KR101569083B1 - Vegfr-2와 dll4를 표적으로 하는 이중표적항체 및 이를 포함하는 약학적 조성물 - Google Patents
Vegfr-2와 dll4를 표적으로 하는 이중표적항체 및 이를 포함하는 약학적 조성물 Download PDFInfo
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Abstract
본 발명에 따른 이중표적항체는 VEGF/VEGFR-2 및 DLL4/Notch1의 두 가지 경로에 따른 신호전달을 보다 효율적으로 동시에 저해함으로써 종양 등 다양한 혈관신생 관련 질환을 치료할 수 있으며, 특히 신생혈관치료제를 단독으로 사용함에 따라 발생되는 내성을 극복할 수 있으며, 암줄기세포를 직접 타겟팅함으로써 암의 재발을 근본적으로 방지할 수 있다는 장점이 있다.
Description
SEQ ID NO. | 구분 | 서열 |
1 | 중쇄 가변영역 | AQPAMAQMQL VQSGAEVKKP GASVKLSCKA SGYTFSSYWM HWVRQAPGQR LEWMGEINPG NGHTNYNEKF KSRVTITVDK SASTAYMELS SLRSEDTAVY YCAKIWGPSL TSPFDYWGQG TL |
2 | 중쇄 가변영역 | QMQLVQSGAE VKKPGASVKL SCKASGYTFS SYWMHWVRQA PGQRLEWMGE INPGNGHTNY NEKFKSRVTI TVDKSASTAY MELSSLRSED TAVYYCAKIW GPSLTSPFDY WGQGTL |
3 | 중쇄 가변영역 | QMQLVQSGAE VKKPGASVKL SCKASGYTFS SYWMHWVRQA PGQRLEWMGE INPGNGHTNY NEKFKSRVTI TVDKSASTAY MELSSLRSED TAVYYCAKIW GPSLTSPFDY WGQGTL |
4 | 경쇄 가변영역 | SGVGSNFMLT QPPSVSVSPG KTARITCRGD NLGDVNVHWY QQRPGQAPVL VMYYDADRPS GIPERFSGSN SGNTATLTIS GVEAGDEADY YCQVWDRTSE YVFGTGTKVT VLG |
5 | 경쇄 가변영역 | NFMLTQPPSV SVSPGKTARI TCRGDNLGDV NVHWYQQRPG QAPVLVMYYD ADRPSGIPER FSGSNSGNTA TLTISGVEAG DEADYYCQVW DRTSEYVFGT GTKVTVLG |
6 | 경쇄 가변영역 | NFMLTQPPSV SVSPGKTARI TCRGDNLGDV NVHWYQQRPG QAPVLVMYYD ADRPSGIPER FSGSNSGNTA TLTISGVEAG DEADYYCQVW DRTSEYVFGT GTKVEIKRT |
SEQ ID NO. | 구분 | 서열 |
7 | Notch1 수용체의 11 내지 12 번째의 EGF-유사 도메인 | DVDECSLGAN PCEHAGKCIN TLGSFECQCL QGYTGPRCEI DVNECVSNPC QNDATCLDQI GEFQCICMPG YEGVHCE |
8 | 아미노산 링커 | SGGGGSGGGGSGS |
SEQ ID NO. | 서열 |
9 | DVDECSLGAN PCEHAGKCIN TLGSFECQCL QGYTGPRCEI DVNECVSNPC QNDATCLDQI GEFQCICMPG YEGVHCE SGG GGSGGGGSGS NFMLTQPPSV SVSPGKTARI TCRGDNLGDV NVHWYQQRPG QAPVLVMYYD ADRPSGIPER FSGSNSGNTA TLTISGVEAG DEADYYCQVW DRTSEYVFGT GTKVTVLG |
10 | DVDECSLGAN PCEHAGKCIN TLGSFECQCL QGYTGPRCEI DVNECVSNPC QNDATCLDQI GEFQCICMPG YEGVHCE SGG GGSGGGGSGS NFMLTQPPSV SVSPGKTARI TCRGDNLGDV NVHWYQQRPG QAPVLVMYYD ADRPSGIPER FSGSNSGNTA TLTISGVEAG DEADYYCQVW DRTSEYVFGT GTKVEIKRT |
도 2는 본 발명에 따른 벡터 PMC-201 v213을 도식화하여 나타낸 도면.
도 3은 본 발명에 따른 벡터를 293-T 세포를 이용하여 임의발현 시킨 후 정제한 이중표적항체의 생산을 SDS-PAGE를 통해서 확인한 결과를 나타낸 도면.
도 4는 본 발명에 따른 이중표적항체의 VEGFR-2 및 인간 DLL4에 대한 결합능을 ELISA로 분석한 결과를 나타낸 도면.
도 5는 본 발명에 따른 이중표적항체의 인간 DLL4에 대한 결합능을 Biacore 로 분석한 결과를 나타낸 도면.
도 6은 본 발명에 따른 이중표적항체의 인간 DLL4에 대한 결합능을 Flow cytometer 로 분석한 결과를 나타낸 도면.
도 7은 본 발명에 따른 이중표적항체의 HUVEC에 대한 세포증식 분석(proliferation assay) 결과를 나타낸 도면.
도 8은 본 발명에 따른 이중표적항체가 인간의 DLL4에 결합하는 Notch-Fc의 결합을 경쟁적으로 저해하는 현상을 FACS를 이용하여 분석한 결과를 나타낸 도면.
도 9는 본 발명에 따른 이중표적항체가 Notch-1 의한 프로모터 활성화를 저해하는 것을 luciferase 발광 값으로 분석한 결과를 나타낸 도면.
도 10은 본 발명에 따른 이중표적항체와 HUVEC를 hDLL4가 코팅된 배양접시에서 배양하였을 때, Notch-1의 활성화에 의해서 세포내 도메인(NICD)이 증가하는 것을 저해하는 현상을 웨스턴블랏으로 분석한 결과를 나타낸 도면.
도 11은 본 발명에 따른 이중표적항체와 HUVEC를 hDLL4를 발현하는 293 세포주와 공배양하였을 때, Notch-1의 활성화에 의해서 세포내 도메인(NICD)이 증가하는 것을 저해하는 현상을 웨스턴블랏으로 분석한 결과를 나타낸 도면.
Claims (22)
- 삭제
- VEGFR-2에 특이적으로 결합하는 항체의 말단에 DLL4의 길항제(antagonist)가 결합된, VEGFR-2와 DLL4를 표적으로 하는 이중표적항체로,
상기 VEGFR-2에 특이적으로 결합하는 항체는 서열번호 1 내지 서열번호 3에서 선택된 어느 하나의 서열을 가지는 중쇄 가변영역과, 서열번호 4 내지 서열번호 6에서 선택된 어느 하나의 서열을 가지는 경쇄 가변영역을 포함하고,
상기 DLL4의 길항제는 서열번호 7의 서열을 가지는 인간 Notch1의 11~12번째 칼슘 결합(calcium-binding) EGF-유사 도메인을 포함하는 것을 특징으로 하는 이중표적항체.
- 삭제
- 삭제
- 제2항에 있어서, VEGFR-2를 표적으로 하는 항체의 경쇄 N-말단에 DLL4의 길항제가 결합된 것을 특징으로 하는 이중표적항체.
- 제5항에 있어서, VEGFR-2를 표적으로 하는 항체와 DLL4의 길항제는 아미노산 링커를 통해 결합된 것을 특징으로 하는 이중표적항체.
- 삭제
- 제2항에 있어서, VEGFR-2에 특이적인 항체는 서열번호 1의 중쇄 가변영역과 서열번호 4의 경쇄 가변영역, 서열번호 2의 중쇄 가변영역과 서열번호 5의 경쇄 가변영역 또는 서열번호 3의 중쇄 가변영역과 서열번호 6의 경쇄 가변영역으로 이루어진 것을 특징으로 하는 이중표적항체.
- 삭제
- 제2항, 제5항, 제6항 및 제8항 중 어느 한 항에 따른 이중표적항체를 코딩하는 DNA.
- 제10항에 따른 DNA를 포함하는 재조합 발현 벡터.
- 제11항에 따른 재조합 발현 벡터로 형질전환된 숙주세포.
- 제12항에 따른 숙주세포를 배양하고, 이의 배양물로부터 이중표적항체를 분리하는 것을 특징으로 하는 이중표적항체의 제조 방법.
- 제13항에 있어서, 이중표적항체는 Protein A 친화성 컬럼, SP-sepharose 컬럼 및 크기배제크로마토그래피를 가지고 FPLC를 이용해서 추가로 정제하는 것을 특징으로 하는 이중표적항체의 제조 방법.
- 제2항, 제5항, 제6항 및 제8항 중 어느 한 항에 따른 이중표적항체를 포함하는 혈관신생 억제용 약제학적 조성물.
- 제15항에 있어서, 상기 혈관신생에 의해 유발되는 종양(암), 종양의 전이 (metastasis), 연령관련 황반변성 (age-related macular degeneration, ARMD), 당뇨병성 망막병증 (diabetic retinopathy), 건선 (psoriasis), 류마티스성 관절염 (rheumatoid arthritis) 및 만성염증 (chronic inflammation)에서 선택된 1 종 이상의 치료용 조성물임을 특징으로 하는 약제학적 조성물.
- 제16항에 있어서, 상기 암은 대장암, 결장암, 위암, 유방암, 폐암, 난소암, 간암, 기관지암, 비인두암, 후두암, 췌장암, 방광암, 이자암, 자궁경부암, 뇌암, 전립선암, 골암, 피부암, 갑상선암, 부갑상선암, 신장암, 식도암, 담도암, 고환암, 직장암, 두경부암, 경추암, 요관암, 골육종, 신경세포아종, 흑색종, 섬유육종, 횡문근육종, 성상세포종, 신경모세포종 또는 신경교종 중에서 선택된 1 종 이상임을 특징으로 하는 약제학적 조성물.
- 인간 DLL4(hDLL4)를 발현하는 세포주 또는 재조합 세포주와 인간탯줄내피세포(HUVEC)의 공배양을 통해 Notch 1 활성을 측정하는 것을 특징으로 하는 제2항, 제5항, 제6항 및 제8항 중 어느 한 항에 따른 이중표적항체의 DLL4 길항 효능 측정방법.
- 제18항에 있어서, Notch 1 활성은 NICD의 발현양을 측정하는 것을 특징으로 하는 이중표적항체의 DLL4 길항 효능 측정방법.
- 제19항에 있어서, NICD의 발현양은 SDS-PAGE, 웨스턴 블랏(western blotting), 면역조직화학염색법(immunohistochemical staining), 면역염색법(immuno-staining), 면역형광염색법(immunofluorescence) 및 루시퍼레이즈 어세이(luciferase assay)로 구성된 군에서 선택되는 방법으로 측정하는 것을 특징으로 하는 이중표적항체의 DLL4 길항 효능 측정방법.
- 제18항에 있어서, hDLL4를 발현하는 재조합 세포주는 hDLL4 과발현 293 세포주(293-hDLL4)인 것을 특징으로 하는 이중표적항체의 DLL4 길항 효능 측정방법.
- 제18항에 있어서, 상기 공배양은 (a) 인간탯줄내피세포를 배양하는 단계; 및 (b) hDLL4를 발현하는 세포주 또는 재조합 세포주와 이중표적항체를 반응시킨 다음, 상기 (a) 단계에서 배양된 인간탯줄내피세포에 처리하여 공배양하는 단계;를 포함하는 것을 특징으로 하는 이중표적항체의 DLL4 길항 효능 측정방법.
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US9963512B2 (en) | 2018-05-08 |
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US10155817B2 (en) | 2018-12-18 |
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