Cited by 431Single-cell and spatial transcriptomicsHair Growth and DisordersSkin and Cellular Biology Research

Single-Cell Transcriptomics Reveals that Differentiation and Spatial Signatures Shape Epidermal and Hair Follicle Heterogeneity

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Joost, Simon, Zeisel, Amit, Jacob, Tina, Sun, Xiaoyan, La Manno, Gioele, Lönnerberg, Peter, Linnarsson, Sten, Kasper, Maria·2016·Cell Systems

Abstract

The murine epidermis with its hair follicles represents an invaluable model system for tissue regeneration and stem cell research. Here we used single-cell RNA-sequencing to reveal how cellular heterogeneity of murine telogen epidermis is tuned at the transcriptional level. Unbiased clustering of 1,422 single-cell transcriptomes revealed 25 distinct populations of interfollicular and follicular epidermal cells. Our data allowed the reconstruction of gene expression programs during epidermal differentiation and along the proximal-distal axis of the hair follicle at unprecedented resolution. Moreover, transcriptional heterogeneity of the epidermis can essentially be explained along these two axes, and we show that heterogeneity in stem cell compartments generally reflects this model: stem cell populations are segregated by spatial signatures but share a common basal-epidermal gene module. This study provides an unbiased and systematic view of transcriptional organization of adult epidermis and highlights how cellular heterogeneity can be orchestrated in vivo to assure tissue homeostasis.

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Crossref · 10.1016/j.cels.2016.08.010

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  • Putative pilosebaceous clusters were identified based on expression of KRT15, LHX2, and SOX9.

    “We identified putative pilosebaceous clusters based on expression of known hair follicle markers or transcription factors (KRT15, LHX2, SOX9) and prior mouse and human studies in addition to manual cross-referencing of the Human Protein Atlas (Joost et al., 2016, Purba et al., 2015, Uhlén et al., 2015) and removed these from further analysis.”
  • The epithelial group contained three epidermal sub-clusters: CXCL14+ basal, KRT1+ intermediate, and KRT4+ peridermal keratinocytes.

    “The epithelial group contained three epidermal sub-clusters: CXCL14+ basal, KRT1+ intermediate, and KRT4+ peridermal keratinocytes (Fig. 2e, Extended Data Fig. 5)22.”

    From Hair-bearing human skin generated entirely from pluripotent stem cells (2020) · cites this paper as [22]

    The Results sections on unbiased clustering and subclustering describe murine epidermal and hair-follicle populations, including basal cells marked by Krt14 and Krt5. The searched passages do not describe an epithelial group divided into CXCL14+ basal, KRT1+ intermediate, and KRT4+ peridermal sub-clusters. (LLM, conf=0.76)

    Experimental — accuracy not yet measured

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Authors
Joost, S., Zeisel, A., Jacob, T., Sun, X., La Manno, G., Lönnerberg, P., Linnarsson, S., & Kasper, M.
Affiliations
Karolinska Institutet (SE)
Corresponding author
  • Linnarsson, Sten
  • Kasper, Maria
Venue
Cell Systems
Publisher
Elsevier BV
Published
2016-09
Volume
3
Issue
3
Pages
221-237.e9
ISSN
2405-4712 (ISSN-L)
OpenAlex
W2489812534
Cited by
429
References
73
Citations by year
2026: 42 · 2025: 35 · 2024: 45 · 2023: 40 · 2022: 55 · 2021: 45 · 2020: 68 · 2019: 39 · 2018: 40 · 2017: 18 · 2016: 1 · 2014: 1
FWCI
16.98
Type
journal article
Language
en
Open access
Locations
  • Cell Systems (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Health Sciences › Medicine › Urology › Hair Growth and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Skin and Cellular Biology Research
Keywords
epidermis, hair follicle, cellular heterogeneity, epidermal differentiation, telogen, interfollicular epidermis, proximal-distal axis, stem cell compartment, transcriptional organization, tissue homeostasis, spatial signatures, mouse skin
MeSH terms
Animals, Cell Differentiation, Epidermis, Female, Homeostasis, Mice, Inbred C57BL, Stem Cells, Hair Follicle, Mice, Transcriptome

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