循环THBS1通过海绵化miR-18a-5p和与CTGF相互作用来加剧腹膜纤维化
Yanhong Guo1, Silu Zhao1, Xuewen Zhang1
1Department of Nephropathy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, People' s Republic of China.
The international journal of biochemistry & cell biology
|January 25, 2026
概括
循环RNAs (circRNAs) 参与腹纤维化,这是腹透析 (PD) 的并发症. 这项研究将circTHBS1确定为关键参与者,证明其作为治疗腹膜纤维化治疗的治疗点的潜力.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 腎臟醫學 腎臟醫學
背景情况:
- 腹膜纤维化是长期腹膜透析 (PD) 的重要并发症.
- 已知循环RNAs (circRNAs) 参与器官纤维化.
- 围纤维化进展中circRNAs的特定作用以前尚不清楚.
研究的目的:
- 为了研究circRNAs在腹纤维化发展中的作用.
- 阐明围纤维化中circRNA参与的潜在分子机制.
主要方法:
- 来自PD患者的腹膜间皮质细胞中的circRNA表达概况.
- 在细胞系中使用基因沉默和过度表达的circTHBS1的功能研究.
- 在PD小鼠模型中的体内验证,通过AAV输送进行circTHBS1敲击.
- 对分子标记物和腹功能进行分析.
主要成果:
- 在PD患者中,CircTHBS1显著上调,并与纤维化标志物 (纤维素,α-SMA,CTGF) 相相关.
- 沉默circTHBS1在体外抑制了表皮细胞-介质细胞转换 (EMT) 并在体内减轻了腹膜纤维化.
- 循环THBS1将miR-18a-5p进行海绵,释放CTGF的抑制,并提高CTGF的稳定性.
结论:
- 在通过miR-18a-5p/CTGF轴促进腹纤维化方面,CircTHBS1起着至关重要的作用.
- CircTHBS1代表了一种潜在的治疗点,用于治疗PD患者的腹膜纤维化.
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