Nature Communications (May 2019)

The K219T-Lamin mutation induces conduction defects through epigenetic inhibition of SCN5A in human cardiac laminopathy

  • Nicolò Salvarani,
  • Silvia Crasto,
  • Michele Miragoli,
  • Alessandro Bertero,
  • Marianna Paulis,
  • Paolo Kunderfranco,
  • Simone Serio,
  • Alberto Forni,
  • Carla Lucarelli,
  • Matteo Dal Ferro,
  • Veronica Larcher,
  • Gianfranco Sinagra,
  • Paolo Vezzoni,
  • Charles E. Murry,
  • Giuseppe Faggian,
  • Gianluigi Condorelli,
  • Elisa Di Pasquale

DOI
https://doi.org/10.1038/s41467-019-09929-w
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 16

Abstract

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Mutation of LMNA, encoding Lamin A/C nuclear proteins, cause dilated cardiomyopathy and conduction disorders. Here, the authors show that patient-specific iPSC-derived CMs carrying the K219T LMNA mutation have downregulated Nav1.5 channels due to dynamic cooperation of Lamin A/C and Polycomb repressor complex 2 at the SCN5A promoter.