Aim: A higher Gleason score was associated with a lower tumor urotensin II receptor (UTII-R) expression in prostate cancer patients.
Methods: A retrospective review of formalin-fixed paraffin-embedded tumor tissue derived from those who had prostatectomy and matching biopsy specimens was conducted at six Institutions. UTII-R expression was evaluated on biopsy by immunohistochemistry.
Results: A total of 58 subjects undergoing radical prostatectomy were included. At multivariate analysis, low UTII-R expression was a significant predictor of Gleason upgrading, with an odds ratio of 10.3 (95% CI: 1.55-68.4), and of pathology upstaging, with an odds ratio of 11.1 (95% CI: 1.23-100.48).
Conclusions: UTII-R expression on biopsy was associated with Gleason upgrading and pathology upstaging in prostate cancer patients.
Keywords: Gleason score; prostate cancer; urotensin II receptor.