A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preference

Copy number alterations (CNAs) in cancer patients show a large variability in their number, length and position, but the sources of this variability are not known. CNA number and length are linked to patient survival, suggesting clinical relevance. We have identified genes that tend to be mutated in...

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Main Authors: Dina Cramer, Luis Serrano, Martin H Schaefer
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2016-11-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/16519
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author Dina Cramer
Luis Serrano
Martin H Schaefer
author_facet Dina Cramer
Luis Serrano
Martin H Schaefer
author_sort Dina Cramer
collection DOAJ
description Copy number alterations (CNAs) in cancer patients show a large variability in their number, length and position, but the sources of this variability are not known. CNA number and length are linked to patient survival, suggesting clinical relevance. We have identified genes that tend to be mutated in samples that have few or many CNAs, which we term CONIM genes (COpy Number Instability Modulators). CONIM proteins cluster into a densely connected subnetwork of physical interactions and many of them are epigenetic modifiers. Therefore, we investigated how the epigenome of the tissue-of-origin influences the position of CNA breakpoints and the properties of the resulting CNAs. We found that the presence of heterochromatin in the tissue-of-origin contributes to the recurrence and length of CNAs in the respective cancer type.
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spelling doaj.art-8b33e334a5fe48889ba953d661d83f4a2022-12-22T03:52:36ZengeLife Sciences Publications LtdeLife2050-084X2016-11-01510.7554/eLife.16519A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preferenceDina Cramer0Luis Serrano1Martin H Schaefer2https://orcid.org/0000-0001-7503-6364EMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, SpainEMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats, Barcelona, SpainEMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, SpainCopy number alterations (CNAs) in cancer patients show a large variability in their number, length and position, but the sources of this variability are not known. CNA number and length are linked to patient survival, suggesting clinical relevance. We have identified genes that tend to be mutated in samples that have few or many CNAs, which we term CONIM genes (COpy Number Instability Modulators). CONIM proteins cluster into a densely connected subnetwork of physical interactions and many of them are epigenetic modifiers. Therefore, we investigated how the epigenome of the tissue-of-origin influences the position of CNA breakpoints and the properties of the resulting CNAs. We found that the presence of heterochromatin in the tissue-of-origin contributes to the recurrence and length of CNAs in the respective cancer type.https://elifesciences.org/articles/16519cancer genomicscopy number alterationstissue-specificity of disease
spellingShingle Dina Cramer
Luis Serrano
Martin H Schaefer
A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preference
eLife
cancer genomics
copy number alterations
tissue-specificity of disease
title A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preference
title_full A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preference
title_fullStr A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preference
title_full_unstemmed A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preference
title_short A network of epigenetic modifiers and DNA repair genes controls tissue-specific copy number alteration preference
title_sort network of epigenetic modifiers and dna repair genes controls tissue specific copy number alteration preference
topic cancer genomics
copy number alterations
tissue-specificity of disease
url https://elifesciences.org/articles/16519
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