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Neoplasma Vol.69, No.2, p.404–411, 2022 |
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Title: Correlation between radiological and biological features and clinical outcomes in early prostate cancer: an exploratory subgroup analysis | ||
Author: Giulia Corrao, Giulia Marvaso, Mattia Zaffaroni, Stefania Volpe, Matteo Augugliaro, Cristiana Iuliana Fodor, Dario Zerini, Andrea Vingiani, Francesco Alessandro Mistretta, Stefano Luzzago, Sarah Alessi, Paola Pricolo, Gennaro Musi, Ottavio De Cobelli, Giuseppe Renne, Marco Manzoni, Giuseppe Petralia, Roberto Orecchia, Barbara Alicja Jereczek-Fossa | ||
Abstract: PTEN deletion and Ki-67 expression are two of the most promising biomarkers in prostate cancer (PCa). In the same manner, multiparametric magnetic resonance imaging (mp-MRI) guided core biopsy is a powerful tool for PCa detection and staging. The aim of the study is to assess whether a correlation can be identified between the pathological stage defined by an mp-MRI-guided core-biopsy and Ki-67 expression and PTEN deletion. Such correlation might be useful for staging and treatment personalization in PCa. This investigation was conducted in the context of phase II clinical study "Short-term radiotherapy for early prostate cancer with a concomitant boost to the dominant lesion" (AIRC IG-13218), ClinicalTrials.gov identifier: NCT01913717. Nineteen patients underwent a further in-bore MRI-targeted core biopsy (MRI-TBx) on the dominant intraprostatic lesion (DIL); on this basis, an additional Gleason Score (GS) was determined. PTEN loss and Ki-67 expression on these samples were analyzed and correlated with both risk categories modifications and oncological outcomes (overall survival, biochemical and clinical relapse). GS was upgraded in 5 cases, with 4 patients re-classified as intermediate-risk and 1 patient as high-risk. The latter experienced a clinical local relapse. No correlations between up/down-staging, PTEN deletion, and Ki-67 expression were observed in this cohort. Further investigations are needed towards the identification of a pattern in the tumor aggressiveness-response in PCa treated with ultra-hypofractionated radiotherapy. Moreover, a possible relationship between biomarker analysis and imaging textural features could be explored. |
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Keywords: PTEN; Ki-67; biomarkers; early prostate cancer; mp-MRI | ||
Published online: 11-Jan-2022 | ||
Year: 2022, Volume: 69, Issue: 2 | Page From: 404, Page To: 411 | |
doi:10.4149/neo_2021_210622N828 |
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