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A Novel Stop-gain Pathogenic Variant in FLT4 and a Nonsynonymous Pathogenic Variant in PTPN11 Associated with Congenital Heart Defects

Overview
Journal Eur J Med Res
Publisher Biomed Central
Specialty General Medicine
Date 2022 Dec 10
PMID 36496429
Authors
Affiliations
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Abstract

Background: Congenital heart defects (CHDs) are the most common congenital malformations, including structural malformations in the heart and great vessels. CHD complications such as low birth weight, prematurity, pregnancy termination, mortality, and morbidity depend on the type of defect.

Methods: In the present research, genetic analyses via whole-exome sequencing (WES) was performed on 3 unrelated pedigrees with CHDs. The candidate variants were confirmed, segregated by PCR-based Sanger sequencing, and evaluated by bioinformatics analysis.

Results: A novel stop-gain c.C244T:p.R82X variant in the FLT4 gene, as well as a nonsynonymous c.C1403T:p.T468M variant in the PTPN11 gene, was reported by WES. FLT4 encodes a receptor tyrosine kinase involved in lymphatic development and is known as vascular endothelial growth factor 3.

Conclusions: We are the first to report a novel c.C244T variant in the FLT4 gene associated with CHDs. Using WES, we also identified a nonsynonymous variant affecting protein-tyrosine phosphatase, the non-receptor type 11 (PTPN11) gene. The clinical implementation of WES can determine gene variants in diseases with high genetic and phenotypic heterogeneity like CHDs.

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References
1.
Monaghan R, Page D, Ostergaard P, Keavney B . The physiological and pathological functions of VEGFR3 in cardiac and lymphatic development and related diseases. Cardiovasc Res. 2020; 117(8):1877-1890. PMC: 8262640. DOI: 10.1093/cvr/cvaa291. View

2.
Diab N, Barish S, Dong W, Zhao S, Allington G, Yu X . Molecular Genetics and Complex Inheritance of Congenital Heart Disease. Genes (Basel). 2021; 12(7). PMC: 8307500. DOI: 10.3390/genes12071020. View

3.
Atik T, Aykut A, Hazan F, Onay H, Goksen D, Darcan S . Mutation Spectrum and Phenotypic Features in Noonan Syndrome with PTPN11 Mutations: Definition of Two Novel Mutations. Indian J Pediatr. 2016; 83(6):517-21. DOI: 10.1007/s12098-015-1998-6. View

4.
Ghalamkarpour A, Debauche C, Haan E, Van Regemorter N, Sznajer Y, Thomas D . Sporadic in utero generalized edema caused by mutations in the lymphangiogenic genes VEGFR3 and FOXC2. J Pediatr. 2009; 155(1):90-3. DOI: 10.1016/j.jpeds.2009.02.023. View

5.
Ezquieta B, Santome J, Carcavilla A, Guillen-Navarro E, Perez-Aytes A, Sanchez Del Pozo J . Alterations in RAS-MAPK genes in 200 Spanish patients with Noonan and other neuro-cardio-facio-cutaneous syndromes. Genotype and cardiopathy. Rev Esp Cardiol (Engl Ed). 2012; 65(5):447-55. DOI: 10.1016/j.recesp.2011.12.016. View