Expression of HNRNPM correlated with immune checkpoint in human HCC.A-E, Expression correlation between HNRNPM and immune checkpoint gene RNA amounts in the TCGA HCC database, n = 370, HNRNPM (HNRNPM), PD-L1 (CD274), B7-H3 (CD276), B7-H4 (VTCN1), LAG-3 (LAG3), and TIM-3 (HAVCR2). B, Pearson correlation analysis of HNRNPM and CD276 immune checkpoint expressions in human HCC tissue microarray based on the IHC results, n = 240.