KR101429696B1 - 안전성 및 항암활성이 증가된 재조합 아데노바이러스 및 이의 용도 - Google Patents
안전성 및 항암활성이 증가된 재조합 아데노바이러스 및 이의 용도 Download PDFInfo
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Abstract
Description
도 2는 조직 특이적 프로모터 PEPCK(phosphoenolpyruvate carboxykinase)와 HSVtk(Herpes simplex virus-thymidine kinase)를 포함하는 pPEPCK-HSVtk(pPT-O), 및 PEPCK, HSVtk 및 ApoE(Apolipoprotein E) 인핸서를 포함하는 pPEPCK- HSVtk-Enh(pPT-E) 재조합 아데노바이러스의 모식도를 나타낸 도이다.
도 3은 ApoE 인핸서의 존재에 따른 PEPCK로 유도된 HSVtk 활성을 확인한 도이다.
도 4는 CMV 프로모터, 녹색형광단백질(GFP)을 포함하고 E1 및 E3 유전자가 결실된 재조합 아데노바이러스(Ad5CMV. GFP) 및 CMV 프로모터, 녹색형광단백질(GFC) 및 혈청형 35의 섬유 혹과 혈청형 5의 샤프트를 포함하고, E1 및 E3 유전자가 결실된 재조합 아데노바이러스(Ad5/35CMV. GFP)의 모식도를 나타낸 도이다.
도 5는 Ad5CMV. GFP 및 Ad5/35CMV. GFP를 Hep3B 간암 세포주에 감염시킨 후 GFP-양성 세포수를 확인한 도이다.
도 6은 Ad5/35CMV. GFP로 감염된 Hep3B 간암 세포주에서 정량적-PCR(quantitative PCR)을 이용한 아데노바이러스 게놈 수를 확인한 도이다.
도 7은 본 발명의 재조합 아데노바이러스의 간암 특이적 효과를 확인한 도이다.
도 8은 Ad-PRT의 트랜스-스플라이싱 작용 확인을 확인한 도이다.
도 9는 PEPCK-양성 및 hTERT-양성 간암 세포주(HepG2, SNU398 및 SNU739), 및 PEPCK-음성 및 hTERT-음성 비 간암 세포주(인간 상피 세포(Human epithelial cell; HDF), 폐암 세포주(SBC-5) 및 대장암 세포주(HCT116))에서 간암 특이적 효과를 확인한 도이다.
도 10 정상 간에서 재조합 아데노바이러스에 매개한 TK(thymidine kinase) 유전자의 발현을 micro-PET/CT 이미지 및 표준화 흡수값(standardized uptake values; SUV)을 통해 확인한 도이다.
도 11은 암 유발 마우스에서 Ad-PRT의 간암-특이적 표적화 능력을 microPET-MR fusion 이미지를 통해 확인한 도이다.
도 12는 재조합 아데노바이러스가 감염되었는지 확인하기 위하여, 정상 부ㅇ위(normal; N) 및 간암 부의(tumor; T)에서 각각 RNA를 분리한 후, RT-PCR 분석법을 수행한 도이다.
도 13은 Ad-Mock, Ad-CRT, Ad-PT 및 Ad-PRT로 처치된 마우스 그룹(n=10/group)의 생존 플랏(survival plot)을 카플란-메이어(Kaplan-Meier) 방법을 이용하여 평가한 도이다.
도 14는 Ad-Mock, Ad-CRT, Ad-PT 및 Ad-PRT로 처치된 마우스 그룹(n=10/group)의 간 기능을 GCV 처치 후, 3일째 및 6일째에 간 특이적 효소인 ALT 및 AST로 측정한 결과를 나타낸 도이다; 오차 막대기는 평균 값±SEM을 나타낸다.
도 15는 간암조직에서 H&E 염색을 이용한 대표적인 조직 검사 결과 및 TUNEL 분석법을 이용한 세포사멸의 평가를 나타낸 도이다; TUNEL 분석에서 짙은 갈색의 핵 및 세포 염색은 세포사멸을 의미한다.
도 16은 Ad-PRT에 의한 간세포 암종 세포의 침습 억제 및 신생혈관 억제를 나타낸 도이다; 대표적인 침습 세포를 영상화하였고(위쪽), 각 그룹의 데이터는 평균 값±SEM(***p<0.001)로 표현되었다(오른쪽); 침습 세포 수의 3번의 독립적인 실험에서 적어도 5개 부위에서 카운팅하였고, 통계적 유의성은 t-test를 이용하여 평가되었다.
도 17은 Ad-PRT에 의한 간세포 암종 마우스에서의 면역조직화학적 평가를 통한 감소된 VEGF 및 CD34 발현을 나타낸 도이다.
도 18은 18F-FDG PET/CT 영상을 이용한 Ad-PRT의 치료적 효능을 나타낸 도이다; 각 그룹의 대표적인 18F-FDG PET/CT 영상은 간에서의 SUVmax 값과 함께 나타내었다.
도 19는 Ad-PRT를 투여한 간암세포 암종 마우스 모델에서의 PET/CT 영상을 5주 동안 관찰한 결과를 나타낸 도이다; 아래 도면 3개는 5주 후의 부검 결과로, 왼쪽은 외관 사진, 가운데는 왼쪽 간엽의 조직 사진, 오른쪽은 오른쪽 간엽의 조직 사진으로 파란색 종괴가 간세포암종이다.
도 20은 Ad-Mock를 투여한 간세포 암종 마우스 모델에서의 microPET 영상을 2주 동안 관찰한 영상을 나타낸 도이다.
도 21은 Ad-Mock(n=5), Ad-PRT(n=5) 그룹에서의 종양 SUVmax 값을 나타낸 그래프이다; 오차 막대기는 평균 값±SEM을 나타낸다(**p<0.01).
도 22는 Ad-PRT를 투여한 간세포 암종 마우스 모델에서의 microPET 영상을 2주 동안 관찰한 영상을 나타낸 도이다.
도 23은 각 그룹의 대표적인 간 조직 현미경 사진(H&E 염색)을 나타낸 도이다.
도 24는 종양 세포 접종 14일 후에, PRT(n=20) 및 Mock(n=10) 그룹에서의 조양 무게를 나타낸 그래프이다.
Claims (13)
- 간조직 특이적 PEPCK(phosphoenolpyruvate carboxykinase) 유전자의 프로모터; 상기 프로모터와 작동가능하게 연결된 암 특이적 유전자에 작용하는 트랜스 스플라이싱 라이보자임(trans-splicing ribozyme); 상기 라이보자임 3' 엑손에 연결된 치료 유전자 또는 리포터 유전자; 및 혈청형(serotype) 35의 섬유 혹(fiber knob)과 혈청형 5의 사프트(shaft)를 포함하고, 아데노바이러스 E1, E3 및 E4 orf1 내지 orf4 유전자가 결손된 재조합 아데노바이러스.
- 제 1항에 있어서, 상기 간조직 특이적 PEPCK 유전자의 프로모터는 서열번호 1로 기재된 염기서열을 갖는 것을 특징으로 하는 재조합 아데노바이러스.
- 제 1항에 있어서, 상기 프로모터는 서열번호 2로 기재되는 염기서열을 갖는 ApoA1의 인트론을 추가적으로 포함하는 것을 특징으로 하는 재조합 아데노바이러스.
- 제 1항에 있어서, 상기 암 특이적 유전자는 hTERT(human Telomerase Reverse Transcriptase) mRNA, AFP(alphafetoprotein) mRNA, CEA(carcinoembryonic antigen) mRNA, PSA(Prostate-specific antigen) mRNA, 또는 CKAP2(Cytoskeleton-associated protein 2) mRNA인 것을 특징으로 하는 재조합 아데노바이러스.
- 제 1항에 있어서, 상기 라이보자임은 hTERT(human Telomerase Reverse Transcriptase) mRNA를 특이적으로 표적하는 트랜스-스플라이싱 그룹 I 라이보자임인 것을 특징으로 하는 재조합 아데노바이러스.
- 제 1항에 있어서, 상기 치료 유전자는 약제감수성유전자, 세포사멸 유전자, 세포증식 억제 유전자, 세포독성 유전자, 종양 억제인자 유전자, 항원성 유전자, 사이토카인 유전자 및 항신생 혈관 생성 유전자로 구성된 군으로부터 선택되는 어느 하나인 것을 특징으로 하는 재조합 아데노바이러스.
- 제 1항에 있어서, 상기 리포터 유전자는 LacZ, 클로람페니콜 아세틸 전이효소(CAT: chloramphenicol acetyl transferase), 레닐라 루시퍼라제(Renila luciferase), 반딧불이(firefly) 루시퍼라아제, 적색형광단백질(RFP), 녹색형광단백질(GFP), 분비성 태반 알칼라인 포스파타아제(secreted placental alkaline phosphatase, SEAP) 또는 HSV-tk(Herpes simplex virus-thymidine kinase)를 암호화하는 유전자인 것을 특징으로 하는 재조합 아데노바이러스.
- 제 1항에 있어서, 상기 재조합 아데노바이러스는 서열번호 6으로 기재되는ApoE(apolipoprotein E) 유전자의 인핸서, PEPCK(phosphoenolpyruvate carboxykinase) 유전자의 인핸서, 혈청알부민 유전자의 인핸서, AFP(alphafetoprotein) 유전자의 인핸서, CEA(carcinoembryonic antigen) 유전자의 인핸서 또는 PSA(Prostate-specific antigen) 유전자의 인핸서를 추가적으로 포함하는 것을 특징으로 하는 재조합 아데노바이러스.
- 제1항에 있어서, 상기 트랜스 스플라이싱 라이보자임은 서열번호 3으로 표시되는 염기서열을 갖는 것을 특징으로 하는 재조합 아데노바이러스.
- 제1항에 있어서, 상기 치료 유전자는 서열번호 4로 표시되는 염기서열을 갖는 HSV-tk(Herpes simplex virus-thymidine kinase) 유전자인 것을 특징으로 하는 재조합 아데노바이러스.
- 제1항 내지 제10항 중 어느 한 항에 따른 재조합 아데노바이러스를 유효성분으로 포함하는 간암 치료용 약학적 조성물.
- 제1항 내지 제10항 중 어느 한 항에 따른 재조합 아데노바이러스를 유효성분으로 포함하는 간암 진단용 조성물.
- 1) 시험관내(In vitro)에서 제 1항 내지 제10항 중 어느 한 항에 따른 재조합 아데노바이러스를 암세포에 도입하는 단계; 및
2) 상기 단계 1)의 암 세포에서 리포터 단백질을 검출하는 단계를 포함하는, 시험관내(In vitro)에서 간암 진단을 위한 정보 제공방법.
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PCT/KR2013/010639 WO2014081229A1 (ko) | 2012-11-21 | 2013-11-21 | 안전성 및 항암활성이 증가된 재조합 아데노바이러스 및 이의 용도 |
EP13857052.8A EP2924115A4 (en) | 2012-11-21 | 2013-11-21 | RECOMBINANT ADENOVIRUS WITH INCREASED SAFETY AND ANTIBODY ACTIVITIES AND USE THEREOF |
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WO2017147265A1 (en) | 2016-02-23 | 2017-08-31 | Salk Institute For Biological Studies | High throughput assay for measuring adenovirus replication kinetics |
WO2017171654A1 (en) * | 2016-04-01 | 2017-10-05 | National University Of Singapore | Trans-splicing rna (tsrna) |
WO2018111767A1 (en) | 2016-12-12 | 2018-06-21 | Salk Institute For Biological Studies | Tumor-targeting synthetic adenoviruses and uses thereof |
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