EZH2/miR-142-3p/HMGB1轴通过调节膝关节骨关节炎中的内分泌网膜应激来调节状细胞灭
Yang Chen1, Shanshan Dong2, Xin Zeng1
1Department of Orthopedic Surgery & Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
Chinese medical journal
|December 20, 2024
概括
一个涉及EZH2,miR-142-3p和HMGB1的新途径调节膝关节骨关节炎 (OA) 冠状细胞中的内质网膜应激和热,为软骨退化提供潜在的治疗点.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 膝关节骨关节炎 (OA) 在预防和治疗方面存在重大挑战.
- 增强的内等质网膜 (ER) 应激和细胞中的热死与软骨退化有关.
- 连接ER压力和状细胞烧灭的上游调节机制在很大程度上仍未得到研究.
研究的目的:
- 为了研究ER应激对状细胞烧灭的作用.
- 阐明在OA中ER压力和热的上游调节机制.
- 确定OA的潜在治疗点.
主要方法:
- 通过分子和细胞测定,研究了EZH2,miR-142-3p和HMGB1的表达,以及正常和OA冠状细胞中的ER压力和烧亡标记.
- 通过分子相互作用研究分析了EZH2,miR-142-3p和HMGB1对ER压力和热的作用,以及它们的调节层次.
- 在手术诱导的OA的老鼠模型中验证了机制性贡献和治疗前景.
主要成果:
- 甲状腺冠状细胞表现出增加的EZH2和HMGB1,减少miR-142-3p,增强ER压力,并激活活体.
- EZH2和HMGB1加剧了ER压力和热,而miR-142-3p缓解了这些过程.
- EZH2转录性沉默了miR-142-3p,后转录性沉默了HMGB1;ER压力调解了这些效应.
结论:
- 一个新的EZH2/miR-142-3p/HMGB1轴调节了OA中的ER压力和状细胞烧灭.
- 这个轴有助于软骨退化,并提供了对关节炎病原体的新机制性见解.
- 识别的轴呈现了OA治疗的潜在治疗点.
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