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Exosome loaded genipin crosslinked hydrogel facilitates full thickness cutaneous wound healing in rat animal model

机译:外渗的Genipin交联水凝胶有助于大鼠动物模型的全厚皮肤伤口愈合

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摘要

Full thickness cutaneous wound therapy and regeneration remains a critical challenge in clinical therapeutics. Recent reports have suggested that mesenchymal stem cells exosomes therapy is a promising technology with great potential to efficiently promote tissue regeneration. Multifunctional hydrogel composed of both synthetic materials and natural materials is an effective carrier for exosomes loading. Herein, we constructed a biodegradable, dual-sensitive hydrogel encapsulated human umbilical cord-mesenchymal stem cells (hUCMSCs) derived exosomes to facilitate wound healing and skin regeneration process. The materials characterization, exosomes identification, and in vivo full-thickness cutaneous wound healing effect of the hydrogels were performed and evaluated. The in vivo results demonstrated the exosomes loaded hydrogel had significantly improved wound closure, re-epithelialization rates, collagen deposition in the wound sites. More skin appendages were observed in exosomes loaded hydrogel treated wound, indicating the potential to achieve complete skin regeneration. This study provides a new access for complete cutaneous wound regeneration via a genipin crosslinked dual-sensitive hydrogel loading hUCMSCs derived exosomes.
机译:完全厚度的皮肤伤口治疗和再生仍然是临床治疗中的危急挑战。最近的报道表明,间充质干细胞外来治疗是一种有效的技术,有效地促进组织再生。由合成材料和天然材料组成的多功能水凝胶是外索物负荷的有效载体。在此,我们构建了可生物降解的双敏感水凝胶包封的人脐带间充质干细胞(HUCMSCs)衍生出外泌体,以促进伤口愈合和皮肤再生过程。进行材料表征,外泌体鉴定和水凝胶的体内全厚的皮肤伤口愈合效果和评价。体内结果证明了外泌体加载水凝胶具有显着改善的伤口闭合,再上皮率,伤口位点中的胶原沉积。在外泌体负载水凝胶处理的伤口中观察到更多的皮肤阑尾,表明潜力能够实现完全的皮肤再生。本研究提供了通过Genipin交联双敏水凝胶加载HUCMSCS的新进食进行全皮肤伤口再生的新访问。

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