Therefore, in this study, we investigated the effect of anti-MUC1 and dinuclear pyrazole-platinum(II) complexes, [Pt2(pyrazole)4(berenil)2]·4HCl·2H2O (PtPz4) and [Pt2(N-ethylpyrazole)4(berenil)2]·4HCl·2H2O (PtPz6), on apoptotic response in gastric cancer AGS cells. This evidence concerns the gene MUC1 and gastric cancer.