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miR-589-5p Inhibits Cell Proliferation by Targeting Histone Deacetylase 3 in Triple Negative Breast Cancer

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  • Rezgar Rahbari, Urmia University of Medical Sciences
  • ,
  • Karim Rahimi
  • ,
  • Yousef Rasmi, Urmia University of Medical Sciences
  • ,
  • Mohammad Hassan Khadem-Ansari, Urmia University of Medical Sciences
  • ,
  • Mohammad Abdi, Kurdistan University of Medical Sciences

Background: Histone deacetylase 3 (HDAC3) is a potential oncogene that is significantly up-regulated in patients with breast cancer. MicroRNAs (miRs) are a group of small non-coding and regulatory RNAs which have recently been proposed as promising molecules for breast cancer target therapy. In the current study, we investigated the impact of miR-589-5p/ HDAC3 axis on cancer cell development in triple negative breast cancer (TNBC) cells. Methods: In-silico analysis determined that miR-589-5p potentially targets HDAC3. We evaluated the HDAC3 and mir-589-5p expression levels in clinical samples and breast cancer cell lines including MDA-MB-231, MDA-MB-468, MCF-7 and MCF-10A. HDAC3 was knocked out to investigate its role on cancer cell progression. Anti-cancerous role of the miR-589-5p was assessed using an expression vector. We evaluated possible alteration in the cell cycle progression, cell viability and cell proliferation, after transient transfection. Results: HDAC3 was over-expressed in TNBC clinical samples and breast cancer cell lines compared to non-cancerous controls while miR-589-5p was down regulated in cancer cells. Suppression of HDAC3 decreased the cell viability, cell proliferation and colony formation. Similar results were observed after over-expression of the miR-589-5p. Dual-Luciferase reporter assay confirmed the direct targeting of HDAC3 by miR-589-5p. Conclusion: Our results showed that miR-589-5p mediates its anti-proliferative effects on breast cancer cells via targeting HDAC3. These findings suggest that the miR-589-5p/ HDAC3 axis could be considered as a possible therapeutic strategy in TNBC.

Original languageEnglish
JournalArchives of Medical Research
Pages (from-to)483-491
Number of pages9
Publication statusPublished - Jul 2022

Bibliographical note

Publisher Copyright:
© 2022

    Research areas

  • Cancer progression, HDAC3, miR-589-5p, Triple Negative Breast Cancer

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