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具有分泌表型的IL-1β诱导的周细胞功能障碍通过Hes1/STAT3信号通路加剧视网膜微环境炎症

Caoxin Huang¹, Xiaofang Zhang¹, Menghua Wu¹

¹Xiamen Diabetes Institute, Fujian Province Key Laboratory of Translational Research for Diabetes, Department of Endocrinology and Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.

International immunopharmacology

|November 29, 2024

概括

视网膜膜细胞作为糖尿病视网膜病变 (DR) 的早期炎症传感器. 它们释放的炎症因素会损害血管,并激活免疫细胞,但抑制STAT3可以减少这种损伤.

科学领域:

眼睛生物学眼睛生物学
血管细胞生物学血管细胞生物学
糖尿病并发症糖尿病并发症

背景情况:

视网膜周细胞维持血液-视网膜屏障的完整性和血管功能.
细胞损失是糖尿病视网膜病变 (DR) 的标志,这是导致失明的主要原因.
皮质细胞在早期视网膜微环境中的确切作用尚不清楚.

研究的目的:

研究视网膜周细胞在对炎症的反应中的作用.
阐明皮质细胞对DR病原发生有所贡献的机制.
确定DR的潜在治疗点.

主要方法:

使用INTERLEUKIN-1β (IL-1β) 诱导皮细胞中的分泌表型.
对皮细胞基因和蛋白质表达的变化进行分析.
对皮质细胞对内皮细胞和微质细胞产生的皮质细胞诱导作用的评估.
使用静态的Hes1/STAT3信号通路的药理抑制.

主要成果:

IL-1β诱导了皮细胞中的分泌表型,增加了炎症性细胞因子,并减少了附着/收缩蛋白.
细胞衍生因素促进了微质化学反应,并诱导了内皮细胞功能障碍 (减少了奥克卢丁,增加了亡).
通过Hes1/STAT3途径调解细胞内分泌;通过STAT3抑制减轻IL-1β诱导的炎症和微质激活.

结论:

视网膜周细胞作为最初的炎症传感器起作用,经历表型变化,放大炎症并损害内皮细胞.
视网膜细胞中的STAT3信号传递是IL-1β诱导的视网膜损伤的关键媒介.
STAT3抑制是DR和其他IL-1β相关的眼部疾病的有希望的治疗策略.

关键词:

内皮细胞是内皮细胞.他是他的,他是他的.一个IL-1ββ.炎症炎症是一种炎症.微质细胞是一种微质细胞.危险细胞 (Pericyte) 是一种危险细胞.视网膜 (retina) 是一个视网膜.在STAT3中,我们可以使用STAT3.

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