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Related Experiment Videos

Cancer genetics fundamentals.

J Peters1, J Loud, E Dimond

  • 1Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD 20852, USA. petersju@mail.nih.gov

Cancer Nursing
|January 5, 2002
PubMed
Summary
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Cancer is a genetic disease involving fundamental changes in cell growth, death, and replication. Understanding these genetic alterations, including sustained angiogenesis and metastasis, is key to cancer research.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Cancer is commonly described as a genetic disease.
  • The underlying genetic basis and molecular mechanisms of cancer require clear explanation.

Purpose of the Study:

  • To define what makes cancer a genetic disease.
  • To explain fundamental genetic alterations common to all cancers.

Main Methods:

  • Review of basic cancer genetics terminology.
  • Presentation of models of carcinogenesis.
  • Explanation of six key hallmarks of cancer progression.

Main Results:

  • Cancer involves self-sufficiency in growth signals.
  • Insensitivity to growth inhibition and evasion of apoptosis are critical.

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  • Limitless replicative potential, sustained angiogenesis, and metastasis are key features.
  • Genetic instability at chromosomal and gene levels underlies these changes.

    • Conclusions:

    • Cancer's genetic nature is defined by specific molecular and cellular alterations.
    • These hallmarks, enabled by genetic instability, represent fundamental cancer mechanisms.