Into the wild: simian immunodeficiency virus (SIV) infection in natural hosts.

Into the wild: simian immunodeficiency virus (SIV) infection in natural hosts.
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DOI:
10.1016/j.it.2008.05.004
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发表时间:
2008-09
影响因子:
16.8
通讯作者:
Apetrei C
Apetrei C
中科院分区:
医学1区
文献类型:
--
作者:
Pandrea I;Sodora DL;Silvestri G;Apetrei C

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确定病原性艾滋病毒和猴免疫缺陷病毒(SIV)感染和非进行性SIV在自然的非洲灵长类宿主之间的区别可能提供关键的见解艾滋病毒的发病机制。与人类的致病性HIV感染相似,天然SIV感染导致病毒高度复制和粘膜CD4+ T细胞的大量急性消耗。天然SIV感染的一个关键区别是快速发展的抗炎环境,其防止T细胞的慢性活化、凋亡和增殖,并保留其他免疫细胞亚群的功能,从而有助于粘膜屏障的完整性和缺乏从肠道到腹膜的微生物易位。在自然SIV感染期间观察到的免疫学特征提示了设计用于生产新型第二代疫苗的新策略的方法和抑制HIV感染者疾病进展的治疗方法。
Identifying distinctions between pathogenic HIV and simian immunodeficiency virus (SIV) infections and nonprogressive SIV in natural African primate hosts might provide key insights into HIV pathogenesis. Similar to pathogenic HIV infection in humans, natural SIV infections result in high viral replication and massive acute depletion of mucosal CD4+ T-cells. A key distinction of natural SIV infections is a rapidly-developing anti-inflammatory milieu that prevents chronic activation, apoptosis and proliferation of T-cells and preserves the function of other immune cell subsets, thus contributing to the integrity of the mucosal barrier and the lack of microbial translocation from the gut to the peritoneum. Immunologic features observed during natural SIV infections suggest approaches for designing new strategies for producing novel second generation vaccines and therapeutic approaches to inhibit disease progression in HIV-infected humans.
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