单碳酸转运体4抑制降低了突细胞的过度扩散和新陈代谢重编程,在类风湿性关节炎的低氧下
Meican Ma1, Ting Liu1, Haifeng Chen1
1The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, China.
Archives of medical research
|August 19, 2025
概括
抑制单碳酸转运体4 (MCT4) 通过改变细胞代谢来减少类风湿性关节炎 (RA) 的突增殖. 这项研究揭示了MCT4作为RA治疗的关键标.
科学领域:
- 类风湿病学 类风湿病学
- 细胞生物学 细胞生物学
- 代谢研究研究 代谢研究
背景情况:
- 类风湿性关节炎 (RA) 的特点是酸性缺氧条件促进突纤维细胞的增殖.
- 单碳酸盐载体4 (MCT4) 对于通过乳酸出口调节pH值和纤维细胞激活至关重要.
研究的目的:
- 研究MCT4抑制对RA的影响.
- 阐明MCT4在RA病变发生过程中的作用的基本机制.
主要方法:
- 用siMCT4和选择性MCT4抑制剂 (VB124) 治疗RA-FLS细胞.
- 进行了HIF1-α结合的代谢分析 (LC-MS) 和ChIP-qPCR.
- 在一个原诱导关节炎 (CIA) 模型中评估了治疗效果.
主要成果:
- 抑制MCT4降低了RA的突突增殖和改变了细胞代谢,降低了葡萄糖消耗和乳酸生产.
- 代谢重编程包括增加的烟酸盐,酸盐和酸盐,减少的葡萄糖-6-酸盐和酸盐.
- 抑制MCT4改善了线粒体功能,降低了氧化应激; HIF1-α被确定为MCT4的直接调节者.
结论:
- MCT4是RA纤维细胞增殖的中央调节者.
- 向MCT4是一个有前途的治疗策略,用于类风湿性关节炎.
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