Fig. 2

Anti-proliferation effect of BMEVs. a CCK-8 assay to evaluate the cell viability of CAL 27 and WSU-HN6 cells treated with different concentrations of BMEVs for 24 h; b cell viability of CAL 27 and WSU-HN6 cells treated with the same volume of BMEVs and BM supernatant; c flow cytometric analysis of cell-cycle phases after BMEVs treatment for 12 h; d representative column graph analysis of CAL 27 and WSU-HN6 cell cycle phases; e Plate colony formation assay of CAL 27 and WSU-HN6 cells