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Runx Genes in Breast Cancer and the Mammary Lineage

Nicholas Rooney1, Alessandra I Riggio1, Daniel Mendoza-Villanueva2

  • 1Beatson Institute for Cancer Research, Bearsden, Glasgow, G61 1BD, UK.

Advances in Experimental Medicine and Biology
|March 17, 2017
PubMed

Insights

RUNX genes play a complex role in mammary gland development and breast cancer. Their dualistic function can either promote or inhibit cancer, depending on the specific subtype.

Area of Science:

  • Molecular Biology
  • Developmental Biology
  • Oncology

Background:

  • RUNX gene function in epithelial lineages is difficult to study due to lethal knockout phenotypes.
  • Temporal expression suggests a role for RUNX genes in mammary gland development.
  • RUNX genes influence mammary epithelial cell fate, differentiation, and stem/progenitor potential.

Purpose of the Study:

  • To review the literature on RUNX and CBFβ in normal and neoplastic mammary lineages.
  • To explore the dualistic role of RUNX genes in breast cancer phenotypes.
  • To understand the implications of RUNX/CBFβ complex in breast cancer driver mutations.

Main Methods:

  • Literature review of studies on RUNX and CBFβ in mammary gland development and breast cancer.
  • Analysis of temporal gene expression patterns.
  • Examination of studies on cell fate, differentiation, and stem/progenitor potential.

Main Results:

  • RUNX genes exhibit temporal expression during mammary gland development.
  • RUNX genes regulate mammary epithelial cell differentiation and stem/progenitor potential.
  • The RUNX/CBFβ complex is implicated in breast cancer driver mutations, with RUNX genes showing dual roles in promoting or constraining cancer phenotypes.
  • RUNX gene function appears to be subtype-specific in clinical breast cancer.

Conclusions:

  • RUNX genes have a significant, albeit complex, role in mammary gland development and breast cancer.
  • The dualistic nature of RUNX gene function in breast cancer necessitates further investigation.
  • Understanding RUNX and CBFβ in mammary lineages is crucial for advancing breast cancer research.
Keywords:
Breast cancerCBFβMammary epitheliumMammary glandRUNX

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