호를 나타낸다. SD를 포함하여 3회 반복 검정하였다. EC50 값을 그래프 패드 프리즘으로 계산하였다: 0.7 pM.
도 34는 실시예 4에서 제조된 TCB를 도시한다. (A) 전하 변형(CD3 결합제에서 VH/VL 교환, MCSP 결합제에서 전하 변형, EE = 147E, 213E; RK = 123R, 124K)이 있는 "(Fab)2-교차Fab", (B) 전하 변형(CD3 결합제에서 VH/VL 교환)이 없는 "(Fab)2-교차Fab".
도 35는 실시예 4에서 제조(최종 정제 준비)된 전하 변형이 있는 TCB의 CE-SDS 분석을 도시한다: 도 34에 나타낸 (Fab)2-XFab-LC007cv의 전기영동도. 레인 A = 비환원됨, 레인 B = 환원됨.
도 36은 유동 세포계측법에 의해 측정된, TCB 분자와 MV-3 세포(좌측)에서 인간 MCSP 또는 주르카트 세포(우측)에서 인간 CD3의 결합에 대한 중간 형광 강도를 도시한다. SD를 포함하여 3회 반복 검정으로 측정된 중간 형광 값이 도시된다.
도 37은 인간 MCSP-양성 MV-3 세포와 인간 PBMC 효과기 세포(E:T = 10:1)의 항온처리 및 24시간(좌측) 또는 48시간(우측) 동안 TCB 분자의 농도 증가시, LDH 방출에 의해 측정된, 종양 세포 용해를 도시한다. 3회 반복 검정으로 평균 값을 도시하고, 오차 막대는 SD를 나타낸다.
Claims (65)
- 서열번호 18의 아미노산 서열과 적어도 95% 동일한 제 1 폴리펩티드 서열, 서열번호 19의 아미노산 서열과 적어도 95% 동일한 제 2 폴리펩티드 서열, 서열번호 20의 아미노산 서열과 적어도 95% 동일한 제 3 폴리펩티드 서열 및 서열번호 21의 아미노산 서열과 적어도 95% 동일한 제 4 폴리펩티드 서열을 포함하고,
(a) CD20에 특이적으로 결합하고, 서열번호 46의 아미노산 서열을 포함하는 중쇄 상보성 결정 영역(CDR) 1, 서열번호 47의 아미노산 서열을 포함하는 중쇄 CDR2, 서열번호 48의 아미노산 서열을 포함하는 중쇄 CDR3, 서열번호 49의 아미노산 서열을 포함하는 경쇄 CDR1, 서열번호 50의 아미노산 서열을 포함하는 경쇄 CDR2 및 서열번호 51의 아미노산 서열을 포함하는 경쇄 CDR3을 포함하는 제 1 Fab 분자;
(b) CD3에 특이적으로 결합하고, 서열번호 4의 아미노산 서열을 포함하는 중쇄 CDR1, 서열번호 5의 아미노산 서열을 포함하는 중쇄 CDR2, 서열번호 6의 아미노산 서열을 포함하는 중쇄 CDR3, 서열번호 8의 아미노산 서열을 포함하는 경쇄 CDR1, 서열번호 9의 아미노산 서열을 포함하는 경쇄 CDR2 및 서열번호 10의 아미노산 서열을 포함하는 경쇄 CDR3을 포함하되, Fab 경쇄 및 Fab 중쇄의 가변 도메인 VL 및 VH가 각각 서로 대체되는 제 2 Fab 분자; 및
(c) CD20에 특이적으로 결합하고, 서열번호 46의 아미노산 서열을 포함하는 중쇄 CDR1, 서열번호 47의 아미노산 서열을 포함하는 중쇄 CDR2, 서열번호 48의 아미노산 서열을 포함하는 중쇄 CDR3, 서열번호 49의 아미노산 서열을 포함하는 경쇄 CDR1, 서열번호 50의 아미노산 서열을 포함하는 경쇄 CDR2 및 서열번호 51의 아미노산 서열을 포함하는 경쇄 CDR3을 포함하는 제 3 Fab 분자
를 포함하는 T 세포 활성화 이중특이적 항원 결합 분자로서,
(i) 상기 제 1 Fab 분자 및 제 3 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 123 및 124의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 상기 제 1 Fab 분자 및 제 3 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147 및 위치 213 중 어느 한 위치 또는 두 위치 모두의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되거나;
(ii) 상기 제 2 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 상기 제 2 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147 및 위치 213 중 어느 한 위치 또는 두 위치 모두의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되는, T 세포 활성화 이중특이적 항원 결합 분자. - 서열번호 18의 아미노산 서열과 적어도 95% 동일한 제 1 폴리펩티드 서열, 서열번호 19의 아미노산 서열과 적어도 95% 동일한 제 2 폴리펩티드 서열, 서열번호 20의 아미노산 서열과 적어도 95% 동일한 제 3 폴리펩티드 서열 및 서열번호 21의 아미노산 서열과 적어도 95% 동일한 제 4 폴리펩티드 서열을 포함하고,
(a) CD20에 특이적으로 결합하고, 서열번호 30의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 31의 아미노산 서열을 포함하는 경쇄 가변 영역 제 1 Fab 분자;
(b) CD3에 특이적으로 결합하고, 서열번호 3의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 7의 아미노산 서열을 포함하는 경쇄 가변 영역을 포함하되, Fab 경쇄 및 Fab 중쇄의 가변 도메인 VL 및 VH가 각각 서로 대체되는 제 2 Fab 분자; 및
(c) CD20에 특이적으로 결합하고, 서열번호 30의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 31의 아미노산 서열을 포함하는 경쇄 가변 영역을 포함하는 제 3 Fab 분자
를 포함하는 T 세포 활성화 이중특이적 항원 결합 분자로서,
(i) 상기 제 1 Fab 분자 및 제 3 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 상기 제 1 Fab 분자 및 제 3 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147 및 위치 213 중 어느 한 위치 또는 두 위치 모두의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되거나;
(ii) 상기 제 2 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 상기 제 2 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147 및 위치 213 중 어느 한 위치 또는 두 위치 모두의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
제 1 폴리펩티드 서열이 서열번호 18의 아미노산 서열과 적어도 96% 동일하고/거나, 제 2 폴리펩티드 서열이 서열번호 19의 아미노산 서열과 적어도 96% 동일하고/거나, 제 3 폴리펩티드 서열이 서열번호 20의 아미노산 서열과 적어도 96% 동일하고/거나, 제 4 폴리펩티드 서열이 서열번호 21의 아미노산 서열과 적어도 96% 동일한, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
제 1 폴리펩티드 서열이 서열번호 18의 아미노산 서열과 적어도 97% 동일하고/거나, 제 2 폴리펩티드 서열이 서열번호 19의 아미노산 서열과 적어도 97% 동일하고/거나, 제 3 폴리펩티드 서열이 서열번호 20의 아미노산 서열과 적어도 97% 동일하고/거나, 제 4 폴리펩티드 서열이 서열번호 21의 아미노산 서열과 적어도 97% 동일한, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
제 1 폴리펩티드 서열이 서열번호 18의 아미노산 서열과 적어도 98% 동일하고/거나, 제 2 폴리펩티드 서열이 서열번호 19의 아미노산 서열과 적어도 98% 동일하고/거나, 제 3 폴리펩티드 서열이 서열번호 20의 아미노산 서열과 적어도 98% 동일하고/거나, 제 4 폴리펩티드 서열이 서열번호 21의 아미노산 서열과 적어도 98% 동일한, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
제 1 폴리펩티드 서열이 서열번호 18의 아미노산 서열과 적어도 99% 동일하고/거나, 제 2 폴리펩티드 서열이 서열번호 19의 아미노산 서열과 적어도 99% 동일하고/거나, 제 3 폴리펩티드 서열이 서열번호 20의 아미노산 서열과 적어도 99% 동일하고/거나, 제 4 폴리펩티드 서열이 서열번호 21의 아미노산 서열과 적어도 99% 동일한, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
제 1 폴리펩티드 서열이 서열번호 18의 아미노산 서열을 포함하거나, 제 2 폴리펩티드 서열이 서열번호 19의 아미노산 서열을 포함거나, 제 3 폴리펩티드 서열이 서열번호 20의 아미노산 서열을 포함하거나, 또는 제 4 폴리펩티드 서열이 서열번호 21의 아미노산 서열을 포함하는, T 세포 활성화 이중특이적 항원 결합 분자. - 서열번호 18의 아미노산 서열을 포함하는 제 1 폴리펩티드, 서열번호 19의 아미노산 서열을 포함하는 제 2 폴리펩티드, 서열번호 20의 아미노산 서열을 포함하는 제 3 폴리펩티드 및 서열번호 21의 아미노산 서열을 포함하는 제 4 폴리펩티드를 포함하는, T 세포 활성화 이중특이적 항원 결합 분자.
- 제 1 항에 있어서,
제 1 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 제 1 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147 및 위치 213 중 어느 한 위치 또는 두 위치 모두의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 9 항에 있어서,
제 1 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 10 항에 있어서,
제 1 Fab 분자의 불변 도메인 CH1에서 카바트에 따른 위치 123의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 카바트 EU 지수에 따른 위치 213의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 11 항에 있어서,
제 1 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K)으로 치환되고, 카바트에 따른 위치 123의 아미노산은 아르기닌(R)으로 치환되며,
제 1 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147의 아미노산은 글루탐산(E)으로 치환되고, 카바트 EU 지수에 따른 위치 213의 아미노산은 글루탐산(E)으로 치환되는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 11 항에 있어서,
제 1 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K)으로 치환되고, 카바트에 따른 위치 123의 아미노산은 리신(K)으로 치환되며,
제 1 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147의 아미노산은 글루탐산(E)으로 치환되고, 카바트 EU 지수에 따른 위치 213의 아미노산은 글루탐산(E)으로 치환되는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
제 2 Fab 분자가 서열번호 3의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 7의 아미노산 서열을 포함하는 경쇄 가변 영역을 포함하는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
제 1 Fab 분자 및 제 3 Fab 분자가 각각 서열번호 30의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 31의 아미노산 서열을 포함하는 경쇄 가변 영역을 포함하는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
Fc 도메인의 제 1 서브유닛 및 Fc 도메인의 제 2 서브유닛의 회합(association)을 촉진하는 변형을 포함한 Fc 도메인을 포함하는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 16 항에 있어서,
Fc 도메인의 제 1 서브유닛의 CH3 도메인에서 아미노산 잔기가 큰 측쇄 부피를 갖는 아미노산 잔기로 대체되어 제 2 서브유닛의 CH3 도메인 내의 캐비티에 위치할 수 있는 제 1 서브유닛의 CH3 도메인 내에 돌출부를 생성하고, Fc 도메인의 제 2 서브유닛의 CH3 도메인에서 아미노산 잔기가 작은 측쇄 부피를 갖는 아미노산 잔기로 대체되어 제 1 서브유닛의 CH3 도메인 내의 돌출부가 위치할 수 있는 제 2 서브유닛의 CH3 도메인 내의 캐비티를 생성하는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 17 항에 있어서,
큰 측쇄 부피를 갖는 아미노산 잔기가 아르기닌(R), 페닐알라닌(F), 티로신(Y) 및 트립토판(W)으로 이루어진 군으로부터 선택되고, 작은 측쇄 부피를 갖는 아미노산 잔기가 알라닌(A), 세린(S), 트레오닌(T) 및 발린(V)으로 이루어진 군으로부터 선택되는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 17 항에 있어서,
Fc 도메인의 제 1 서브유닛의 CH3 도메인에서 카바트 EU 지수에 따른 위치 366의 트레오닌 잔기가 트립토판 잔기로 대체되고(T366W), Fc 도메인의 제 2 서브유닛의 CH3 도메인에서 카바트 EU 지수에 따른 위치 407의 티로신 잔기가 발린 잔기로 대체되는(Y407V), T 세포 활성화 이중특이적 항원 결합 분자. - 제 17 항에 있어서,
Fc 도메인의 제 1 서브유닛에서 카바트 EU 지수에 따른 위치 354의 세린 잔기가 시스테인 잔기로 대체되거나(S354C), 카바트 EU 지수에 따른 위치 356의 글루탐산 잔기가 시스테인 잔기로 대체되고(E356C),
Fc 도메인의 제 2 서브유닛에서 카바트 EU 지수에 따른 위치 349의 티로신 잔기가 시스테인 잔기로 대체되는(Y349C), T 세포 활성화 이중특이적 항원 결합 분자. - 제 17 항에 있어서,
Fc 도메인의 제 1 서브유닛이 카바트 EU 지수에 따른 아미노산 치환 S354C 및 T366W를 포함하고, Fc 도메인의 제 2 서브유닛이 아미노산 치환 Y349C, T366S, L368A 및 Y407V를 포함하는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 16 항에 있어서,
Fc 도메인이 천연 IgG1 Fc 도메인과 비교하여 Fc 수용체에 대한 감소된 결합 친화성 및/또는 감소된 효과기(effector) 기능을 나타내는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 16 항에 있어서,
Fc 도메인이 Fc 수용체에 대한 결합 및/또는 효과기 기능을 감소시키는 하나 이상의 아미노산 치환을 포함하는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 23 항에 있어서,
하나 이상의 아미노산 치환이 카바트 EU 지수에 따른 L234, L235 및 P329의 군으로부터 선택된 하나 이상의 위치에 존재하는, T 세포 활성화 이중특이적 항원 결합 분자. - 제 16 항에 있어서,
Fc 도메인의 각각의 서브유닛이 활성화 Fc 수용체에 대한 결합 및/또는 효과기 기능을 감소시키는 3개의 아미노산 치환을 포함하고, 상기 아미노산 치환이 카바트 EU 지수에 따른 L234A, L235A 및 P329G인, T 세포 활성화 이중특이적 항원 결합 분자. - 제 22 항에 있어서,
Fc 수용체가 Fcγ수용체인, T 세포 활성화 이중특이적 항원 결합 분자. - 제 22 항에 있어서,
효과기 기능이 항체-의존성 세포-매개된 세포독성(ADCC)인, T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 있어서,
CD3는 CD3엡실론인, T 세포 활성화 이중특이적 항원 결합 분자. - 제 16 항에 있어서,
Fc 도메인이 IgG1 Fc 도메인 또는 IgG4 Fc 도메인인, T 세포 활성화 이중특이적 항원 결합 분자. - 제 19 항에 있어서,
Fc 도메인의 제 2 서브유닛에서 카바트 EU 지수에 따른 위치 366의 트레오닌 잔기가 세린 잔기로 대체되고(T366S), 위치 368의 류신 잔기가 알라닌 잔기로 대체되는(L368A), T 세포 활성화 이중특이적 항원 결합 분자. - 제 1 항에 따른 T 세포 활성화 이중특이적 항원 결합 분자 및 약학적으로 허용되는 담체를 포함하는 암 치료용 약학 조성물.
- (a) CD20에 특이적으로 결합하고, 서열번호 30의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 31의 아미노산 서열을 포함하는 경쇄 가변 영역 제 1 Fab 분자;
(b) CD3에 특이적으로 결합하고, 서열번호 3의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 7의 아미노산 서열을 포함하는 경쇄 가변 영역을 포함하되, Fab 경쇄 및 Fab 중쇄의 가변 도메인 VL 및 VH가 각각 서로 대체되는 제 2 Fab 분자; 및
(c) CD20에 특이적으로 결합하고, 서열번호 30의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 31의 아미노산 서열을 포함하는 경쇄 가변 영역을 포함하는 제 3 Fab 분자
를 포함하는 T 세포 활성화 이중특이적 항원 결합 분자를 포함하는 암 치료용 약학 조성물로서,
(i) 상기 제 1 Fab 분자 및 제 3 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 상기 제 1 Fab 분자 및 제 3 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147 및 위치 213 중 어느 한 위치 또는 두 위치 모두의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되거나;
(ii) 상기 제 2 Fab 분자의 불변 도메인 CL에서 카바트에 따른 위치 124의 아미노산은 리신(K), 아르기닌(R) 또는 히스티딘(H)으로 치환되고, 상기 제 2 Fab 분자의 불변 도메인 CH1에서 카바트 EU 지수에 따른 위치 147 및 위치 213 중 어느 한 위치 또는 두 위치 모두의 아미노산은 글루탐산(E) 또는 아스파르트산(D)으로 치환되는, 암 치료용 약학 조성물. - 제 32 항에 있어서,
T 세포 활성화 이중특이적 항원 결합 분자가
(d) 안정하게 회합할 수 있는 제 1 서브유닛 및 제 2 서브유닛을 포함하는 Fc 도메인을 추가로 포함하고,
(i) 상기 제 1 Fab 분자는 Fab 중쇄의 C-말단에서 상기 제 2 Fab 분자의 Fab 중쇄의 N-말단에 융합되고, 상기 제 2 Fab 분자 및 제 3 Fab 분자는 Fab 중쇄의 C-말단에서 각각 상기 Fc 도메인의 서브유닛 중 하나의 N-말단에 융합되거나,
(ii) 상기 제 2 Fab 분자는 Fab 중쇄의 C-말단에서 상기 제 1 Fab 분자의 Fab 중쇄의 N-말단에 융합되고, 상기 제 1 Fab 분자 및 상기 제 3 Fab 분자는 각각 Fab 중쇄의 C-말단에서 상기 Fc 도메인의 서브유닛 중 하나의 N-말단에 융합되는, 암 치료용 약학 조성물. - 제 33 항에 있어서,
상기 제 1 Fab 분자는 Fab 중쇄의 C-말단에서 상기 제 2 Fab 분자의 Fab 중쇄의 N-말단에 융합되고, 상기 제 2 Fab 분자 및 제 3 Fab 분자는 Fab 중쇄의 C-말단에서 각각 상기 Fc 도메인의 서브유닛 중 하나의 N-말단에 융합되는, 암 치료용 약학 조성물. - 서열번호 18의 아미노산 서열을 포함하는 제 1 폴리펩티드, 서열번호 19의 아미노산 서열을 포함하는 제 2 폴리펩티드, 서열번호 20의 아미노산 서열을 포함하는 제 3 폴리펩티드 및 서열번호 21의 아미노산 서열을 포함하는 제 4 폴리펩티드를 포함하는 T 세포 활성화 이중특이적 항원 결합 분자를 포함하는, 암 치료용 약학 조성물.
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| EP15170866.6 | 2015-06-05 | ||
| PCT/EP2015/067776 WO2016020309A1 (en) | 2014-08-04 | 2015-08-03 | Bispecific t cell activating antigen binding molecules |
| KR1020217033668A KR102411972B1 (ko) | 2014-08-04 | 2015-08-03 | 이중특이적 t 세포 활성화 항원 결합 분자 |
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