对调节早期HIV-1复制的宿主-病原体相互作用的全球分析
Renate König1, Yingyao Zhou, Daniel Elleder
1Infectious & Inflammatory Disease Center, Burnham Institute for Medical Research, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.
Cell
|October 16, 2008
概括
这项研究绘制了200多个对人类免疫缺陷病毒 (HIV) 复制至关重要的宿主因素的地图,揭示了关键蛋白质复合体和影响病毒DNA合成和集成的新细胞标.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 人类免疫缺陷病毒 (HIV-1和HIV-2) 依赖宿主细胞机械进行复制.
- 了解这些病毒与宿主相互作用对于开发抗病毒策略至关重要.
研究的目的:
- 为HIV-1建立一个全面的宿主-病原体生物化学网络.
- 确定调节HIV-1感染早期阶段的宿主因素,包括病毒DNA合成和整合.
主要方法:
- 用全基因组siRNA查来确定宿主因素.
- 人类互动基因组数据库被查询以建立宿主-病原体网络.
- 分析的重点是蛋白质复合体,涉及到ubiquitin结合,蛋白质溶解,DNA损伤反应和RNA剪接.
主要成果:
- 组建了一个由213个宿主细胞因子和11个HIV-1蛋白质组成的网络.
- 调节乌比奎结合,蛋白质溶解,DNA损伤反应和RNA拼接的关键蛋白质复合体被确定为早期HIV-1感染的关键.
- 发现超过40种新型因素,包括细胞骨蛋白和核酸结合蛋白,可以影响HIV-1DNA合成.
- 15种参与核运输,无处不在和转录的蛋白质被证明会影响核进口和病毒DNA集成.
结论:
- 一种多层次的方法揭示了复杂的多蛋白病毒与宿主相互作用,这对于早期的HIV-1感染至关重要.
- 已识别的宿主因素代表了针对艾滋病毒的新型治疗干预措施的潜在目标.
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