Characterization of Kallireins and microRNAs in Urine Sediment for the Discrimination of Prostate Cancer from Benign Prostatic Hyperplasia

Autor: Ettore Mearini, Gabriella Guelfi, Maria Giulia Egidi, Giulia Poli, Danilo Zampini, Giovanni Cochetti, Luca Mechelli, Francesco Barillaro
Rok vydání: 2015
Předmět:
Zdroj: Journal of Cancer Science and Therapy.
ISSN: 1948-5956
DOI: 10.4172/1948-5956.1000337
Popis: Objectives: Prostate Cancer (PCa) and Benign Prostatic Hyperplasia (BPH) are frequently coexisting in elderly men. The measurement of serum PSA together with Digital Rectal Examination (DRE) represents the primary diagnostic tool to suspect PCa, whereas definitive diagnosis is achieved by prostate biopsy. The low specificity of PSA and the modest detection rate of biopsy convict the patient to a quite often unnecessary and uncomfortable clinical itinerary. There is a urgent need for new and more accurate methodologies to diagnosize PCa. In the present study, the expression of 4 mRNAs and 2 miRNAs was evaluated in post DRE urine cell pellets from patients suffering PCa and age-matched subjects affected by BPH with elevated PSA levels. We also evaluated the diagnostic accuracy of markers in predicting PCa. Materials and methods: The expression levels of 4 mRNAs (3 kallikreins - KLK3, KLK11, KLK13 and a prostate cancer antigen - PCA3) and 2 microRNAs (miR-9-3p and miR-19a-3p) were assayed by means of real-time PCR in post DRE urine of 79 men undergoing prostate biopsy for PSA levels > 3 ng/mL. The diagnostic power of tested markers was evaluated through logistic regression analysis. Results: PCA3 was undetectable in 22 out of 38 BPH subjects. KLK3 and KLK11 were significantly upregulated in PCa group (p value < 0.001), while miR-9-3p and miR-19a-3p were up-regulated in BPH group (p value
Databáze: OpenAIRE