Fig. 1

FAP stromal tissue expression. (A) Mean fibroblast-activation-protein (FAP) stromal tissue expression levels (H-index) in benign samples (benign) (n = 34), samples from patients with primary prostate cancer (treatment-naive) (n = 36), neoadjuvant androgen deprivation therapy before radical prostatectomy (NHT) (n = 27), castration-resistant prostate cancer (CRPC) (n = 44) and neuroendocrine prostate cancer (NEPC) (n = 44); corresponding, representative images of IHC staining against FAP, (B) benign, (C) treatment-naive, (D) NHT, (E) CRPC, and (F) NEPC; scale bar 200 μm