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Facts in cancer genetics

C J Cornelisse1, P Devilee

  • 1Department of Pathology, Leiden University Medical Centre, The Netherlands. c.j.cornelisse@path_1.medfac.leidenuniv.nl

Patient Education and Counseling
|November 14, 1997
PubMed
Summary

Cancer is fundamentally a genetic disease, stemming from molecular alterations in cellular growth control. Both hereditary and sporadic cancers arise from genetic accidents, highlighting the importance of identifying cancer-related genes.

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Area of Science:

  • Molecular biology and genetics
  • Cancer research
  • Cellular biology

Background:

  • Cancer development is increasingly understood through molecular biology and genetics.
  • Cancer is fundamentally a genetic disease at the cellular level.
  • Both hereditary and sporadic cancers result from genetic alterations disrupting cellular growth control.

Purpose of the Study:

  • To underscore that cancer is a genetic disease.
  • To highlight the molecular basis of cancer, irrespective of hereditary or sporadic origin.
  • To emphasize the importance of identifying cancer-associated genes and their functions.

Main Methods:

  • Review of molecular biology and genetics research in cancer.
  • Analysis of the genetic basis of hereditary and sporadic cancers.
  • Categorization of genes involved in hereditary cancer syndromes.

Main Results:

  • Cancer is a genetic disease caused by genetic accidents affecting cellular growth control.
  • No fundamental molecular difference exists between hereditary and sporadic cancers.
  • Genes involved in hereditary cancer include tumor suppressor genes and DNA-mismatch repair genes.

Conclusions:

  • Cancer is a genetic disease at both the single-cell and individual levels.
  • Identifying cancer-related genes and their normal functions is a key research priority.
  • While germline mutations increase cancer risk, other genetic and environmental factors also play a role.

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