Evidence map›Paper›PMID 34440671›Full record

ArticleCells2021

An In Vitro System to Study the Effect of Subchondral Bone Health on Articular Cartilage Repair in Humans.

Timothy Hopkins, Karina T Wright, Nicola J Kuiper, Sally Roberts, Paul Jermin, Peter Gallacher, Jan Herman Kuiper

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
  3. Developing anFrontiers in immunology · 2025
    Article
  4. Article
  5. Article
  6. Article
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

7 authors at 2 institutions in 1 country.

Timothy HopkinsSchool of Pharmacy and Bioengineering, Keele University, Staffordshire ST5 5BG, UK.ORCID 0000-0002-0300-8230
Karina T WrightSchool of Pharmacy and Bioengineering, Keele University, Staffordshire ST5 5BG, UK.
Nicola J KuiperSchool of Pharmacy and Bioengineering, Keele University, Staffordshire ST5 5BG, UK.ORCID 0000-0001-6173-1446
Sally RobertsSchool of Pharmacy and Bioengineering, Keele University, Staffordshire ST5 5BG, UK.
Paul JerminSchool of Pharmacy and Bioengineering, Keele University, Staffordshire ST5 5BG, UK.
Peter GallacherSchool of Pharmacy and Bioengineering, Keele University, Staffordshire ST5 5BG, UK.
Jan Herman KuiperSchool of Pharmacy and Bioengineering, Keele University, Staffordshire ST5 5BG, UK.
Robert Jones and Agnes Hunt Orthopaedic Hospital · GBKeele University · GB

Funding

Medical Research Council MR/L010453/1Orthopaedic Institute Limited RPG143Versus Arthritis 18480Versus Arthritis C092
6 · The paper itself

Abstract

Chondrocyte-based cartilage repair strategies, such as articular chondrocyte implantation, are widely used, but few studies addressed the communication between native subchondral bone cells and the transplanted chondrocytes. An indirect co-culture model was developed, representing a chondrocyte/scaffold-construct repair of a cartilage defect adjoining bone, where the bone could have varying degrees of degeneration. Human BM-MSCs were isolated from two areas of subchondral bone in each of five osteochondral tissue specimens from five patients undergoing knee arthroplasty. These two areas underlaid the macroscopically and histologically best and worst cartilage, representing early and late-stage OA, respectively. BM-MSCs were co-cultured with normal chondrocytes suspended in agarose, with the two cell types separated by a porous membrane. After 0, 7, 14 and 21 days, chondrocyte-agarose scaffolds were assessed by gene expression and biochemical analyses, and the abundance of selected proteins in conditioned media was assessed by ELISA. Co-culture with late-OA BM-MSCs resulted in a reduction in GAG deposition and a decreased expression of genes encoding matrix-specific proteins (

Indexed as

ChondrogenesisOsteogenesisWound HealingAgedAggrecansArthroplasty, Replacement, KneeBone Marrow CellsCartilage, ArticularCell CommunicationCells, CulturedChondrocytesCoculture TechniquesCollagen Type IIFemaleGlycosaminoglycansHumansACAN protein, humanAggrecansCOL2A1 protein, humanCollagen Type IIGlycosaminoglycansTGFB1 protein, humanTransforming Growth Factor beta1bone-marrow-derived mesenchymal stromal cells (BM-MSCs)cartilage repairchondrocytesco-culturehumanin vitro modellingosteoarthritis

Identifiers

PMID34440671
PMCPMC8392168
OpenAlexW3186135410

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.