Beyond BRCA: new hereditary breast cancer susceptibility genes

P Economopoulou1, G Dimitriadis1, A Psyrri1

  • 1Oncology Unit, 2nd Department of Internal Medicine, Attikon University Hospital, National Kapodistrian University of Athens, Greece.

Cancer Treatment Reviews
|December 4, 2014
PubMed

Insights

Genetic research is identifying new breast cancer susceptibility genes beyond BRCA1/2. Discovering these genes offers new avenues for breast cancer prevention strategies.

Area of Science:

  • Genetics
  • Oncology
  • Molecular Biology

Background:

  • Inherited factors contribute to 5-10% of breast cancer cases.
  • BRCA1/2 mutations account for up to 30% of hereditary breast cancers.
  • Technological advancements drive the search for additional breast cancer susceptibility genes.

Purpose of the Study:

  • To review current findings on newly identified breast cancer susceptibility genes.
  • To highlight the importance of gene discovery for cancer prevention.

Main Methods:

  • Literature review of recent studies on breast cancer genetics.
  • Analysis of emerging data on gene mutations and their penetrance.

Main Results:

  • Identification of high-penetrance genes (TP53, PTEN) with rare germline mutations.
  • Identification of moderate-penetrance genes (CHEK2, ATM, PALB2) with more frequent mutations.
  • Emergence of new genes contributing to hereditary breast cancer risk.

Conclusions:

  • Several new genes are recognized as breast cancer susceptibility factors.
  • Understanding these genes enhances opportunities for primary and secondary breast cancer prevention.
  • Continued research into genetic susceptibility is crucial for advancing cancer care.

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