STAR Protocols (Jun 2022)

Detection of muscle stem cell-derived myonuclei in murine overloaded muscles

  • Akihiro Kaneshige,
  • Takayuki Kaji,
  • Hayato Saito,
  • Tatsuyoshi Higashimoto,
  • Ayasa Nakamura,
  • Tamaki Kurosawa,
  • Madoka Ikemoto-Uezumi,
  • Akiyoshi Uezumi,
  • So-ichiro Fukada

Journal volume & issue
Vol. 3, no. 2
p. 101307

Abstract

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Summary: Muscle satellite cells (MuSCs) supply nuclei to existing myofibers in response to mechanical loading. This myonuclear accretion is critical for efficient muscle hypertrophy. Herein, we present protocols for the detection of MuSC-derived new myonuclei in loaded mouse muscle, including procedures for EdU injection to stain myonuclei, followed by surgery and skeletal muscle fixation. We then describe immunostaining for EdU+ myonuclei and image acquisition for quantitative analyses.For complete details on the use and execution of this protocol, please refer to Kaneshige et al. (2022).

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