2026-06-14T03:46:18Zhttps://repisalud.isciii.es/rest/oai/requestoai:repisalud.isciii.es:20.500.12105/137292024-11-29T21:01:32Zcom_20.500.12105_2173com_20.500.12105_2051col_20.500.12105_19597
Repisalud
author
Park, Solip
author
Supek, Fran
author
Lehner, Ben
funder
Unión Europea. Comisión Europea. European Research Council (ERC)
funder
Ministerio de Ciencia e Innovación (España)
funder
Unión Europea. Comisión Europea
2022-03-07T09:47:53Z
2022-03-07T09:47:53Z
2021-12-03
Nat Commun . 2021;12(1):7051.
10.1038/s41467-021-27242-3
2041-1723
Nature communications
34862370
http://hdl.handle.net/20.500.12105/13729
The classic two-hit model posits that both alleles of a tumor suppressor gene (TSG) must be inactivated to cause cancer. In contrast, for some oncogenes and haploinsufficient TSGs, a single genetic alteration can suffice to increase tumor fitness. Here, by quantifying the interactions between mutations and copy number alterations (CNAs) across 10,000 tumors, we show that many cancer genes actually switch between acting as one-hit or two-hit drivers. Third order genetic interactions identify the causes of some of these switches in dominance and dosage sensitivity as mutations in other genes in the same biological pathway. The correct genetic model for a gene thus depends on the other mutations in a genome, with a second hit in the same gene or an alteration in a different gene in the same pathway sometimes representing alternative evolutionary paths to cancer.
eng
MUTATIONS
LANDSCAPE
PATHWAYS
PATTERNS
Higher order genetic interactions switch cancer genes from two-hit to one-hit drivers.
journal article
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