PVT1 and gastric cancer: PVT1 regulated oral squamous cell carcinoma by sponging miR-28-5p [34], and non-small cell Lung cancer by sponging miR-17-5p or miR-526b [35, 36], and gastric cancer cells by sponging miR-125 [37], and gallbladder by sponging miR-143.