Cited by 171Muscle Physiology and DisordersHippo pathway signaling and YAP/TAZCongenital heart defects research

Wnt4 from the Niche Controls the Mechano-Properties and Quiescent State of Muscle Stem Cells

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Eliazer, Susan, Muncie, Jonathon M., Christensen, Josef, Sun, Xuefeng, D’Urso, Rebecca S., Weaver, Valerie M., Brack, Andrew S.·2019·Cell Stem Cell

Abstract

Satellite cells (SCs) reside in a dormant state during tissue homeostasis. The specific paracrine agents and niche cells that maintain SC quiescence remain unknown. We find that Wnt4 produced by the muscle fiber maintains SC quiescence through RhoA. Using cell-specific inducible genetics, we find that a Wnt4-Rho signaling axis constrains SC numbers and activation during tissue homeostasis in adult mice. Wnt4 activates Rho in quiescent SCs to maintain mechanical strain, restrict movement in the niche, and repress YAP. The induction of YAP upon disruption of RhoA is essential for SC activation under homeostasis. In the context of injury, the loss of Wnt4 from the niche accelerates SC activation and muscle repair, whereas overexpression of Wnt4 transitions SCs into a deeper state of quiescence and delays muscle repair. In conclusion, the SC pool undergoes dynamic transitions during early activation with changes in mechano-properties and cytoskeleton signaling preceding cell-cycle entry.

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Crossref · 10.1016/j.stem.2019.08.007

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  1. Lacour F, Vezin E, Bentzinger CF, Sincennes MC, Giordani L, Ferry A, Mitchell R, Patel K, Rudnicki MA, Chaboissier MC, (2017b). R-spondin1 Controls Muscle Cell Fusion through Dual Regulation of Antagonistic Wnt Signaling Pathways. Cell reports 18, 2320– 2330. 28273449 PMC5357729
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Authors
Eliazer, S., Muncie, J. M., Christensen, J., Sun, X., D’Urso, R. S., Weaver, V. M., & Brack, A. S.
Affiliations
  • University of California, San Francisco (US)
  • Massachusetts General Hospital (US)
Corresponding author
Brack, Andrew S.
Venue
Cell Stem Cell
Publisher
Elsevier BV
Published
2019-11
Volume
25
Issue
5
Pages
654-665.e4
ISSN
  • 1875-9777 (ISSN-L)
  • 1934-5909
OpenAlex
W2971702444
Cited by
171
References
73
Citations by year
2026: 18 · 2025: 23 · 2024: 27 · 2023: 32 · 2022: 22 · 2021: 24 · 2020: 21 · 2019: 3 · 2013: 1
FWCI
5.79
Type
journal article
Language
en
Open access
Locations
  • Cell stem cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Congenital heart defects research
Keywords
Wnt4, satellite cells, muscle stem cells, quiescence, RhoA, YAP, mechanical strain, cytoskeleton signaling, muscle repair, cell cycle entry, tissue homeostasis, paracrine signaling
MeSH terms
YAP-Signaling Proteins, Animals, Cytoskeleton, Mice, Inbred C57BL, Mice, Transgenic, Regeneration, Signal Transduction, Muscle, Skeletal, Muscle Fibers, Skeletal, Microscopy, Atomic Force, Cell Cycle Proteins, Oligonucleotide Array Sequence Analysis, rhoA GTP-Binding Protein, Satellite Cells, Skeletal Muscle, Adaptor Proteins, Signal Transducing, Cell Proliferation, Mice, Stem Cell Niche, Wnt4 Protein

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