MCM4 and hepatocellular carcinoma: Other elevated proteins in HCC tissues, such as POSTN [31, 32], S100P [33], ACSL4 [34], MCM6 [35], MCM4 [36], SMAP [37], PLIN2 [38], G6PD [39, 40], MCM2 [41], have been revealed to regulate hepatocarcinogenesis (Supplementary Table 1).