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Updated: Jun 1, 2026

Cell Population Analyses During Skin Carcinogenesis
Published on: August 21, 2013
Is carcinogenesis a form of speciation?
Peter Duesberg1, Daniele Mandrioli, Amanda McCormack
1Department of Molecular and Cell Biology, University of California at Berkeley, Berkeley, CA, USA. Duesberg@berkeley.edu
Carcinogenesis, the process of cancer development, may be a form of speciation. This theory suggests that cancer cells evolve into new species through chromosomal abnormalities (aneuploidy), leading to unique characteristics like immortality and autonomy.
Area of Science:
- Oncology
- Evolutionary Biology
- Genetics
Background:
- Cancers exhibit unique clonal karyotypes, immortality, and long latencies after carcinogen exposure.
- Carcinogenesis involves complex genetic alterations and the evolution of cellular autonomy.
Purpose of the Study:
- To propose and explore the speciation theory of carcinogenesis.
- To explain the fundamental characteristics of cancer through an evolutionary lens.
Main Methods:
- Theoretical framework based on evolutionary principles.
- Analysis of cancer characteristics such as karyotypic individuality, immortality, and latency.
- Comparison of cancer evolution with biological speciation.
Main Results:
- The speciation theory explains cancer's autonomy, individuality, flexibility, immortality, and long latencies.
- Aneuploidy (chromosomal imbalance) is proposed as the initiating event in carcinogenesis, driving karyotypic evolution.
- The theory resolves the paradox of aneuploidy being both a hallmark of cancer and detrimental to normal development.
Conclusions:
- Carcinogenesis can be viewed as a process of speciation, where cancer cells evolve into distinct entities.
- Aneuploidy, rather than a fatal flaw, is the engine for the evolution of new cancer species.
- This theory provides a unifying framework for understanding cancer biology and its evolutionary origins.
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