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卡斯巴-1缺乏会减轻小鼠的HIV-1相关异构发生
Mohammad Afaque Alam1,2, Maurizio Caocci3, Mi Ren1,2
1Department of Comparative Pathology, Tulane National Primate Research Center, Tulane University School of Medicine, Tulane University, 18703 Three Rivers Road, Covington, LA 70433, USA.
International journal of molecular sciences
|August 26, 2023
概括
艾滋病毒感染导致炎症和免疫激活,促进动脉样硬化. 卡斯帕酶-1缺乏显著减少了斑块的积累和巨细胞的透,突出显示了它在艾滋病毒中起的异位性作用.
科学领域:
- 免疫学 免疫学 免疫学
- 心血管生物学 心血管生物学
- 传染性疾病 传染性疾病
背景情况:
- 艾滋病毒感染诱导动脉斑炎症和免疫激活.
- 骨髓细胞中的卡斯帕-1激活与与HIV相关的动脉样硬化有关.
- 在艾滋病毒相关动脉样硬化中,caspase-1的直接作用需要进行机制性检查.
研究的目的:
- 机械地研究caspase-1对艾滋病毒相关动脉样硬化的直接作用.
- 在HIV感染的背景下,确定caspase-1在斑块沉积,炎症和免疫细胞透中的作用.
主要方法:
- 通过交叉相关的小鼠模型,生成了全球caspase-1-缺乏的小鼠 (Tg26-/-/ApoE-/-/Casp-1-/-).
- 通过将被辐射的ApoE-/-小鼠与来自caspase-1缺乏或足够的捐赠者的骨髓复合而创建的嵌合体小鼠.
- 在外围单核细胞和细胞上进行了转录基因分析.
主要成果:
- 全球caspase-1淘汰赛抑制了胸前大动脉斑块沉积,血清IL-18水平和ex vivo泡细胞形成.
- 造血细胞中卡斯帕-1缺乏减少了动脉样硬化斑块负担和巨细胞透.
- 转录组分析显示,在缺乏caspase-1的小鼠中,caspase-1通路相关基因受到抑制.
结论:
- 卡斯巴酶-1在慢性艾滋病毒感染中起着关键的动脉动脉生成作用.
- 卡斯巴酶-1通路和外周免疫激活与艾滋病毒相关的动脉样硬化有关.
- 向caspase-1可能为艾滋病毒相关的心血管并发症提供治疗潜力.
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