Skeletal muscle hypertrophy: cell growth is cell growth

Am J Physiol Cell Physiol. 2024 Sep 1;327(3):C614-C618. doi: 10.1152/ajpcell.00418.2024. Epub 2024 Jul 29.

Abstract

Roberts et al. have provided an insightful counterpoint to our review article on the utility of the synergist ablation model. The purpose of this review is to provide some further dialogue regarding the strengths and weaknesses of the synergist ablation model. Specifically, we highlight that the robustness of the model overshadows surgical limitations. We also compare the transcriptomic responses to synergist ablation in mice and resistance exercise in humans to identify common pathways. We conclude that "cell growth is cell growth" and that the mechanisms available to cells to accumulate biomass and increase in size are similar across cell types and independent of the rate of growth.

Keywords: hypertrophy; muscle; resistance training; synergist ablation.

Publication types

  • Review

MeSH terms

  • Animals
  • Cell Proliferation* / physiology
  • Humans
  • Hypertrophy*
  • Mice
  • Muscle, Skeletal* / growth & development
  • Muscle, Skeletal* / metabolism
  • Muscle, Skeletal* / pathology