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Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report

BACKGROUND: Townes–Brocks syndrome (TBS) is a rare autosomal dominant syndrome that is characterized by a triad of imperforate anus, dysplastic ears, and thumb malformations. Heterozygous variants of SALL1 are responsible for this syndrome. Renal structural abnormalities and functional impairments a...

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Autores principales: Wu, Jing, Zhang, Jun, Xiao, Tang-Li, He, Ting
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Baishideng Publishing Group Inc 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10450384/
https://www.ncbi.nlm.nih.gov/pubmed/37637690
http://dx.doi.org/10.12998/wjcc.v11.i23.5567
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author Wu, Jing
Zhang, Jun
Xiao, Tang-Li
He, Ting
author_facet Wu, Jing
Zhang, Jun
Xiao, Tang-Li
He, Ting
author_sort Wu, Jing
collection PubMed
description BACKGROUND: Townes–Brocks syndrome (TBS) is a rare autosomal dominant syndrome that is characterized by a triad of imperforate anus, dysplastic ears, and thumb malformations. Heterozygous variants of SALL1 are responsible for this syndrome. Renal structural abnormalities and functional impairments are often reported in TBS patients. CASE SUMMARY: We report a case of TBS in a Chinese family. The index patients showed obvious renal atrophy and renal failure. TBS was suggested after a physical examination and pedigree analysis. Whole exome sequencing revealed a heterozygous variant of SALL1. The variant (NM_001127892 c.1289_c.1290 insC) led to a read-frame shift of the encoded protein, which was confirmed by Sanger sequencing. The variant cosegregated with the phenotype among affected members. CONCLUSION: A novel variant in SALL1 gene may be the molecular pathogenic basis of this disorder.
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spelling pubmed-104503842023-08-26 Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report Wu, Jing Zhang, Jun Xiao, Tang-Li He, Ting World J Clin Cases Case Report BACKGROUND: Townes–Brocks syndrome (TBS) is a rare autosomal dominant syndrome that is characterized by a triad of imperforate anus, dysplastic ears, and thumb malformations. Heterozygous variants of SALL1 are responsible for this syndrome. Renal structural abnormalities and functional impairments are often reported in TBS patients. CASE SUMMARY: We report a case of TBS in a Chinese family. The index patients showed obvious renal atrophy and renal failure. TBS was suggested after a physical examination and pedigree analysis. Whole exome sequencing revealed a heterozygous variant of SALL1. The variant (NM_001127892 c.1289_c.1290 insC) led to a read-frame shift of the encoded protein, which was confirmed by Sanger sequencing. The variant cosegregated with the phenotype among affected members. CONCLUSION: A novel variant in SALL1 gene may be the molecular pathogenic basis of this disorder. Baishideng Publishing Group Inc 2023-08-16 2023-08-16 /pmc/articles/PMC10450384/ /pubmed/37637690 http://dx.doi.org/10.12998/wjcc.v11.i23.5567 Text en ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved. https://creativecommons.org/licenses/by-nc/4.0/This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.
spellingShingle Case Report
Wu, Jing
Zhang, Jun
Xiao, Tang-Li
He, Ting
Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report
title Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report
title_full Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report
title_fullStr Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report
title_full_unstemmed Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report
title_short Townes–Brocks syndrome with adult renal impairment in a Chinese family: A case report
title_sort townes–brocks syndrome with adult renal impairment in a chinese family: a case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10450384/
https://www.ncbi.nlm.nih.gov/pubmed/37637690
http://dx.doi.org/10.12998/wjcc.v11.i23.5567
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