Fig. 1

BenSer inhibits breast cancer cell growth by blocking leucine and glutamine uptake. Glutamine (a) and leucine (b) uptake over 15 min were measured in MCF-7, HCC1806 and MDA-MB-231 (MDA-231) cells in the presence or absence of 10 mM BenSer. c, data from (b) showing raw counts per minute (CPM). d-f, relative cell viability measured by MTT assay in MCF-7 (d), HCC1806 (e), and MDA-231 (f) cells cultured for 3 days in the presence or absence of 10 mM BenSer. Data represent mean ± SEM of at least three independent experiments. *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001; unpaired student’s t-test (a-b), 2-way ANOVA (d-f)