CD4 and hepatocellular carcinoma: The results showed that the expression of RRP12 was significantly correlated with B lymphocytes, CD8 + T lymphocytes, CD4 + T lymphocytes, macrophages, and dendritic cells in HCC (P<0.05), among which B lymphocytes and dendritic cells were significantly correlated, and the correlation between RRP12 expression level and macrophages was not statistically significant (Figure 6).