赛马福林3E-普莱克辛D1轴通过ErbB2-介导的纤维细胞激活驱动肺纤维化
Zhesong Deng1, Jinkun Chen2, Ruonan Yang1
1Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|March 20, 2025
概括
P61-Sema3E-Plexin D1通路通过激活纤维细胞驱动异常性肺纤维化 (IPF). 针对这个轴,特别是林介导裂纹,显示出治疗肺纤维化的前景.
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:
- 异形性肺纤维化 (IPF) 涉及过度的纤维细胞活动和细胞外基质沉积,但潜在的机制尚不清楚.
- 纤维细胞功能障碍是IPF发病率和死亡率的关键驱动因素.
研究的目的:
- 调查Sema3E和Plexin D1在IPF病变发生中的作用.
- 阐明Sema3E在IPF中促进纤维细胞激活的分子机制.
主要方法:
- 在IPF患者肺部和BLM诱导的纤维化小鼠模型中量化Sema3E和Plexin D1表达.
- 评估Sema3E和Plexin D1对纤维细胞行为 (激活,增殖,迁移) 的淘汰效应.
- 分析Furin在Sema3E裂变和下游信号通路 (ErbB2酸化) 中的作用.
主要成果:
- 塞马3E和Plexin D1在IPF肺部上调,与肺功能减弱相关.
- 由Furin裂变产生的P61-Sema3E,通过Plexin D1-ErbB2轴驱动纤维细胞激活,增殖和迁移.
- 在体内,Sema3E Knockdown或Knockout可以防止白血素诱导的肺纤维化.
结论:
- P61-Sema3E-Plexin D1轴是IPF中纤维细胞亲纤维细胞活动的关键调解器.
- 准富林介导的Sema3E裂变是IPF的潜在治疗策略.
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