Evidence map›Paper›PMID 31634377›Full record

ArticlePloS one2019

An ex vivo tissue model of cartilage degradation suggests that cartilage state can be determined from secreted key protein patterns.

Michael Neidlin, Efthymia Chantzi, George Macheras, Mats G Gustafsson, Leonidas G Alexopoulos

Abstract read
In one paragraph

Article in PloS one, 2019. 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
–field-weighted citation impact
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.

  1. Article
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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

5 authors.

Michael NeidlinDepartment of Mechanical Engineering, National Technical University of Athens, Athens, Greece.ORCID 0000-0002-5582-6905
Efthymia ChantziDepartment of Medical Sciences, Uppsala University, Uppsala, Sweden.
George Macheras4th Orthopaedic Department, KAT Hospital, Athens, Greece.
Mats G GustafssonDepartment of Medical Sciences, Uppsala University, Uppsala, Sweden.
Leonidas G AlexopoulosDepartment of Mechanical Engineering, National Technical University of Athens, Athens, Greece.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pathophysiology of osteoarthritis (OA) involves dysregulation of anabolic and catabolic processes associated with a broad panel of proteins that ultimately lead to cartilage degradation. An increased understanding about these protein interactions with systematic in vitro analyses may give new ideas regarding candidates for treatment of OA related cartilage degradation. Therefore, an ex vivo tissue model of cartilage degradation was established by culturing tissue explants with bacterial collagenase II. Responses of healthy and degrading cartilage were analyzed through protein abundance in tissue supernatant with a 26-multiplex protein profiling assay, after exposing the samples to a panel of 55 protein stimulations present in synovial joints of OA patients. Multivariate data analysis including exhaustive pairwise variable subset selection identified the most outstanding changes in measured protein secretions. MMP9 response to stimulation was outstandingly low in degrading cartilage and there were several protein pairs like IFNG and MMP9 that can be used for successful discrimination between degrading and healthy samples. The discovered changes in protein responses seem promising for accurate detection of degrading cartilage. The ex vivo model seems interesting for drug discovery projects related to cartilage degradation, for example when trying to uncover the unknown interactions between secreted proteins in healthy and degrading tissues.

Indexed as

AgedAged, 80 and overCartilage, ArticularCase-Control StudiesChondrocytesCollagenasesFemaleHumansInterferon-gammaMaleMatrix Metalloproteinase 9OsteoarthritisCollagenasesIFNG protein, humanInterferon-gammaMatrix Metalloproteinase 9MMP9 protein, human

Identifiers

PMID31634377
PMCPMC6802827

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.