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MicroRNA124 regulate cell growth of prostate cancer cells by targeting iASPP

Jun Chen1, Hengjun Xiao2, Zhansen Huang3

  • 1Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University Guangzhou 510006, P. R. China ; Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-Sen University Guangzhou 510630, P. R. China.

International Journal of Clinical and Experimental Pathology
|June 27, 2014
PubMed

Insights

MicroRNA-124 (mir124) targets and suppresses Protein Phosphatase 1, Regulatory Subunit 13 Like (iASPP) expression. This finding reduces prostate cancer cell proliferation and viability, offering a potential therapeutic strategy.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Regulation

Background:

  • Protein phosphatase 1, regulatory subunit 13 like (PPP1R13L), or iASPP, is highly expressed in prostate cancer.
  • Previous studies show iASPP suppression reduces cancer cell proliferation via RNA interference.
  • MicroRNAs regulate gene expression post-transcriptionally and are implicated in cell proliferation.

Purpose of the Study:

  • To investigate the effect of microRNA-124 (mir124) on iASPP expression and prostate cancer cell proliferation in vitro.
  • To confirm the direct interaction between mir124 and iASPP mRNA.
  • To evaluate mir124 as a potential therapeutic agent against prostate cancer.

Main Methods:

  • In vitro reporter assay to confirm mir124 binding to the 3'UTR of iASPP mRNA.
  • Lentiviral infection to express mir124 in PC3 prostate cancer cells.
  • Use of artificial shRNA as a control for gene silencing.

Main Results:

  • In vitro reporter assays confirmed mir124 directly binds to the 3'UTR of iASPP, suppressing its mRNA expression.
  • Lentivirus-mediated mir124 expression significantly decreased the proliferation and viability of PC3 cells.
  • Endogenous iASPP levels were effectively knocked down by mir124 expression.

Conclusions:

  • MicroRNA-124 effectively targets and downregulates iASPP in prostate cancer cells.
  • mir124 demonstrates potential as a therapeutic agent by inhibiting prostate cancer cell proliferation and viability.
  • The findings highlight the role of mir124 in regulating iASPP and suggest a novel therapeutic avenue for prostate cancer treatment.
Keywords:
Mir124cell growthiASPPprostate cancer

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