LM-234ep conditioned medium inhibits cell proliferation in cancer cells. B16-F10 (A and B), or HeLa (C and D) cells were seeded into 6-well plates at a density of 1 × 104 cells/well and allowed to attach overnight. Cells were incubated with LM-234ep CM (black circles), LM-234mf CM (black triangles), or culture medium (black squares) containing 10% FBS (Control), and counted at different time points. Data are shown as mean ± SE. * P = 0.05, ** P = 0.0018, *** P = 0.0006, **** P < 0.0001 (Student's t Test). Assays were performed in triplicate.