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Annual Review of Cancer Biology

Volume 5, 2021

Mutant Allele Imbalance in Cancer

Abstract

The search for somatic mutations that drive the initiation and progression of human tumors has dominated recent cancer research. While much emphasis has been placed on characterizing the prevalence and function of driver mutations, comparatively less is known about their serial genetic evolution. Indeed, study of this phenomenon has largely focused on tumor-suppressor genes recessive at the cellular level or mechanisms of resistance in tumors with mutant oncogenes targeted by therapy. There is, however, a growing appreciation that despite a decades-old presumption of heterozygosity, changes in mutant oncogene zygosity are common and drive dosage and stoichiometry changes that lead to selective growth advantages. Here, we review the recent progress in understanding mutant allele imbalance and its implications for tumor biology, cancer evolution, and response to anticancer therapy.

Keyword(s): cancer, evolution, genomics, mutant allele, oncogene, selection, zygosity
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2021-03-04
2024-05-09
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/content/journals/10.1146/annurev-cancerbio-051320-124252
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Mutant Allele Imbalance in Cancer
Annual Review of Cancer Biology 5, 221 (2021); https://doi.org/10.1146/annurev-cancerbio-051320-124252
/content/journals/10.1146/annurev-cancerbio-051320-124252
/content/journals/10.1146/annurev-cancerbio-051320-124252
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