RAB25 and gastric cancer: By increasing the expression of inducers of drug sensitivity markers, such as those in the serum amyloid A (SAA) family and suppressing the expression of identified drug resistance marker suppressors, such as those in the melanoma antigen (MAGE) family, trefoil factor (TFF) family, and Ras-associated binding 25 (RAB25), it may be possible to decrease drug resistance and improve the efficacy of chemotherapy for GC [53].