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Tumour predisposition and cancer syndromes as models to study gene-environment interactions

Michele Carbone1, Sarah T Arron2, Bruce Beutler3

  • 1Thoracic Oncology, University of Hawaii Cancer Center, Honolulu, HI, USA. mcarbone@cc.hawaii.edu.

Nature Reviews. Cancer
|May 31, 2020
PubMed

Insights

Understanding how DNA damage and mutations interact with environmental factors is key to preventing cancer. Studying tumor predisposition syndromes helps reveal these gene-environment interactions for better cancer risk assessment and treatment.

Area of Science:

  • Molecular biology
  • Genetics
  • Cancer research

Background:

  • Cell division and development are tightly regulated; dysregulation can lead to cancer.
  • DNA damage from internal or external factors, and impaired repair mechanisms, contribute to cancer.
  • Identifying environmental carcinogens is challenging due to long latency periods between exposure and diagnosis.

Purpose of the Study:

  • To investigate the role of gene-environment interactions in cancer risk.
  • To understand how germline mutations and environmental exposures influence cancer development.
  • To leverage tumor predisposition syndromes for insights into cancer etiology.

Main Methods:

  • Examining molecular mechanisms underlying cell division and DNA repair.
  • Analyzing the impact of environmental factors on cellular processes.
  • Studying individuals with tumor predisposition syndromes to identify genetic defects and environmental influences.

Main Results:

  • Germline mutations impairing DNA repair create a sensitized background for cancer development.
  • Gene-environment interactions significantly influence cancer risk.
  • Specific molecular pathways are altered by mutations and exposures, promoting tumorigenesis.

Conclusions:

  • Understanding these molecular processes is crucial for developing novel cancer prevention and therapeutic strategies.
  • Targeting gene-environment interactions offers potential for personalized cancer risk assessment.
  • Further research into environmental factors and their interplay with genetic predispositions is warranted.

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