前列腺素E2 逆转肌纤维细胞在性食道炎中的分化
bioRxiv : the preprint server for biology
|February 9, 2026
概括
普拉斯塔格兰丁E2 (PGE2) 通过促进肌纤维细胞脱差,有效地逆转了埃索诺菲尔性食道炎 (EoE) 中的纤维化. 这针对cAMP/YAP/THBS-1通路,为食道狭窄提供了一个新的治疗策略.
科学领域:
- 胃肠病学 胃肠病学
- 纤维化研究 纤维化研究
- 细胞信号传递 细胞信号传递
背景情况:
- 性食道炎 (EoE) 导致食道纤维化和狭窄,这是由于未经控制的炎症.
- 肌纤维细胞通过分泌细胞外基质来驱动纤维化,导致组织硬.
- 纤维化食道中肌纤维细胞的治疗向尚未被探索.
研究的目的:
- 调查前列腺素E2 (PGE2) 在去区分EoE肌纤维细胞中的有效性.
- 阐明PGE2介导的肌纤维细胞分化背后的分子机制.
- 评估PGE2对纤维肌性EOE的治疗潜力.
主要方法:
- 使用胎儿食道纤维细胞 (FEF3) 和患者衍生纤维细胞.
- 采用了一种小鼠模型的eosinophilic食道炎 (EOE).
- 分析了纤维化标志物,收缩性,信号通路 (cAMP,YAP) 和基因表达 (RNA-seq).
主要成果:
- 通过cAMP途径,PGE2显著降低了纤维化标志物 (αSMA,FN1,COL1A1) 和肌纤维细胞收缩性.
- PGE2抑制了YAP的核积累,并促进了其降解,降低了Thrombospondin-1 (THBS-1) 的调节.
- 在体内,Butaprost (PGE2激动剂) 降低了纤维化标志物和YAP转位,改善了原组织.
结论:
- 通过cAMP/YAP/THBS-1通路,PGE2促进了EOE中的肌纤维细胞脱差.
- PGE2显示出作为EoE与狭窄的治疗策略的潜力.
- 纤维细胞保留了可塑性,挑战了不可逆转纤维化的概念.
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