益格拉努林通过调节NF-κB驱动的炎症和神经再生途径来恢复糖尿病角质愈合
Tianyi Zhou1, Yuchen Cai2, Jiaming Sun2
1Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China.
The ocular surface
|February 14, 2026
概括
进展素 (PGRN) 缺乏会影响角膜愈合和神经再生,模仿糖尿病角质炎. 局部PGRN治疗加速修复并减少炎症,突出显示了它对糖尿病眼病的治疗潜力.
科学领域:
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
背景情况:
- 糖尿病角膜病变的特点是角膜愈合的延迟和神经密度的降低,这给治疗带来了挑战.
- 益格拉努林 (PGRN) 是一种抗炎和神经保护因子,在角膜平衡中起着未明确的作用.
研究的目的:
- 研究PGRN在正常和糖尿病状态下角膜修复中的功能.
- 确定PGRN在角膜愈合和神经炎症中的作用背后的机制.
主要方法:
- 在小鼠角膜中通过西部斑,ELISA和免疫组织化学评估PGRN表达.
- 在正常血糖,糖尿病和GRN-KO (GRN-KO) 的小鼠中使用角膜脱bridement模型.
- 评估了上皮质愈合,神经再生和炎症/神经损伤因素,包括转录组分析.
主要成果:
- 糖尿病的角膜显示PGRN水平显著降低.
- 在正常和糖尿病小鼠中,局部PGRN加速了上皮质关闭和神经再生.
- GRN-KO小鼠表现出延迟愈合和神经再生受损,炎症标志物 (IL-1β,IL-6,TNF-α) 和NF-κB激活增加,而PGRN补充则逆转了这些影响,增加了IL-10,Arg-1和NGF.
结论:
- 对于角膜上皮质-神经-免疫恒温 PGRN 是至关重要的.
- PGRN 缺陷重现了糖尿病角膜病变的特征.
- 外源性PGRN促进角膜修复和减轻神经炎症,表明治疗潜力.
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