Evidence map›Paper›PMID 33629967›Full record

ArticleAging2021

A Wnt5a-Cdc42 axis controls aging and rejuvenation of hair-follicle stem cells.

Rajiv L Tiwari, Pratibha Mishra, Nicola Martin, Nikhil Oommen George, Vadim Sakk, Karin Soller, Kodandaramireddy Nalapareddy, Kalpana Nattamai, Karin Scharffetter-Kochanek, Maria Carolina Florian and 1 more

Open access · greenAbstract read
In one paragraph

Article in Aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
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  4. Article
  5. Hallmarks of stem cell aging.Cell stem cell · 2025
    Review
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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

11 authors at 3 institutions in 2 countries.

Rajiv L TiwariInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Pratibha MishraInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Nicola MartinInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Nikhil Oommen GeorgeInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Vadim SakkInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Karin SollerInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Kodandaramireddy NalapareddyDivision of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, OH 45229, USA.
Kalpana NattamaiDivision of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, OH 45229, USA.
Karin Scharffetter-KochanekDepartment of Dermatology and Allergic Diseases, University Clinic Ulm, Ulm 89081, Germany.
Maria Carolina FlorianInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Hartmut GeigerInstitute of Molecular Medicine, University of Ulm, Ulm 89081, Germany.
Universität Ulm · DECincinnati Children's Hospital Medical Center · USUniversity of Cincinnati · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Normal hair growth occurs in cycles, comprising growth (anagen), cessation (catagen) and rest (telogen). Upon aging, the initiation of anagen is significantly delayed, which results in impaired hair regeneration. Hair regeneration is driven by hair follicle stem cells (HFSCs). We show here that aged HFSCs present with a decrease in canonical Wnt signaling and a shift towards non-canonical Wnt5a driven signaling which antagonizes canonical Wnt signaling. Elevated expression of Wnt5a in HFSCs upon aging results in elevated activity of the small RhoGTPase Cdc42 as well as a change in the spatial distribution of Cdc42 within HFSCs. Treatment of aged HFSC with a specific pharmacological inhibitor of Cdc42 activity termed CASIN to suppress the aging-associated elevated activity of Cdc42 restored canonical Wnt signaling in aged HFSCs. Treatment of aged mice

Indexed as

Wnt Signaling PathwayAnimalsCellular SenescenceHair FollicleMiceRejuvenationStem CellsWnt-5a ProteinWnt-5a ProteinWnt5a protein, mouseanagenCdc42hair follicle stem cellspolarityWnt5a

Identifiers

PMID33629967
PMCPMC7950224
OpenAlexW3130260465

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.