Evidence map›Paper›PMID 34544860›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Translational targeting of inflammation and fibrosis in frozen shoulder: Molecular dissection of the T cell/IL-17A axis.

Moeed Akbar, Lindsay A N Crowe, Michael McLean, Emma Garcia-Melchor, Lucy MacDonald, Kristyn Carter, Umberto G Fazzi, David Martin, Angus Arthur, James H Reilly and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

34 citing papers in PubMed, 51 citations in OpenAlex.

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  6. Identification of common genetic features and pathways for osteoporosis with frozen shoulder by integrated bioinformatics analysis and machine learning.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2026
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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

12 authors at 2 institutions in 1 country.

Moeed AkbarInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.ORCID 0000-0002-6923-4724
Lindsay A N CroweInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Michael McLeanInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Emma Garcia-MelchorInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Lucy MacDonaldInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Kristyn CarterInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Umberto G FazziDepartment of Orthopaedic Surgery, Queen Elizabeth University Hospital, Glasgow G51 4TF, United Kingdom.
David MartinDepartment of Orthopaedic Surgery, Queen Elizabeth University Hospital, Glasgow G51 4TF, United Kingdom.
Angus ArthurDepartment of Orthopaedic Surgery, Queen Elizabeth University Hospital, Glasgow G51 4TF, United Kingdom.
James H ReillyInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Iain B McInnesInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Neal L MillarInstitute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences,University of Glasgow, Glasgow G12 8QQ, United Kingdom; neal.millar@glasgow.ac.uk.ORCID 0000-0001-9251-9907
University of Glasgow · GBQueen Elizabeth University Hospital · GB

Funding

Medical Research Council MR/R020515/1
6 · The paper itself

Abstract

Frozen shoulder is a common fibroproliferative disease characterized by the insidious onset of pain and restricted range of shoulder movement with a significant socioeconomic impact. The pathophysiological mechanisms responsible for chronic inflammation and matrix remodeling in this prevalent fibrotic disorder remain unclear; however, increasing evidence implicates dysregulated immunobiology. IL-17A is a key cytokine associated with inflammation and tissue remodeling in numerous musculoskeletal diseases, and thus, we sought to determine the role of IL-17A in the immunopathogenesis of frozen shoulder. We demonstrate an immune cell landscape that switches from a predominantly macrophage population in nondiseased tissue to a T cell-rich environment in disease. Furthermore, we observed a subpopulation of IL-17A-producing T cells capable of inducing profibrotic and inflammatory responses in diseased fibroblasts through enhanced expression of the signaling receptor IL-17RA, rendering diseased cells more sensitive to IL-17A. We further established that the effects of IL-17A on diseased fibroblasts was TRAF-6/NF-κB dependent and could be inhibited by treatment with an IKKβ inhibitor or anti-IL-17A antibody. Accordingly, targeting of the IL-17A pathway may provide future therapeutic approaches to the management of this common, debilitating disease.

Indexed as

BursitisCase-Control StudiesCells, CulturedCytokinesFemaleFibroblastsFibrosisHumansInflammationInterleukin-17MaleMiddle AgedNF-kappa BSignal TransductionT-LymphocytesCytokinesIL17A protein, humanInterleukin-17NF-kappa Badhesive capsulitisfrozen shoulderIL-17AinflammationT cell

Identifiers

PMID34544860
PMCPMC8488623
OpenAlexW3200202448

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.