Evidence map›Paper›PMID 22028024›Full record

ArticleDevelopment (Cambridge, England)2011

Lhx2 differentially regulates Sox9, Tcf4 and Lgr5 in hair follicle stem cells to promote epidermal regeneration after injury.

Andrei N Mardaryev, Natalia Meier, Krzysztof Poterlowicz, Andrey A Sharov, Tatyana Y Sharova, Mohammed I Ahmed, Valentina Rapisarda, Christopher Lewis, Michael Y Fessing, Thomas M Ruenger and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Development (Cambridge, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
7.9field-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

85 citing papers in PubMed, 126 citations in OpenAlex.

  1. Trial
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  4. 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
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25 more citing papers are in PubMed but not listed here.

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

14 authors at 3 institutions in 3 countries.

Andrei N MardaryevCentre for Skin Sciences, School of Life Sciences, University of Bradford, UK.
Natalia Meier
Krzysztof Poterlowicz
Andrey A Sharov
Tatyana Y Sharova
Mohammed I Ahmed
Valentina Rapisarda
Christopher Lewis
Michael Y Fessing
Thomas M Ruenger
Jag Bhawan
Sabine Werner
Ralf Paus
Vladimir A Botchkarev
University of Bradford · GBBoston University · USUniversity of Lübeck · DE

Funding

FUNCTIONS OF NOGGIN AND SMAD1/5 IN HAIR GROWTH CONTROLR01AR049778 · NIAMS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BOTCHKAREV, VLADIMIR A · 2004 to 2014
$3.5M
Molecular control of normal and neoplastic skin stem cellsK01AR056771 · NIAMS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI SHAROV, ANDREY · 2009 to 2013
$621k
Biotechnology and Biological Sciences Research Council BB/E023010/1NIAMS NIH HHS K01 AR056771NIAMS NIH HHS R01 AR049778
6 · The paper itself

Abstract

The Lhx2 transcription factor plays essential roles in morphogenesis and patterning of ectodermal derivatives as well as in controlling stem cell activity. Here, we show that during murine skin morphogenesis, Lhx2 is expressed in the hair follicle (HF) buds, whereas in postnatal telogen HFs Lhx2(+) cells reside in the stem cell-enriched epithelial compartments (bulge, secondary hair germ) and co-express selected stem cell markers (Sox9, Tcf4 and Lgr5). Remarkably, Lhx2(+) cells represent the vast majority of cells in the bulge and secondary hair germ that proliferate in response to skin injury. This is functionally important, as wound re-epithelization is significantly retarded in heterozygous Lhx2 knockout (+/-) mice, whereas anagen onset in the HFs located closely to the wound is accelerated compared with wild-type mice. Cell proliferation in the bulge and the number of Sox9(+) and Tcf4(+) cells in the HFs closely adjacent to the wound in Lhx2(+/-) mice are decreased in comparison with wild-type controls, whereas expression of Lgr5 and cell proliferation in the secondary hair germ are increased. Furthermore, acceleration of wound-induced anagen development in Lhx2(+/-) mice is inhibited by administration of Lgr5 siRNA. Finally, Chip-on-chip/ChIP-qPCR and reporter assay analyses identified Sox9, Tcf4 and Lgr5 as direct Lhx2 targets in keratinocytes. These data strongly suggest that Lhx2 positively regulates Sox9 and Tcf4 in the bulge cells, and promotes wound re-epithelization, whereas it simultaneously negatively regulates Lgr5 in the secondary hair germ and inhibits HF cycling. Thus, Lhx2 operates as an important regulator of epithelial stem cell activity in the skin response to injury.

Indexed as

AnimalsAnimals, NewbornBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsCells, CulturedEmbryo, MammalianEpidermisFemaleGene Expression Regulation, DevelopmentalHair FollicleHumansLIM-Homeodomain ProteinsMiceMice, TransgenicReceptors, G-Protein-CoupledRegenerationRNA, Small InterferingBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsLgr5 protein, mouseLhx2 protein, mouseLIM-Homeodomain ProteinsReceptors, G-Protein-CoupledRNA, Small InterferingSox9 protein, mouseSOX9 Transcription FactorTcf4 protein, mouseTranscription Factor 4Transcription Factors

Identifiers

PMID22028024
PMCPMC4067271
OpenAlexW2126952313

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.