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Cited by 301

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Reciprocal signalling by Notch–Collagen V–CALCR retains muscle stem cells in their niche

Open access
Baghdadi, Meryem B., Castel, David, Machado, Léo, Fukada, So-ichiro, Birk, David E., Relaix, Frederic, Tajbakhsh, Shahragim, Mourikis, Philippos·2018·Nature

Abstract

The cell microenvironment, which is critical for stem cell maintenance, contains both cellular and non-cellular components, including secreted growth factors and the extracellular matrix1–3. Although Notch and other signalling pathways have previously been reported to regulate quiescence of stem cells4–9, the composition and source of molecules that maintain the stem cell niche remain largely unknown. Here we show that adult muscle satellite (stem) cells in mice produce extracellular matrix collagens to maintain quiescence in a cell-autonomous manner. Using chromatin immunoprecipitation followed by sequencing, we identified NOTCH1/RBPJ-bound regulatory elements adjacent to specific collagen genes, the expression of which is deregulated in Notch-mutant mice. Moreover, we show that Collagen V (COLV) produced by satellite cells is a critical component of the quiescent niche, as depletion of COLV by conditional deletion of the Col5a1 gene leads to anomalous cell cycle entry and gradual diminution of the stem cell pool. Notably, the interaction of COLV with satellite cells is mediated by the Calcitonin receptor, for which COLV acts as a surrogate local ligand. Systemic administration of a calcitonin derivative is sufficient to rescue the quiescence and self-renewal defects found in COLV-null satellite cells. This study reveals a Notch–COLV–Calcitonin receptor signalling cascade that maintains satellite cells in a quiescent state in a cell-autonomous fashion, and raises the possibility that similar reciprocal mechanisms act in diverse stem cell populations. Muscle stem cell quiescence in mice is maintained by a Notch–Collagen V–CALCR signalling pathway that is activated and sustained in a cell-autonomous fashion.

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Metadata

Authors
Baghdadi, M. B., Castel, D., Machado, L., Fukada, S.-I., Birk, D. E., Relaix, F., Tajbakhsh, S., & Mourikis, P.
Venue
Nature
Published
2018-05-23
Volume
557
Issue
7707
Pages
714-718
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2804731235
Cited by
301
References
13
FWCI
10.20
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Reciprocal signalling by Notch–Collagen V–CALCR retains muscle stem cells in their niche. https://app.cochat.ai/papers/10.1038/s41586-018-0144-9
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Baghdadi, M. B., Castel, D., Machado, L., Fukada, S.-I., Birk, D. E., Relaix, F., Tajbakhsh, S., & Mourikis, P. (2018). Reciprocal signalling by Notch–Collagen V–CALCR retains muscle stem cells in their niche. Nature. https://doi.org/10.1038/s41586-018-0144-9

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