Bioactive extracellular vesicles from a subset of endothelial progenitor cells rescue retinal ischemia and neurodegeneration.
Bioactive extracellular vesicles from a subset of endothelial progenitor cells rescue retinal ischemia and neurodegeneration.
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来自内皮祖细胞亚群的生物活性细胞外囊泡拯救视网膜缺血和神经变性。
DOI:
10.1172/jci.insight.155928
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发表时间:
2022-06-22
期刊:
影响因子:
8
通讯作者:
Friedlander, Martin
中科院分区:
文献类型:
--
作者:
Marra, Kyle, V;Aguilar, Edith;Guoqin, Wei;Usui-Ouchi, Ayumi;Ideguchi, Yochiro;Sakimoto, Susumu;Friedlander, Martin
Disruption of the neurovascular unit (NVU) underlies the pathophysiology of various CNS diseases. One strategy to repair NVU dysfunction uses stem/progenitor cells to provide trophic support to the NVU’s functionally coupled and interdependent vasculature and surrounding CNS parenchyma. A subset of endothelial progenitor cells, endothelial colony-forming cells (ECFCs) with high expression of the CD44 hyaluronan receptor (CD44hi), provides such neurovasculotrophic support via a paracrine mechanism. Here, we report that bioactive extracellular vesicles from CD44hi ECFCs (EVshi) are paracrine mediators, recapitulating the effects of intact cell therapy in murine models of ischemic/neurodegenerative retinopathy; vesicles from ECFCs with low expression levels of CD44 (EVslo) were ineffective. Small RNA sequencing comparing the microRNA cargo from EVshi and EVslo identified candidate microRNAs that contribute to these effects. EVshi may be used to repair NVU dysfunction through multiple mechanisms to stabilize hypoxic vasculature, promote vascular growth, and support neural cells.
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影响因子:
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通讯作者:
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Camussi, Giovanni
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通讯作者:
Stassen FRM