KR20220044918A - 뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 - Google Patents
뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 Download PDFInfo
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Abstract
Description
도 2는 C-말단 규칙(C-end rule/CendR)을 따르고 NRP1의 b1도메인에 위치한 아르지닌 결합부위(Arginine-binding pocket)에 결합하는 리간드(VEGF-A 패밀리, Sema3)와 뉴로필린의 결합을 도식화한 것과 각 리간드들의 C-말단 서열을 분석한 것이다. 리간드들의 C-말단 부위 서열이 모두 C-말단 규칙 -R/K-X-X-R/K에 해당된다.
도 3은 NRP1과 항체 중쇄불변부위와 선별된 NRP1에 결합하는 펩타이드가 융합된 단백질 및 항체 중쇄불변부위와 선별된 NRP1에 결합하는 펩타이드가 융합된 단백질과 뉴로필린1의 결합 복합체를 도식화한 것이다.
도 4은 SEMA3A의 C-말단의 12개의 잔기가 해당되는 부분으로부터 8개이 잔기가 해당하는 부분에 동의코돈(degenerate codon)인 VVM(ACG/ACG/AC) 및 NHC(ACGT/ACT/C)를 넣어 라이브러리를 구축하는 방법을 나타낸 모식도이다.
도 5는 C-말단 규칙을 따르지 않고 NRP1의 아르지닌 결합 포켓에 특이적으로 결합하는 펩타이드를 골라내기 위한 선별 전략을 나타낸 모식도이다.
도 6은 선별된 단일 클론인 Fc-V12가 세포 표면에 발현되어 있을 때, 바이오틴화된 NRP1-b1b2 및 NRP1-b1b2 돌연변이 단백질에 대한 결합을 유세포분석(Flow cytometry)로 동정한 결과이다.
도 7은 항체 중쇄불변부위와 선별된 NRP1에 결합하는 펩타이드가 융합된 단백질을 발현하기 위한 벡터의 개열지도의 예이다.
도 8은 동물세포에서 발현 정제된 Fc-V12의 NRP1 및 NRP2 대한 결합능과 결합부위를 확인한 실험 결과이다.
도 8a는 Fc-V12의 NRP1-b1b2, NRP2-b1b2 및 각 단백질의 아르지닌 결합 포켓이 붕괴된 돌연변이 단백질에 대한 결합력을 측정한 ELISA 실험 결과이다.
도 8b는 Fc-V12가 VEGF165A와 NRP1에 경쟁하여 결합하는 지 확인하여 NRP1의 b1도메인에 위치한 아르지닌 결합 포켓에 특이적으로 결합하는지 알아보기 위한 경쟁적 ELISA(Competitive ELISA) 실험 결과이다.
도 9은 Fc-V12의 혈관 내피세포주인 HUVEC 세포에 발현된 NRP1 및 NRP2 대한 결합능 확인과 공초점 현미경(confocal microscopy)분석을 통해 NRP1과의 중첩(Co-localization) 및 세포내 유입능(Endocytosis)을 확인한 실험결과이다.
도 9a는 Fc-V12가 혈관 내피세포(HUVEC)에 발현된 NRP1에 선택적으로 결합함을 NRP1과 NRP2의 siRNA를 이용해서 확인한 유세포 분석 실험 결과이다.
도 9b는 Fc-V12가 세포 표면에 발현된 NRP1에 결합하는 지 확인하기 위해, 혈관 내피세포(HUVEC)를 이용한 공초점 현미경 분석을 통해 Fc-V12와 세포 표면의 NRP1과의 중첩(co-localization)을 관찰한 결과이며 NRP1에 의한 세포내 유입능(endocytosis)을 확인하기 위해 섭씨 4도와 37도에 각각 관찰한 결과이다.
도 10은 Fc-V12가 혈관 내피세포(HUVEC)의 투과능을 향상시키는지 확인하기 위하여, 트렌스웰 어세이(Transwell assay)를 수행한 결과이다.
도 11은 Fc-V12의 실제 종양 조직 내의 침투능을 확인하기 위한 면역조직화학(Immunohistochemistry) 결과이다.
도 12는 Fc-V12와 병용 투여한 독소루비신(doxorubicin)의 종양조직 내 침투능을 확인하기 위하여, 면역조직화학(Immunohistochemisty) 실험을 수행한 결과이다.
도 13은 Fc-V12의 C-말단 서열을 발린이 아닌 다른 아미노산으로 치환했을 때 NRP1의 결합능을 HUVEC세포를 이용한 유세포 분석을 통해 확인한 결과이다.
도 13a는 Fc-V12의 C-말단 서열을 발린이 아닌 다른 아미노산으로 치환한 돌연변이 단백질들을 동물세포로부터 정제한 후 비환원조건에서 SDS-PAGE분석을 한 결과이다.
도 13b는 Fc-V12의 C-말단 서열을 발린이 아닌 다른 아미노산으로 치환한 돌연변이 단백질들의 NRP1 결합능을 확인하기 위해 HUVEC세포를 이용한 유세포 분석 실험의 결과이다.
도 14는 Fc-V12의 5개의 C-말단 서열(8-12)를 고정하고, N-말단 서열(1-7)을 글라이신 또는 세린으로 치환한 돌연변이 단백질과 Fc-V12의 NRP1에 대한 결합능을 확인하기 위한 ELISA실험의 결과이다.
도 15는 V12 펩타이드의 NRP1에 대한 친화도 향상을 위한 라이브러리 구축을 나타낸 모식도이다.
도 16은 V12 펩타이드 유래의 NRP1에 대한 친화도가 향상된 NRP1 결합 펩타이드들의 생화학적 생물학적 동정을 수행한 결과이다.
도 16a는 항체 중쇄불변부위와 NRP1에 대한 친화도가 향상된 V12 펩타이드 유래의 펩타이드들이 융합된 단백질들인 Fc-V12-14, Fc-V12-15, Fc-V12-33 및 Fc-V12-44가 혈관 내피세포(HUVEC)에 발현된 NRP1에 선택적으로 결합함을 NRP1과 NRP2의 siRNA를 이용해서 확인한 유세포 분석 실험 결과이다.
도 16b는 Fc-V12보다 NRP1에 대한 친화도가 향상된 Fc-V12-33이 NRP1에 의존적으로 혈관 내피세포(HUVEC)의 투과능을 향상시키는지 확인하기 위하여 수행한 트렌스웰 어세이(Transwell assay)를 결과이다.
도 16c는 Fc-V12-33이 VEGF165A와 NRP1에 경쟁하여 결합하는 지 확인하여 NRP1의 b1도메인에 위치한 아르지닌 결합 포켓에 특이적으로 결합하는지 알아보기 위한 경쟁적 ELISA(Competitive ELISA) 실험 결과이다.
도 17은 Fc-V12-33에서 항체 Fc절편과 V12-33 펩타이드를 연결할 때 사용되는 링커에 따른 NRP1에 대한 결합능의 변화를 확인하기 실험이다.
도 17a는 Fc-V12-33의 링커 길이 및 종류, 유무에 따른 클론들의 명칭과 이를 동물세포로부터 정제 후 SDS-PAGE를 통해 분석한 결과이다.
도 17b는 Fc-V12-33의 링커 길이 및 종류, 유무에 따른 클론들의 NRP1에 대한 결합능을 확인한 ELISA 실험을 통해 분석한 결과이다.
도 18은 C-말단 규칙을 벗어나면서 NRP1에 결합할 수 있는 펩타이드를 이용한 융합단백질인 Fc-V12 및 Fc-V12-33의 생물학적 효능을 종합적으로 나타낸 모식도이다.
Claims (15)
- 뉴로필린1(NRP1)에 특이적으로 결합하는 펩타이드로서,
상기 펩타이드는 C-말단에 하기의 아미노산을 포함하고,
X1-X2-X3-X4-X5의 식에서 X1 내지 X4는 각각 독립적으로 임의의 아미노산 서열이고, 상기 X5는 발린인 것을 특징으로 하는 펩타이드. - 제1항에 있어서, 5-50개의 아미노산으로 구성된 것을 특징으로 하는 펩타이드.
- 제1항에 있어서, 서열번호 1 내지 7으로 구성된 군에서 선택된 아미노산 서열을 포함하는 것을 특징으로 하는 펩타이드.
- 제3항에 있어서, 서열번호 7의 아미노산 서열을 포함하는 것을 특징으로 하는 펩타이드
- 제1항에 있어서, 링커 펩타이드를 추가로 포함하는 것을 특징으로 하는 펩타이드.
- 제5항에 있어서, 상기 링커 펩타이드는 (GGGGS)n 또는 G(APAPA)n를 포함하고, n은 1 내지 20의 정수인 펩타이드.
- 제1항 내지 제6항 중 어느 한 항에 따른 펩타이드가 융합된 융합 단백질.
- 제7항에 있어서, 항체, 항체의 단편, 면역 글로불린, 펩타이드, 효소, 성장인자(growth factor), 사이토카인(cytokine), 전사인자, 독소, 항원성 펩티드, 호르몬, 운반 단백질, 운동 기능 단백질, 수용체, 신호(signaling) 단백질, 저장 단백질, 막 단백질, 막횡단(transmembrane) 단백질, 내부(internal) 단백질, 외부(external) 단백질, 분비 단백질, 바이러스 단백질, 당 단백질, 절단된 단백질, 단백질 복합체, 및 화학적으로 개질된 단백질로 구성된 군으로부터 선택된 단백질에 펩타이드가 융합된 것을 특징으로 하는 융합 단백질.
- 제8항에 있어서, 상기 항체의 단편은 항체의 중쇄불변영역 절편(Fc), 중쇄불변영역 도메인 (CH1, CH2, 또는 CH3) 절편, 항원결합 절편(antigen binding fragment(Fab)), 단일사슬항체절편(single chain variable fragment(scFv)), 중쇄가변영역 절편(VH), 경쇄불변영역 절편(CL) 또는 경쇄가변영역 절편(VL)인 융합 단백질.
- 제1항 내지 제6항 중 어느 한 항의 펩타이드가 융합된 나노입자.
- 제1항 내지 제6항 중 어느 한 항의 펩타이드가 융합된 리포좀.
- 제1항 내지 제6항 중 어느 한 항의 펩타이드가 융합된 소분자 약물.
- 제1항 내지 제6항 중 어느 한 항의 펩타이드가 융합된 핵산.
- 제1항 내지 제6항 중 어느 한 항의 펩타이드를 코딩하는 폴리뉴클레오티드.
- 다음을 포함하는 제1항의 펩타이드를 스크리닝하는 방법:
(1) NRP1-b1 아르지닌 결합부위 (Arginine-binding pocket)와 상호 작용할 수 있는 라이브러리를 디자인하는 단계;
(2) 상기 단계 (1)의 라이브러리를 항체 중쇄 불변부위에 융합시키는 단계;
(3) 상기 단계 (2)의 항체 중쇄 불변부위에 융합된 라이브러리를 NRP1-b1b2와 결합시키는 단계; 및
(4) 상기 단계 (3)의 결합력을 측정하는 단계.
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KR1020220039467A KR20220044918A (ko) | 2019-09-06 | 2022-03-30 | 뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 |
KR1020230004835A KR20230013143A (ko) | 2017-10-26 | 2023-01-12 | 뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 |
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KR1020190110743A KR102382403B1 (ko) | 2017-10-26 | 2019-09-06 | 뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 |
KR1020220039467A KR20220044918A (ko) | 2019-09-06 | 2022-03-30 | 뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 |
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KR1020190110743A Division KR102382403B1 (ko) | 2017-10-26 | 2019-09-06 | 뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 |
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KR1020230004835A Division KR20230013143A (ko) | 2017-10-26 | 2023-01-12 | 뉴로필린1에 특이적으로 결합하는 Non-CendR 펩타이드, 상기 펩타이드가 융합된 융합 단백질 및 이의 용도 |
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