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MicroRNA-1301 induces cell proliferation by downregulating ICAT expression in breast cancer

Wei-Hao Lin1, Jie Li1, Bing Zhang2

  • 1Department of Thyroid & Breast Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, PR China.

Biomedicine & Pharmacotherapy = Biomedecine & Pharmacotherapie
|October 8, 2020
PubMed

Insights

MicroRNA-1301 (miR-1301) is upregulated in breast cancer, promoting cell proliferation by targeting ICAT and the Wnt/β-Catenin pathway. This suggests miR-1301 as a potential therapeutic target for breast cancer treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Breast cancer remains a leading cause of cancer-related deaths globally, with poor long-term prognosis often linked to a lack of effective early diagnostic biomarkers.
  • The identification of sensitive and specific biomarkers is crucial for improving diagnostic and therapeutic strategies in breast cancer management.

Purpose of the Study:

  • To investigate the role of microRNA-1301 (miR-1301) in breast cancer proliferation.
  • To identify potential molecular targets and pathways regulated by miR-1301 in breast cancer.

Main Methods:

  • Analysis of miR-1301 expression levels in breast cancer cell lines and tissues.
  • In vitro experiments to assess the impact of miR-1301 upregulation and downregulation on breast cancer cell proliferation.
  • Biological assays to determine the direct interaction between miR-1301 and ICAT, and its effect on the Wnt/β-Catenin pathway.

Main Results:

  • miR-1301 expression was significantly upregulated in breast cancer cell lines and tissues.
  • Upregulation of miR-1301 promoted breast cancer cell proliferation in vitro, while its downregulation inhibited proliferation.
  • miR-1301 was found to directly target and suppress the expression of ICAT, a key regulator of the Wnt/β-Catenin pathway.

Conclusions:

  • miR-1301 plays a significant role in promoting breast cancer cell proliferation.
  • The miR-1301/ICAT axis represents a novel mechanism influencing the Wnt/β-Catenin pathway in breast cancer.
  • miR-1301 emerges as a potential novel therapeutic target for microRNA-mediated breast cancer treatment.
Keywords:
Breast cancerICATMiR-1301ProliferationWnt/β-catenin pathway

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