miR-149-5p通过抑制TRADD减轻瘤缩因子-α诱导的慢性细胞亡
Shi-Cheng Xie1, Lin Yang2, Taipengfei Shu3
1Department of Joint Surgery, the Affiliated Hospital of Jining Medical University, Jining, China.
Archives of medical science : AMS
|May 17, 2024
概括
微RNA-149-5p通过抑制TRADD调节的酶信号传递,减少状细胞亡和炎症来保护骨关节炎. 这一途径为治疗骨关节炎提供了潜在的治疗点.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 骨关节炎 (OA) 的特征是慢性细胞亡和软骨退化.
- 瘤坏死因子-α (TNF-α) 在诱导OA中的状细胞亡中发挥着重要作用.
研究的目的:
- 研究微RNA-149-5p (miR-149-5p) 在TNF-α诱导的状细胞亡中的作用.
- 阐明涉及TRADD和酶信号的潜在分子机制.
主要方法:
- 使用TNF-α.建立一个体外冠状细胞亡模型.
- 与miR-149-5p模仿或TRADD表达载体的传染.
- 通过CCK8,Annexin V-FITC,ELISA,RT-qPCR和西式涂抹,评估细胞活力,细胞亡,炎症性细胞因子和蛋白质/mRNA表达.
主要成果:
- 由于TNF-α诱导的慢性细胞亡,炎症,并激活TRADD和caspase-3/8信号传导.
- TRADD被确定为miR-149-5p的直接标,miR-149-5p的过度表达降低了TRADD的调节.
- miR-149-5p模仿了减弱的TNF-α诱导的亡和炎症,而TRADD过度表达则抵消了这些保护作用.
结论:
- miR-149-5p通过降低TRADD调节和调节酶信号来抑制TNF-α介导的胆细胞损伤.
- 该miR-149-5p/TRADD途径为骨关节炎治疗提供了潜在的治疗点.
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