Evidence map›Paper›PMID 26249339›Full record

ArticleArthritis research & therapy2015

Peripheral blood derived mononuclear cells enhance osteoarthritic human chondrocyte migration.

Niina Hopper, Frances Henson, Roger Brooks, Erden Ali, Neil Rushton, John Wardale

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  5. Chondrocyte Thrombomodulin Protects against Osteoarthritis.International journal of molecular sciences · 2023
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  9. Using apheresis-derived cells to augment microdrilling in the treatment of chondral defects in an ovine model.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Niina HopperDivision of Trauma and Orthopaedic Surgery, University of Cambridge, Addenbrooke's Hospital, Hills Road, BC2 0QQ, Cambridge, UK. niina.hopper@gmail.com.
Frances HensonDepartment of Veterinary Medicine, University of Cambridge, Madingley Road, CB3 0ES, Cambridge, UK. fmdh1@cam.ac.uk.
Roger BrooksDivision of Trauma and Orthopaedic Surgery, University of Cambridge, Addenbrooke's Hospital, Hills Road, BC2 0QQ, Cambridge, UK. rb10003@cam.ac.uk.
Erden AliDivision of Trauma and Orthopaedic Surgery, University of Cambridge, Addenbrooke's Hospital, Hills Road, BC2 0QQ, Cambridge, UK. ea389@cam.ac.uk.
Neil RushtonDivision of Trauma and Orthopaedic Surgery, University of Cambridge, Addenbrooke's Hospital, Hills Road, BC2 0QQ, Cambridge, UK. nr10000@cam.ac.uk.
John WardaleDivision of Trauma and Orthopaedic Surgery, University of Cambridge, Addenbrooke's Hospital, Hills Road, BC2 0QQ, Cambridge, UK. jw626@cam.ac.uk.
Addenbrooke's Hospital · GBUniversity of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionA major problem in cartilage repair is the lack of chondrogenic cells migrating from healthy tissue into defects. Cartilage is essentially avascular and therefore its healing is not considered to involve mononuclear cells. Peripheral blood derived mononuclear cells (PBMC) offer a readily available autologous cell source for clinical use and therefore this study was designed to evaluate the effects of PBMCs on chondrocytes and cartilage.

methodsHuman primary chondrocytes and cartilage tissue explants were taken from patients undergoing total knee replacement (n = 17). Peripheral blood samples were obtained from healthy volunteers (n = 12) and mononuclear cells were isolated by density-gradient centrifugation. Cell migration and chemokinetic potential were measured using a scratch assay, xCELLigence and CyQuant assay. PCR array and quantitative PCR was used to evaluate mRNA expression of 87 cell motility and/or chondrogenic genes.

resultsThe chondrocyte migration rate was 2.6 times higher at 3 hour time point (p < 0.0001) and total number of migrating chondrocytes was 9.7 times higher (p < 0.0001) after three day indirect PBMC stimulus and 8.2 times higher (p < 0.0001) after three day direct co-culture with PBMCs. A cartilage explant model confirmed that PBMCs also exert a chemokinetic role on ex vivo tissue. PBMC stimulation was found to significantly upregulate the mRNA levels of 2 chondrogenic genes; collagen type II (COL2A1 600-fold, p < 0.0001) and SRY box 9 (SOX9 30-fold, p < 0.0001) and the mRNA levels of 7 genes central in cell motility and migration were differentially regulated by 24h PBMC stimulation.

conclusionThe results support the concept that PBMC treatment enhances chondrocyte migration without suppressing the chondrogenic phenotype possibly via mechanistic pathways involving MMP9 and IGF1. In the future, peripheral blood mononuclear cells could be used as an autologous point-ofcare treatment to attract native chondrocytes from the diseased tissue to aid in cartilage repair.

Indexed as

AdultAgedAged, 80 and overCell MovementCells, CulturedChondrocytesCoculture TechniquesFemaleHumansLeukocytes, MononuclearMaleMiddle AgedOsteoarthritis, KneeYoung Adult

Identifiers

PMID26249339
PMCPMC4528856
OpenAlexW2113523396

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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.