Evidence map›Paper›PMID 32873774›Full record

ArticleCell death & disease2020

Cannabidiol (CBD): a killer for inflammatory rheumatoid arthritis synovial fibroblasts.

Torsten Lowin, Ren Tingting, Julia Zurmahr, Tim Classen, Matthias Schneider, Georg Pongratz

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
11.0field-weighted citation impact, top 1% 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

64 citing papers in PubMed, 124 citations in OpenAlex.

  1. Exploring cannabidiol effects on inflammatory markers in individuals with cocaine use disorder: a randomized controlled trial.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
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  14. The effects of Cannabidiol on podocytes in vitro.Biochemical and biophysical research communications · 2025
    Article
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  16. Article
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  18. Current and Potential Use of Biologically Active Compounds Derived fromInternational journal of molecular sciences · 2024
    Review
  19. Article
  20. Article

4 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Torsten LowinPoliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, D-40225, Duesseldorf, Germany. torsten.lowin@med.uni-duesseldorf.de.ORCID http://orcid.org/0000-0001-7368-2776
Ren TingtingPoliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, D-40225, Duesseldorf, Germany.
Julia ZurmahrPoliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, D-40225, Duesseldorf, Germany.
Tim ClassenKlinik für Orthopädie/Orthopädische Rheumatologie, St. Elisabeth-Hospital Meerbusch-Lank, D-40668, Meerbusch, Germany.
Matthias SchneiderPoliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, D-40225, Duesseldorf, Germany.
Georg PongratzPoliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, D-40225, Duesseldorf, Germany.
Düsseldorf University Hospital · DESt. Elisabeth-Hospital Bochum · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cannabidiol (CBD) is a non-intoxicating phytocannabinoid from cannabis sativa that has demonstrated anti-inflammatory effects in several inflammatory conditions including arthritis. However, CBD binds to several receptors and enzymes and, therefore, its mode of action remains elusive. In this study, we show that CBD increases intracellular calcium levels, reduces cell viability and IL-6/IL-8/MMP-3 production of rheumatoid arthritis synovial fibroblasts (RASF). These effects were pronounced under inflammatory conditions by activating transient receptor potential ankyrin (TRPA1), and by opening of the mitochondrial permeability transition pore. Changes in intracellular calcium and cell viability were determined by using the fluorescent dyes Cal-520/PoPo3 together with cell titer blue and the luminescent dye RealTime-glo. Cell-based impedance measurements were conducted with the XCELLigence system and TRPA1 protein was detected by flow cytometry. Cytokine production was evaluated by ELISA. CBD reduced cell viability, proliferation, and IL-6/IL-8 production of RASF. Moreover, CBD increased intracellular calcium and uptake of the cationic viability dye PoPo3 in RASF, which was enhanced by pre-treatment with TNF. Concomitant incubation of CBD with the TRPA1 antagonist A967079 but not the TRPV1 antagonist capsazepine reduced the effects of CBD on calcium and PoPo3 uptake. In addition, an inhibitor of the mitochondrial permeability transition pore, cyclosporin A, also blocked the effects of CBD on cell viability and IL-8 production. PoPo3 uptake was inhibited by the voltage-dependent anion-selective channel inhibitor DIDS and Decynium-22, an inhibitor for all organic cation transporter isoforms. CBD increases intracellular calcium levels, reduces cell viability, and IL-6/IL-8/MMP-3 production of RASF by activating TRPA1 and mitochondrial targets. This effect was enhanced by pre-treatment with TNF suggesting that CBD preferentially targets activated, pro-inflammatory RASF. Thus, CBD possesses anti-arthritic activity and might ameliorate arthritis via targeting synovial fibroblasts under inflammatory conditions.

Indexed as

AgedArthritis, RheumatoidCalciumCannabidiolCell ProliferationCell SurvivalFemaleFibroblastsHumansInflammationInflammation MediatorsInterleukin-6Interleukin-8MaleMatrix Metalloproteinase 3Middle AgedCalciumCannabidiolInflammation MediatorsInterleukin-6Interleukin-8Matrix Metalloproteinase 3TRPA1 Cation ChannelTRPA1 protein, humanTumor Necrosis Factor-alpha

Identifiers

PMID32873774
PMCPMC7463000
OpenAlexW3082397071

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.