FoxO1通过JAK1/STAT1促进高葡萄糖诱导的炎症和白内障形成
Yike Li1,2,3, An-Peng Pan1,2, Yishan Ye1,2
1National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, 270 Xueyuan West Road, Wenzhou, 325027, Zhejiang, China.
概括
糖尿病白内障涉及由FoxO1.1调节的炎症. 这项研究表明,FoxO1通过JAK1/STAT1通路促进高葡萄糖诱导的炎症,为糖尿病白内障提供了潜在的治疗点.
科学领域:
- 眼科医生 眼科 眼科
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 糖尿病白内障 (DC) 是糖尿病的一个重要并发症.
- 在高葡萄糖诱导的白内障形成背后的精确分子机制仍然不完全理解.
- 炎症途径与糖尿病白内障的发病有关.
研究的目的:
- 调查FoxO1在高葡萄糖 (HG) 诱导的NLRC4/IL-6炎症媒介在人类镜片上皮细胞中的激活中的作用 (SRA01/04).
- 确定JAK1/STAT1通路是否调解FoxO1在糖尿病白内障形成中的作用.
- 探索FoxO1作为糖尿病白内障的潜在治疗.
主要方法:
- 人类透镜上皮细胞 (SRA01/04) 和老鼠透镜在高葡萄糖 (HG) 条件下 (25-150 mM) 或正常葡萄糖 (NG,5.5 mM) 培养.
- 评估了FoxO1,NLRC4和IL-6的表达水平,使用实时PCR,西部斑点和免疫光.
- 评估了细胞活力,增殖 (EDU染色) 和细胞亡. 在老鼠透镜培养物中使用了FoxO1 (AS1842856) 和JAK1激素 (RO8191) 的药理抑制.
主要成果:
- HG刺激剂量依赖性增加了FoxO1的表达,并激活了SRA01/04细胞中的NLRC4/IL-6炎症介质.
- Knockdown FoxO1 抑制了 HG 诱导的 NLRC4/IL-6 激活,并恢复了细胞增殖.
- 通过FoxO1抑制,预防HG诱导的透镜阴影和老鼠透镜白内障的形成,并通过JAK1激动逆转.
结论:
- FoxO1通过JAK1/STAT1通路在透镜上皮细胞中积极调节高葡萄糖诱导的炎症激活.
- FoxO1在促进糖尿病白内障发展方面发挥着至关重要的作用.
- 准FoxO1为治疗糖尿病白内障提供了一个有希望的治疗策略.
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