Anti-inflammatory effects of mesenchymal stem cell-derived exosomal microRNA-146a-5p and microRNA-548e-5p on human trophoblast cells.Human umbilical cord mesenchymal stem cells (MSCs) have been reported to improve the migration and invasion of trophoblast cells; however, little is known about whether MSC-derived exosomes and exosomal miRNAs can regulate trophoblast cell properties.  Furthermore, we found that the transfection of human trophoblast cells with miR-146a-5p and miR-548e-5p inhibitors reduced trophoblast migration (P < 0.05 vs control) and the expression of proliferating cell nuclear antigen, a protein essential for cell proliferation (P < 0.01 vs control). 
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