Evidence map›Paper›PMID 32969277›Full record

ArticleCartilage2021

Platelet-Rich Plasma Does Not Inhibit Inflammation or Promote Regeneration in Human Osteoarthritic Chondrocytes

Margot Rikkers, Koen Dijkstra, Bastiaan F Terhaard, Jon Admiraal, Riccardo Levato, Jos Malda, Lucienne A Vonk

Open access · bronzeAbstract read
In one paragraph

Article in Cartilage, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 7% 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, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Platelet-rich plasma injections induce disease-modifying effects in the treatment of osteoarthritis in animal models.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Biotherapeutic Applications of Platelet-Rich Plasma in Regenerative Medicine.Tissue engineering and regenerative medicine · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Advances in the Treatment of Partial-Thickness Cartilage Defect.International journal of nanomedicine · 2022
    Review
  13. Article
  14. Response.Cartilage · 2021
    Article
  15. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Margot RikkersDepartment of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0002-4453-5184
Koen DijkstraDepartment of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Bastiaan F TerhaardDepartment of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Jon AdmiraalDepartment of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0002-5964-0753
Riccardo LevatoDepartment of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Jos MaldaDepartment of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Lucienne A VonkDepartment of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Utrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aims of the study were to assess the anti-inflammatory properties of platelet-rich plasma (PRP) and investigate its regenerative potential in osteoarthritic (OA) human chondrocytes. We hypothesized that PRP can modulate the inflammatory response and stimulate cartilage regeneration.

designPrimary human chondrocytes from OA knees were treated with manually prepared PRP, after which cell migration and proliferation were assessed. Next, tumor necrosis factor-α-stimulated chondrocytes were treated with a range of concentrations of PRP. Expression of genes involved in inflammation and chondrogenesis was determined by real-time polymerase chain reaction. In addition, chondrocytes were cultured in PRP gels and fibrin gels consisting of increasing concentrations of PRP. The production of cartilage extracellular matrix (ECM) was assessed. Deposition and release of glycosaminoglycans (GAG) and collagen was quantitatively determined and visualized by (immuno)histochemistry. Proliferation was assessed by quantitative measurement of DNA.

resultsBoth migration and the inflammatory response were altered by PRP, while proliferation was stimulated. Expression of chondrogenic markers COL2A1 and ACAN was downregulated by PRP, independent of PRP concentration. Chondrocytes cultured in PRP gel for 28 days proliferated significantly more when compared with chondrocytes cultured in fibrin gels. This effect was dose dependent. Significantly less GAGs and collagen were produced by chondrocytes cultured in PRP gels when compared with fibrin gels. This was qualitatively confirmed by histology.

conclusionsPRP stimulated chondrocyte proliferation, but not migration. Also, production of cartilage ECM was strongly downregulated by PRP. Furthermore, PRP did not act anti-inflammatory on chondrocytes in an

Indexed as

ChondrocytesPlatelet-Rich PlasmaCell ProliferationHumansInflammationRegenerationchondrocyteinflammationplatelet-rich plasmaPRP gelregeneration

Identifiers

PMID32969277
PMCPMC8721607
OpenAlexW3088822869

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.