R.O. Danylets

Diagnostic and prognostic value of PCA 3 score in patients with prostate tumors

Objectives: to determine the concentration of PCA3 gene mRNA in urine in patients with prostate tumors and estimate the diagnostic and prognostic value of it’s coefficient.

Material and methods: 246 patients, 107 of which having prostate malignancies, 71 - BPH, and others without any prostate pathologies, have been recruited in cross-sectional, randomized studies carried out in the Ukrainian state institution of urology affiliated to the Academy of medical sciences of Ukraine. Determination of gene PCA 3 mRNA was performed by quantitative polymerase-chain reaction in real time (qRT-PCR) in conjunction with reverse transcription of primary product, thereafter the PCA 3 score for each patient being calculated.

Results: PCA 3 mRNA contents in urinary sediments of expressed prostatic secretions of patients with PCa was shown to exceed significantly its values in patients with BPH and CHM-group. In turn, PCA 3 score which proved to be index of PCA 3 gene expression in the present in urinary sediments malignant epithelial cells, normalized by the expression of KLK 3 gene, was established to be endowed with prognostic properties appropriate for the application in laboratory diagnostics for prostate adenocarcinoma emerging prognosis. Meanwhile a said biomarker was ineffective in testing tumor aggressiveness and tumor clinical stage.

Conclusion: The clinical investigation of PCA 3 score prognostic properties is proposed to be expanded by recruiting more patients with PCa that appears to be of great use for further elucidation of PCA 3 score general diagnostic potential.