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Hypothesis: more mutations to cure cancer?

F Eisinger1, H Sobol, D Birnbaum

  • 1Departement d'Oncogenetique, E9939 Inserm, Institut Paoli-Calmettes, Marseille, France.

Oncology Reports
|October 19, 1999
PubMed

Insights

Certain mutation combinations in cancer may be detrimental, not beneficial. Our study reveals specific genetic event associations are under-represented in breast tumors, suggesting a new therapeutic strategy.

Area of Science:

  • Oncology
  • Cancer Genetics

Background:

  • Cancer develops due to the accumulation of genetic mutations.
  • The prevailing view is that mutations driving cancer are always selected for.

Purpose of the Study:

  • To investigate the hypothesis that certain combinations of mutations might be counterselected during cancer development.
  • To explore the implications of mutation counterselection for cancer therapeutics.

Main Methods:

  • Analysis of allelotyping data from human breast tumors.
  • Statistical assessment of the co-occurrence of specific genetic events.

Main Results:

  • Demonstrated that particular associations of genetic events are statistically under-represented in breast tumors.
  • Identified specific mutation combinations that appear to be disadvantageous for tumor growth.

Conclusions:

  • Challenges the notion that all mutation combinations are beneficial in cancer.
  • Proposes that the counterselection of specific mutations offers a novel therapeutic avenue for cancer treatment.

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