通过对FOXM1的上调调节,RNA结合蛋白HNRNPD促进了状细胞衰老和骨关节炎的进展
Huanyu Jiang1,2, Yubiao Zhang1,2, Geliang Hu1,2
1Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China.
Communications biology
|December 24, 2024
概括
异质核核核糖核蛋白D (HNRNPD) 通过增加衰老的冠状细胞来促进骨关节炎 (OA). 上调HNRNPD通过促进线粒体功能障碍和FOXM1表达来加剧OA.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 类风湿病学 类风湿病学
背景情况:
- 骨关节炎 (OA) 是一种常见的与年龄相关的关节疾病,其特点是衰老的冠状细胞.
- 异质核核核糖核蛋白D (HNRNPD) 的不平衡表达,一种RNA结合蛋白,与细胞衰老有关.
- HNRNPD在OA病变发生过程中的特定作用仍未得到研究.
研究的目的:
- 调查HNRNPD在冠状细胞衰老和骨关节炎发展中的作用.
- 阐明HNRNPD影响OA病理学的分子机制.
主要方法:
- 在OA软骨模型 (老鼠和人类) 中分析HNRNPD表达.
- 在实验性OA模型中使用复合腺相关病毒 (rAAV) 过度表达HNRNPD.
- 调查下游目标,包括FOXM1,并评估线粒体功能.
主要成果:
- 在OA诱导的老鼠和人类软骨中,HNRNPD表达显著升高.
- HNRNPD过度表达加剧了实验性OA,并促进了状细胞衰老和线粒体功能障碍.
- HNRNPD直接对FOXM1进行了上调,FOXM1是其衰老效应的关键媒介.
结论:
- RNA结合蛋白HNRNPD促进了骨关节炎病理中的冠状细胞衰老.
- HNRNPD通过调节FOXM1来加剧OA,导致线粒体功能障碍.
- 准HNRNPD或FOXM1可能为骨关节炎提供治疗策略.
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