Evidence map›Paper›PMID 31286564›Full record

ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2020

Stem cell-derived extracellular vesicles attenuate the early inflammatory response after tendon injury and repair.

Hua Shen, Susumu Yoneda, Yousef Abu-Amer, Farshid Guilak, Richard H Gelberman

Open access · bronzeAbstract read
In one paragraph

Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 4 pooled it
9.5field-weighted citation impact, top 1% 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

73 citing papers in PubMed, 4 syntheses or guidelines pooled it, 111 citations in OpenAlex.

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  12. Grafts in tendon repair.Materials today. Bio · 2026
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13 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

5 authors at 1 institution in 1 country.

Hua ShenDepartment of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, Missouri.ORCID 0000-0001-9060-8172
Susumu YonedaDepartment of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, Missouri.
Yousef Abu-AmerDepartment of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, Missouri.
Farshid GuilakDepartment of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, Missouri.ORCID 0000-0001-7380-0330
Richard H GelbermanDepartment of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, Missouri.
Washington University in St. Louis · US

Funding

WU INSTITUTE OF CLINICAL AND TRANSLATIONAL SCIENCESUL1TR002345 · NCATS · WASHINGTON UNIVERSITY · PI William G. Powderly · 2017 to 2026
$97.8M
WU-MDACC Inter-Institutional Molecular Imaging CenterP50CA094056 · NCI · WASHINGTON UNIVERSITY · PI KOPAN, RAPHAEL · 2002 to 2016
$26.3M
Resource Based Center for Musculoskeletal Biology and Medicine (Overall Application)P30AR074992 · NIAMS · WASHINGTON UNIVERSITY · PI MATTHEW J SILVA · 2019 to 2026
$6.8M
The Role of the Osteoblast Secretome in Bone FormationP30AR057235 · NIAMS · WASHINGTON UNIVERSITY · PI SILVA, MATTHEW J · 2009 to 2018
$5.7M
Enhanced Tendon Healing Through Growth Factor and Cell TherapiesR01AR062947 · NIAMS · WASHINGTON UNIVERSITY · PI GELBERMAN, RICHARD H, THOMOPOULOS, STAVROS · 2012 to 2022
$5.5M
Stem Cell-Derived Extracellular Vesicles for Enhanced Tendon HealingR21AR075274 · NIAMS · WASHINGTON UNIVERSITY · PI SHEN, HUA · 2019 to 2020
$381k
Foundation for Barnes-Jewish HospitalNCATS NIH HHS UL1 TR002345NCI NIH HHS P50 CA094056NIAMS NIH HHS P30 AR057235NIAMS NIH HHS P30 AR074992NIAMS NIH HHS R01 AR062947NIAMS NIH HHS R21 AR075274
6 · The paper itself

Abstract

Adipose-derived stem cells (ASCs) have the potential to enhance tendon repair via paracrine regulation of the inflammatory response to injury. Extracellular vesicles (EVs), which are secreted by ASCs, have shown promise in mediating this process. This study was designed to evaluate the effect of ASC EVs on early tendon healing using a mouse Achilles tendon injury and repair model. EVs were isolated from the conditioned medium of naïve and interferonγ-primed ASCs and applied to the repair site via a collagen sheet. Tendon healing was assessed in nuclear factor-κB (NF-κB)-luciferase reporter mice up to 7 days after suture repair. As anticipated, repair site NF-κB activity increased greater than twofold following tendon repair. Treatment with EVs from primed but not naïve ASCs effectively suppressed the response. Accordingly, the pro-inflammatory genes Il1b and Ifng were both dramatically increased in repaired tendons, while primed, but not naïve ASC EVs attenuated the response. Compared with control repairs, primed ASC EVs further reduced the rate of post-repair tendon gap formation and rupture and facilitated collagen formation at the injury site. Additional experiments demonstrated that EVs target macrophages and that primed ASC EVs were most effective in blocking macrophage NF-κB activity. Collectively, the findings of this study demonstrate that primed ASC EVs, similar to ASCs, attenuate the early tendon inflammatory response after injury via modulation of the macrophage inflammatory response. Statement of clinical significance: These findings introduce a new cell-free therapy, derived from stem cells, for tendon repair with the potential for improved therapeutic efficacy and safety. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:117-127, 2020.

Indexed as

Tendon InjuriesWound HealingAchilles TendonAnimalsExtracellular VesiclesMacrophagesMesenchymal Stem CellsMice, TransgenicNF-kappa BNF-kappa Bexosomeextracellular vesicleinflammationmesenchymal stem celltendon injury

Identifiers

PMID31286564
PMCPMC6917960
OpenAlexW2958493709

What OpenQuestion holds

Textmetadata
LicenceTDM
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.