A novel Chimpanzee serotype-based adenoviral vector as delivery tool for cancer vaccines

被引:40
作者
Peruzzi, Daniela [1 ]
Dharmapuri, Sridhar [1 ]
Cirillo, Agostino [1 ]
Bruni, Bruno Ercole [1 ]
Nicosia, Alfredo [2 ]
Cortese, Riccardo [2 ]
Colloca, Stefano [2 ]
Ciliberto, Gennaro [1 ]
La Monica, Nicola [1 ]
Aurisicchio, Luigi [1 ]
机构
[1] IRBM, Merck Res Labs, Oncol Funct Dept, I-00040 Rome, Italy
[2] Okairos, I-00040 Rome, Italy
关键词
Adenovirus; Vaccination; Tumor immunity; T-CELL RESPONSE; CARCINOEMBRYONIC ANTIGEN; RECOMBINANT ADENOVIRUS; IMMUNE-RESPONSE; NONHUMAN-PRIMATES; NEUTRALIZING ANTIBODIES; ANTI-AD5; IMMUNITY; TRANSGENIC MICE; RHESUS-MONKEYS; GENE-TRANSFER;
D O I
10.1016/j.vaccine.2008.12.051
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The use of adenovirus (Ad) as vaccine vectors is hindered by pre-existing immunity to human Ads in most of the human population. In order to overcome this limitation, uncommon alternative Ad serotypes need to be utilized, In this study, an E1-E3 deleted recombinant Ad based on the chimpanzee serotype 3 (ChAd3) was engineered to express human carcinoembryonic antigen (CEA) protein or rat neu extracellular/transmembrane domains (ECD.TM). ChAd3 vectors were tested in CEA transgenic (CEA.Tg) and BALB/NeuT mice, which show immunologic tolerance to these antigens. ChAd3 is capable of inducing an immune response comparable to that of hAd5 serotype-based vectors, thus breaking tolerance to tumor associated antigens (TAAs) and achieving anti-tumor effects. Of importance is that ChAd3 can overcome hAd5 pre-existing immunity and work in conjunction with DNA electroporation (DNA-EP) and other Ad vaccines based on common human serotypes. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1293 / 1300
页数:8
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