MARCH8介导的无处可见性调节了抗病毒蛋白IFITM3的表达
Liang Wei1, Fei Zhao1, Xiaoman Liu1
1Key Laboratory of Pathogen Infection Prevention and Control (Ministry of Education), State Key Laboratory of Respiratory Health and Multimorbidity, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China; NHC Key Laboratory of Systems Biology of Pathogens, National Institute of Pathogen Biology and Center for AIDS Research, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
膜相关的RING-CH 8 (MARCH8) E3结合酶针对抗病毒蛋白IFITM3进行降解. 这一过程增强了病毒的进入,揭示了天生的免疫调节的新机制.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 病毒学 病毒学
背景情况:
- 膜相关的RING-CH (MARCH) E3链酶调节蛋白质的稳定性和天生的免疫力.
- 干扰素诱导的跨膜蛋白3 (IFITM3) 是一种关键的抗病毒效应蛋白.
研究的目的:
- 为了识别MARCH8.8的新基质.
- 阐明MARCH8调节IFITM3.3的机制.
- 为了确定MARCH8-IFITM3相互作用对抗病毒反应的功能后果.
主要方法:
- 共同免疫沉试验.
- 液体染色学-双重质谱法 (LC-MS/MS). 这是一个很好的方法.
- 在野生类型和MARCH8-Knockout细胞中,西部斑点和免疫光.
主要成果:
- IFITM3被确定为MARCH8.8的一个新基质.
- MARCH8在氨酸24中调解IFITM3的K63结合的多比基化,促进了 lysosomal 降解.
- 3月8日缺乏导致IFITM3在血膜积累,并增加对病毒感染的易感性.
- MARCH8表达减弱IFITM3介导的囊泡性口炎病毒和流感A病毒的限制.
结论:
- 3月8日规定了抗病毒蛋白IFITM3.3的贩运和营业额.
- 这种相互作用代表了MARCH8调节天生的免疫力的新机制.
- MARCH8在控制细胞对病毒病原体的敏感性方面发挥着至关重要的作用.
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