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Exosomes secreted by BMSCs exerted their roles via regulating miR-93-3p/APAF1 axis. (a) The expression of APAF1 was analyzed by RT-qPCR. (b) Cell viability was detected by MTT assay. (c and d) The apoptosis rates were detected by flow cytometry. (e) The migration of HaCaT cells was examined by a Transwell assay. ***P < 0.001 vs. H2O2 or control; ##P < 0.01 vs. H2O2; &P < 0.05 vs. H2O2 + BMSC-exos + NC mimic + vector; $$P < 0.01 vs. H2O2 + BMSC-exos + miR-93-3p mimic + APAF1
