Nature Communications (Jun 2019)

DRP1-mediated mitochondrial shape controls calcium homeostasis and muscle mass

  • Giulia Favaro,
  • Vanina Romanello,
  • Tatiana Varanita,
  • Maria Andrea Desbats,
  • Valeria Morbidoni,
  • Caterina Tezze,
  • Mattia Albiero,
  • Marta Canato,
  • Gaia Gherardi,
  • Diego De Stefani,
  • Cristina Mammucari,
  • Bert Blaauw,
  • Simona Boncompagni,
  • Feliciano Protasi,
  • Carlo Reggiani,
  • Luca Scorrano,
  • Leonardo Salviati,
  • Marco Sandri

DOI
https://doi.org/10.1038/s41467-019-10226-9
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 17

Abstract

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Muscle loss is associated with altered expression of proteins involved in mitochondrial homeostasis, but whether this is causative remains unclear. Here, the authors show that genetic ablation of the pro-fission protein DRP1 leads to accumulation of abnormal mitochondria that induce muscle atrophy by altering Ca2+ homeostasis and cellular stress responses.