Fig 4. Synergy calculations of the combined effects between enzalutamide and ribociclib treatments.
MDA-MB-231 (a), MCF 7 (b), and MDA-MB-468(c) cells were treated with indicated concentrations of the enzalutamide plus ribociclib (0.5, 2, 5, 10, 15, 20, 25, 35, 45, and 60 μM of enzalutamide in combination with 5 and 25 μM of ribociclib) for 48 hr. Cell viability was investigated by MTT assay. The degree of antagonism or synergism between two drugs has been shown by a color bar (blue color indicates synergism).