Evidence map›Paper›PMID 37118327›Full record

ArticleNature aging2021

Escape of hair follicle stem cells causes stem cell exhaustion during aging.

Chi Zhang, Dongmei Wang, Jingjing Wang, Li Wang, Wenli Qiu, Tsutomu Kume, Robin Dowell, Rui Yi

Open access · greenAbstract read
In one paragraph

Article in Nature aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
11.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
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  3. Review
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  7. Review
  8. An updated guide to hair follicle stem cell markers and changes in their expression with aging.JID innovations : skin science from molecules to population health · 2026
    Review
  9. Live imaging of vascular dynamics in mouse skin.The Journal of investigative dermatology · 2026
    Article
  10. Convergence of external and internal stressors on a stress-responsive enhancer of theProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  11. Article
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  18. Article
  19. Aging: the wound that never starts healing.Nature communications · 2025
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Chi ZhangDepartment of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA.
Dongmei WangDepartment of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA.
Jingjing WangDepartment of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA.ORCID 0000-0002-2600-3475
Li Wang10x Genomics, Pleasanton, CA, USA.
Wenli QiuLung Biology Center, Department of Medicine, UCSF, San Francisco, CA, USA.
Tsutomu KumeFeinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.ORCID 0000-0002-6005-5316
Robin DowellDepartment of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA.
Rui YiDepartment of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA. yir@northwestern.edu.ORCID 0000-0002-6934-7091
Northwestern University · USUniversity of Colorado Boulder · US

Funding

MicroRNA-mediated Regulation in Mammalian SkinR01AR059697 · NIAMS · UNIVERSITY OF COLORADO · PI YI, RUI · 2010 to 2020
$3.9M
Genetic Analysis of MicroRNA Functions in Skin Stem Cells In VivoR01AR066703 · NIAMS · UNIVERSITY OF COLORADO · PI YI, RUI · 2014 to 2024
$3.9M
Transcriptional regulation of skin stem cells and their nicheR01AR071435 · NIAMS · UNIVERSITY OF COLORADO · PI Rui Yi · 2017 to 2026
$3.8M
A Technique for Measuring Transcription Factor ActivityR01GM125871 · NIGMS · UNIVERSITY OF COLORADO · PI DOWELL-DEEN, ROBIN DEANNE · 2018 to 2021
$1.6M
Single cell analysis and live imaging of tissue stem cells and cancer initiating cellsF99CA253738 · NCI · UNIVERSITY OF COLORADO · PI ZHANG, CHI · 2020 to 2021
$75k
NCI NIH HHS F99 CA253738NIAMS NIH HHS R01 AR059697NIAMS NIH HHS R01 AR066703NIAMS NIH HHS R01 AR071435NIGMS NIH HHS R01 GM125871
6 · The paper itself

Abstract

Stem cell (SC) exhaustion is a hallmark of aging. However, the process of SC depletion during aging has not been observed in live animals, and the underlying mechanism contributing to tissue deterioration remains obscure. We find that, in aged mice, epithelial cells escape from the hair follicle (HF) SC compartment to the dermis, contributing to HF miniaturization. Single-cell RNA-seq and assay for transposase-accessible chromatin using sequencing (ATAC-seq) reveal reduced expression of cell adhesion and extracellular matrix genes in aged HF-SCs, many of which are regulated by Foxc1 and Nfatc1. Deletion of Foxc1 and Nfatc1 recapitulates HF miniaturization and causes hair loss. Live imaging captures individual epithelial cells migrating away from the SC compartment and HF disintegration. This study illuminates a hitherto unknown activity of epithelial cells escaping from their niche as a mechanism underlying SC reduction and tissue degeneration. Identification of homeless epithelial cells in aged tissues provides a new perspective for understanding aging-associated diseases.

Indexed as

Hair FollicleStem CellsAgingAlopeciaAnimalsMiceTranscription FactorsTranscription Factors

Identifiers

PMID37118327
PMCPMC11323283
OpenAlexW3204674240

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.