Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.

Tricuspid Atresia (TA) is a rare form of congenital heart disease (CHD) with usually poor prognosis in humans. It presents as a complete absence of the right atrio-ventricular connection secured normally by the tricuspid valve. Defects in the tricuspid valve are so far not associated with any geneti...

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Main Authors: Zahi Abdul-Sater, Amin Yehya, Jean Beresian, Elie Salem, Amina Kamar, Serine Baydoun, Kamel Shibbani, Ayman Soubra, Fadi Bitar, Georges Nemer
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3511479?pdf=render
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author Zahi Abdul-Sater
Amin Yehya
Jean Beresian
Elie Salem
Amina Kamar
Serine Baydoun
Kamel Shibbani
Ayman Soubra
Fadi Bitar
Georges Nemer
author_facet Zahi Abdul-Sater
Amin Yehya
Jean Beresian
Elie Salem
Amina Kamar
Serine Baydoun
Kamel Shibbani
Ayman Soubra
Fadi Bitar
Georges Nemer
author_sort Zahi Abdul-Sater
collection DOAJ
description Tricuspid Atresia (TA) is a rare form of congenital heart disease (CHD) with usually poor prognosis in humans. It presents as a complete absence of the right atrio-ventricular connection secured normally by the tricuspid valve. Defects in the tricuspid valve are so far not associated with any genetic locus, although mutations in numerous genes were linked to multiple forms of congenital heart disease. In the last decade, Knock-out mice have offered models for cardiologists and geneticists to study the causes of congenital disease. One such model was the Nfatc1(-/-) mice embryos which die at mid-gestation stage due to a complete absence of the valves. NFATC1 belongs to the Rel family of transcription factors members of which were shown to be implicated in gene activation, cell differentiation, and organogenesis. We have previously shown that a tandem repeat in the intronic region of NFATC1 is associated with ventricular septal defects. In this report, we unravel for the first time a potential link between a mutation in NFATC1 and TA. Two heterozygous missense mutations were found in the NFATC1 gene in one indexed-case out of 19 patients with TA. The two amino-acids changes were not found neither in other patients with CHDs, nor in the control healthy population. Moreover, we showed that these mutations alter dramatically the normal function of the protein at the cellular localization, DNA binding and transcriptional levels suggesting they are disease-causing.
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spelling doaj.art-223a170940a54a5ba46d05d56fcc4c962022-12-22T01:33:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01711e4953210.1371/journal.pone.0049532Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.Zahi Abdul-SaterAmin YehyaJean BeresianElie SalemAmina KamarSerine BaydounKamel ShibbaniAyman SoubraFadi BitarGeorges NemerTricuspid Atresia (TA) is a rare form of congenital heart disease (CHD) with usually poor prognosis in humans. It presents as a complete absence of the right atrio-ventricular connection secured normally by the tricuspid valve. Defects in the tricuspid valve are so far not associated with any genetic locus, although mutations in numerous genes were linked to multiple forms of congenital heart disease. In the last decade, Knock-out mice have offered models for cardiologists and geneticists to study the causes of congenital disease. One such model was the Nfatc1(-/-) mice embryos which die at mid-gestation stage due to a complete absence of the valves. NFATC1 belongs to the Rel family of transcription factors members of which were shown to be implicated in gene activation, cell differentiation, and organogenesis. We have previously shown that a tandem repeat in the intronic region of NFATC1 is associated with ventricular septal defects. In this report, we unravel for the first time a potential link between a mutation in NFATC1 and TA. Two heterozygous missense mutations were found in the NFATC1 gene in one indexed-case out of 19 patients with TA. The two amino-acids changes were not found neither in other patients with CHDs, nor in the control healthy population. Moreover, we showed that these mutations alter dramatically the normal function of the protein at the cellular localization, DNA binding and transcriptional levels suggesting they are disease-causing.http://europepmc.org/articles/PMC3511479?pdf=render
spellingShingle Zahi Abdul-Sater
Amin Yehya
Jean Beresian
Elie Salem
Amina Kamar
Serine Baydoun
Kamel Shibbani
Ayman Soubra
Fadi Bitar
Georges Nemer
Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.
PLoS ONE
title Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.
title_full Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.
title_fullStr Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.
title_full_unstemmed Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.
title_short Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.
title_sort two heterozygous mutations in nfatc1 in a patient with tricuspid atresia
url http://europepmc.org/articles/PMC3511479?pdf=render
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