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Familial breast cancer

B L Weber1

  • 1Stellar-Chance Laboratories, University of Pennsylvania Medical Center, Philadelphia 19104, USA.

Recent Results in Cancer Research. Fortschritte Der Krebsforschung. Progres Dans Les Recherches Sur Le Cancer
|January 1, 1996
PubMed
Summary

Genetic research has identified key breast cancer genes like BRCA1 and BRCA2, enabling DNA testing for personalized risk assessment in families. Further studies will improve understanding and prevention strategies for hereditary breast cancer.

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Area of Science:

  • Oncology
  • Genetics
  • Epidemiology

Background:

  • Recent advancements in understanding the genetic underpinnings of breast cancer.
  • Development of epidemiological models for breast cancer risk estimation in women with affected relatives.
  • Documentation of two major autosomal dominant breast cancer susceptibility genes: BRCA1 and BRCA2.

Purpose of the Study:

  • To summarize the progress in identifying breast cancer susceptibility genes.
  • To highlight the implications of BRCA1 and BRCA2 isolation for genetic testing and risk prediction.
  • To discuss the future directions in breast cancer genetics research.

Main Methods:

  • Isolation and characterization of the BRCA1 gene.
  • Cataloging of BRCA1 mutations associated with familial breast cancer.
  • Ongoing research efforts for the isolation and functional studies of the BRCA2 gene.

Main Results:

  • BRCA1 has been isolated, and mutations are being identified as etiologically related to breast cancer in specific families.
  • The isolation of BRCA2 is progressing rapidly.
  • Studies are underway to understand the normal function of BRCA1 and BRCA2 in cancer prevention.

Conclusions:

  • The identification and study of BRCA1 and BRCA2 will facilitate accurate DNA-based risk prediction for individuals with a family history of breast cancer.
  • Understanding the function of these genes will enhance knowledge of breast cancer etiology.
  • The discovery of additional breast cancer susceptibility genes is anticipated, expanding future research and prevention tools.

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