乳化基因LDHA和LDHC通过减少特定B细胞表达来缓解骨关节炎:机械探索和实验验证
Jingkai Di1,2, Zijian Guo1, Yijing Di3
1Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, China.
Journal of cellular and molecular medicine
|December 3, 2025
概括
乳酸脱酶A (LDHA) 和C (LDHC) 基因在膝关节骨关节炎 (KOA) 中被下调. 恢复它们的表达通过影响B淋巴细胞活性来保护KOA的进展.
科学领域:
- 生物化学 生物化学
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
背景情况:
- 膝关节骨关节炎 (KOA) 是一种具有复杂遗传和分子基础的退行性关节疾病.
- 乳化是一种后翻译性修饰,越来越多地被认为是它在各种生物过程中的作用,包括炎症和疾病.
- 了解影响KOA病变的遗传因素对于开发有效的治疗策略至关重要.
研究的目的:
- 为了研究乳化相关基因与膝关节骨关节炎 (KOA) 的进展之间的关联.
- 鉴定特定的乳化相关基因,这些基因可能成为KOA.的潜在治疗点.
- 阐明这些基因影响KOA发育的潜在分子机制.
主要方法:
- 全基因组关联研究 (GWAS) 和表达量化特征位置 (eQTL) 数据集成.
- 门德尔随机化 (MR) 和基于总结数据的MR分析以评估因果关系.
- 在体外验证使用RNA-sequencing (RNA-seq),Western blotting (WB) 和量化逆转录酶PCR (qRT-PCR) 在红细胞中.
- 功能性测试包括CCK-8,Transwell迁移和划痕测试.
- 调解分析以探索下游的分子通路.
主要成果:
- 乳酸脱酶A (LDHA) 和乳酸脱酶C (LDHC) 基因表达在KOA组显著下调.
- 下调LDHA或LDHC抑制了冠状细胞的增殖和迁移,模仿KOA表型.
- 恢复LDHA和LDHC的表达可以逆转这些抑制作用.
- 调解分析确定了CD38在特定B淋巴细胞子集上的CD38作为LDHA和LDHC对KOA的保护作用的关键调解者.
结论:
- 已确定LDHA和LDHC是关键的乳化相关基因,与KOA进展相关.
- 这些基因通过影响状细胞功能和B淋巴细胞活性,对KOA起着保护作用.
- LDHA和LDHC代表了开发新型KOA治疗的有希望的治疗点.
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