抑制 (间歇性) P2Y 6受体可以减弱纤维化进展
bioRxiv : the preprint server for biology
|February 9, 2026
概括
慢性病涉及纤维化,由激活的纤维细胞驱动. 这项研究表明,阻断P2Y6受体通过抑制纤维细胞激活和迁移来减少纤维化,从而提供了潜在的新疗法策略.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 慢性病 (CKD) 影响全球数以百万计的人,其特点是进展性纤维化.
- 纤维细胞激活是纤维化的一个关键驱动因素,但潜在的信号通路尚未完全理解.
- 细胞外核酸和P2受体信号传递与脏病理生理学有关.
研究的目的:
- 为了研究Gq/11合P2Y受体在脏间歇性纤维细胞中的作用.
- 确定这些受体在实验性纤维化中的参与.
- 探索P2Y6受体信号作为纤维化的潜在治疗标.
主要方法:
- 在位混合RNA检测P2Y1和P2Y6受体表达在纤维细胞.
- 在核酸刺激后测量细胞内 (Ca2+) 升高和纤维细胞迁移的功能测定.
- 药理上抑制P2Y6受体使用MRS2578在腺因诱导脏病小鼠模型.
主要成果:
- P2Y1和P2Y6受体在脏间歇性纤维细胞中表达,而P2Y6在纤维脏中升调.
- 用尿素二酸盐 (UDP) 刺激纤维细胞激活了Gq/11合P2Y受体并增强了纤维细胞迁移.
- 抑制P2Y6受体显著降低了肌纤维细胞标记物 (α-光滑肌动蛋白,原I) 和微弱的纤维化在体内.
结论:
- 上调的P2Y6受体信号促进了纤维化中间歇性细胞向肌纤维细胞的过渡.
- P2Y6受体信号调节纤维细胞迁移,有助于纤维化进展.
- 向P2Y6受体是减少纤维化和痕的有希望的治疗策略.
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