Nature Communications (Aug 2021)

A microRNA program regulates the balance between cardiomyocyte hyperplasia and hypertrophy and stimulates cardiac regeneration

  • Andrea Raso,
  • Ellen Dirkx,
  • Vasco Sampaio-Pinto,
  • Hamid el Azzouzi,
  • Ryan J. Cubero,
  • Daniel W. Sorensen,
  • Lara Ottaviani,
  • Servé Olieslagers,
  • Manon M. Huibers,
  • Roel de Weger,
  • Sailay Siddiqi,
  • Silvia Moimas,
  • Consuelo Torrini,
  • Lorena Zentillin,
  • Luca Braga,
  • Diana S. Nascimento,
  • Paula A. da Costa Martins,
  • Jop H. van Berlo,
  • Serena Zacchigna,
  • Mauro Giacca,
  • Leon J. De Windt

DOI
https://doi.org/10.1038/s41467-021-25211-4
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 14

Abstract

Read online

Myocardial regeneration and proliferation of heart muscle cells is limited to a short period after birth early postnatal life, after which heart muscle cells can only grow in size and not in number. Here, the authors identified that the expression level of an endogenous microRNA cluster in heart muscle promotes the passage of the proliferative state to adult heart growth, and modulating the expression of this cluster can stimulate heart regeneration after myocardial infarction.