CXCL2 and hepatocellular carcinoma: Figures 5B, C exhibited the heatmaps of the top 50 genes positively and negatively correlated with CXCL2, respectively (Supplementary Tables S3, S4). Notably, the top 50 positively correlated genes owned a high probability of being low-risk markers in HCC, of which 9/50 genes harbored protective hazard ratio (HR). Contrarily, there were 33 of the top 50 negatively associated genes with unfavorable HR (Figures 5D, E).