Whole slides from radical prostatectomy were examined for ASPN expression in stroma adjacent to benign prostate (n = 21) and in Gleason grade 3 (n = 13), Gleason grade 4 without cribriform morphology (n = 17), and Gleason grade 4 with cribriform morphology (n = 12) prostate cancer (see supplementary material, Table S4). This evidence concerns the gene ASPN and prostate cancer.