Scientific Reports (Apr 2024)

HOIL-1L deficiency induces cell cycle alteration which causes immaturity of skeletal muscle and cardiomyocytes

  • Kentaro Akagi,
  • Shiro Baba,
  • Hiroaki Fujita,
  • Yasuhiro Fuseya,
  • Daisuke Yoshinaga,
  • Hirohito Kubota,
  • Eitaro Kume,
  • Fumiaki Fukumura,
  • Koichi Matsuda,
  • Takayuki Tanaka,
  • Takuya Hirata,
  • Megumu K. Saito,
  • Kazuhiro Iwai,
  • Junko Takita

DOI
https://doi.org/10.1038/s41598-024-57504-1
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 12

Abstract

Read online

Abstract HOIL-1L deficiency was recently reported to be one of the causes of myopathy and dilated cardiomyopathy (DCM). However, the mechanisms by which myopathy and DCM develop have not been clearly elucidated. Here, we sought to elucidate these mechanisms using the murine myoblast cell line C2C12 and disease-specific human induced pluripotent stem cells (hiPSCs). Myotubes differentiated from HOIL-1L-KO C2C12 cells exhibited deteriorated differentiation and mitotic cell accumulation. CMs differentiated from patient-derived hiPSCs had an abnormal morphology with a larger size and were excessively multinucleated compared with CMs differentiated from control hiPSCs. Further analysis of hiPSC-derived CMs showed that HOIL-1L deficiency caused cell cycle alteration and mitotic cell accumulation. These results demonstrate that abnormal cell maturation possibly contribute to the development of myopathy and DCM. In conclusion, HOIL-1L is an important intrinsic regulator of cell cycle-related myotube and CM maturation and cell proliferation.