PGP and gastric cancer: The genes associated with MDR include MDR1/P-gp [29,30], MRP-1 [31,32], GST-π [33,34], Bcl-2 [35], TS [36,37] and Bax [38], before and after the intervention of ZNF139 in GC cells to delineate the regulating mechanism of ZNF139-miR-185 pathway in GC MDR.