Evidence map›Paper›PMID 33237598›Full record

ArticleExperimental dermatology2021

Single-cell transcriptomic analysis of small and large wounds reveals the distinct spatial organization of regenerative fibroblasts.

Quan M Phan, Sarthak Sinha, Jeff Biernaskie, Ryan R Driskell

Open access · hybridAbstract read
In one paragraph

Article in Experimental dermatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
8.5field-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

60 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
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  7. Article
  8. Decreased scleral Wnt5aNature communications · 2025
    Article
  9. Loss of MFAP5 and Its Effect on Skin Homeostasis and Wound Healing.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  10. Pathogenic expansion: fibroblast proliferation fuels fibrosis.The Journal of clinical investigation · 2025
    Article
  11. Article
  12. Squamous cell carcinoma antigen-1/SerpinB3 is an endogenous skin injury response element.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
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  19. Article
  20. Specific cell states underlie complex tissue regeneration in spiny mice.bioRxiv : the preprint server for biology · 2025
    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

4 authors at 2 institutions in 2 countries.

Quan M PhanSchool of Molecular Biosciences, Washington State University, Pullman, WA, USA.
Sarthak SinhaDepartment of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada.
Jeff BiernaskieDepartment of Surgery, Cumming School of Medicine, Alberta Children's Hospital Research Institute, Hotchkiss Brain Institute University of Calgary, Calgary, AB, Canada.
Ryan R DriskellSchool of Molecular Biosciences, Washington State University, Pullman, WA, USA.ORCID 0000-0001-7673-2564
University of Calgary · CAWashington State University · US

Funding

TRAINING IN BIOTECHNOLOGY: EMPHASIS ON PROTEIN CHEMISTRYT32GM008336 · NIGMS · WASHINGTON STATE UNIVERSITY · PI CALL, DOUGLAS R. · 1989 to 2023
$8.9M
Modulating Lef1 Activation in Fibroblasts During Hair Follicle Regeneration in Skin WoundsR56AR073778 · NIAMS · WASHINGTON STATE UNIVERSITY · PI DRISKELL, RYAN · 2020 to 2020
$337k
CIHR PJT-401394NIAMS NIH HHS R56 AR073778NIGMS NIH HHS T32 GM008336
6 · The paper itself

Abstract

Wound-induced hair follicle neogenesis (WIHN) has been an important model to study hair follicle regeneration during wound repair. However, the cellular and molecular components of the dermis that make large wounds more regenerative are not fully understood. Here, we compare and contrast recently published scRNA-seq data of small scarring wounds to wounds that regenerate in hope to elucidate the role of fibroblasts lineages in WIHN. Our analysis revealed an over-representation of the newly identified upper wound fibroblasts in regenerative wound conditions, which express the retinoic acid binding protein Crabp1. This regenerative cell type shares a similar gene signature to the murine papillary fibroblast lineage, which are necessary to support hair follicle morphogenesis and homeostasis. RNA velocity analysis comparing scarring and regenerating wounds revealed the divergent trajectories towards upper and lower wound fibroblasts and that the upper populations were closely associated with the specialized dermal papilla. We also provide analyses and explanation reconciling the inconsistency between the histological lineage tracing and the scRNA-seq data from recent reports investigating large wounds. Finally, we performed a computational test to map the spatial location of upper wound fibroblasts in large wounds which revealed that upper peripheral fibroblasts might harbour equivalent regenerative competence as those in the centre. Overall, our scRNA-seq reanalysis combining multiple samples suggests that upper wound fibroblasts are required for hair follicle regeneration and that papillary fibroblasts may migrate from the wound periphery to the centre during wound re-epithelialization. Moreover, data from this publication are made available on our searchable web resource: https://skinregeneration.org/.

Indexed as

TranscriptomeAnimalsCell LineageCicatrixDatabases, GeneticDermisFibroblastsHair FollicleKruppel-Like Transcription FactorsLuminescent ProteinsMiceRed Fluorescent ProteinRe-EpithelializationSequence Analysis, RNASingle-Cell AnalysisSkinHic1 protein, mouseKruppel-Like Transcription FactorsLuminescent ProteinsRed Fluorescent Proteindermal papillafibroblast heterogeneityscRNA-seqweb resource

Identifiers

PMID33237598
PMCPMC7839523
OpenAlexW3109627400

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.