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BMP Signaling and Its pSMAD1/5 Target Genes Differentially Regulate Hair Follicle Stem Cell Lineages

Open access
Genander, Maria, Cook, Peter J., Ramsköld, Daniel, Keyes, Brice E., Mertz, Aaron F., Sandberg, Rickard, Fuchs, Elaine·2014·Cell Stem Cell

Abstract

Hair follicle stem cells (HFSCs) and their transit amplifying cell (TAC) progeny sense BMPs at defined stages of the hair cycle to control their proliferation and differentiation. Here, we exploit the distinct spatial and temporal localizations of these cells to selectively ablate BMP signaling in each compartment and examine its functional role. We find that BMP signaling is required for HFSC quiescence and to promote TAC differentiation along different lineages as the hair cycle progresses. We also combine in vivo genome-wide chromatin immunoprecipitation and deep-sequencing, transcriptional profiling, and loss-of-function genetics to define BMP-regulated genes. We show that some pSMAD1/5 targets, like Gata3, function specifically in TAC lineage-progression. Others, like Id1 and Id3, function in both HFSCs and TACs, but in distinct ways. Our study therefore illustrates the complex differential roles that a key signaling pathway can play in regulation of closely-related stem/progenitor cells within the context of their overall niche.

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Metadata

Authors
Genander, M., Cook, P. J., Ramsköld, D., Keyes, B. E., Mertz, A. F., Sandberg, R., & Fuchs, E.
Venue
Cell Stem Cell
Publisher
Elsevier BV
Published
2014-11
Volume
15
Issue
5
Pages
619-633
ISSN
  • 1875-9777 (ISSN-L)
  • 1934-5909
OpenAlex
W2051418621
Cited by
173
References
5
FWCI
13.54
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: BMP Signaling and Its pSMAD1/5 Target Genes Differentially Regulate Hair Follicle Stem Cell Lineages. https://app.cochat.ai/papers/10.1016/j.stem.2014.09.009
The paper
Genander, M., Cook, P. J., Ramsköld, D., Keyes, B. E., Mertz, A. F., Sandberg, R., & Fuchs, E. (2014). BMP Signaling and Its pSMAD1/5 Target Genes Differentially Regulate Hair Follicle Stem Cell Lineages. Cell Stem Cell. https://doi.org/10.1016/j.stem.2014.09.009

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