来自细胞的LysoPS通过激活微质GPR34-PI3K-AKT-NINJ1轴来诱导视网膜新血管化
Lushu Chen1,2, HuiYing Zhang1,2, Ying Zhang1,2
1The Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, P. R. China.
Journal of neuroinflammation
|October 29, 2024
概括
受伤的状腺细胞释放lysophosphatidylserines (LysoPS),触发微质细胞外陷,并在多发性糖尿病视网膜病变 (PDR) 中引发视网膜新血管. 针对GPR34-PI3K-AKT-NINJ1通路抑制了这一过程,为PDR提供了潜在的治疗策略.
科学领域:
- 眼科医生 眼科 眼科
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 视网膜新血管化是多发性糖尿病视网膜病变 (PDR) 失明的主要原因.
- 视网膜微质细胞是关键的免疫细胞,参与PDR病变发生.
- 功能障碍的质细胞,微质细胞和血管细胞相互作用以调节新血管化.
研究的目的:
- 为了研究从PDR中受伤的质细胞中获得的溶解酸胺素 (LysoPS) 的作用.
- 阐明参与LysoPS诱导的微质激活和新血管化的信号通路.
- 评估抑制这种途径的治疗潜力.
主要方法:
- 进行了体外和体内实验.
- 研究了LysoPS对微质细胞外陷形成和炎症性细胞因子表达 (IL-6,IL-8,VEGFA,FGF2) 的影响.
- 研究了GPR34-PI3K-AKT-NINJ1信号轴的激活及其抑制.
主要成果:
- 从受伤的质细胞中释放的LysoPS诱导了微质细胞外陷的形成和视网膜新血管化.
- 莱索普斯激活了微质中的GPR34-PI3K-AKT-NINJ1通路,促进了血管生成.
- 抑制GPR34-PI3K-AKT-NINJ1轴显著降低了微质激活和新血管化.
结论:
- 亡性质细胞释放LysoPS,它驱动PDR中的微质炎症和新血管化.
- GPR34-PI3K-AKT-NINJ1轴是LysoPS诱导的视网膜新血管化的关键调解器.
- 针对这一轴,为PDR提供了一个有前途的治疗策略.
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