在Candida感染期间,TRIM26通过调节炎性中性粒细胞透来缓解致命的免疫病理
Guimin Zhao1,2, Yanqi Li1,2, Tian Chen1,3
1Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong, P.R. China.
PLoS pathogens
|January 2, 2024
概括
E3结合酶Trim26通过限制炎症反应,在抗真菌免疫中起着至关重要的作用. 缺少Trim26会增加对疹症等真菌感染的易感性.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 菌类学 菌类学是指菌类学.
背景情况:
- 真菌感染构成重大威胁,尤其对免疫力低下的人来说,每年造成数百万人的死亡.
- 了解抗真菌免疫的调节对于开发有效治疗方法至关重要.
- E3结合酶Trim26 (含三部分基因蛋白26) 涉及到各种免疫反应.
研究的目的:
- 调查Trim26在抗真菌免疫中的作用.
- 阐明Trim26影响宿主对真菌感染反应的机制.
主要方法:
- 使用Trim26缺乏的小鼠和野生类型的对应物进行比较研究.
- 用Candida物种感染的小鼠来评估易感性和免疫反应.
- 分析了中性粒细胞透,细胞因子和化学因子的产生,以及脏中的真菌负荷.
- 评估中性粒细胞的杀菌活性和细胞因子表达 in vitro.
主要成果:
- 缺乏Trim26的小鼠对真菌病和候群病的易感性增加.
- Trim26限制了过度的炎症性中性粒细胞透和脏中的炎症性细胞因子产生.
- 缺少Trim26导致化学因子CXCL1和CXCL2的水平升高,促进了中性粒细胞的招募.
- 缺少Trim26的中性粒细胞表现出杀菌活性受损和炎症性细胞因子表达的增加.
结论:
- Trim26对于保护性抗真菌免疫对抗坎迪达菌感染至关重要.
- Trim26通过控制炎症性中性粒细胞透和细胞因子/化学因子表达来调节抗真菌反应.
- 准Trim26可能为治疗真菌感染提供一种新的治疗策略.
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