中国神经再生研究(英文版) ›› 2023, Vol. 18 ›› Issue (10): 2301-2306.doi: 10.4103/1673-5374.369121

• 原著:视神经损伤修复保护与再生 • 上一篇    下一篇

间充质干细胞来源细胞外囊泡对慢性高眼压视神经损伤的神经保护

  

  • 出版日期:2023-10-15 发布日期:2023-03-29
  • 基金资助:
    国家自然科学基金项目(81570844);福建省自然科学基金项目(2011D001);福建省医学创新计划项目(2011-CXB-47);华夏转化医学青年基金项目(2017-A-00301);厦门市科技计划指导项目(3502Z20189033)

Neuroprotective effect of mesenchymal stem cell-derived extracellular vesicles on optic nerve injury in chronic ocular hypertension

Fei Yu1, 2, #, Yao Wang3, #, Chang-Quan Huang1, 2, Si-Jie Lin4, Ru-Xin Gao1, 2, Ren-Yi Wu1, 2, 5, *   

  1. 1Department of Glaucoma, Eye Institute and Affiliated Xiamen Eye Center of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian Province, China; 2Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen, Fujian Province, China; 3Shaanxi Provincial Key Lab of Ophthalmology, Shaanxi Clinical Study Center for Ocular Disease, Shaanxi Institute of Ophthalmology, First Affiliated Hospital, Medical School, Northwest University, Xi’an, Shaanxi Province, China; 4Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian Province, China; 5Department of Glaucoma, Shanghai Peace Eye Hospital, Shanghai, China
  • Online:2023-10-15 Published:2023-03-29
  • Contact: Ren-Yi Wu, MD, PhD, wubasel@hotmail.com.
  • Supported by:
    The study was supported by the National Natural Science Foundation of China, No. 81570844; the Natural Science Foundation of Fujian Province, No. 2011D001; Medical Innovation Program of Fujian Province, No. 2011-CXB-47; Huaxia Translational Medicine Youth Foundation, No. 2017-A-00301; and Xiamen Science and Technology Program Guiding Project, No. 3502Z20189033 (all to RYW).

摘要:

间充质干细胞对视网膜和感光细胞的损伤具有神经保护作用,该作用可能地由间充质干细胞释放的细胞外囊泡(或称为外泌体)介导。为探索脐带间充质干细胞来源的细胞外囊泡对于青光眼的神经保护作用,实验以结膜成纤维细胞前房注射建立了慢性高眼压大鼠模型,以模拟青光眼视神经损伤。损伤1周后,于玻璃体腔注射脐带来源间充质干细胞来源的细胞外囊泡。结果可见间充质干细胞来源的细胞外囊泡可显著减轻视网膜损伤,增加视网膜神经节细胞数量,抑制视网膜凋亡相关蛋白caspase-3的活化。表明间充质干细胞来源的细胞外囊泡有助于减轻慢性高眼压视神经损伤,且这一作用是通过抑制细胞凋亡实现的。

https://orcid.org/0000-0002-5945-0124 (Ren-Yi Wu); https://orcid.org/0000-0003-4578-7401 (Yao Wang)

关键词: 慢性高眼压, 细胞外囊泡, 视网膜神经节细胞, 脐带, 间充质干细胞, 慢性青光眼, 凋亡, 神经保护, 动物模型, 大鼠

Abstract: Mesenchymal stem cells have neuroprotective effects that limit damage to the retina and photoreceptors, and which may be mediated by extracellular vesicles (or exosomes) released by mesenchymal stem cells. To investigate the neuroprotective effect of extracellular vesicles derived from umbilical cord mesenchymal stem cells on glaucoma, we established rat models of chronic ocular hypertension by injecting conjunctival fibroblasts into the anterior chamber to mimic optic nerve injury caused by glaucoma. One week after injury, extracellular vesicles derived from umbilical cord-derived mesenchymal stem cells were injected into the vitreous cavity. We found that extracellular vesicles derived from mesenchymal stem cells substantially reduced retinal damage, increased the number of retinal ganglion cells, and inhibited the activation of caspase-3. These findings suggest that mesenchymal stem cell-derived extracellular vesicles can help alleviate optic nerve injury caused by chronic ocular hypertension, and this effect is achieved by inhibiting cell apoptosis.

Key words: animal model, apoptosis, chronic glaucoma, chronic ocular hypertension, extracellular vesicles, mesenchymal stem cells, neuroprotection, rat, retinal ganglion cells, umbilical cord