CD8A and hepatocellular carcinoma: Using the TIMER database, the correlation between TOP2A expression and hepatocellular cancer immune cell immersion showed that TOP2A gene expression was related to the level of immune immersion of cell purity, B cells, CD8 plus T cells, neutrophils, macrophages, dendritic cells, which may be involved in the immune immersion process of liver cell cancer cells; The following illustration shows that TOP2A expression has some effect on immune infiltration and hepatocellular carcinoma cancer cell purity (r-0.186), which is positively correlated with B-cells (r-0.459) and CD8-T cells (r-0.312).