Figure 7.
Correlation matrix of genes involved in the MHC-II antigen presentation pathway in GC subtypes. Heatmap of Spearman correlation analysis of mRNA expression of the indicated MHC-II pathway genes in EBVaGC (A). Comparisons with EBV genes reported to antagonize interferon-γ response are also shown. Spearman correlations between mRNA levels for IFNG and MHC-II pathway genes are also shown for the CIN (B), GS (C), and MSI (D) subtypes. Numbers in boxes indicate Spearman’s rank correlation coefficient of analyzed gene pairs and p-values. Figure was generated using the ggplot2 package in RStudio (version 1.2.1335; https://rstudio.com) and final figure layouts were adjusted with Adobe Illustrator (version CS6).