人眼眶脂肪来源干细胞条件培养基对兔角膜碱烧伤治疗效果的评估

Evaluation of the Treatment Effects of Conditioned Medium from Human Orbital Adipose-Derived Stem Cells in a Corneal Alkali Burn Rabbit Model.

作者信息

Cheng Yu, Liu Guangpeng

机构信息

Department of Plastic and Reconstructive Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.

出版信息

J Ocul Pharmacol Ther. 2024 May;40(4):222-231. doi: 10.1089/jop.2023.0154. Epub 2024 Mar 28.

Abstract

This study aimed to evaluate the effects of a new treatment-conditioned medium from human orbital adipose-derived stem cells (OASC-CM)-on corneal recovery after alkali burns in a rabbit model. The corneal alkali burn rabbit model was established and treated with OASC-CM, conditioned medium from human abdominal subcutaneous adipose-derived stem cells (ABASC-CM), and fresh control culture medium (con-CM) three times a day for 7 days, respectively. Subsequently, the treatment effects were evaluated and compared through clinical, histological, immunohistochemical, and cytokine evaluations. Clinically, OASC-CM alleviated corneal opacity and edema and promoted recovery of corneal epithelium defect. Histologically and immunohistochemically, OASC-CM inhibited neovascularization, conjunctivalization, and immuno-inflammatory reaction, while promoting corneal regeneration and rearrangement. Increased secretion of interleukin-10 and inhibited protein levels of cluster of differentiation 45, interferon-γ, and tumor necrosis factor-α were observed in the alkali-burned cornea after OASC-CM treatment, which might be the relevant molecular mechanism. OASC-CM showed significant effects on the recovery of rabbit corneal alkali burns and eliminated immunological and ethical limitations, representing a new option for corneal wound treatment.

摘要

本研究旨在评估一种新的经处理的人眼眶脂肪来源干细胞培养基(OASC-CM)对兔碱烧伤角膜恢复的影响。建立兔角膜碱烧伤模型,分别用OASC-CM、人腹部皮下脂肪来源干细胞培养基(ABASC-CM)和新鲜对照培养基(con-CM)每天处理3次,共7天。随后,通过临床、组织学、免疫组织化学和细胞因子评估来评价和比较治疗效果。临床上,OASC-CM减轻了角膜混浊和水肿,促进了角膜上皮缺损的恢复。组织学和免疫组织化学结果显示,OASC-CM抑制了新生血管形成、结膜化和免疫炎症反应,同时促进了角膜再生和重塑。OASC-CM处理后,碱烧伤角膜中白细胞介素-10分泌增加,分化簇45、干扰素-γ和肿瘤坏死因子-α的蛋白水平受到抑制,这可能是相关的分子机制。OASC-CM对兔角膜碱烧伤的恢复显示出显著效果,且消除了免疫和伦理限制,为角膜伤口治疗提供了一种新的选择。

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