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- Title
Arrhythmogenic right ventricular cardiomyopathy type 1 (ARVD1): confirmation of locus assignment and mutation screening of four candidate genes.
- Authors
Rampazzo, Alessandra; Beffagna, Giorgia; Nava, Andrea; Occhi, Gianluca; Bauce, Barbara; Noiato, Massimo; Basso, Cristina; Frigo, Gianfranco; Thiene, Gaetano; Towbin, Jeffrey; Danieli, Gian Antonio
- Abstract
Arrhythmogenic right ventricular cardiomyopathy type 1 (ARVD1) is an autosomal dominant disorder characterised by progressive degeneration of right ventricular myocardium, arrhythmias and risk of sudden death. By linkage analysis, we previously mapped the involved gene to chromosome 14q24.3. In the present study we report on linkage analysis of one additional and unrelated family, which enabled to confirm previous locus assignment. Another family is reported, in which genetic and clinical data suggest linkage to the same locus. Direct sequencing of DNA from individuals belonging to established ARVD1 families failed to detect causative mutations in exonic sequences of four genes (POMT2, TGFβ3, KIAAA1036 and KIAA0759) expressed in the heart and which defects could possibly induce plasma membrane instability or apoptosis, key features of ARVD pathogenesis.
- Subjects
CARDIOMYOPATHIES; RIGHT heart ventricle; GENETIC mutation; GENETICS
- Publication
European Journal of Human Genetics, 2003, Vol 11, Issue 1, p69
- ISSN
1018-4813
- Publication type
Article
- DOI
10.1038/sj.ejhg.5200914