Stratification of aggressive prostate cancer from indolent disease—Prospective controlled trial utilizing expression of 11 genes in apparently benign tissue

Autor: Esa Kähkönen, Terhi Tallgren, Saeid Alinezhad, Peter J. Boström, Otto Ettala, Kari T. Syvänen, Markku Kallajoki, Pekka Taimen, Ileana Montoya Perez, Kim Pettersson, Hannu J. Aronen, Riina-Minna Väänänen, Matthias Nees, Ivan Jambor
Rok vydání: 2016
Předmět:
Zdroj: Urologic Oncology: Seminars and Original Investigations. 34:255.e15-255.e22
ISSN: 1078-1439
Popis: Background: The aim of the study was to evaluate the diagnostic power of molecular markers in men with a clinical suspicion of prostate cancer (PCa) using apparently benign areas as targeted by magnetic resonance imaging (MRI). Methods: In the study, 99 consecutive men with clinical suspicion of PCa in a prospective controlled trial (IMPROD, NCT01864135) were included. In addition to 12-core systematic and MRI-targeted biopsies, cores from normal-appearing prostate areas, based on clinical examination, ultrasound, and biparametric prostate MRI, were obtained. The RNA transcript levels of ACSM1, AMACR, CACNA1D, DLX1, KLK3, PCA3, PLA2G7, RHOU, SPINK1, SPON2, TMPRSS2-ERG, and TDRD1 were measured with quantitative reverse-transcription polymerase chain reaction. Results: Of the 99 men, 69 were diagnosed with PCa, 31 with primary Gleason pattern 3 and 38 with primary Gleason 4 or 5. TDRD1 messenger RNA (mRNA) levels were 1.3 times higher (P = 0.029) and the presence of TMPRSS2-ERG mRNAs more frequent in biopsies from men diagnosed with PCa (27/69, 39%) than in men without (5/30, 16%) (P = 0.035). The 2 markers identified aggressive PCa defined as Gleason sum≥7 at biopsy: median TDRD1 mRNA level was 1.4 higher (P = 0.005) and TMPRSS2-ERG expression more frequent (P
Databáze: OpenAIRE