Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic Fibrosis

Cystic fibrosis (CF) is one of the most common autosomal recessive disorders among Caucasians of Northern European descent but is uncommon in the Chinese population. Objectives. To elucidate the mutation in the novel compound heterozygous CFTR causing CF in Chinese family. Materials and Methods. Cli...

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Main Authors: Hongxia Shao, Jingna Hua, Qi Wu, Xiaoge Li, Ming Zhang, Herong Wang, Junping Wu, Long Xu, Yi Xie, Li Li, Huaiyong Chen
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Canadian Respiratory Journal
Online Access:http://dx.doi.org/10.1155/2020/6507583
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author Hongxia Shao
Jingna Hua
Qi Wu
Xiaoge Li
Ming Zhang
Herong Wang
Junping Wu
Long Xu
Yi Xie
Li Li
Huaiyong Chen
author_facet Hongxia Shao
Jingna Hua
Qi Wu
Xiaoge Li
Ming Zhang
Herong Wang
Junping Wu
Long Xu
Yi Xie
Li Li
Huaiyong Chen
author_sort Hongxia Shao
collection DOAJ
description Cystic fibrosis (CF) is one of the most common autosomal recessive disorders among Caucasians of Northern European descent but is uncommon in the Chinese population. Objectives. To elucidate the mutation in the novel compound heterozygous CFTR causing CF in Chinese family. Materials and Methods. Clinical samples were obtained from a Chinese family, the brother and sister with recurrent airway infections, hypoxemia and obstructive ventilatory impairment, sinusitis, clubbed fingers, salty sweat, and nasal polyposis. We performed whole-exome sequencing on the family and validated all potential variants by Sanger sequencing. Results. Next-generation sequencing showed a novel compound heterozygous CFTR mutation (c.400 A > G p.Arg134Gly and c.3484 C > T p.Arg1162∗) which resulted in CF in the family. Conclusions. As this mutation is consistent with the observed clinical manifestations of CF and no other mutations were detected after scanning the gene sequence, we suggest that their CF phenotypes are caused by the compound heterozygous mutation, c.400 A > G p.Arg134Gly and c.3484 C > T p.Arg1162∗. As c.400 A > G is not currently listed in the Cystic Fibrosis Mutation Database, this information, regarding the CF-causing mutations in two Chinese patients, is of interest.
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issn 1198-2241
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publishDate 2020-01-01
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series Canadian Respiratory Journal
spelling doaj-art-2c9d44f8479644df882cfbd3fb60d3422025-02-03T00:59:41ZengWileyCanadian Respiratory Journal1198-22411916-72452020-01-01202010.1155/2020/65075836507583Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic FibrosisHongxia Shao0Jingna Hua1Qi Wu2Xiaoge Li3Ming Zhang4Herong Wang5Junping Wu6Long Xu7Yi Xie8Li Li9Huaiyong Chen10Department of Respiratory Medicine, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaDepartment of Respiratory Medicine, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaDepartment of Respiratory Medicine, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaTianjin Jinnan Xiaozhan Hospital, Tianjin 300353, ChinaDepartment of Medical Ultrasonics, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaDepartment of Respiratory Medicine, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaTianjin Institute of Respiratory Diseases, Tianjin 300350, ChinaDepartment of Science and Education, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaDepartment of Science and Education, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaDepartment of Respiratory Medicine, Haihe Hospital, Tianjin University, Tianjin 300350, ChinaTianjin Institute of Respiratory Diseases, Tianjin 300350, ChinaCystic fibrosis (CF) is one of the most common autosomal recessive disorders among Caucasians of Northern European descent but is uncommon in the Chinese population. Objectives. To elucidate the mutation in the novel compound heterozygous CFTR causing CF in Chinese family. Materials and Methods. Clinical samples were obtained from a Chinese family, the brother and sister with recurrent airway infections, hypoxemia and obstructive ventilatory impairment, sinusitis, clubbed fingers, salty sweat, and nasal polyposis. We performed whole-exome sequencing on the family and validated all potential variants by Sanger sequencing. Results. Next-generation sequencing showed a novel compound heterozygous CFTR mutation (c.400 A > G p.Arg134Gly and c.3484 C > T p.Arg1162∗) which resulted in CF in the family. Conclusions. As this mutation is consistent with the observed clinical manifestations of CF and no other mutations were detected after scanning the gene sequence, we suggest that their CF phenotypes are caused by the compound heterozygous mutation, c.400 A > G p.Arg134Gly and c.3484 C > T p.Arg1162∗. As c.400 A > G is not currently listed in the Cystic Fibrosis Mutation Database, this information, regarding the CF-causing mutations in two Chinese patients, is of interest.http://dx.doi.org/10.1155/2020/6507583
spellingShingle Hongxia Shao
Jingna Hua
Qi Wu
Xiaoge Li
Ming Zhang
Herong Wang
Junping Wu
Long Xu
Yi Xie
Li Li
Huaiyong Chen
Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic Fibrosis
Canadian Respiratory Journal
title Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic Fibrosis
title_full Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic Fibrosis
title_fullStr Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic Fibrosis
title_full_unstemmed Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic Fibrosis
title_short Identification of a Mutation in the Novel Compound Heterozygous CFTR in a Chinese Family with Cystic Fibrosis
title_sort identification of a mutation in the novel compound heterozygous cftr in a chinese family with cystic fibrosis
url http://dx.doi.org/10.1155/2020/6507583
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