ABCB1 and gastric cancer: In gastric cancer, a combination of allicin with 5-Florouricil could decrease multidrug resistance in these cells by lowering the expression of WNT5A, Dickkopf-1(DKK1), multidrug resistance protein 1 (MDR1), P-glycoprotein 1 (P-GP), and CD44 gene levels [210].