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小分子屏幕识别elafibranor以链接机械线索和IRF6依赖的上皮质分化

Helen L Molteni¹, Brandi Golden¹, Emily P Y Yu¹

¹Center for Craniofacial Innovation, Children's Hospital of Philadelphia Research Institute, Children's Hospital of Philadelphia, PA, 19104, USA.

Disease models & mechanisms

|January 13, 2026

概括

作为PPAR激动剂的Elafibranor通过恢复表皮屏障功能并使胃流动成为可能,拯救了缺少干扰素调节因子6 (IRF6) 的斑马鱼胚胎. 这表明机械力影响IRF6驱动的上皮细胞发育.

科学领域:

发展生物学发展生物学
皮质生物学皮质生物学
斑马鱼模型斑马鱼模型

背景情况:

周皮对于胚胎发育至关重要,维护屏障的完整性并防止粘附.
干扰素调节因子6 (IRF6) 对于外皮前体 (EVL) 的形成至关重要.
斑马鱼 irf6 母性-无胚胎由于外皮膜缺陷而在胃化之前破裂.

研究的目的:

为了确定化学化合物,可以拯救irf6母性-null斑马鱼胚胎.
研究机械力量在IRF6介导的上皮细胞发育中的作用.

主要方法:

化学查使用斑马鱼IRF6母体-零胚胎.
评估EVL细胞与细胞接触,F-actin和Zo1定位.
对表皮分化标记物的分析 (esrp1, tp63, cebpb).
评估Elafibranor对野生斑马鱼发育的影响.

主要成果:

作为PPARα/PPARd激动剂的Elafibranor延迟了胚胎破裂,并挽救了6只母体无胚胎的胃化.
伊拉非布拉诺恢复了EVL细胞与细胞的接触,F-actin和Zo1定位.
在EVL结构恢复之前表皮分化的标志物表达,表明机械线索影响IRF6功能.
埃拉菲布拉诺诱导了野生斑马鱼的粘附相关缺陷.

结论:

机械力量,而不是仅仅是转录的变化,似乎影响IRF6介导的上皮分化.
埃拉非布拉诺显示出对外皮缺陷的治疗潜力,并提供了对发育机制的见解.
这项研究突出了早期胚胎发育过程中机械线索和基因表达之间的复杂关系.

关键词:

包裹层是一种覆盖层.流行病 (Epiboly) 是一种流行病.表皮分化的表皮分化.周围的皮肤是什么小分子屏幕是一个小分子屏幕.

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