Co-regulated genes, as classified by unsupervised hierarchical clustering analysis, based on the genes included in the NanoString platform. Heatmap depicting gene clusters of coregulated genes that allow the recognition of signatures expressed by tumoral and stromal cells. Each column represents sample categories (AITL in red, PTCL-NOS in blue, and PTCL-TFH in green). Each row represents the expression level of a gene, depicted according to the color scale shown.