Umbilical Cord Mesenchymal Stem Cell-Derived Apoptotic Extracellular Vesicles Ameliorate Cutaneous Wound Healing in Type 2 Diabetic Mice via Macrophage Pyroptosis Inhibition

    February 2023 in “ Research Square (Research Square) ”
    Yiming Wang, Jing Lin, Xiao Liu, Zhen Ma, Bei Li, Yuanyuan Shi, Wuyang zhang, Yuan Li, Hongzhi Zhou, Kaijin Hu, Yang Xue, Yan Jin
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    TLDR Applying certain vesicles from umbilical cord stem cells helps heal skin wounds in diabetic mice by reducing cell death and inflammation.
    The study confirmed that applying apoptotic extracellular vesicles (ApoEVs) derived from umbilical cord mesenchymal stem cells (UCMSCs) locally improved cutaneous wound healing in type 2 diabetes mellitus (T2DM) mice. The ApoEVs were found to inhibit macrophage pyroptosis, a form of cell death that produces inflammatory factors affecting wound healing, both in vivo and in vitro under high glucose conditions. The study also suggested that ApoEVs reduce oxidative stress levels, which could be the mechanism by which they inhibit macrophage pyroptosis.
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