Interestingly, we noticed that the fraction of Treg cells in the tumor mesenchyme was the highest in the TMB-H subtype (p = 0.008), but the difference in the ratio of Treg cell fractions to CD8+ T cell fractions in the tumor mesenchyme was not significant across the three subtypes (Figures 5E–H and Table S3). Here, CD8A is linked to neoplasm.