LSR的目标是YAP调节肠道帕内特细胞分化
Yanan An1, Chao Wang2, Baozhen Fan3
1Department of Physiology, Binzhou Medical University, Yantai, Shandong, China; Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, Shandong, China.
Cell reports
|September 13, 2023
概括
脂解刺激的脂蛋白受体 (LSR) 对于肠道中的帕内特细胞分化至关重要. 长期性脊髓瘤缺陷会损害帕内斯细胞的发育,并加剧死性肠球炎.
科学领域:
- 细胞生物学 细胞生物学
- 胃肠病学 胃肠病学
- 分子生物学分子生物学
背景情况:
- 脂解刺激的脂蛋白受体 (LSR) 以其在上皮紧结和脂蛋白代谢中的作用而闻名.
- 它在肠上皮质恒温和疾病中的功能仍然在很大程度上未被探索.
研究的目的:
- 为了研究LSR在肠上皮质恒温中的作用.
- 确定LSR对肠道疾病,特别是死性肠球炎的病原发生的贡献.
主要方法:
- 条件删除小鼠模型和ex vivo有机体培养物被使用.
- 机制研究涉及评估YAP蛋白水平,酸化和蛋白质酶体降解.
- 获得和丧失功能的研究进行了评估LSR对疾病模型的影响.
主要成果:
- 在肠道干细胞中LSR的消除导致了Paneth细胞的消失.
- 由于LSR缺陷增加了YAP的丰富性,因为它调节了其酸化和蛋白质酶体降解.
- 通过增强帕内斯细胞分化,LSR可以预防死性肠球炎.
结论:
- LSR是小肠上皮质中Paneth细胞分化的一个重要因素.
- LSR作为YAP活动的上游负面调节器.
- 这种LSR代表了死性肠球炎的潜在治疗标.
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