一项对宿主基因表达的队列研究:与艾滋病毒储存库大小相关的瘤抑制剂和先天免疫/炎症途径
Ashok K Dwivedi1, Germán G Gornalusse2,3, David A Siegel1
1Department of Medicine, Division of HIV, Infectious Diseases & Global Medicine, University of California, San Francisco, California, United States of America.
PLoS pathogens
|November 29, 2023
概括
研究人员确定了与艾滋病毒感染者 (PWH) 艾滋病毒存储库大小相关的宿主基因. 瘤抑制基因P3H3和NBL1的更高表达与较小的病毒DNA储库相关,为艾滋病毒的持久性提供了新的见解.
科学领域:
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
- 病毒学 病毒学
背景情况:
- 持续的HIV储存是治愈的主要障碍,避免了抗逆转录病毒疗法 (ART).
- 有限的研究已经探索了影响艾滋病毒储库大小和活动的宿主遗传和转录组因素.
研究的目的:
- 研究宿主基因表达作为艾滋病毒储库大小和艾滋病毒感染者 (PWH) 转录活性的预测因子.
- 识别与总DNA,未拼接RNA和完整的HIVDNA储存器相关的特定宿主基因.
主要方法:
- 宿主RNA测序在来自191个ART抑制PWH的CD4+T细胞上进行.
- 艾滋病毒储备量化包括总DNA (tDNA),未拼接RNA (usRNA) 和完整的DNA.
- 经过统计分析,调整了诸如CD4+数和遗传血统等共变量.
主要成果:
- 瘤抑制基因P3H3和NBL1的更高表达与较小的tDNA病毒储库大小有关.
- 低17个宿主基因的表达,包括那些参与膜通道,炎症体和先天免疫的基因,与较高的残留HIV转录 (usRNA) 相相关.
- 基因组丰富揭示了与TLR4,IL-1/NLRP3炎症体和IL-10信号通路的关联;血IL-10也与HIVDNA相反相关.
结论:
- 主体基因表达模式与转录活性的HIV储存体有关.
- 瘤抑制基因表达可能会影响艾滋病毒DNA储存库的整体大小.
- 天生的免疫和与炎症体相关的基因表达与残留的HIV转录有关,这表明潜在的治疗点.
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