相关实验视频
Updated: Feb 6, 2026

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Purification of Ubiquitinated p53 Proteins from Mammalian Cells
Published on: March 21, 2022
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WDR63促进肺纤维化通过促进p53的K63-连接Ubiquitination的p53的促进肺纤维化
Yajun Li1, Yuexia Yang1, Yue Zhang1
1State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Institute of Biomedical Science, College of Life Science, Henan Normal University, Xinxiang, People's Republic of China.
概括
WDR63蛋白稳定p53,促进细胞衰老和纤维化在异常性肺纤维化 (IPF). 针对WDR63为IPF患者提供了一种新的治疗方法.
科学领域:
- 肺部医学 肺部医学
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 异常性肺纤维化 (IPF) 是一种进展性肺病,涉及膜上皮细胞 (AEC) 和纤维细胞.
- 异常的p53信号与IPF有关,但其激活机制尚不清楚.
- 一种与肺癌相关的蛋白质WDR63可能在IPF的发病过程中发挥作用.
研究的目的:
- 调查WDR63在异形性肺纤维化 (IPF) 中的作用.
- 阐明WDR63在IPF中影响p53信号和细胞行为的机制.
- 评估WDR63作为IPF的潜在治疗点.
主要方法:
- 使用了白胺诱导的肺纤维化小鼠模型.
- 在IPF患者样本和小鼠肺部通过免疫光和西式斑点检测评估了WDR63的表达.
- 评估了WDR63对AEC和纤维细胞衰老和亡的影响,使用SA-β-gal染色和流细胞计.
- 确定了WDR63基质,并使用质谱,免疫沉和无处不在测试阐明了p53稳定机制.
主要成果:
- 在IPF患者中,WDR63表达显著升高.
- WDR63抑制了AEC的增殖和迁移,同时促进衰老和亡.
- WDR63诱导肺纤维细胞的衰老,并促进它们分化为肌纤维细胞.
- WDR63通过促进K63结合的多基化和减少K48结合的多基化来稳定p53,从而激活下游信号.
- 在体内,WDR63会加剧白血素诱导的肺纤维化;WDR63沉默会减轻纤维化.
结论:
- WDR63通过K63结合的多基化稳定p53,导致AEC和纤维细胞的病理变化,并恶化肺纤维化.
- 准WDR63为异形性肺纤维化提供了一个新的治疗策略.
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