调节FOXM1缓解了表皮重塑和炎症在酸性食道炎
bioRxiv : the preprint server for biology
|June 12, 2025
概括
转录因子FOXM1驱动了在性食道炎 (EoE) 中的上皮干扰. 抑制FOXM1恢复正常的上皮功能并减少炎症,为EoE患者提供了一种新的治疗策略.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 性食道炎 (EoE) 是一种慢性过敏状况,其特征是食道上皮的重塑,屏障功能障碍和炎症.
- 持续的EOE分子和结构上皮质变化导致持续的症状和疾病复发,即使在组织学缓解后.
- 转录因子FOXM1与过敏性喘中的上皮细胞增殖和炎症有关.
研究的目的:
- 调查FOXM1在EOE上皮质干扰中的作用.
- 评估抑制EoE中的FOXM1的治疗潜力.
主要方法:
- 在人类食道活检,患者衍生器官和小鼠EOE模型中分析FOXM1表达.
- 使用IL-13刺激进行EoE的体外建模.
- 评估FOXM1抑制对组织学,基因表达,有机体形成和屏障完整性的影响 (使用RCM-1和siRNA).
- RNA测序和染色质免疫沉以阐明分子机制.
主要成果:
- 在活跃的EoE患者中,FOXM1显著上调,并局限于基底上皮质.
- 刺激IL-13增加了FOXM1,损害了上皮分化,增强了基底细胞增生.
- 抑制FOXM1恢复了分化标志物,减少了增多,改善了屏障功能.
- 在小鼠模型中,RCM-1治疗改善了上皮细胞的变化,并减少了乙素透.
- 从机制上讲,FOXM1直接调节了CCNB1,这是一个细胞周期基因,在EoE上调节.
结论:
- FOXM1是EoE上皮质干扰的关键调节者,驱动增殖和损害分化.
- 向FOXM1可以恢复上皮质平衡,减轻炎症,并为EoE提供一种新的治疗方法.
- 这项研究强调FOXM1抑制是通过解决表皮和免疫失调来管理EoE的有希望的策略.
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