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Involvement of HDAC1 in E-cadherin expression in prostate cancer cells; its implication for cell motility and

Nam Hyun Kim1, Su-Nam Kim, Yong Kee Kim

  • 1Department of Pharmacology, Kwandong University College of Medicine, Gangneung 210-701, Republic of Korea.

Biochemical and Biophysical Research Communications
|December 28, 2010
PubMed

Insights

Histone deacetylase (HDAC) inhibitors reduce prostate cancer cell invasion by increasing E-cadherin. HDAC1 downregulation is key to this anti-invasion effect, highlighting its role in cell motility.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Prostate cancer metastasis involves cell migration and invasion.
  • Histone deacetylase (HDAC) inhibitors are investigated for cancer therapy.
  • The precise molecular mechanisms of HDAC inhibitors in prostate cancer remain under investigation.

Purpose of the Study:

  • To elucidate the molecular mechanisms underlying the anti-invasiveness of HDAC inhibitors in prostate cancer.
  • To identify specific HDAC enzymes involved in regulating prostate cancer cell invasion.

Main Methods:

  • Prostate cancer cell lines were treated with HDAC inhibitors.
  • Cell growth inhibition, p21(WAF1) expression, and histone acetylation were assessed.
  • Cell migration and invasion assays were performed.
  • E-cadherin expression levels were analyzed via Western blot and siRNA knockdown.
  • Specific HDAC1 and HDAC2 downregulation was achieved using siRNA.

Main Results:

  • HDAC inhibitors inhibited prostate cancer cell growth, induced p21(WAF1) expression, and increased histone acetylation.
  • HDAC inhibitors significantly reduced cancer cell migration and invasion.
  • E-cadherin expression was markedly upregulated following HDAC inhibitor treatment.
  • siRNA-mediated knockdown of E-cadherin attenuated the anti-invasive effects of HDAC inhibitors.
  • Specific downregulation of HDAC1, but not HDAC2, led to increased E-cadherin expression and reduced cell motility and invasion.

Conclusions:

  • HDAC inhibitors exhibit anti-invasive properties against prostate cancer cells.
  • E-cadherin upregulation is a critical mechanism mediating the anti-invasion effects of HDAC inhibitors.
  • HDAC1 is identified as a key enzyme repressing E-cadherin expression and is crucial for HDAC inhibitor-induced anti-invasiveness in prostate cancer.

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