Evidence map›Paper›PMID 23487314›Full record

ArticleDevelopment (Cambridge, England)2013

Hopx expression defines a subset of multipotent hair follicle stem cells and a progenitor population primed to give rise to K6+ niche cells.

Norifumi Takeda, Rajan Jain, Matthew R Leboeuf, Arun Padmanabhan, Qiaohong Wang, Li Li, Min Min Lu, Sarah E Millar, Jonathan A Epstein

Open access · bronzeAbstract read
In one paragraph

Article in Development (Cambridge, England), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
7.7field-weighted citation impact, top 2% 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

50 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
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  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. NFAT5 Controls the Integrity of Epidermis.Frontiers in immunology · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Time after time: circadian clock regulation of intestinal stem cells.Cellular and molecular life sciences : CMLS · 2020
    Review
  17. Review
  18. Article
  19. Developmental plasticity of epithelial stem cells in tooth and taste bud renewal.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  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

9 authors at 1 institution in 1 country.

Norifumi TakedaDepartment of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA 19104, USA.
Rajan Jain
Matthew R Leboeuf
Arun Padmanabhan
Qiaohong Wang
Li Li
Min Min Lu
Sarah E Millar
Jonathan A Epstein
University of Pennsylvania · US

Funding

Training Program in Cardiovascular Biology and MedicineT32HL007843 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI THOMAS P. CAPPOLA, Sharlene M Day · 1996 to 2026
$11.0M
Penn Dermatology Research Training ProgramT32AR007465 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI Elizabeth Anne Grice, David Joel Margolis · 1986 to 2026
$9.0M
Expansion of cardiac and hematopoietic progenitors by Wnt and NotchU01HL100405 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI EPSTEIN, JONATHAN A., MORRISEY, EDWARD E · 2009 to 2015
$8.1M
An unusual homeobox gene required for heart developmentR01HL071546 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI EPSTEIN, JONATHAN A. · 2003 to 2017
$4.9M
NHLBI NIH HHS 2T32HL007843-16NHLBI NIH HHS R01 HL071546NHLBI NIH HHS R01HL071546NHLBI NIH HHS T32 HL007843NHLBI NIH HHS U01 HL100405NIAMS NIH HHS T32 AR007465
6 · The paper itself

Abstract

The mammalian hair follicle relies on adult resident stem cells and their progeny to fuel and maintain hair growth throughout the life of an organism. The cyclical and initially synchronous nature of hair growth makes the hair follicle an ideal system with which to define homeostatic mechanisms of an adult stem cell population. Recently, we demonstrated that Hopx is a specific marker of intestinal stem cells. Here, we show that Hopx specifically labels long-lived hair follicle stem cells residing in the telogen basal bulge. Hopx(+) cells contribute to all lineages of the mature hair follicle and to the interfollicular epidermis upon epidermal wounding. Unexpectedly, our analysis identifies a previously unappreciated progenitor population that resides in the lower hair bulb of anagen-phase follicles and expresses Hopx. These cells co-express Lgr5, do not express Shh and escape catagen-induced apoptosis. They ultimately differentiate into the cytokeratin 6-positive (K6) inner bulge cells in telogen, which regulate the quiescence of adjacent hair follicle stem cells. Although previous studies have suggested that K6(+) cells arise from Lgr5-expressing lower outer root sheath cells in anagen, our studies indicate an alternative origin, and a novel role for Hopx-expressing lower hair bulb progenitor cells in contributing to stem cell homeostasis.

Indexed as

Epidermal CellsAnimalsbeta-GalactosidaseBromodeoxyuridineCell DifferentiationCell LineageFlow CytometryHairHair FollicleHomeodomain ProteinsIn Situ Nick-End LabelingKeratin-6KeratinocytesMiceMice, TransgenicMultipotent Stem Cellsbeta-GalactosidaseBromodeoxyuridineHod protein, mouseHomeodomain ProteinsKeratin-6Tamoxifen

Identifiers

PMID23487314
PMCPMC3621484
OpenAlexW2121614517

What OpenQuestion holds

Textmetadata
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.