HIF1A and hepatocellular carcinoma: For example, lncRNA HIF1A-AS1 [28] and ZEB1-AS1 [29] were recently proved to be associated with HCC progression via ceRNA pattern, while lncRNA TTN-AS1 was demonstrated to act as a tumor promoter in gallbladder carcinoma by sponging miR-107 and upregulating HMGA1 [30].