The Notch signaling pathway in skeletal muscle health and disease

Dorianmarie Vargas-Franco, Raghav Kalra, Isabelle Draper, Christina A. Pacak, Atsushi Asakura, Peter B. Kang

Research output: Contribution to journalReview articlepeer-review

13 Scopus citations

Abstract

The Notch signaling pathway is a key regulator of skeletal muscle development and regeneration. Over the past decade, the discoveries of three new muscle disease genes have added a new dimension to the relationship between the Notch signaling pathway and skeletal muscle: MEGF10, POGLUT1, and JAG2. We review the clinical syndromes associated with pathogenic variants in each of these genes, known molecular and cellular functions of their protein products with a particular focus on the Notch signaling pathway, and potential novel therapeutic targets that may emerge from further investigations of these diseases. The phenotypes associated with two of these genes, POGLUT1 and JAG2, clearly fall within the realm of muscular dystrophy, whereas the third, MEGF10, is associated with a congenital myopathy/muscular dystrophy overlap syndrome classically known as early-onset myopathy, areflexia, respiratory distress, and dysphagia. JAG2 is a canonical Notch ligand, POGLUT1 glycosylates the extracellular domain of Notch receptors, and MEGF10 interacts with the intracellular domain of NOTCH1. Additional genes and their encoded proteins relevant to muscle function and disease with links to the Notch signaling pathway include TRIM32, ATP2A1 (SERCA1), JAG1, PAX7, and NOTCH2NLC. There is enormous potential to identify convergent mechanisms of skeletal muscle disease and new therapeutic targets through further investigations of the Notch signaling pathway in the context of skeletal muscle development, maintenance, and disease.

Original languageEnglish (US)
Pages (from-to)530-544
Number of pages15
JournalMuscle and Nerve
Volume66
Issue number5
DOIs
StatePublished - Nov 2022

Bibliographical note

Funding Information:
Figures 1 through 6 were created with BioRender (biorender.com) under a paid academic subscription that includes a license to publish diagrams in journal publications.

Publisher Copyright:
© 2022 The Authors. Muscle & Nerve published by Wiley Periodicals LLC.

Keywords

  • JAG2
  • MEGF10
  • muscular dystrophy
  • Notch signaling pathway
  • POGLUT1

PubMed: MeSH publication types

  • Journal Article
  • Review

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