Clonality and evolutionary history of rhabdomyosarcoma.

To infer the subclonality of rhabdomyosarcoma (RMS) and predict the temporal order of genetic events for the tumorigenic process, and to identify novel drivers, we applied a systematic method that takes into account germline and somatic alterations in 44 tumor-normal RMS pairs using deep whole-genom...

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Main Authors: Li Chen, Jack F Shern, Jun S Wei, Marielle E Yohe, Young K Song, Laura Hurd, Hongling Liao, Daniel Catchpoole, Stephen X Skapek, Frederic G Barr, Douglas S Hawkins, Javed Khan
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-03-01
Series:PLoS Genetics
Online Access:http://europepmc.org/articles/PMC4358975?pdf=render
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author Li Chen
Jack F Shern
Jun S Wei
Marielle E Yohe
Young K Song
Laura Hurd
Hongling Liao
Daniel Catchpoole
Stephen X Skapek
Frederic G Barr
Douglas S Hawkins
Javed Khan
author_facet Li Chen
Jack F Shern
Jun S Wei
Marielle E Yohe
Young K Song
Laura Hurd
Hongling Liao
Daniel Catchpoole
Stephen X Skapek
Frederic G Barr
Douglas S Hawkins
Javed Khan
author_sort Li Chen
collection DOAJ
description To infer the subclonality of rhabdomyosarcoma (RMS) and predict the temporal order of genetic events for the tumorigenic process, and to identify novel drivers, we applied a systematic method that takes into account germline and somatic alterations in 44 tumor-normal RMS pairs using deep whole-genome sequencing. Intriguingly, we find that loss of heterozygosity of 11p15.5 and mutations in RAS pathway genes occur early in the evolutionary history of the PAX-fusion-negative-RMS (PFN-RMS) subtype. We discover several early mutations in non-RAS mutated samples and predict them to be drivers in PFN-RMS including recurrent mutation of PKN1. In contrast, we find that PAX-fusion-positive (PFP) subtype tumors have undergone whole-genome duplication in the late stage of cancer evolutionary history and have acquired fewer mutations and subclones than PFN-RMS. Moreover we predict that the PAX3-FOXO1 fusion event occurs earlier than the whole genome duplication. Our findings provide information critical to the understanding of tumorigenesis of RMS.
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spelling doaj.art-df4d2ffc7ee84072a7cc3f1788b039bb2022-12-21T23:51:21ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042015-03-01113e100507510.1371/journal.pgen.1005075Clonality and evolutionary history of rhabdomyosarcoma.Li ChenJack F ShernJun S WeiMarielle E YoheYoung K SongLaura HurdHongling LiaoDaniel CatchpooleStephen X SkapekFrederic G BarrDouglas S HawkinsJaved KhanTo infer the subclonality of rhabdomyosarcoma (RMS) and predict the temporal order of genetic events for the tumorigenic process, and to identify novel drivers, we applied a systematic method that takes into account germline and somatic alterations in 44 tumor-normal RMS pairs using deep whole-genome sequencing. Intriguingly, we find that loss of heterozygosity of 11p15.5 and mutations in RAS pathway genes occur early in the evolutionary history of the PAX-fusion-negative-RMS (PFN-RMS) subtype. We discover several early mutations in non-RAS mutated samples and predict them to be drivers in PFN-RMS including recurrent mutation of PKN1. In contrast, we find that PAX-fusion-positive (PFP) subtype tumors have undergone whole-genome duplication in the late stage of cancer evolutionary history and have acquired fewer mutations and subclones than PFN-RMS. Moreover we predict that the PAX3-FOXO1 fusion event occurs earlier than the whole genome duplication. Our findings provide information critical to the understanding of tumorigenesis of RMS.http://europepmc.org/articles/PMC4358975?pdf=render
spellingShingle Li Chen
Jack F Shern
Jun S Wei
Marielle E Yohe
Young K Song
Laura Hurd
Hongling Liao
Daniel Catchpoole
Stephen X Skapek
Frederic G Barr
Douglas S Hawkins
Javed Khan
Clonality and evolutionary history of rhabdomyosarcoma.
PLoS Genetics
title Clonality and evolutionary history of rhabdomyosarcoma.
title_full Clonality and evolutionary history of rhabdomyosarcoma.
title_fullStr Clonality and evolutionary history of rhabdomyosarcoma.
title_full_unstemmed Clonality and evolutionary history of rhabdomyosarcoma.
title_short Clonality and evolutionary history of rhabdomyosarcoma.
title_sort clonality and evolutionary history of rhabdomyosarcoma
url http://europepmc.org/articles/PMC4358975?pdf=render
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