Novel GATA6 mutations in patients with pancreatic agenesis and congenital heart malformations.

Bibliographic Details
Title: Novel GATA6 mutations in patients with pancreatic agenesis and congenital heart malformations.
Authors: Christina S Chao, Kristen D McKnight, Kenneth L Cox, Anne L Chang, Seung K Kim, Brian J Feldman
Source: PLoS ONE, Vol 10, Iss 2, p e0118449 (2015)
Publisher Information: Public Library of Science (PLoS), 2015.
Publication Year: 2015
Collection: LCC:Medicine
LCC:Science
Subject Terms: Medicine, Science
More Details: Patients with pancreatic agenesis are born without a pancreas, causing permanent neonatal diabetes and pancreatic enzyme insufficiency. These patients require insulin and enzyme replacement therapy to survive, grow, and maintain normal blood glucose levels. Pancreatic agenesis is an uncommon condition but high-throughput sequencing methods provide a rare opportunity to identify critical genes that are necessary for human pancreas development. Here we present the clinical history, evaluation, and the genetic and molecular analysis from two patients with pancreatic agenesis. Both patients were born with intrauterine growth restriction, minor heart defects and neonatal diabetes. In both cases, pancreatic agenesis was confirmed by imaging studies. The patients are clinically stable with pancreatic enzymes and insulin therapy. In order identify the etiology for their disease, we performed whole exome sequencing on both patients. For each proband we identified a de novo heterozygous mutation in the GATA6 gene. GATA6 is a homeobox containing transcription factor involved in both early development of the pancreas and heart. In vitro functional analysis of one of the variants revealed that the mutation creates a premature stop codon in the coding sequence resulting in the production of a truncated protein with loss of activity. These results show how genetic mutations in GATA6 may lead to functional inactivity and pancreatic agenesis in humans.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1932-6203
Relation: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0118449&type=printable; https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0118449&type=printable
DOI: 10.1371/journal.pone.0118449
Access URL: https://doaj.org/article/4cea7d86148a4d76857c4ae2e8ba05b2
Accession Number: edsdoj.4cea7d86148a4d76857c4ae2e8ba05b2
Database: Directory of Open Access Journals
More Details
ISSN:19326203
DOI:10.1371/journal.pone.0118449&type=printable
Published in:PLoS ONE
Language:English