在高热症期间管状pH值的上升加剧了石的形成
Farai C Gombedza1, Samuel Shin1,2, Jaclyn Sadiua1
1Calcium Signaling Laboratory, Research Service, Veterans Affairs Medical Center, 50 Irving Street, NW, Washington, DC 20422, USA.
International journal of molecular sciences
|May 11, 2024
概括
过渡性受体潜能佳能类型3 (TRPC3) 通道缺陷加剧酸 (CaP) 和混合结石形成在超和条件下的小鼠. TRPC3具有保护性作用,可以防止化,纤维化,炎症和亡.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 分子生物学分子生物学
背景情况:
- 腎結石病 (CaNL) 通常涉及酸 (CaP) 和氧酸 (CaOx) 水晶.
- 过热和尿液pH值升高是CaP晶核形成的关键因素.
- TRPC3通道调节近接管状 (Ca2+) 流量,而TRPC3淘汰的小鼠表现出高尿和微晶形成.
研究的目的:
- 为了研究TRPC3在神经病的发展中的作用.
- 为了确定TRPC3缺乏对CaP和混合晶体形成在高和条件下的影响.
主要方法:
- 使用TRPC3-淘汰赛 (KO) 的小鼠,用糖 (CaG) 和乙胺 (ACZ) 诱导CaNL表型.
- 分析了组织中的晶体形成,大小和分布.
- 通过使用储存式Ca2+输入 (SOCE) 和受体式Ca2+输入 (ROCE) 抑制剂,评估Ca2+进入近端管状 (PT) 细胞.
- 在PT细胞中评估了基因表达特征.
主要成果:
- 与野生类型对照 (WTT) 相比,用CaG和ACZ (KOT) 治疗的TRPC3KO小鼠显示出显著增加的CaP和混合晶体形成.
- 科特小鼠的晶体大小显著增加,髓和骨区域的微晶体沉积增加.
- 来自接受治疗的小鼠的PT细胞显示出改变的Ca2+输入,TRPC3缺乏影响ROCE和SOCE机制.
- 基因表达分析显示TRPC3在高pH和高性条件下对化,纤维化,炎症和亡起着保护作用.
结论:
- TRPC3 缺乏,加上高血症和尿液pH值升高,显著促进了CaP和混合结石的形成.
- 在TRPC3缺乏细胞中的受损的ROCE和SOCE机制有助于增加化.
- 在CaNL模型中,TRPC3对结石和相关病态起着关键的保护作用.
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