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Updated: Oct 16, 2025

miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Prostate cancer: Alternatively spliced mRNA transcripts in tumor progression and their uses as therapeutic targets
Ali Calderon-Aparicio1, Bi-Dar Wang1
1Department of Pharmaceutical Sciences, School of Pharmacy and Health Professions, University of Maryland Eastern Shore, Princess Anne, MD 21853, USA.
Abstract:
Prostate cancer is the most frequently diagnosed cancer and second leading cause of cancer deaths among American men. Current therapies show early antitumor responses, but ultimately lead to treatment resistance, relapse and poorer survival in patients. Alternative RNA splicing, a cell mechanism increasing the proteome diversity by producing multiple transcripts from a single gene, has been associated with prostate cancer development/progression. Reports showed that many aberrant mRNA splice variants are upregulated in prostate cancer, promoting malignancy through enhanced proliferation, metastasis, tumor growth, anti-apoptosis, and/or treatment resistance. Here, we discuss the oncogenic properties of aberrant splicing mechanisms underlying prostate cancer pathogenesis, as well as the uses of the splicing variants as potential diagnostics and treatment targets. Finally, we discuss the pharmacologic and molecular approaches for targeting aberrant splicing mechanisms as effective therapies to correct the splicing errors and overcome the drug resistance, ultimately improving the clinical outcome of prostate cancer patients.
Insights
Aberrant RNA splicing drives prostate cancer progression and treatment resistance. Targeting these splicing errors offers a promising therapeutic strategy to improve patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Prostate cancer is a leading cause of cancer death in men, with current therapies often failing due to treatment resistance and relapse.
- Alternative RNA splicing, a process generating multiple protein variants from a single gene, is frequently dysregulated in cancer.
- Aberrant mRNA splice variants are increasingly recognized as key drivers of prostate cancer malignancy.
Purpose of the Study:
- To review the oncogenic roles of aberrant splicing in prostate cancer.
- To explore the potential of splice variants as diagnostic markers and therapeutic targets.
- To discuss strategies for targeting aberrant splicing mechanisms to overcome treatment resistance.
Main Methods:
- Literature review and synthesis of existing research on RNA splicing in prostate cancer.
- Analysis of studies investigating the functional impact of aberrant splice variants.
- Discussion of current and emerging therapeutic approaches targeting splicing.
Main Results:
- Aberrant splicing promotes prostate cancer by enhancing proliferation, metastasis, and anti-apoptosis.
- Upregulated splice variants contribute significantly to treatment resistance and poor patient survival.
- Splicing mechanisms represent viable targets for novel prostate cancer therapies.
Conclusions:
- Aberrant RNA splicing is a critical factor in prostate cancer pathogenesis and therapeutic failure.
- Targeting aberrant splicing pathways holds significant potential for improving diagnostic accuracy and treatment efficacy.
- Developing therapies that correct splicing errors could overcome drug resistance and enhance clinical outcomes for prostate cancer patients.
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