KR102548827B1 - 이중특이적 4가 항체 및 이의 제조 및 사용방법 - Google Patents
이중특이적 4가 항체 및 이의 제조 및 사용방법 Download PDFInfo
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Abstract
Description
도 1은 예시적 2가 단일특이적 면역글로불린 G(IgG) 항체의 도메인 구조를 도시하는 다이아그램이다.
도 2는 본 발명의 일 구현예에 따른 IgG 모이어티 및 2개의 scFv 모이어티를 포함하는 예시적 4가 이중특이적 항체의 도메인 구조를 도시하는 다이아그램이다.
도 3은 예시적 4가 이중특이적 항체 1X1, 1X2, 1X3, 1X4, 1X4.2, 1X5 및 1X6의 도메인 구조 다이아그램을 도시한다.
도 4는 5개의 아미노산 차이를 보여주는 SI-1X4 및 SI-1X4.2 간의 VH 도메인 서열 비교를 도시한다.
도 5 및 6은 BLI에 의한 단량체 EGFR 결합을 도시하는 그래프이다.
도 7, 8 및 9는 이중특이적 ELI 결합을 도시하는 그래프이다.
도 10은 이량체 EGFR ELISA를 도시하는 그래프이다.
도 11은, Octet에 의해 분석된, SI-1C5.2 및 SI-1X4.2의 단량체 EGFR과의 결합 동력학을 도시한다.
도 12는 A431 세포에 결합하는 SI-1X 항체의 유동 세포계측 분석을 도시한다.
도 13은 BxPC3 세포에 결합하는 SI-1X 항체의 유동 세포계측 분석을 도시한다.
도 14는 Fadu 세포에 결합하는 SI-1X4.2 항체의 유동 세포계측 분석을 도시한다.
도 15는 A431 세포에 결합하는 SI-1X4.2 항체의 유동 세포계측 분석을 도시한다.
도 16은 A431 세포 증식에 대한 SI-1X 항체의 효과를 도시한다.
도 17은 A431 세포 증식에 대한 SI-1X 항체의 효과를 도시한다.
도 18은 BxPC3 세포 증식에 대한 SI-1X 항체의 효과를 도시한다.
도 19는 BxPC3 세포 증식에 대한 SI-1X 항체의 효과를 도시한다.
도 20은 Fadu 세포 증식에 대한 SI-1X4.2 항체의 효과를 도시한다.
도 21은 A431 세포 증식에 대한 SI-1X4.2 항체의 효과를 도시한다.
도 22는 Fadu 세포에 대한 SI-1X 항체의 ADCC 활성을 도시한다.
도 23은 NCI-H1975 세포에 대한 SI-1X 항체의 ADCC 활성을 도시한다.
도 24는 SI-1X 항체의 안정성을 입증하기 위한 그들의 열 융융을 도시한다.
도 25는 7일의 기간 동안 SI-1X 항체의 혈청 안정성을 도시한다.
도 26은 래트에서 PK 연구를 위한 EGFR 코팅된 ELISA의 결과를 도시하는 그래프이다.
도 27은 래트에서 PK 연구를 위한 HER3 코팅된 ELISA의 결과를 도시하는 그래프이다.
도 28은 래트에서 PK 연구를 위한 샌드위치 ELISA의 결과를 도시하는 그래프이다.
도 29는 마우스 이종이식 연구에서 평균 종양 부피 대 일(day)의 플롯을 도시하는 그래프이다.
도 30은 마우스 이종이식 연구에서 상대적인 체중 대 주(week)의 플롯을 도시하는 그래프이다.
Claims (62)
- 서열번호 136을 포함하는, 제1 IgG1 중쇄, 커넥터, 및 단일쇄 Fv(scFv) 도메인 폴리펩티드;
서열번호 136을 포함하는, 제2 IgG1 중쇄, 커넥터, 및 scFv 도메인 폴리펩티드;
서열번호 131을 포함하는 제1 카파 경쇄 폴리펩티드; 및
서열번호 131을 포함하는 제2 카파 경쇄 폴리펩티드
를 포함하는, 이중특이적 4가 항체로서, 상기 제1 및 제2 IgG1 중쇄 및 제1 및 제2 카파 경쇄가 EGFR에 대해 결합 특이성을 갖는 IgG 모이어티를 형성하고, 상기 제1 및 제2 scFv 도메인 각각이 HER3에 대해 결합 특이성을 갖는, 이중특이적 4가 항체. - 제1항에 있어서, 적어도 하나의 IgG1 중쇄가 인간화되거나 인간 IgG1 중쇄인, 이중특이적 4가 항체.
- 제1항에 있어서, IgG1 중쇄 둘 다가 인간화되거나 인간 IgG1 중쇄인, 이중특이적 4가 항체.
- 제1항에 있어서, 적어도 하나의 카파 경쇄가 인간화되거나 인간 카파 경쇄인, 이중특이적 4가 항체.
- 제1항에 있어서, 카파 경쇄 둘 다가 인간화되거나 인간 카파 경쇄인, 이중특이적 4가 항체.
- 제1항에 있어서, IgG1-커넥터 연결이 프로테아제 활성에 대해 저항성인, 이중특이적 4가 항체.
- 제1항에 있어서, 항체가 암 세포 성장을 억제하는, 이중특이적 4가 항체.
- 제1항에 있어서, 항체가 50 nM 미만의 Kd로 EGFR 및 HER3에 결합하는, 이중특이적 4가 항체.
- 제1항에 있어서, 항체가 동시에 50 nM 미만의 Kd로 EGFR과 결합하고 50nM 미만의 Kd로 HER3와 결합하는, 이중특이적 4가 항체.
- 제1항 내지 제9항 중 어느 한 항에 따른 이중특이적 4가 항체를 암호화하는 단리된 핵산.
- 제10항의 단리된 핵산을 포함하는 발현 벡터.
- 제11항에 있어서, 벡터가 세포에서 발현될 수 있는, 발현 벡터.
- 제10항의 단리된 핵산을 포함하는 숙주 세포.
- 제11항의 발현 벡터를 포함하는 숙주 세포.
- 제14항에 있어서, 숙주 세포가 원핵세포 또는 진핵세포인, 숙주 세포.
- 제1항 내지 제9항 중 어느 한 항에 따른 이중특이적 4가 항체 및 세포독성제를 포함하는 면역접합체.
- 제1항 내지 제9항 중 어느 한 항에 따른 이중특이적 4가 항체 및 약학적으로 허용가능한 담체를 포함하는, 암을 치료하기 위한 약학적 조성물.
- 제17항에 있어서, 방사성 동위원소, 방사성 핵종, 독소, 치료제, 화학요법제 또는 이들의 조합을 추가로 포함하는, 약학적 조성물.
- 제16항의 면역접합체 및 약학적으로 허용가능한 담체를 포함하는, 암을 치료하기 위한 약학적 조성물.
- 제1항 내지 제9항 중 어느 한 항에 따른 이중특이적 4가 항체의 유효량을 암을 가진 비-인간 개체에게 투여하는 단계를 포함하는, 상기 비-인간 개체의 치료방법.
- 제17항에 있어서, 암이 EGFR 패밀리의 적어도 2개의 구성원을 발현하는 세포를 포함하는, 약학적 조성물.
- 제17항에 있어서, 암이 유방암, 결장직장암, 췌장암, 두경부암, 흑색종, 난소암, 전립선암, 비-소세포 폐암, 신경교종, 식도암, 비인두암, 항문암, 직장암, 위암, 방광암, 자궁경부암, 또는 뇌암을 포함하는, 약학적 조성물.
- 제17항에 있어서, 유효량의 치료제를 추가로 포함하는 약학적 조성물.
- 제23항에 있어서, 치료제가 항체, 화학요법제, 효소, 또는 이들의 조합을 포함하는, 약학적 조성물.
- 제23항에 있어서, 치료제가 항-에스트로겐제, 수용체 타이로신 억제제, 또는 이들의 조합을 포함하는, 약학적 조성물.
- 제23항에 있어서, 치료제가 카페시타빈(capecitabine), 시스플라틴(cisplatin), 트라스트주맙(trastuzumab), 풀베스트란트(fulvestrant), 타목시펜(tamoxifen), 레트로졸(letrozole), 엑세메스탄(exemestane), 아나스트로졸(anastrozole), 아미노글루테치미드(aminoglutethimide), 테스토락톤(testolactone), 보로졸(vorozole), 포르메스탄(formestane), 파드로졸(fadrozole), 레트로졸(letrozole), 엘로티닙(erlotinib), 라파티닙(lafatinib), 다사티닙(dasatinib), 제피티닙(gefitinib), 이마티닙(imatinib), 파조피닙(pazopinib), 라파티닙(lapatinib), 수니티닙(sunitinib), 닐로티닙(nilotinib), 소라페닙(sorafenib), 납-팔리탁셀(nab-palitaxel), 또는 이들의 유도체 또는 조합을 포함하는, 약학적 조성물.
- 제23항에 있어서, 치료제가 체크포인트 억제제를 포함하는, 약학적 조성물.
- 제23항에 있어서, 치료제가 PD1, PDL1, CTLA4, 4-1BB, OX40, GITR, TIM3, LAG3, TIGIT, CD40, CD27, HVEM, BTLA, VISTA, B7H4, 또는 이들의 유도체 또는 조합을 포함하는, 약학적 조성물.
- 제19항에 있어서, 다음 특징 중 적어도 하나를 갖는, 약학적 조성물:
i) 암이 EGFR 패밀리의 적어도 2개의 구성원을 발현하는 세포를 포함함;
ⅱ) 암이 유방암, 결장직장암, 췌장암, 두경부암, 흑색종, 난소암, 전립선암, 비-소세포 폐암, 신경교종, 식도암, 비인두암, 항문암, 직장암, 위암, 방광암, 자궁경부암, 또는 뇌암을 포함함;
ⅲ) 약학적 조성물이 유효량의 치료제를 추가로 포함함;
ⅳ) 약학적 조성물이 유효량의 항체, 화학요법제, 효소, 항-에스트로겐제, 수용체 타이로신 억제제, 카페시타빈, 시스플라틴, 트라스트주맙, 풀베스트란트, 타목시펜, 레트로졸, 엑세메스탄, 아나스트로졸, 아미노글루테치미드, 테스토락톤, 보로졸, 포르메스탄, 파드로졸, 레트로졸, 엘로티닙, 라파티닙, 다사티닙, 제피티닙, 이마티닙, 파조피닙, 라파티닙, 수니티닙, 닐로티닙, 소라페닙, 납-팔리탁셀, 또는 이들의 유도체 또는 조합을 추가로 포함함; 및
ⅴ) 약학적 조성물이 유효량의 체크포인트 억제제, PD1, PDL1, CTLA4, 4-1BB, OX40, GITR, TIM3, LAG3, TIGIT, CD40, CD27, HVEM, BTLA, VISTA, B7H4, 또는 이들의 유도체 또는 조합을 추가로 포함함. - 제1항 내지 제9항 중 어느 한 항에 따른 이중특이적 4가 항체의 유효량을 비-인간 개체에 투여하여 HER 수용체의 생물학적 활성을 억제하는 단계를 포함하는, 상기 비-인간 개체에서 HER 수용체의 생물학적 활성을 억제하는 방법.
- 제1항 내지 제9항 중 어느 한 항에 따른 이중특이적 4가 항체의 유효 농도를 포함하고, 개체로부터 단리된 혈장인, 용액.
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