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How latent viruses cause breast cancer: An explanation based on the microcompetition model

Hanan Polansky1, Hava Schwab

  • 1The Center for the Biology of Chronic Disease (CBCD), New York, NY, USA. hpolansky@cbcd.net.

Bosnian Journal of Basic Medical Sciences
|December 24, 2018
PubMed

Insights

Latent viruses in breast tumors may decrease BRCA1 protein levels, contributing to sporadic breast cancer development. This research explores the microcompetition model to understand this link.

Area of Science:

  • Oncology
  • Molecular Biology
  • Virology

Background:

  • Most breast cancer cases exhibit reduced BRCA1 protein levels, but without BRCA1 gene mutations.
  • The cause of decreased BRCA1 concentration in sporadic, non-heritable breast cancer remains unclear.
  • Latent viruses are frequently found in breast cancer tumors.

Purpose of the Study:

  • To investigate the potential role of latent viruses in reducing BRCA1 expression in breast cancer.
  • To explain the mechanism behind decreased BRCA1 concentration in sporadic breast cancer cases using the Microcompetition Model.

Main Methods:

  • Review of existing literature on BRCA1, breast cancer, and viral presence in tumors.
  • Application of the Microcompetition Model to hypothesize viral impact on gene expression.
  • Analysis of how viral activity could affect BRCA1 protein levels.

Main Results:

  • The Microcompetition Model provides a plausible explanation for decreased BRCA1 expression.
  • Latent viruses can potentially compete for cellular resources, leading to reduced BRCA1 gene expression.
  • This viral-driven downregulation of BRCA1 may contribute to breast tumor development.

Conclusions:

  • Latent viruses represent a potential cause for decreased BRCA1 concentration in sporadic breast cancer.
  • The Microcompetition Model offers a framework for understanding virus-mediated oncogenesis.
  • Further research is warranted to confirm the direct causal link between specific viruses and BRCA1 downregulation in breast cancer.

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