SCN5A nonsense mutation and NF1 frameshift mutation in a family with brugada syndrome and neurofibromatosis

Emanuele Micaglio, Michelle M. Monasky, Giuseppe Ciconte, Gabriele Vicedomini, Manuel Conti, Valerio Mecarocci, Luigi Giannelli, Federica Giordano, Alberto Pollina, Massimo Saviano, Simonetta Crisà, Valeria Borrelli, Andrea Ghiroldi, Sara D’Imperio, Chiara Di Resta, Sara Benedetti, Maurizio Ferrari, Vincenzo Santinelli, Luigi Anastasia, Carlo Pappone

Research output: Contribution to journalArticle

Abstract

In this case series, we report for the first time a family in which the inherited nonsense mutation [c. 3946C > T (p.Arg1316*)] in the SCN5A gene segregates in association with Brugada syndrome (BrS). Moreover, we also report, for the first time, the frameshift mutation [c.7686delG (p.Ile2563fsX40)] in the NF1 gene, as well as its association with type 1 neurofibromatosis (NF1), characterized by pigmentary lesions (café au lait spots, Lisch nodules, freckling) and cutaneous neurofibromas. Both of these mutations and associated phenotypes were discovered in the same family. This genetic association may identify a subset of patients at higher risk of sudden cardiac death who require the appropriate electrophysiological evaluation. This case series highlights the importance of genetic testing not only to molecularly confirm the pathology but also to identify asymptomatic family members who need clinical examinations and preventive interventions, as well as to advise about the possibility of avoiding recurrence risk with medically assisted reproduction.

Original languageEnglish
Article number50
JournalFrontiers in Genetics
Volume10
DOIs
Publication statusPublished - Feb 2019

Keywords

  • Arrhythmia
  • Brugada syndrome
  • Genetic testing
  • Mutation
  • Neurofibromatosis type 1
  • NF1
  • SCN5A
  • Sudden cardiac death

ASJC Scopus subject areas

  • Molecular Medicine
  • Genetics
  • Genetics(clinical)

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