CD4 and hepatocellular carcinoma: The results suggested that the C6 expression in HCC was not associated with tumor homogeneity (partial.cor = −0.07, P = 1.91e − 01) but was significantly negatively correlated with infiltrating levels of B cells (partial.cor = −0.316, P = 2.10e − 09), CD8+ T cells (partial.cor = −0.217, P = 5.03e − 05), CD4+ T cells (partial.cor = −0.2, P = 1.95e − 09), macrophages (partial.cor = −0.38, P = 3.80e − 13), neutrophils (partial.cor = −0.242, P = 5.44e − 06), and dendritic cells (partial.cor = −0.227, P = 2.42e − 05) (Figure 5(a)).