Desmoglein-2 and desmocollin-2 mutations in dutch arrhythmogenic right ventricular dysplasia/cardiomypathy patients: results from a multicenter study.

Details

Serval ID
serval:BIB_5967EF158028
Type
Article: article from journal or magazin.
Collection
Publications
Title
Desmoglein-2 and desmocollin-2 mutations in dutch arrhythmogenic right ventricular dysplasia/cardiomypathy patients: results from a multicenter study.
Journal
Circulation. Cardiovascular genetics
Author(s)
Bhuiyan Z.A., Jongbloed J.D., van der Smagt J., Lombardi P.M., Wiesfeld A.C., Nelen M., Schouten M., Jongbloed R., Cox M.G., van Wolferen M., Rodriguez L.M., van Gelder I.C., Bikker H., Suurmeijer A.J., van den Berg M.P., Mannens M.M., Hauer R.N., Wilde A.A., van Tintelen J.P.
ISSN
1942-3268 (Electronic)
ISSN-L
1942-3268
Publication state
Published
Issued date
10/2009
Peer-reviewed
Oui
Volume
2
Number
5
Pages
418-427
Language
english
Notes
Publication types: Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
This study aimed to evaluate the prevalence and type of mutations in the major desmosomal genes, Plakophilin-2 (PKP2), Desmoglein-2 (DSG2), and Desmocollin-2 (DSC2), in arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) patients. We also aimed to distinguish relevant clinical and ECG parameters.
Clinical evaluation was performed according to the Task Force Criteria (TFC). We analyzed the genes in (a) 57 patients who fulfilled the ARVD/C TFC (TFC+), (b) 28 patients with probable ARVD/C (1 major and 1 minor, or 3 minor criteria), and (c) 31 patients with 2 minor or 1 major criteria. In the TFC+ ARVD/C group, 23 patients (40%) had PKP2 mutations, 4 (7%) had DSG2 mutations, and 1 patient (2%) carried a mutation in DSC2, whereas 1 patient (2%) had a mutation in both DSG2 and DSC2. Among the DSG2 and DSC2 mutation-positive TFC+ ARVD/C probands, 2 carried compound heterozygous mutations and 1 had digenic mutations. In probable ARVD/C patients and those with 2 minor or 1 major criteria for ARVD/C, mutations were less frequent and they were all heterozygous. Negative T waves in the precordial leads were observed more (P<0.002) among mutation carriers than noncarriers and in particular in PKP2 mutation carriers.
Mutations in DSG2 and DSC2 are together less prevalent (10%) than PKP2 mutations (40%) in Dutch TFC+ ARVD/C patients. Interestingly, biallelic or digenic DSC2 and/or DSG2 mutations are frequently identified in TFC+ ARVD/C patients, suggesting that a single mutation is less likely to cause a full-blown ARVD/C phenotype. Negative T waves on ECG were prevalent among mutation carriers (P<0.002).

Keywords
Adolescent, Adult, Arrhythmogenic Right Ventricular Dysplasia/genetics, Arrhythmogenic Right Ventricular Dysplasia/metabolism, Cohort Studies, Desmocollins/genetics, Desmocollins/metabolism, Desmoglein 2/genetics, Desmoglein 2/metabolism, Desmosomes/genetics, Desmosomes/metabolism, Female, Heterozygote, Humans, Male, Middle Aged, Mutation, Netherlands, Pedigree, Plakophilins/genetics, Plakophilins/metabolism, Young Adult
Pubmed
Web of science
Open Access
Yes
Create date
01/03/2018 16:19
Last modification date
20/08/2019 15:12
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