A novel HIV vaccine targeting the protease cleavage sites.

A novel HIV vaccine targeting the protease cleavage sites.
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DOI:
10.1186/s12981-017-0174-7
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发表时间:
2017-09-12
影响因子:
2.2
通讯作者:
Luo M
Luo M
中科院分区:
医学3区
文献类型:
--
作者:
Li H;Omange RW;Plummer FA;Luo M

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HIV优先感染活化的CD4+T细胞并迅速突变。旨在对完整 HIV 蛋白产生广泛免疫反应的经典疫苗方法在很大程度上未能解决作为病毒靶点的激活 CD4+ T 细胞数量增加的潜在不利影响。根据在一群对艾滋病毒有抵抗力的肯尼亚女性性工作者中观察到的自然免疫力,我们正在测试一种新的疫苗方法。它将免疫反应集中于 HIV 蛋白酶切割位点 (PCS) 周围高度保守的序列,以破坏病毒成熟,同时限制过度的免疫激活。我们使用非人灵长类 SIV 感染模型进行的初步研究表明,这种方法是可行且有前途的。
HIV preferentially infects activated CD4+ T cells and mutates rapidly. The classical vaccine approach aimed to generate broad immune responses to full HIV proteins largely failed to address the potential adverse impact of increased number of activated CD4+ T cells as viral targets. Learning from natural immunity observed in a group of HIV resistant Kenyan female sex workers, we are testing a novel vaccine approach. It focuses immune response to the highly conserved sequences surrounding the HIV protease cleavage sites (PCS) to disrupt viral maturation, while limiting excessive immune activation. Our pilot studies using nonhuman primate SIV infection models suggest that this approach is feasible and promising.
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