Evidence map›Paper›PMID 23227926›Full record

ArticleArthritis research & therapy2012

The effect of Link N on differentiation of human bone marrow-derived mesenchymal stem cells.

John Antoniou, Hong Tian Wang, Abdulrahman M Alaseem, Lisbet Haglund, Peter J Roughley, Fackson Mwale

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

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  11. The role of aggrecan in normal and osteoarthritic cartilage.Journal of experimental orthopaedics · 2014
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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

6 authors at 3 institutions in 1 country.

John Antoniou
Hong Tian Wang
Abdulrahman M Alaseem
Lisbet Haglund
Peter J Roughley
Fackson Mwale
Jewish General Hospital · CAMcGill University · CAShriners Hospitals for Children - Canada · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

introductionWe previously showed that Link N can stimulate extracellular matrix biosynthesis by intervertebral disc (IVD) cells, both in vitro and in vivo, and is therefore a potential stimulator of IVD repair. The purpose of the present study was to determine how Link N may influence human mesenchymal stem cell (MSC) differentiation, as a prelude to using Link N and MSC supplementation in unison for optimal repair of the degenerated disc.

methodsMSCs isolated from the bone marrow of three osteoarthritis patients were cultured in chondrogenic or osteogenic differentiation medium without or with Link N for 21 days. Chondrogenic differentiation was monitored by proteoglycan staining and quantitation by using Alcian blue, and osteogenic differentiation was monitored by mineral staining and quantitation by using Alzarin red S. In addition, proteoglycan secretion was monitored with the sulfated glycosaminoglycan (GAG) content of the culture medium, and changes in gene expression were analyzed with real-time reverse transcription (RT) PCR.

resultsLink N alone did not promote MSC chondrogenesis. However, after MSCs were supplemented with Link N in chondrogenic differentiation medium, the quantity of GAG secreted into the culture medium, as well as aggrecan, COL2A1, and SOX9 gene expression, increased significantly. The gene expression of COL10A1 and osteocalcin (OC) were downregulated significantly. When MSCs were cultured in osteogenic differentiation medium, Link N supplementation led to a significant decrease in mineral deposition, and alkaline phosphatase (ALP), OC, and RUNX2 gene expression.

conclusionsLink N can enhance chondrogenic differentiation and downregulate hypertrophic and osteogenic differentiation of human MSCs. Therefore, in principle, Link N could be used to optimize MSC-mediated repair of the degenerated disc.

Indexed as

AdultAggrecansAlkaline PhosphataseAmino Acid SequenceBone Marrow CellsCell DifferentiationCells, CulturedChondrogenesisCollagen Type IICore Binding Factor Alpha 1 SubunitExtracellular Matrix ProteinsGene ExpressionGlycosaminoglycansHumansMesenchymal Stem CellsMiddle AgedACAN protein, humanAggrecansAlkaline PhosphataseCOL2A1 protein, humanCollagen Type IICore Binding Factor Alpha 1 SubunitExtracellular Matrix ProteinsGlycosaminoglycansOsteocalcinPeptidesProteoglycan Link ProteinProteoglycansRUNX2 protein, humanSOX9 protein, humanSOX9 Transcription Factor

Identifiers

PMID23227926
PMCPMC3674585
OpenAlexW2134979259

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.