Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric Disorders

Background: Both whole exome sequencing and copy number variants sequencing were applied to identify the genetic cause of rare pediatric disorders. In our study, we aimed to investigate the diagnostic yield of parallel tests of trio whole exome sequencing and copy number variants sequencing and its...

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Main Authors: Xuyun Hu, Ruolan Guo, Jun Guo, Zhan Qi, Wei Li, Chanjuan Hao
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-06-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fgene.2020.00473/full
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language English
format Article
sources DOAJ
author Xuyun Hu
Xuyun Hu
Xuyun Hu
Ruolan Guo
Ruolan Guo
Ruolan Guo
Jun Guo
Jun Guo
Jun Guo
Zhan Qi
Zhan Qi
Zhan Qi
Wei Li
Wei Li
Wei Li
Chanjuan Hao
Chanjuan Hao
Chanjuan Hao
spellingShingle Xuyun Hu
Xuyun Hu
Xuyun Hu
Ruolan Guo
Ruolan Guo
Ruolan Guo
Jun Guo
Jun Guo
Jun Guo
Zhan Qi
Zhan Qi
Zhan Qi
Wei Li
Wei Li
Wei Li
Chanjuan Hao
Chanjuan Hao
Chanjuan Hao
Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric Disorders
Frontiers in Genetics
whole exome sequencing
copy number variants sequencing
pediatric disorders
cost-effective
clinical utility
author_facet Xuyun Hu
Xuyun Hu
Xuyun Hu
Ruolan Guo
Ruolan Guo
Ruolan Guo
Jun Guo
Jun Guo
Jun Guo
Zhan Qi
Zhan Qi
Zhan Qi
Wei Li
Wei Li
Wei Li
Chanjuan Hao
Chanjuan Hao
Chanjuan Hao
author_sort Xuyun Hu
title Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric Disorders
title_short Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric Disorders
title_full Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric Disorders
title_fullStr Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric Disorders
title_full_unstemmed Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric Disorders
title_sort parallel tests of whole exome sequencing and copy number variant sequencing increase the diagnosis yields of rare pediatric disorders
publisher Frontiers Media S.A.
series Frontiers in Genetics
issn 1664-8021
publishDate 2020-06-01
description Background: Both whole exome sequencing and copy number variants sequencing were applied to identify the genetic cause of rare pediatric disorders. In our study, we aimed to investigate the diagnostic yield of parallel tests of trio whole exome sequencing and copy number variants sequencing and its clinical utility.Methods: After collecting detailed clinical information, a total of 60 patients were referred to parallel tests of whole exome sequencing and copy number variants sequencing, which used shared initial libraries.Results: 26 pathogenic or likely pathogenic single nucleotide variants and 11 copy number variants were identified in 32 patients. 65.4% (17/26) of the SNVs were novel. The overall diagnosis rate was 53.3%. For the patients with positive results, 22 (36.7%) patients were diagnosed by whole exome sequencing and 10 (16.7%) patients were diagnosed by copy number variants sequencing. We also reviewed clinical impact on selected cases.Conclusion: We adopted an approach by performing parallel tests of trio whole exome sequencing and copy number variants sequencing with shared initial libraries. This strategy is relatively efficient and cost-effective for the diagnosis of rare pediatric disorders with high heterogeneity.
topic whole exome sequencing
copy number variants sequencing
pediatric disorders
cost-effective
clinical utility
url https://www.frontiersin.org/article/10.3389/fgene.2020.00473/full
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spelling doaj-1ed0b1ec718b4ac2a26afa3be9f800b32020-11-25T02:48:27ZengFrontiers Media S.A.Frontiers in Genetics1664-80212020-06-011110.3389/fgene.2020.00473527584Parallel Tests of Whole Exome Sequencing and Copy Number Variant Sequencing Increase the Diagnosis Yields of Rare Pediatric DisordersXuyun Hu0Xuyun Hu1Xuyun Hu2Ruolan Guo3Ruolan Guo4Ruolan Guo5Jun Guo6Jun Guo7Jun Guo8Zhan Qi9Zhan Qi10Zhan Qi11Wei Li12Wei Li13Wei Li14Chanjuan Hao15Chanjuan Hao16Chanjuan Hao17Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaMOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaHenan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, ChinaBeijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaMOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaHenan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, ChinaBeijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaMOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaHenan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, ChinaBeijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaMOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaHenan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, ChinaBeijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaMOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaHenan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, ChinaBeijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaMOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, ChinaHenan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, ChinaBackground: Both whole exome sequencing and copy number variants sequencing were applied to identify the genetic cause of rare pediatric disorders. In our study, we aimed to investigate the diagnostic yield of parallel tests of trio whole exome sequencing and copy number variants sequencing and its clinical utility.Methods: After collecting detailed clinical information, a total of 60 patients were referred to parallel tests of whole exome sequencing and copy number variants sequencing, which used shared initial libraries.Results: 26 pathogenic or likely pathogenic single nucleotide variants and 11 copy number variants were identified in 32 patients. 65.4% (17/26) of the SNVs were novel. The overall diagnosis rate was 53.3%. For the patients with positive results, 22 (36.7%) patients were diagnosed by whole exome sequencing and 10 (16.7%) patients were diagnosed by copy number variants sequencing. We also reviewed clinical impact on selected cases.Conclusion: We adopted an approach by performing parallel tests of trio whole exome sequencing and copy number variants sequencing with shared initial libraries. This strategy is relatively efficient and cost-effective for the diagnosis of rare pediatric disorders with high heterogeneity.https://www.frontiersin.org/article/10.3389/fgene.2020.00473/fullwhole exome sequencingcopy number variants sequencingpediatric disorderscost-effectiveclinical utility