尿中的原蛋白17A1调节上皮细胞完整性和阻塞性泌尿病的局部免疫反应
Takashi Namba1, Osamu Ichii2, Ken Natsuga3
1Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
The American journal of pathology
|May 20, 2024
概括
原蛋白17A1 (COL17A1) 在阻塞性尿路病变期间保持尿膜完整性和免疫反应. 它的缺失会损害尿细胞的粘附,增殖,分化和免疫细胞透到脏中.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 原17A1 (COL17A1) 是一个表皮半球体组分.
- COL17A1在尿路相关的淋巴体结构发育过程中,在骨的尿中被异位诱导.
- COL17A1诱导在人类和猫的阻塞性尿路易患尿路病的尿道中被观察到.
研究的目的:
- 确定COL17A1在阻塞性尿路病变中的功能.
- 分析COL17A1在维护泌尿管完整性和调节在单边泌尿管阻塞 (UUO) 期间免疫反应中的作用.
主要方法:
- 在单边尿道阻塞 (UUO) 一周后,分析了小鼠的泌尿器官.
- 评估了COL17A1的表达,管间病变和免疫细胞透 (CD11b+,CXCL2+).
- 对来自野生类型和Col17a1缺乏的小鼠的尿道进行了基因实体学分析.
主要成果:
- 在UUO后的泌尿道细胞中,COL17A1表达增加,与病变相关.
- COL17A1刺激导致免疫细胞激活 (Cxcl2表达).
- 缺乏Col17a1的小鼠显示免疫细胞透率降低,前代细胞 (细胞克拉-14+) 减少,基因表达模式发生改变.
结论:
- COL17A1通过调节细胞粘附,增殖和分化来维持尿的完整性.
- 在阻塞性尿路病变期间,COL17A1激活了局部免疫反应.
- COL17A1在哺乳动物阻塞性尿路病变的发病过程中起着至关重要的作用.
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