Evidence map›Paper›PMID 32854733›Full record

ArticleJournal of orthopaedic surgery and research2020

Increasing the level of cytoskeletal protein Flightless I reduces adhesion formation in a murine digital flexor tendon model.

Jessica E Jackson, Zlatko Kopecki, Peter J Anderson, Allison J Cowin

Open access · goldAbstract read
In one paragraph

Article in Journal of orthopaedic surgery and research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.1field-weighted citation impact, top 26% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. 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

4 authors at 2 institutions in 1 country.

Jessica E JacksonRegenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia.
Zlatko KopeckiRegenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia.
Peter J AndersonFaculty of Medicine and Health, University of Adelaide, Adelaide, South Australia, Australia.
Allison J CowinRegenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia. allison.cowin@unisa.edu.au.ORCID http://orcid.org/0000-0003-2885-2080
University of South Australia · AUThe University of Adelaide · AU

Funding

National Health and Medical Research Council 1102617
6 · The paper itself

Abstract

backgroundSurgical repair of tendons is common, but function is often limited due to the formation of flexor tendon adhesions which reduce the mobility and use of the affected digit and hand. The severity of adhesion formation is dependent on numerous cellular processes many of which involve the actin cytoskeleton. Flightless I (Flii) is a highly conserved cytoskeletal protein, which has previously been identified as a potential target for improved healing of tendon injuries. Using human in vitro cell studies in conjunction with a murine model of partial laceration of the digital flexor tendon, we investigated the effect of modulating Flii levels on tenocyte function and formation of adhesions.

methodsHuman tenocyte proliferation and migration was determined using WST-1 and scratch wound assays following Flii knockdown by siRNA in vitro. Additionally, mice with normal and increased levels of Flii were subjected to a partial laceration of the digital flexor tendon in conjunction with a full tenotomy to immobilise the paw. Resulting adhesions were assessed using histology and immunohistochemistry for collagen I, III, TGF-β1and -β3

resultsFlii knockdown significantly reduced human tenocyte proliferation and migration in vitro. Increasing the expression of Flii significantly reduced digital tendon adhesion formation in vivo which was confirmed through significantly smaller adhesion scores based on collagen fibre orientation, thickness, proximity to other fibres and crimping. Reduced adhesion formation was accompanied with significantly decreased deposition of type I collagen and increased expression of TGF-β1 in vivo.

conclusionsThese findings suggest that increasing the level of Flii in an injured tendon may be beneficial for decreasing tendon adhesion formation.

Indexed as

AnimalsCell MovementCell ProliferationDisease Models, AnimalFibril-Associated CollagensGene ExpressionHumansImmunohistochemistryMice, Inbred BALB CMice, TransgenicMicrofilament ProteinsTendon InjuriesTenocytesTissue AdhesionsTrans-ActivatorsTransforming Growth Factor betaFibril-Associated CollagensFLII protein, humanFlII protein, mouseMicrofilament ProteinsTrans-ActivatorsTransforming Growth Factor betaAdhesionsFlightless IFliiTendonTenocyte

Identifiers

PMID32854733
PMCPMC7450967
OpenAlexW3080464719

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.