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Updated: Jun 20, 2026

miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Towards the definition of prostate cancer-related microRNAs: where are we now?
Paolo Gandellini1, Marco Folini, Nadia Zaffaroni
1Department of Experimental Oncology and Laboratories, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
Abstract:
Eradication of advanced prostate cancer still represents an unsolved clinical problem, making the development of alternative treatment approaches highly desirable. Understanding the molecular alterations that distinguish non-progressive from progressive disease would provide mechanistic information for the identification of new therapeutic targets. Recent findings indicate that human tumors have deregulated expression of microRNAs, which have thus been proposed as novel oncogenes or tumor suppressors. A few studies have analyzed the expression profiles or the functional role of microRNAs in prostate cancer, generating largely inconsistent data. Here we review the major issues that have hindered the identification of prostate cancer-related microRNAs, outlining an approach for rational validation of candidates that might be clinically relevant in the management of this disease.
Insights
Identifying microRNAs in prostate cancer is challenging due to inconsistent data. This review proposes a rational approach to validate microRNAs for advanced prostate cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Advanced prostate cancer eradication remains a significant clinical challenge.
- Understanding molecular changes is crucial for identifying new therapeutic targets.
- MicroRNAs are implicated in human tumors, acting as oncogenes or tumor suppressors.
Purpose of the Study:
- To review challenges in identifying prostate cancer-related microRNAs.
- To propose a rational approach for validating clinically relevant microRNAs.
- To aid in the development of alternative treatment strategies for advanced prostate cancer.
Main Methods:
- Literature review of studies on microRNA expression and function in prostate cancer.
- Analysis of factors contributing to inconsistent data in previous research.
- Development of a framework for rational validation of candidate microRNAs.
Main Results:
- Previous studies on prostate cancer microRNAs have yielded inconsistent data.
- Several factors hinder the accurate identification of relevant microRNAs.
- A systematic approach is needed for reliable microRNA candidate validation.
Conclusions:
- Consistent identification of prostate cancer-related microRNAs is hampered by methodological issues.
- A structured validation strategy is essential for clinical relevance.
- Validated microRNAs could offer novel therapeutic targets for advanced prostate cancer management.
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