Design and evaluation of multi-gene, multi-clade HIV-1 MVA vaccines.

Design and evaluation of multi-gene, multi-clade HIV-1 MVA vaccines.
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DOI:
10.1016/j.vaccine.2009.07.039
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发表时间:
2009-09-25
期刊:
影响因子:
5.5
通讯作者:
Cox JH
Cox JH
中科院分区:
医学3区
文献类型:
--
作者:
Earl PL;Cotter C;Moss B;VanCott T;Currier J;Eller LA;McCutchan F;Birx DL;Michael NL;Marovich MA;Robb M;Cox JH

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表达HIV-1基因的重组改良安卡拉痘苗病毒(rMVA)是有希望的疫苗候选者。为了用一种重组病毒或混合重组病毒进行临床试验,构建了4种表达env和gag-pol基因的rMVA,这些基因来自代表肯尼亚、坦桑尼亚、乌干达和泰国主要亚型的HIV-1原代分离株(分别为A、C、D和CRF01_AE)。Env和Gag的高效表达、加工和功能得到证实。所有插入的基因在细胞培养物中反复传代后显示出遗传稳定性。在用每种候选疫苗免疫的小鼠中引起强烈的HIV特异性细胞和体液免疫应答。表达CRF01_AE基因的MVA/CMDR候选疫苗在两项独立的I期临床试验中引发了HIV特异性T细胞应答。需要对其他rMVA进行进一步检测。
Recombinant modified vaccinia virus Ankara (rMVA) expressing HIV-1 genes are promising vaccine candidates. Toward the goal of conducting clinical trials with one or a cocktail of recombinant viruses, four rMVAs expressing env and gag-pol genes from primary HIV-1 isolates representing predominant subtypes from Kenya, Tanzania, Uganda, and Thailand (A, C, D, and CRF01_AE, respectively) were constructed. Efficient expression, processing, and function of Env and Gag were demonstrated. All inserted genes were shown to be genetically stable after repeated passage in cell culture. Strong HIV-specific cellular and humoral immune responses were elicited in mice immunized with each individual vaccine candidate. The MVA/CMDR vaccine candidate expressing CRF01_AE genes has elicited HIV-specific T-cell responses in two independent Phase I clinical trials. Further testing of the other rMVA is warranted.
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