间充质干细胞凋亡囊泡在皮肤损伤修复中的研究进展

Research advances in apoptotic extracellular vesicles derived from mesenchymal stem cells in skin wound repair

  • 摘要: 皮肤损伤修复是人体内一个复杂的生物学过程,涉及炎症反应、细胞增殖和分化、细胞迁移、血管生成和细胞外 基质重塑等多个方面的发展变化。近年来,间充质干细胞(mesenchymal stem cells,MSCs)已被证明在皮肤损伤修复过程中 具有显著的促进作用,但是干细胞移植入体内后,在复杂的宿主环境中很快会发生凋亡,形成包含细胞成分的凋亡囊泡 (apoptotic extracellular vesicles,apoEVs),并能够保留干细胞促进组织修复再生的功能。本文对间充质干细胞凋亡囊泡 (apoptotic extracellular vesicles derived from mesenchymal stem cells,MSC-apoEVs)的产生、生物学特性以及其在促进皮肤损 伤修复的研究现状进行综述,总结遇到的瓶颈问题,并提出未来的研究方向。

     

    Abstract: Cutaneous wound repair is a complex biological process which involves the development and changes of multiple aspects such as inflammatory response, cell proliferation and differentiation, cell migration, angiogenesis, and extracellular matrix remodeling. In recent years, mesenchymal stem cells (MSCs) have a significant promoting effect on skin wound repair. However, after being transplanted into the host, stem cells will undergo apoptosis in a short time due to the unfamiliar microenvironments, producing a large number of endogenous apoptotic extracellular vesicles (apoEVs). ApoEVs contain cellular components including microRNAs, mRNAs, DNAs, proteins, and lipids, and also inherit the function of MSCs in promoting tissue repair and regeneration. This article reviews the biogenesis and biological characteristics of apoptotic extracellular vesicles derived from mesenchymal stem cells (MSC-apoEVs), with emphasis on the current research status of apoEVs contribute to cutaneous wound repair, and summarizes the problems encountered and proposes future research directions.

     

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