ATG12 and gastric cancer: For example, metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) functions as a competing endogenous RNA (ceRNA) to attenuate the inhibitory effect of miR-23b-3p on autophagy-related protein 12 (ATG12), and then leads to chemo-induced autophagy and chemoresistance in GC [11].