PCNA and hepatocellular carcinoma: Several lncRNA have been identified as being involved in the development and progression of HCC, such as lncRNA-HEIH [23], HOTAIR [24, 25], lncRNA MVIH [26], lncRNA-Dreh [27], HOTTIP/HOXA13 [28, 29], URHC [30], PCNA-AS1 [31], UFC1 [32], HULC [33], CCAT1 [34], PVT1 [35], ANRIL [36, 37], ZEB1-AS1 [38], PANDAR [39], DANCR [40].