在PARP9中,PARP9通过TGF-β/Smad轴和pirfenidone影响心肌功能
Nannan Chen1, Lianzhi Zhang1, Zhang Zhong1
1Department of Cardiology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China.
Biomolecules & biomedicine
|August 30, 2024
概括
皮尔费尼 (PFD) 通过调节多 (ADP-ribose) 聚合酶9 (PARP9) 和TGF-β/Smad通路,有效降低安吉奥素II诱导的心脏纤维细胞激活和纤维化,为心肌纤维化提供潜在的治疗方法.
科学领域:
- 心血管生物学 心血管生物学
- 分子心脏病学分子心脏病学
- 纤维化研究 纤维化研究
背景情况:
- 心律不整常常与过度活跃的心脏纤维细胞 (CFs) 相关.
- 了解聚 (ADP-ribose) 聚合酶9 (PARP9) 在血管素II (Ang II) 诱导的CF激活中的作用至关重要.
- 研究皮尔芬尼 (PFD) 作为心脏纤维化治疗剂具有重大意义.
研究的目的:
- 使用生物信息学识别参与Ang II诱导的CF激活的关键基因.
- 评估PFD对Ang II诱导的CF扩散,迁移和纤维化的治疗潜力.
- 阐明PARP9和TGF-β/Smad通路在PFD作用机制中的作用.
主要方法:
- 在GSE42955数据集上进行了权重基因联合表达网络分析 (WGCNA),差异基因表达 (DEG),蛋白质与蛋白质相互作用 (PPI) 和ROC分析.
- 免疫细胞AI工具用于评估免疫细胞透.
- 在体外实验中评估CF行为,纤维化标志物和Ang II和PFD治疗下的信号通路,有或没有PARP9过度表达.
主要成果:
- PARP9被确定为具有高诊断价值的枢纽基因,与免疫细胞透有关.
- PFD显著抑制了Ang II诱导的CF扩散,迁移和纤维化.
- PFD降低了Ang II诱导的PARP9表达和关键纤维化标志物 (TGF-β,原I,原III,α-SMA),并调节了TGF-β/Smad通路.
结论:
- PFD显示出对Ang II诱导的心脏纤维细胞激活和心肌纤维化有显著的治疗效果.
- PARP9在Ang II诱导的纤维化中起着关键作用,是PFD的目标.
- PFD调节TGF-β/Smad信号通路和PARP9表达,为心肌纤维化提供了一个有前途的治疗策略.
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