Related Experiment Video

Updated: Jun 13, 2025

miRNA Expression Analyses in Prostate Cancer Clinical Tissues
11:29

miRNA Expression Analyses in Prostate Cancer Clinical Tissues

Published on: September 8, 2015

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Androgen receptor modulatory miR-1271-5p can promote hormone sensitive prostate cancer cell growth

Foteini Kalofonou1, Damien A Leach1, Sue M Powell1

  • 1Androgen Signalling and Prostate Cancer Laboratory, Imperial Centre of Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College, London, United Kingdom.

Frontiers in Oncology
|September 13, 2024
PubMed

Insights

MicroRNA-1271-5p promotes prostate cancer growth by modulating androgen receptor signaling. Inhibiting this microRNA may offer a new therapeutic strategy for advanced prostate cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Hormonal therapy resistance is a major challenge in advanced prostate cancer.
  • Androgen receptor (AR) signaling remains a key driver even in advanced stages.
  • MicroRNAs (miRs) are non-coding RNAs that regulate gene expression and can act as tumor suppressors or oncomiRs.

Purpose of the Study:

  • To identify microRNAs involved in androgen receptor signaling in prostate cancer.
  • To investigate the role of miR-1271-5p in prostate cancer cell growth and progression.
  • To evaluate miR-1271-5p as a potential therapeutic target.

Main Methods:

  • Identification of miR-1271-5p as an AR-modulatory microRNA.
  • Experimental manipulation of miR-1271-5p levels (inhibition/overexpression) in prostate cancer cells.
  • Assessment of effects on cell growth, apoptosis, and gene expression (AR target genes).

Main Results:

  • miR-1271-5p was identified as a microRNA that modulates androgen receptor activity.
  • Overexpression of miR-1271-5p promoted hormone-sensitive prostate cancer cell growth.
  • Modulating miR-1271-5p levels impacted prostate cancer cell growth, apoptosis, and AR target gene expression.

Conclusions:

  • miR-1271-5p plays a role in driving hormone-dependent prostate cancer progression.
  • Targeting miR-1271-5p with specific inhibitors may represent a novel therapeutic approach for prostate cancer.
  • miR-1271-5p has potential as both a biomarker and therapeutic target in prostate cancer.
Keywords:
antisense oligonucleotides (ASOs)apoptosisenzalutamidemicroRNAs (miRs)prostate cancer

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