Hippo pathway effectors YAP and TAZ and their association with skeletal muscle ageing

J Physiol Biochem. 2021 Feb;77(1):63-73. doi: 10.1007/s13105-021-00787-z. Epub 2021 Jan 26.

Abstract

Skeletal muscle atrophy commonly occurs during ageing, thus pathways that regulate muscle mass may represent a potential therapeutic avenue for interventions. In this review, we explored the Hippo signalling pathway which plays an essential role in human oncogenesis and the pathway's influence on myogenesis and satellite cell functions, on supporting cells such as fibroblasts, and autophagy. YAP/TAZ was found to regulate both myoblast proliferation and differentiation, albeit with unique roles. Additionally, YAP/TAZ has different functions depending on the expressing cell type, making simple inference of their effects difficult. Studies in cancers have shown that the Hippo pathway influenced the autophagy pathway, although with mixed results. Most of the present researches on YAP/TAZ are focused on its oncogenicity and further studies are needed to translate these findings to physiological ageing. Taken together, the modulation of YAP/TAZ or the Hippo pathway in general may offer potential new strategies for the prevention or treatment of ageing.

Keywords: Ageing; Cell signalling; Sarcopenia; Skeletal muscle; Yes-associated protein.

Publication types

  • Review

MeSH terms

  • Aging / metabolism*
  • Autophagy
  • Cell Cycle Proteins / physiology*
  • Cell Differentiation
  • Cell Proliferation
  • Humans
  • Intracellular Signaling Peptides and Proteins / physiology*
  • Muscle, Skeletal* / metabolism
  • Muscle, Skeletal* / pathology
  • Sarcopenia / metabolism*
  • Signal Transduction
  • Transcription Factors / physiology*
  • Transcriptional Coactivator with PDZ-Binding Motif Proteins

Substances

  • Cell Cycle Proteins
  • Intracellular Signaling Peptides and Proteins
  • Transcription Factors
  • Transcriptional Coactivator with PDZ-Binding Motif Proteins
  • WWTR1 protein, human
  • YY1AP1 protein, human