Mass spectrometry-based biomarkers to detect prostate cancer: a multicentric study based on non-invasive urine collection without prior digital rectal examination

Frantzi, M. et al. (2023) Mass spectrometry-based biomarkers to detect prostate cancer: a multicentric study based on non-invasive urine collection without prior digital rectal examination. Cancers, 15(4), 1166. (doi: 10.3390/cancers15041166) (PMID:36831508) (PMCID:PMC9954607)

Abstract

(1) Background: Prostate cancer (PCa) is the most frequently diagnosed cancer in men. Wide application of prostate specific antigen test has historically led to over-treatment, starting from excessive biopsies. Risk calculators based on molecular and clinical variables can be of value to determine the risk of PCa and as such, reduce unnecessary and invasive biopsies. Urinary molecular studies have been mostly focusing on sampling after initial intervention (digital rectal examination and/or prostate massage). (2) Methods: Building on previous proteomics studies, in this manuscript, we aimed at developing a biomarker model for PCa detection based on urine sampling without prior intervention. Capillary electrophoresis coupled to mass spectrometry was applied to acquire proteomics profiles from 970 patients from two different clinical centers. (3) Results: A case-control comparison was performed in a training set of 413 patients and 181 significant peptides were subsequently combined by a support vector machine algorithm. Independent validation was initially performed in 272 negative for PCa and 138 biopsy-confirmed PCa, resulting in an AUC of 0.81, outperforming current standards, while a second validation phase included 147 PCa patients. (4) Conclusions: This multi-dimensional biomarker model holds promise to improve the current diagnosis of PCa, by guiding invasive biopsies.

• Item Type: Articles
• Additional Information: This work was supported in part by the BioGuidePCa (E! 11023, Eurostars) funded by BMBF (Germany), and partly by Spanish grant ICSIII and the European Social Funds (FSE) (PI22/01769).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Mischak, Professor Harald

Creator Roles

Mischak, H.: Conceptualization, Investigation, Resources, Writing – review and editing, Supervision, Funding acquisition

• Authors: Frantzi, M., Culig, Z., Heidegger, I., Mokou, M., Latosinska, A., Roesch, M. C., Merseburger, A. S., Makridakis, M., Vlahou, A., Blanca-Pedregosa, A., Carrasco-Valiente, J., Mischak, H., and Gomez-Gomez, E.
• College/School: College of Medical Veterinary and Life Sciences > School of Cardiovascular & Metabolic Health
• Journal Name: Cancers
• Publisher: MDPI
• ISSN: 2072-6694
• ISSN (Online): 2072-6694
• Published Online: 11 February 2023
• Copyright Holders: Copyright © 2023 The Authors
• First Published: First published in Cancers 15(4): 1166
• Publisher Policy: Reproduced under a Creative Commons License
• Data DOI: 10.5281/zenodo.7583241