CD8A and hepatocellular carcinoma: The hsa-miR-142 genes hsa-miR-142-5p and hsa-miR-142-3p had the second and third highest positive expression correlations with CD8+ T cell enrichment in HCC (r = 0.79 and 0.78, respectively), and the third and fourth highest positive expression correlations with cytolytic activity (both r = 0.56).