p62 结合蛋白激酶C 调节HIV-1 gp120 V3 循环诱导的微质炎症
Huili Wang1, Qin Zuo1, Xinyi Li1
1Department of Pathophysiology, Key Laboratory of the State Administration of Traditional Chinese Medicine, Medical College of Jinan University, Guangzhou, Guangdong Province, China.
Inflammation
|December 28, 2024
概括
这项研究揭示了p62和蛋白激酶C (PKC) 在HIV-1 gp120 V3循环诱导的微质炎症中的相互作用,为HIV相关的神经认知障碍 (HAND) 提供了新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 与艾滋病毒相关的神经认知障碍 (HAND) 涉及微质炎症,但确切的机制尚不清楚.
- 艾滋病毒-1 gp120 V3循环触发微质炎症,而p62与神经炎症调节有关.
- 了解这些途径对于开发有效的HAND治疗至关重要.
研究的目的:
- 阐明p62的作用及其与蛋白激酶C (PKC) 在HIV-1 gp120 V3循环诱导的微质炎症中的相互作用.
- 调查IKK/NF-κB信号通路在这种炎症过程中的参与.
- 确定潜在的治疗点,以减轻与HAND相关的神经炎症和神经元亡.
主要方法:
- 利用CHME-5微质中的p62淘汰和过度表达来评估炎症标记物表达 (MCP-1,IL-6,COX-2).
- 通过淘汰赛实验研究了PKC和TRAF6的作用,并分析了IKK/NF-κB通路的激活.
- 采用共免疫沉来确认p62和PKC之间的相互作用. 在共同培养模型中评估神经元亡.
主要成果:
- p62淘汰会减少炎症标志物和微质激活,而过度表达会加剧它们.
- PKC淘汰抑制了炎症标志物和IKK/NF-κB通路激活; TRAF6淘汰没有显著的影响.
- p62直接与PKC结合和相互作用,通过IKK/NF-κB通路调解炎症.
- 抑制IKK/NF-κB降低了炎症标志物,降低了Caspase-3表达,并减弱了神经元亡.
结论:
- 艾滋病毒-1 gp120 V3循环诱导的微质炎症由p62-PKC相互作用中介,激活IKK/NF-κB信号通路.
- 这种途径有助于神经元的亡,突出显示了它在HAND病变发生过程中的重要性.
- 准p62-PKC相互作用或IKK/NF-κB通路是预防和治疗HAND的一个有希望的策略.
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