Cited by 1,428Hair Growth and DisordersSkin and Cellular Biology ResearchHematopoietic Stem Cell Transplantation

Self-Renewal, Multipotency, and the Existence of Two Cell Populations within an Epithelial Stem Cell Niche

Open access
Blanpain, Cedric, Lowry, William E., Geoghegan, Andrea, Polak, Lisa, Fuchs, Elaine·2004·Cell

Abstract

In adult skin, each hair follicle contains a reservoir of stem cells (the bulge), which can be mobilized to regenerate the new follicle with each hair cycle and to reepithelialize epidermis during wound repair. Here we report new methods that permit their clonal analyses and engraftment and demonstrate the two defining features of stem cells, namely self-renewal and multipotency. We also show that, within the bulge, there are two distinct populations, one of which maintains basal lamina contact and temporally precedes the other, which is suprabasal and arises only after the start of the first postnatal hair cycle. This spatial distinction endows them with discrete transcriptional programs, but surprisingly, both populations are growth inhibited in the niche but can self-renew in vitro and make epidermis and hair when grafted. These findings suggest that the niche microenvironment imposes intrinsic "stemness" features without restricting the establishment of epithelial polarity and changes in gene expression.

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Crossref · 10.1016/j.cell.2004.08.012

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  • The common quiescent stem cell signature shows downregulation of genes involved in DNA replication and cell cycle progression.

    “the signature reveals the downregulation of genes that are involved in DNA replication and cell cycle progression.”

    From Molecular regulation of stem cell quiescence (2013) · cites this paper as [43]

  • Comparison of gene expression profiles of HSCs, MuSCs, and HFSCs reveals a common gene signature in quiescent stem cells.

    “a comparison of gene expression profiles of different types of quiescent stem cells, including HSCs45, MuSCs15 and HFSCs43, reveals a gene signature that is common to these quiescent stem cells (TABLE 1).”

    From Molecular regulation of stem cell quiescence (2013) · cites this paper as [43]

  • Cyclin A2, cyclin B1, cyclin E2, and survivin are downregulated in quiescent HSCs, MuSCs, and HFSCs.

    “Examples of genes that are downregulated in all three quiescent cell types (HSCs, MuSCs and HFSCs) include genes encoding cyclin A2, cyclin B1, cyclin E2 and survivin”

    From Molecular regulation of stem cell quiescence (2013) · cites this paper as [43]

  • CD34 is a cell membrane marker for hair follicle stem cells.

    “Label retaining cells (LRCs) were visualized by double immunostaining with antibodies against BrdU and CD34, a cell membrane marker for hair follicle stem cells28,29.”

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Authors
Blanpain, C., Lowry, W. E., Geoghegan, A., Polak, L., & Fuchs, E.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Fuchs, Elaine
Venue
Cell
Publisher
Elsevier BV
Published
2004-09
Volume
118
Issue
5
Pages
635-648
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2151011478
Cited by
1,428
References
37
Citations by year
2026: 16 · 2025: 28 · 2024: 43 · 2023: 43 · 2022: 50 · 2021: 47 · 2020: 56 · 2019: 55 · 2018: 46 · 2017: 68 · 2016: 60 · 2015: 62 · 2014: 85 · 2013: 84 · 2012: 97
FWCI
82.26
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
Funders
  • National Institutes of Health (2r01ar050452-21)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR050452, AR 31737, R01AR031737, R01-AR050452)
Topics
  • Health Sciences › Medicine › Urology › Hair Growth and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Skin and Cellular Biology Research
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
Keywords
hair follicle stem cells, bulge, stem cell niche, self-renewal, multipotency, clonal analysis, engraftment, wound healing, transcriptional programs, epithelial polarity, stemness
MeSH terms
Epidermal Cells, Animals, Basement Membrane, Cell Differentiation, Clone Cells, Epidermis, Epithelial Cells, Mice, Transgenic, Regeneration, RNA, Messenger, Transcription, Genetic, 3T3 Cells, Cell Polarity, Gene Expression Regulation, Developmental, Hair Follicle, Multipotent Stem Cells, Mice

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