Figure 4.
Transcriptomic characterization of the papillary renal cell carcinoma tumor microenvironment subtypes defined by IHC. (A) Volcano plot representing the messenger RNAs differential-expression analysis (=32,378 genes) from DESeq2, between the two groups identified from IHC in the AXIPAP trial cohort (n=30). Under the condition of log2 (fold-change) >2 and p adjusted <0.01, five differentially overexpressed genes were identified between the two groups (red circle). (B) Kaplan-Meier survival curves (overall survival (OS)) according to subgroups with a “high transcriptomic signature” and “low transcriptomic signature”, defined as a median of the five significant differentially overexpressed genes. IHC, immunohistochemistry.