Regulation of Neuroendocrine-like Differentiation in Prostate Cancer by Non-Coding RNAs
Eva Slabáková1, Zuzana Kahounová1, Jiřina Procházková1
1Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, 61265 Brno, Czech Republic.
Abstract:
Neuroendocrine prostate cancer (NEPC) represents a variant of prostate cancer that occurs in response to treatment resistance or, to a much lesser extent, de novo. Unravelling the molecular mechanisms behind transdifferentiation of cancer cells to neuroendocrine-like cancer cells is essential for development of new treatment opportunities. This review focuses on summarizing the role of small molecules, predominantly microRNAs, in this phenomenon. A published literature search was performed to identify microRNAs, which are reported and experimentally validated to modulate neuroendocrine markers and/or regulators and to affect the complex neuroendocrine phenotype. Next, available patients' expression datasets were surveyed to identify deregulated microRNAs, and their effect on NEPC and prostate cancer progression is summarized. Finally, possibilities of miRNA detection and quantification in body fluids of prostate cancer patients and their possible use as liquid biopsy in prostate cancer monitoring are discussed. All the addressed clinical and experimental contexts point to an association of NEPC with upregulation of miR-375 and downregulation of miR-34a and miR-19b-3p. Together, this review provides an overview of different roles of non-coding RNAs in the emergence of neuroendocrine prostate cancer.
Insights
Neuroendocrine prostate cancer (NEPC) arises from treatment resistance. MicroRNAs, specifically miR-375, miR-34a, and miR-19b-3p, play key roles in NEPC development and progression.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Neuroendocrine prostate cancer (NEPC) is a treatment-resistant variant of prostate cancer.
- Understanding NEPC's molecular drivers is crucial for developing novel therapies.
- Transdifferentiation to neuroendocrine-like cells is a key process in NEPC.
Purpose of the Study:
- To review the role of small molecules, particularly microRNAs (miRNAs), in NEPC development.
- To identify miRNAs experimentally validated to influence neuroendocrine markers and phenotype.
- To summarize the impact of deregulated miRNAs on NEPC and prostate cancer progression.
Main Methods:
- Literature search for miRNAs modulating neuroendocrine markers and phenotype.
- Analysis of patient expression datasets to identify deregulated miRNAs in NEPC.
- Review of current literature on miRNA detection in body fluids for liquid biopsy applications.
Main Results:
- Upregulation of miR-375 is associated with NEPC.
- Downregulation of miR-34a and miR-19b-3p is linked to NEPC.
- Specific miRNAs are implicated in prostate cancer progression and NEPC emergence.
Conclusions:
- Non-coding RNAs, especially miRNAs, significantly contribute to the development of NEPC.
- miRNAs hold potential as biomarkers for NEPC detection and monitoring via liquid biopsy.
- Targeting specific miRNAs may offer new therapeutic strategies for NEPC.
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