Secondly, we measured the expression levels of five target genes of PCBP1 (CD44v6, STAT3, MAPK1, ITGB1, DAB2) based on the results of according to the analysis of mRNA sequencing in HCC and tissues and results of previous studies (Additional file 6, Fig. 4a). Here, PCBP1 is linked to hepatocellular carcinoma.