Effect of LBH589 and salinomycin on TNBC BCSC self-renewal capacity and the TNBC BCSC population. a, b HCC1937 cells treated with DMSO, LBH589, salinomycin, or a combination of LBH589 and salinomycin in mammosphere culture conditions. a Images show representative mammospheres in each treatment at day 5. b Number of mammospheres>70 μm in each treatment group. c, d HCC1937 cells treated with DMSO, LBH589, salinomycin, or combination of LBH589 and salinomycin after ALDEFLUOR assays. c The panels show representative flow cytometry of ALDEFLUOR assays in each treatment condition. d The graph shows the ALDH1-positive cell population in each treatment condition. Original magnifications were ×200. The error bars represent mean ± SD. *p < 0.05; **p < 0.005; ***p < 0.005