Unscrambling cancer genomes via integrated analysis of structural variation and copy number

Summary: Complex somatic genomic rearrangements and copy number alterations are hallmarks of nearly all cancers. We have developed an algorithm, LINX, to aid interpretation of structural variant and copy number data derived from short-read, whole-genome sequencing. LINX classifies raw structural var...

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Main Authors: Charles Shale, Daniel L. Cameron, Jonathan Baber, Marie Wong, Mark J. Cowley, Anthony T. Papenfuss, Edwin Cuppen, Peter Priestley
Format: Article
Language:English
Published: Elsevier 2022-04-01
Series:Cell Genomics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666979X22000325
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author Charles Shale
Daniel L. Cameron
Jonathan Baber
Marie Wong
Mark J. Cowley
Anthony T. Papenfuss
Edwin Cuppen
Peter Priestley
author_facet Charles Shale
Daniel L. Cameron
Jonathan Baber
Marie Wong
Mark J. Cowley
Anthony T. Papenfuss
Edwin Cuppen
Peter Priestley
author_sort Charles Shale
collection DOAJ
description Summary: Complex somatic genomic rearrangements and copy number alterations are hallmarks of nearly all cancers. We have developed an algorithm, LINX, to aid interpretation of structural variant and copy number data derived from short-read, whole-genome sequencing. LINX classifies raw structural variant calls into distinct events and predicts their effect on the local structure of the derivative chromosome and the functional impact on affected genes. Visualizations facilitate further investigation of complex rearrangements. LINX allows insights into a diverse range of structural variation events and can reliably detect pathogenic rearrangements, including gene fusions, immunoglobulin enhancer rearrangements, intragenic deletions, and duplications. Uniquely, LINX also predicts chained fusions that we demonstrate account for 13% of clinically relevant oncogenic fusions. LINX also reports a class of inactivation events that we term homozygous disruptions that may be a driver mutation in up to 9% of tumors and may frequently affect PTEN, TP53, and RB1.
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spelling doaj.art-070cdb7599c142749c125eef2ee342db2022-12-22T00:12:12ZengElsevierCell Genomics2666-979X2022-04-0124100112Unscrambling cancer genomes via integrated analysis of structural variation and copy numberCharles Shale0Daniel L. Cameron1Jonathan Baber2Marie Wong3Mark J. Cowley4Anthony T. Papenfuss5Edwin Cuppen6Peter Priestley7Hartwig Medical Foundation Australia, Sydney, NSW, Australia; Hartwig Medical Foundation, Science Park 408, Amsterdam, the NetherlandsHartwig Medical Foundation Australia, Sydney, NSW, Australia; Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne, VIC, AustraliaHartwig Medical Foundation Australia, Sydney, NSW, Australia; Hartwig Medical Foundation, Science Park 408, Amsterdam, the NetherlandsChildren’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington, NSW, Australia; School of Women’s and Children’s Health, UNSW Sydney, Kensington, NSW, AustraliaChildren’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington, NSW, Australia; School of Women’s and Children’s Health, UNSW Sydney, Kensington, NSW, AustraliaBioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia; Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, AustraliaHartwig Medical Foundation, Science Park 408, Amsterdam, the Netherlands; Center for Molecular Medicine and Oncode Institute, University Medical Center Utrecht, Heidelberglaan 100, Utrecht, the NetherlandsHartwig Medical Foundation Australia, Sydney, NSW, Australia; Hartwig Medical Foundation, Science Park 408, Amsterdam, the Netherlands; Corresponding authorSummary: Complex somatic genomic rearrangements and copy number alterations are hallmarks of nearly all cancers. We have developed an algorithm, LINX, to aid interpretation of structural variant and copy number data derived from short-read, whole-genome sequencing. LINX classifies raw structural variant calls into distinct events and predicts their effect on the local structure of the derivative chromosome and the functional impact on affected genes. Visualizations facilitate further investigation of complex rearrangements. LINX allows insights into a diverse range of structural variation events and can reliably detect pathogenic rearrangements, including gene fusions, immunoglobulin enhancer rearrangements, intragenic deletions, and duplications. Uniquely, LINX also predicts chained fusions that we demonstrate account for 13% of clinically relevant oncogenic fusions. LINX also reports a class of inactivation events that we term homozygous disruptions that may be a driver mutation in up to 9% of tumors and may frequently affect PTEN, TP53, and RB1.http://www.sciencedirect.com/science/article/pii/S2666979X22000325cancer genomicsstructural variationgenomic rearrangementLINXhomozygous disruptiongene fusion
spellingShingle Charles Shale
Daniel L. Cameron
Jonathan Baber
Marie Wong
Mark J. Cowley
Anthony T. Papenfuss
Edwin Cuppen
Peter Priestley
Unscrambling cancer genomes via integrated analysis of structural variation and copy number
Cell Genomics
cancer genomics
structural variation
genomic rearrangement
LINX
homozygous disruption
gene fusion
title Unscrambling cancer genomes via integrated analysis of structural variation and copy number
title_full Unscrambling cancer genomes via integrated analysis of structural variation and copy number
title_fullStr Unscrambling cancer genomes via integrated analysis of structural variation and copy number
title_full_unstemmed Unscrambling cancer genomes via integrated analysis of structural variation and copy number
title_short Unscrambling cancer genomes via integrated analysis of structural variation and copy number
title_sort unscrambling cancer genomes via integrated analysis of structural variation and copy number
topic cancer genomics
structural variation
genomic rearrangement
LINX
homozygous disruption
gene fusion
url http://www.sciencedirect.com/science/article/pii/S2666979X22000325
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