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- Title
Age-specific incidence data indicate four mutations are required for human testicular cancers.
- Authors
Brody, James P
- Abstract
Normal human cells require a series of genetic alterations to undergo malignant transformation. Direct sequencing of human tumors has identified hundreds of mutations in tumors, but many of these are thought to be unnecessary and a result of, rather than a cause of, the tumor. The exact number of mutations to transform a normal human cell into a tumor cell is unknown. Here I show that male gonadal germ cell tumors, the most common form of testicular cancers, occur after four mutations. I infer this by constructing a mathematical model based upon the multi-hit hypothesis and comparing it to the age-specific incidence data. This result is consistent with the multi-hit hypothesis, and implies that these cancers are genetically or epigenetically predetermined at birth or an early age.
- Publication
PloS one, 2011, Vol 6, Issue 10, pe25978
- ISSN
1932-6203
- Publication type
Journal Article
- DOI
10.1371/journal.pone.0025978