Figure 6. Analysis of immune microenvironment between different subtypes. (A–D) The difference between the two clusters in immune score, stromal score, ESTIMATE score and tumor purity, P-values are represented by *. (E) Seven algorithms were used to analyze immune cell or functional differences between CI and C2 subtypes. (F) Differences in the expression of immune checkpoint related genes between CI and C2 subtypes, P-values are indicated by *. *: p<0.05, **: p<0.01, ***: p<0.001, “ns” indicates no significant difference.