Fig. 2

Effect of increased K⁺ concentration on MDA-MB-231 cell growth. MDA-MB-231 cell growth in the presence of 5 mM K⁺ at day 1 (a) and day 6 (b), and in the presence of 50 mM K⁺ at day 1 (c) and day 6 (d). Averaged cell growth of MDA-MB-231 cell populations in different concentrations of K⁺ (E). FC fold change. Asterisk indicates statistical significance