在Vibrio vulnificus感染期间,NLRP3对于巨细胞代谢重编程至关重要
Ye-Lin Jiang1,2,3, Xian-Hui Huang1,2,3, Wen-Hui Zhu1,2,3
1The School of Laboratory Medicine & Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, China.
Microbiology spectrum
|November 5, 2025
概括
类似NOD的受体3 (NLRP3) 驱动巨细胞的糖解和反应性氧物种 (ROS) 在虫感染期间的生产. 缺乏NLRP3可以防止这些代谢变化,突出其在对V. vulnificus的免疫反应中的作用.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞的新陈代谢
- 微生物学 微生物学
背景情况:
- 巨细胞是关键的先天性免疫细胞,对抗感染至关重要.
- 巨细胞激活涉及代谢重编程,特别是糖解.
- 在感染Vibrio vulnificus的过程中,巨细胞的糖分代谢机制尚不清楚.
研究的目的:
- 为了研究NOD类受体3 (NLRP3) 在调节巨细胞的葡萄糖性代谢中的作用,在Vibrio vulnificus感染期间.
- 阐明NLRP3对受感染巨细胞的葡萄糖吸收,糖解和反应性氧物种 (ROS) 生产的影响.
主要方法:
- 使用NLRP3淘汰 (KO) 巨细胞系和初级细胞.
- 进行了非向的代谢流量分析.
- 评估葡萄糖摄入量,乳酸释放量和ROS产量.
主要成果:
- 杆菌感染上调葡萄糖吸收,有氧糖解,乳酸释放和巨细胞中ROS的产生.
- 这些代谢变化在NLRP3 KO巨细胞中被废除.
- 在受感染的NLRP3KO巨细胞中观察到果糖1,6-双和3-糖酸的水平降低,可能是由于PFKL活性降低.
结论:
- NLRP3在调节免疫代谢反应对Vibrio vulnificus感染方面发挥着至关重要的作用.
- NLRP3通过驱动巨细胞糖解和增加ROS产量来促进炎症.
- NLRP3 是一个关键的调解者,它将免疫细胞代谢与对抗V. vulnificus的防御联系起来.
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