KR20100065405A - 인플루엔자 바이러스 벡터의 패키징을 위한 신호 - Google Patents
인플루엔자 바이러스 벡터의 패키징을 위한 신호 Download PDFInfo
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- KR20100065405A KR20100065405A KR1020107011520A KR20107011520A KR20100065405A KR 20100065405 A KR20100065405 A KR 20100065405A KR 1020107011520 A KR1020107011520 A KR 1020107011520A KR 20107011520 A KR20107011520 A KR 20107011520A KR 20100065405 A KR20100065405 A KR 20100065405A
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Abstract
Description
도 2: AL3(MaKS)-13 및 K4(MaKS)-13 돌연변이체의 NA 유전자의 구조. (A) AL3(MaKS)-13은 NA 유전자 코딩 서열의 많은 부분을 제거하는 936 개 뉴클레오티드 결실 (220 내지 1253 개 염기)을 함유한다. 이러한 돌연변이는 또한 TAG 정지 코돈을 결실 밖의 이염기 프레임으로 가져와, 유전자가 NA의 세포질 꼬리, 막횡단 영역, 자루 및 머리부에 상응하는 66-아미노-산 펩티드만을 암호화하도록 한다. (B) K4(MaKS)-13 NA 유전자는 NA 유전자 코딩 서열의 많은 부분을 제거하는 1,066 개 뉴클레오티드 결실 (130 내지 1193 개 염기)을 함유한다. 이러한 돌연변이는 또한 TAG 정지 코돈을 결실 밖의 사염기 프레임으로 가져와, 유전자가 NA 유전자의 세포질 꼬리 및 막횡단 영역에 상응하는 38-아미노-산 펩티드만을 암호화하도록 한다.
도 3: 부모 AM2AL3 바이러스, 부모 K4 바이러스, AL3(MaKS)-13 돌연변이체 및 K4(MaKS)-13 돌연변이체의 시알리다제 활성. 각각의 샘플에 있어서, 바이러스 (5 × 102 PFU)를 형광 시알리다제 기질 (4-메틸엄벨리페릴-α-N-아세틸뉴라민산)의 존재하에 37 ℃에서 1 시간 동안 2배로 배양시켰다. 방출된 4-메틸엄벨리페론의 형광을 360 nm에서 여기되고 460 nm에서 방출되는 형광측정기 (랩시스템즈 (Labsystems) 플로오로스캔 (Fluoroskan) II)로 측정하였다.
도 4a: 야생형 및 NAFLAG 벡터의 개략도.
도 4b: NAFLAG 바이러스 제조 방법의 개략도.
도 4c: NAFLAGWT 바이러스 또는 NA(-) 바이러스에 감염된 MDCK 세포의 면역염색. 상기 세포들을 항-FLAG 모노클로날 항체 (MAb) M2 또는 항-WSN 폴리클로날 항체로 염색하였다.
도 5: 재조합 7 개 절편 인플루엔자 바이러스 및 NAFLAG 바이러스를 위한 경쟁 분석의 개략도.
도 6a: NAFLAG 및 NAFLAGM(-) ("-ATG") 벡터의 개략도.
도 6b: NAFLAGM(-) 바이러스로 감염된 MDCK 세포의 면역염색. 상기 세포들을 항-FLAG 모노클로날 항체 M2 또는 항-WSN 폴리클로날 항체로 염색하였다.
도 7a: FLAG 서열용 NAFLAG 및 NAFLAGM(-)로 감염된 세포의 동일계내 혼성화 분석.
도 7b: NAFLAGWT 바이러스 또는 NAFLAGM(-) 바이러스의 복제 효율.
도 8a: NA 결실 바이러스의 개략도.
도 8b: NA 결실 바이러스의 패키징율.
도 9: 6, 7 또는 8개 절편의 인플루엔자 바이러스의 시간에 따른 바이러스 역가.
도 10: 인플루엔자 바이러스 절편용 혼입 시그널 (점각)을 나타내는 개략도.
도 11a: 인플루엔자 비리온의 전자 현미경 단층촬영도.
도 11b 내지 11f: 인플루엔자 비리온의 전자 현미경 단층촬영도로 발견한 막대균의 컬러 이미지.
도 12: a) A형 인플루엔자 바이러스 및 HA 코딩 서열을 B HA형으로 대체한 A형 바이러스용 바이러스 절편. b) A형 인플루엔자 바이러스 및 HA 코딩 서열을 B HA형으로 대체한 A형 바이러스용 비리온.
도 13: A/B 키메라 HA 구조물의 도면. 뉴만 (Neumann) 등 (1999)이 기재한 바와 같이 pPolI 기재 플라스미드 (pHH21) 중 야생형 A/WSN 바이러스 HA (pPolI-WSN-HA) 및 야생형 B/Lee 바이러스 HA (pPolI-B-HA) 사이에서 키메라 HA 구조물을 제조하였다.
도 14: A/B HA 키메라 바이러스에 의한 B HA형의 표현. 각각의 바이러스로 감염된 MDCK 세포를 감염후 제24시간 고정시키고, 항-A/HA, 항-B/HA 또는 항-A/NP 항체로 면역염색하였다.
도 15: A/B HA 키메라 바이러스의 성장 특성. MDCK 세포를 0.01 TCID50의 MOI에서 각각의 바이러스로 감염시키고, 바이러스의 성장을 모니터링하였다. 유사한 결과를 갖는 두 개의 독립된 실험 중 하나를 나타내었다.
도 16: A/B HA 키메라 바이러스를 접종한 마우스의 B형 바이러스에 대한 항체 반응. a) 마우스 (마우스 3 마리/군)를 각각의 바이러스 (103 TCID50)로 비강 접종시켰다. 접종후 제3주, 코/기관을 세척하고, 혈청 샘플을 마우스로부터 뽑아서 ELISA 측정 중 항-B 바이러스 특이 IgA (코/기관 세척) 또는 IgG (혈청) 항체를 시험하였다. b) 혈청 샘플내 HI 역가도 시험하였다. 각각의 바아는 키메라 바이러스로 감염된 개별적인 마우스를 나타낸다.
도 17: HA vRNA 돌연변이체 및 그의 비리온 혼입 효율의 개략도. 모든 HA RNA 돌연변이체는 (-) 센스 방향을 나타낸다. 각각의 돌연변이체는 HA vRNA (검정 바아)의 정지 코돈, 3' 비코딩 영역의 33 개 뉴클레오티드 및 5' 비코딩 영역의 45 개 뉴클레오티드로 플랭킹된 GFP 오픈 리딩 프레임 (HA 오픈 리딩 프레임을 갖는 프레임내 삽입)을 함유한다. 돌연변이체는 HA 코딩 영역으로부터 유도된 뉴클레오티드의 개수에 따라 명명하였다. HA 코딩 영역은 회색 바아로 나타내었다. 수평 점선은 결실을 나타낸다. 영역의 길이는 비례하지 않는다. HA vRNA 돌연변이체의 VLP로의 혼입 효율은 접종후 제16시간 고정되고 VLP로 감염된 세포 중 GFP로 표현되는 세포의 개수를 NP로 표현되는 세포의 개수로 나누어 측정하였다.
도 18: 플라스미드 발현 돌연변이체 HA vRNA로 형질감염된 293T 세포 중 vRNA 농도. 293T 세포를 pPolIHA(0)GFP(0) 또는 pPolIHA(9)GFP(80) 및 플라스미드 발현 PA, PB1, PB2 및 NP로 형질감염시켰다.
도 19: VSVG(HA)GFP(NA) 바이러스 감염된 세포의 VSV G 및 GFP 발현. MDCK 세포를 VSVG(HA)GFP(NA) 바이러스 또는 WSN 바이러스로 감염시키고 1.0 % 아가로오즈로 오버레이시켰다. 감염된 세포를 37 ℃에서 48 시간 동안 배양하고 플라크를 정상광 하에서 (A, B), 그리고 플라크를 식별하기 위한 한정된 정상광 및 형광 하에서 (C, D) 사진촬영하였다. 세포를 고정시키고 3 % 포름알데히드 중 0.1 % 트리톤-X100 (Triton-X100) 용액이 스며들게 하였다. 벡타스테인 ABC 키트 (Vectastain ABC kit; 미국 캘리포니아주 벌링게임에 소재하는 벡터 (Vector) 제품)를 사용하여 1차 항체 및 바이오티닐화 2차 항체로서 항-VSV G 모노클로날 항체 (E, F), 항-HA 모노클로날 항체 (G, H) 또는 항-NP 모노클로날 항체 (I, J)로 면역 염색하여 바이러스 단백질을 검출하였다.
도 20: VSVG(HA)GFP(NA) 바이러스로의 VSV G 단백질의 혼입. 샘플 완충액 중에서 농축 WNS, VSVG(HA)GFP(NA) 및 VSV 바이러스를 용균하였다. 바이러스 단백질을 2-메르캅토에탄올로 처리하고, 10 % SDS-PAGE로 분리한 후 PVDF 멤브레인으로 이송하여 항-VSV G 모노클로날 항체 또는 항-WSN-HA 모노클로날 항체와 배양하였다. 마커 단백질의 분자량을 좌측에 나타내었다.
도 21: BHK, CHO 및 MDCK 세포 중 VSVG(HA)GFP(NA) 바이러스의 성장 곡선. BHK(a), CHO (b) 및 MDCK (c) 세포를 0.001의 MOI에서 바이러스로 감염시켰다. 감염 후 소정 시점에서 MDCK세포를 사용하여 상등액 중 바이러스 역가를 측정하였다. 이 값은 2회 실험의 평균값이다.
도 22: 돌연변이체 NS vRNA 및 이들의 혼입 효율의 개략도.
도 23: 돌연변이체 M vRNA 및 이들의 혼입 효율의 개략도.
도 24: 두 이종 단백질을 발현하는 A) 바이러스 절편 및 B) 비리온의 개략도.
도 25: 두 이종 단백질 HIV gp160 및 gag의 바이러스 절편과 인플루엔자 바이러스의 개략도.
도 26: Cre/lox를 사용한 불능 바이러스 복제 생산 개략도.
렉틴-내성 세포주에서 인플루엔자 바이러스의 복제* | ||
세포주 | 역가 (TCID50/ml) | |
AM2AL3 | K4 | |
MDCK | 1.8 x 109 | 5.6 x 104 |
MDCK-Sn10 | 5.6 x 108 | 3.2 x 104 |
MDCK-Ma | 1.8 x 108 | 5.6 x 103 |
* AM2AL3 또는 K4 바이러스로 세포를 감염시키고 조직 배양 세포의 50%를 감염시키기 위해 요구되는 투여량 (TCID50)을 결정함으로써 각 세포주의 감수성을 결정하였다. |
렉틴-선택된 세포에서 성장에 적응된 바이러스의 복제* | ||||
세포주 | 역가 (TCID50/ml) | |||
AM2AL3 | AL3(MaKS)-13 | K4 | K4(MaKS)-13 | |
MDCK | 1.8 x 109 | 5.6 x 104 | 5.6 x 104 | 5.6 x 104 |
MaKS | 5.6 x 106 | 5.6 x 104 | 1.8 x 103 | 1.8 x 103 |
수지, MDCK 역가/MaKS 역가 | 321 | 1 | 31 | 0.3 |
* AM2AL3 (나에서 성장됨), K4 (MDCK 세포에서 성장됨), AL3(MaKS)-13 (MaK3 세포에서 성장됨), 또는 K4(MaKS)-13 (MaKs 세포에서 성장됨) 원액 바이러스로 세포를 감염시키고 조직 배양 세포의 50%를 감염시키기 위해 요구되는 투여량 (TCID50)을 결정함으로써 각 세포주의 민감성을 결정하였다. MaKS 세포에서 적응된 두 바이러스 모두 상기 세포에서는 MDCK 세포에서 만큼 [AL3(MaKS)-13] 또는 그보다 더욱 양호하게 [K4(MaKS)-13] 성장하나, 원래의 바이러스는 MDCK 세포에서 더욱 양호하게 성장함을 주지한다. |
HA 구조물 | 세포 배양물에서의 특성a) | 상기 유전자를 보유하는 바이러스의 생성b) | 감염된 세포의 상청액 중의 바이러스 역가b) (TCID50/ml) | 원액의 바이러스 역가c)(TCID50/ml) | ||
세포 표면 발현 | 혈구흡착 | 융합 | ||||
야생형 HA | ||||||
WSN-HA | + | + | + | + | 3.2x107 | 6.3 x 107 |
B-HA | + | + | + | - | NAd ) | |
A/B 키메라 HA | ||||||
ANBH | + | + | + | + | 2.0 x 10 | 6.3 x 102 |
ANSBH | + | + | + | + | 1.1 x 102 | 2.0 x 106 |
ANTBH | + | + | + | + | 2.0 x 104 | 6.3 x 106 |
ANSTBH | + | + | + | + | 1.1 x 106 | 3.6 x 106 |
ANBW | + | - | - | - | NA | |
ANSBW | + | - | - | - | NA | |
a) 각각의 HA 구조물을 A형 폴리머라제- 및 NP-발현 플라스미드와 함께 COS-7 세포 내에서 형질감염시켰다. 형질감염후 48시간째에, 각각의 HA의 생물학적 특성을 분석하였다. b) 야생형 또는 키메라 HA 유전자를 다른 인플루엔자 A 바이러스 유전자와 함께 보유하는 바이러스의 생성을 플라스미드계 역 유전학 시스템에 의해 수행하였다. 형질감염후 48시간째에, 형질감염된 294T 세포의 상청액을 수거하고 감염도에 대해 적정하였다. c) 바이러스 원액을 MDCK 세포로 제조하였다. 세포병변 효과가 개선될 때 바이러스를 수거하였다. d) NA: 이용불가능 |
야생형 바이러스 | 기관내 복제b) | 체중 변화율 (%)C) | 치사율 (%)(사멸수/시험된 수) | ||
비개골 | 폐 | 제5일 | 제14일 | ||
A/WSN-R | 5.0±0.3 | 8.2±0.1 | -27.4±1.1 | NAc ) | 100 (8/8) |
B/Lee-R | 4.7±0.1 | 5.6±0.1 | -19.3±7.9 | NA | 87.5 (7/8) |
A/B 키메라 바이러스 | |||||
ANSBH | 4.0±0.3 | 2.8±0.3 | 2.6±1.0 | 4.6±1.2 | 0 (0/8) |
ANTBH | 5.3±0.3 | 4.9±0.1 | -17.3±0.7 | -8.3±0.4 | 0 (0/8) |
ANTSTBH | 5.3±0.4 | 4.6±0.1 | -20.9±0.3 | -6.2±8.8 | 0 (0/8) |
대조군 (PBS)d) | NA | NA | 2.9±1.3 | 7.1±0.2 | 0 (0/8) |
a) 마우스에게 바이러스 (106 TCID50)로 비내 접종하여 14일 동안 모니터링하였다. 체중 변화를 평균치±표준 오차 (SD (n=3))로서 나타내었다. b) 바이러스 역가를 기관내에서 접종후 3일째에 측정하여 log10TCID50/g의 평균치±SD (n=3)로서 나타내었다. c) NA: 이용불가능 d) 대조군 마우스를 인산염-완충 염수로 모의 접종하였다. |
면역화에 사용된 바이러스a) | 챌린지 후b) | ||
체중 변화 (%) | 생존율 (%) | ||
제5일 | 제14일 | (생존자수/시험체수) | |
야생형 바이러스 | |||
A/WSN-R | -17.5±3.6 | NAc ) | 25(2/8) |
B/Lee-R | 1.8±0.9 | 1.4±0.6 | 100 (8/8) |
A/B 키메라 바이러스 | |||
ANSBH | -5.6±0.8 | -0.7±0.7 | 100 (8/8) |
ANSBH | 0.9±0.9 | 1.9±0.9 | 100 (8/8) |
ANSBH | 1.5±0.2 | 2.9±0.7 | 100 (8/8) |
대조군 (PBS)d) | -20.8±0.5 | NA | 0 (0/8) |
a) 마우스들을 나열된 각각의 바이러스로 비강내 감염시켰다. b) 면역화후 제4주에, 마우스를 야생형B/Lee-R 바이러스(50LD50)로 비강내 챌린지시키고, 챌린지후 14일 동안 모니터링하였다. 체중 변화를 평균값 SD (n=3)로 나타냈다. c) NA : 데이타 없음 d) 대조군 마우스를 PBS로 모의-면역화시키고 챌린지시켰다. |
Claims (34)
- a) 인플루엔자 바이러스 HA vRNA의 3' 비코딩 영역, 이종 핵산 절편, 5' HA 혼입 서열, 및 HA vRNA의 5' 비코딩 영역에 상응하는 서열;
b) 인플루엔자 바이러스 M vRNA의 3' 비코딩 영역, 3' M 혼입 서열, 이종 핵산 절편, 5' M 혼입 서열, 및 M vRNA의 5' 비코딩 영역에 상응하는 서열;
c) 인플루엔자 바이러스 NS vRNA의 3' 비코딩 영역, 3' NS 혼입 서열, 이종 핵산 절편, 및 NS vRNA의 5' 비코딩 영역에 상응하는 서열;
d) 인플루엔자 바이러스 PB2 vRNA의 3' 비코딩 영역, 이종 핵산 절편, 5' PB2 혼입 서열, 및 PB2 vRNA의 5' 비코딩 영역에 상응하는 서열;
e) 인플루엔자 바이러스 PB1 vRNA의 3' 비코딩 영역, 이종 핵산 절편, 5' PB1 혼입 서열, 및 PB1 vRNA의 5' 비코딩 영역에 상응하는 서열; 또는
f) 인플루엔자 바이러스 PA vRNA의 3' 비코딩 영역, 이종 핵산 절편, 5' PA 혼입 서열, 및 PA vRNA의 5' 비코딩 영역에 상응하는 서열
을 포함하며, 여기서 벡터에 상응하는 vRNA가 인플루엔자 바이러스 단백질을 발현하고 벡터에 상응하는 vRNA 이외의 vRNA를 포함하는 세포 내에 존재하는 경우에 비리온 내에 패키징되는, 인플루엔자 바이러스 혼입 서열을 포함하는 인플루엔자 바이러스 벡터. - 제1항에 있어서, a)에서 5' HA 혼입 서열이 HA에 대한 80개의 3' 코딩 뉴클레오티드에 상응하는 80개 이상의 뉴클레오티드를 포함하는 것인 벡터.
- 제1항에 있어서, a)에서 5' HA 혼입 서열이 HA에 대한 291개의 3' 코딩 뉴클레오티드에 상응하는 291개 이상의 뉴클레오티드를 포함하는 것인 벡터.
- 제1항에 있어서, a)에서 3' HA 혼입 서열을 추가로 포함하는 벡터.
- 제4항에 있어서, 3' HA 혼입 서열이 HA에 대한 최초 3개의 코딩 뉴클레오티드에 상응하는 3개 이상의 뉴클레오티드를 포함하는 것인 벡터.
- 제4항에 있어서, 3' HA 혼입 서열이 HA에 대한 최초 9개의 코딩 뉴클레오티드에 상응하는 9개 이상의 뉴클레오티드를 포함하는 것인 벡터.
- 제1항에 있어서, 이종 핵산 절편이 내부 리보솜 진입 서열에 상응하는 서열을 포함하는 것인 벡터.
- 제1항에 있어서, 이종 핵산 절편이 마커 유전자에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 벡터.
- 제1항에 있어서, 이종 핵산 절편이 병원체의 면역원성 단백질 또는 펩티드, 또는 치료용 단백질에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 벡터.
- 제1항에 있어서, 혼입 서열이 A형 인플루엔자 바이러스로부터 유래되는 것인 벡터.
- 제1항에 있어서, 혼입 서열이 B형 인플루엔자 바이러스로부터 유래되는 것인 벡터.
- 제1항에 있어서, 이종 핵산 절편이 또다른 핵산 절편에 융합되어 융합 단백질을 코딩하는 것인 벡터.
- 제1항의 벡터에 상응하는 vRNA를 포함하는 재조합 인플루엔자 바이러스.
- 제13항에 있어서, 이종 핵산 절편이 마커 유전자에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 재조합 바이러스.
- 제13항에 있어서, 이종 핵산 절편이 병원체의 면역원성 단백질 또는 펩티드에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 재조합 바이러스.
- 제15항에 있어서, 오픈 리딩 프레임이 HA 단백질을 코딩하는 것인 재조합 바이러스.
- 제15항에 있어서, 오픈 리딩 프레임이 NA 단백질을 코딩하는 것인 재조합 바이러스.
- 제13항에 있어서, 이종 핵산 절편이 막횡단 단백질에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 재조합 바이러스.
- 제13항에 있어서, 이종 핵산 절편이 막 융합 활성을 갖는 단백질에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 재조합 바이러스.
- 제13항에 있어서, 이종 핵산 절편이 바이러스 캡시드 단백질에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 재조합 바이러스.
- 제13항에 있어서, 이종 핵산 절편이 수포성 구내염 바이러스 G 단백질에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 재조합 바이러스.
- 제13항에 있어서, 이종 핵산 절편이 치료용 단백질에 대한 오픈 리딩 프레임에 상응하는 서열을 포함하는 것인 재조합 바이러스.
- 제16항에 있어서, HA 단백질이 B형 HA 단백질인 재조합 바이러스.
- 제13항의 재조합 바이러스와 세포를 접촉시키는 것, 및 이종 핵산 절편에 의해 코딩되는 생성물이 세포에서 발현되는지를 검출 또는 결정하는 것을 포함하는, 세포에서의 이종 핵산 절편의 발현 방법.
- NS의 5' 코딩 영역 및 이종 핵산 절편에 상응하는 인플루엔자 바이러스 NS 혼입 서열을 포함하는 단리된 핵산 분자.
- HA의 3' 코딩 영역 및 이종 핵산 절편에 상응하는 인플루엔자 바이러스 HA 혼입 서열을 포함하는 단리된 핵산 분자.
- PB2의 3' 코딩 영역 및 이종 핵산 절편에 상응하는 인플루엔자 바이러스 PB2 혼입 서열을 포함하는 단리된 핵산 분자.
- M의 3' 코딩 영역 및 M의 5' 코딩 영역, 및 이종 핵산 절편에 상응하는 인플루엔자 바이러스 M 혼입 서열을 포함하는 단리된 핵산 분자.
- 제1항에 있어서, 벡터에 상응하는 vRNA가 세포 내에 존재하는 경우에 상응하는 야생형 vRNA에 비해 10% 이상의 효율로 비리온 내에 패키징되는 것인 벡터.
- 제1항에 있어서, 벡터에 상응하는 vRNA가 세포 내에 존재하는 경우에 상응하는 야생형 vRNA에 비해 30% 이상의 효율로 비리온 내에 패키징되는 것인 벡터.
- 제1항에 있어서, 벡터에 상응하는 vRNA가 세포 내에 존재하는 경우에 상응하는 야생형 vRNA에 비해 60% 이상의 효율로 비리온 내에 패키징되는 것인 벡터.
- a) 야생형 NS 코딩 서열을 갖는 vRNA가 없고 재조합효소에 대한 서열을 포함하는 재조합 인플루엔자 바이러스를 재조합 숙주 세포와 접촉시키며, 여기서 재조합 숙주 세포가 NS2 오픈 리딩 프레임을 포함하지만 재조합효소 5'에 의해 인식되는 2개의 부위-특이적 재조합 서열에 작동가능하게 연결된, NS2 오픈 리딩 프레임에 대한 혼입 서열을 포함하지 않는 재조합 핵산 분자를 포함하고, 재조합효소의 부재하에서는 NS2가 발현되지 않는 단계; 및
b) 재조합 숙주 세포로부터 복제 불능 인플루엔자-유사 바이러스를 단리하는 단계
를 포함하는 복제 불능 인플루엔자-유사 바이러스의 제조 방법. - 제32항에 있어서, 재조합효소가 Cre이고, 부위-특이적 재조합 서열이 loxP 서열인 방법.
- 제32항에 있어서, 재조합효소가 FLP이고, 부위-특이적 재조합 서열이 frt 서열인 방법.
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PCT/US2003/004233 WO2003068923A2 (en) | 2002-02-13 | 2003-02-12 | Signal for packaging of influenza virus vectors |
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