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Updated: Aug 7, 2026

Evaluating the Effectiveness of Cancer Drug Sensitization In Vitro and In Vivo
Published on: February 6, 2015
Positive selection in the evolution of cancer
Bernard J Crespi1, Kyle Summers
1Behavioural Ecology Research Group, Department of Biology, Simon Fraser University, Burnaby, BC V5A 1 S6 Canada. crespi@sfu.ca
Antagonistic coevolution, driven by conflicts like those between sexes or hosts and parasites, may increase cancer risk. Genes involved in these evolutionary conflicts can promote cancer as a secondary effect.
Area of Science:
- Evolutionary biology
- Molecular genetics
- Cancer research
Background:
- Antagonistic coevolution involves evolutionary conflicts between interacting biological entities with divergent fitness interests.
- Such conflicts can drive rapid genetic evolution, potentially leading to maladaptation and disease.
Purpose of the Study:
- To test the hypothesis that antagonistic coevolution at the molecular level is linked to increased cancer risk.
- To explore the role of evolutionary conflicts in shaping genetic systems and their secondary effects on cancer.
Main Methods:
- Review of studies on specific genes implicated in cancer and coevolution (e.g., SPANX, BRCA1, Y-linked genes).
- Analysis of large-scale database studies examining selection pressures on different gene functional categories.
Main Results:
- Evidence suggests a link between genes involved in antagonistic coevolutionary conflicts and cancer risk.
- Specific gene families and categories show patterns supporting the hypothesis.
Conclusions:
- Antagonistic coevolution may be a significant factor contributing to the evolutionary basis of cancer.
- Understanding these dynamics is crucial for comprehending cancer development and evolution.
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