Hsa_circular RNA_0045474 通过调节microRNA-485-3p和增强转录因子4促进骨关节炎
ZhenXing Zhang1, PingHua Yu2, LinGang Bai3
1Department of Orthopaedics II, Haining People's Hospital, Haining, 314400, Zhejiang, China.
Molecular biotechnology
|January 11, 2024
概括
循环RNAcirc_0045474在骨关节炎 (OA) 中升高,并推动疾病的进展. 抑制circ_0045474可以在体外和体内缓解骨质炎,这表明它是潜在的治疗点.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 整形外科 整形外科 整形外科
背景情况:
- 骨关节炎 (OA) 是一种具有复杂病理机制的退行性关节疾病.
- 循环RNAs (circRNAs) 正在成为OA病原和潜在的诊断标记物的关键参与者.
- 了解特定circRNAs (如circ_0045474) 的作用,对于开发有针对性的OA疗法至关重要.
研究的目的:
- 为了调查circ_0045474和骨关节炎 (OA) 之间的关联.
- 阐明circ_0045474对OA进展的影响背后的分子机制.
- 评估circ_0045474作为OA的潜在治疗点.
主要方法:
- 从OA患者收集了临床样本,并检查了circRNA表达.
- 使用IL-1β激发在体外建立了OA冠状细胞模型.
- 使用OA小鼠模型,通过前交叉带切割创建,用于体内验证.
- 我们分析了circ_0045474,miR-485-3p,TCF4,COL2A1和MMP13.3的表达.
- 研究的细胞活动和涉及circ_0045474,miR-485-3p和TCF4.4.的调节轴.
主要成果:
- Circ_0045474表达在OA患者和软骨细胞中显著上调.
- 抑制circ_0045474减弱的IL-1β诱导的细胞外基质降解,炎症性细胞因子释放和状细胞亡.
- Circ_0045474作为miR-485-3p的分子海绵,TCF4被确定为miR-485-3p的目标.
- 该circ_0045474/miR-485-3p/TCF4轴调节了与OA相关的细胞过程.
- 在小鼠模型中,抑制circ_0045474有效缓解了OA的进展.
结论:
- Circ_0045474通过调节细胞外基质降解,炎症和亡,在促进OA病变发生方面发挥着至关重要的作用.
- 已确定的miR-485-3p/TCF4轴是circ_0045474的OA效应的关键媒介.
- Circ_0045474代表了一种有前途的新型治疗关节炎治疗标.
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