Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness

Aneuploidy results in decreased cellular fitness in many species and model systems. However, aneuploidy is commonly found in cancer cells and often correlates with aggressive growth, suggesting that the impact of aneuploidy on cellular fitness is context dependent. The BRG1 (SMARCA4) subunit of the...

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Main Authors: Federica Schiavoni, Pedro Zuazua-Villar, Theodoros I. Roumeliotis, Graeme Benstead-Hume, Mercedes Pardo, Frances M. G. Pearl, Jyoti S. Choudhary, Jessica A. Downs
Format: Article
Language:English
Published: Nature Portfolio 2022-04-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-022-29420-3
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author Federica Schiavoni
Pedro Zuazua-Villar
Theodoros I. Roumeliotis
Graeme Benstead-Hume
Mercedes Pardo
Frances M. G. Pearl
Jyoti S. Choudhary
Jessica A. Downs
author_facet Federica Schiavoni
Pedro Zuazua-Villar
Theodoros I. Roumeliotis
Graeme Benstead-Hume
Mercedes Pardo
Frances M. G. Pearl
Jyoti S. Choudhary
Jessica A. Downs
author_sort Federica Schiavoni
collection DOAJ
description Aneuploidy results in decreased cellular fitness in many species and model systems. However, aneuploidy is commonly found in cancer cells and often correlates with aggressive growth, suggesting that the impact of aneuploidy on cellular fitness is context dependent. The BRG1 (SMARCA4) subunit of the SWI/SNF chromatin remodelling complex is frequently lost in cancer. Here, the authors show that BRG1 loss can lead to changes that allow tolerance to aneuploidy. This creates a setting where karyotype changes can be explored without a fitness penalty, allowing adaptation to changing environments. This could play an important role in the progression of BRG1 deficient cancers.
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spelling doaj.art-6eaf790b03964eb082453da384012a472022-12-22T03:13:22ZengNature PortfolioNature Communications2041-17232022-04-0113111510.1038/s41467-022-29420-3Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitnessFederica Schiavoni0Pedro Zuazua-Villar1Theodoros I. Roumeliotis2Graeme Benstead-Hume3Mercedes Pardo4Frances M. G. Pearl5Jyoti S. Choudhary6Jessica A. Downs7Epigenetics and Genome Stability Team, The Institute of Cancer ResearchEpigenetics and Genome Stability Team, The Institute of Cancer ResearchFunctional Proteomics Team, The Institute of Cancer ResearchFunctional Proteomics Team, The Institute of Cancer ResearchFunctional Proteomics Team, The Institute of Cancer ResearchBioinformatics Group, School of Life Sciences, University of SussexFunctional Proteomics Team, The Institute of Cancer ResearchEpigenetics and Genome Stability Team, The Institute of Cancer ResearchAneuploidy results in decreased cellular fitness in many species and model systems. However, aneuploidy is commonly found in cancer cells and often correlates with aggressive growth, suggesting that the impact of aneuploidy on cellular fitness is context dependent. The BRG1 (SMARCA4) subunit of the SWI/SNF chromatin remodelling complex is frequently lost in cancer. Here, the authors show that BRG1 loss can lead to changes that allow tolerance to aneuploidy. This creates a setting where karyotype changes can be explored without a fitness penalty, allowing adaptation to changing environments. This could play an important role in the progression of BRG1 deficient cancers.https://doi.org/10.1038/s41467-022-29420-3
spellingShingle Federica Schiavoni
Pedro Zuazua-Villar
Theodoros I. Roumeliotis
Graeme Benstead-Hume
Mercedes Pardo
Frances M. G. Pearl
Jyoti S. Choudhary
Jessica A. Downs
Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness
Nature Communications
title Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness
title_full Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness
title_fullStr Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness
title_full_unstemmed Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness
title_short Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness
title_sort aneuploidy tolerance caused by brg1 loss allows chromosome gains and recovery of fitness
url https://doi.org/10.1038/s41467-022-29420-3
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