在子中的HIV-1诱导的艾滋病
Theodora Hatziioannou1, Gregory Q Del Prete2, Brandon F Keele2
1Aaron Diamond AIDS Research Center, 455 First Avenue, New York, NY 10016, USA. thatziio@adarc.org vineet.kewalramani@nih.gov lifsonj@mail.nih.gov pbienias@adarc.org.
概括
在中适应人类免疫缺陷病毒1型 (HIV-1) 使它能够克服宿主限制并引起艾滋病. 早期的免疫调节大大改变了疾病的进展,突出了艾滋病病变的因素.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 灵长类动物模型
背景情况:
- 灵长类的lentiviruses具有狭窄的宿主热带,限制了动物病,但阻碍了艾滋病动物模型的发展.
- 了解HIV-1跨物种传播障碍对于开发有效干预措施和模型至关重要.
研究的目的:
- 调查限制跨物种人类免疫缺陷病毒1型 (HIV-1) 传播的因素.
- 在模型中适应HIV-1,以克服宿主限制因素并研究艾滋病的病原性.
主要方法:
- 在猪尾中传递一种改性HIV-1,在急性感染期间出现过渡性CD8 ((+) 细胞枯竭.
- 在四个通道上监测病毒适应,复制水平和宿主免疫反应.
主要成果:
- 艾滋病毒-1 适应对抗的tetherin,一个关键的限制因素.
- 适应的HIV-1在更高的水平上复制,导致显著的CD4 ((+) T细胞枯竭和艾滋病定义条件.
- 在急性感染期间,短暂的CD8 ((+) 细胞枯竭导致了艾滋病的快速进展,与未经治疗的对照人群不同,这些对照人群表现出精英控制者表型.
结论:
- 一种适应的HIV-1菌株可以在中诱导艾滋病,证明了动物性疾病的潜力.
- 早期的免疫性干扰,如CD8(+) 细胞枯竭,深刻影响HIV-1疾病的进展和结果.
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