Evidence map›Paper›PMID 34512650›Full record

ArticleFrontiers in immunology2021

Substance P and Alpha-Calcitonin Gene-Related Peptide Differentially Affect Human Osteoarthritic and Healthy Chondrocytes.

Sabine Stöckl, Annett Eitner, Richard J Bauer, Matthias König, Brian Johnstone, Susanne Grässel

Abstract read
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

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  16. Article
  17. The Current Role of Disease-modifying Osteoarthritis Drugs.The archives of bone and joint surgery · 2023
    Review
  18. Article
  19. Article
  20. Osteoarthritis Pain.International journal of molecular sciences · 2022
    Review
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.

Sabine StöcklDepartment of Orthopaedic Surgery, Experimental Orthopaedics, Center for Medical Biotechnology, University of Regensburg, Regensburg, Germany.
Annett EitnerDepartment of Trauma, Hand and Reconstructive Surgery, Experimental Trauma Surgery, Jena University Hospital, Friedrich-Schiller-University Jena, Jena, Germany.
Richard J BauerDepartment of Oral and Maxillofacial Surgery, Center for Medical Biotechnology, University Hospital Regensburg, Regensburg, Germany.
Matthias KönigDepartment of Orthopedics, University Medical Center Regensburg, Asklepios Klinikum Bad Abbach, Bad Abbach, Germany.
Brian JohnstoneDepartment of Orthopaedics and Rehabilitation, Oregon Health & Science University, Portland, OR, United States.
Susanne GrässelDepartment of Orthopaedic Surgery, Experimental Orthopaedics, Center for Medical Biotechnology, University of Regensburg, Regensburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteoarthritis (OA) is a degenerative joint disease that not only causes cartilage loss but also structural damage in all joint tissues. Joints are innervated by alpha-calcitonin gene-related peptide (αCGRP) and substance P (SP)-positive sensory nerve fibers. Alteration of sensory joint innervation could be partly responsible for degenerative changes in joints that contribute to the development of OA. Therefore, our aim was to analyze and compare the molecular effects of SP and αCGRP on the metabolism of articular chondrocytes from OA patients and non-OA cartilage donors. We treated the cells with SP or αCGRP and analysed the influence of these neuropeptides on chondrocyte metabolism and modulation of signaling pathways. In chondrocytes from healthy cartilage, SP had minimal effects compared with its effects on OA chondrocytes, where it induced inflammatory mediators, inhibited chondrogenic markers and promoted apoptosis and senescence. Treatment with αCGRP also increased apoptosis and senescence and reduced chondrogenic marker expression in OA chondrocytes, but stimulated an anabolic and protective response in healthy chondrocytes. The catabolic influence of SP and αCGRP might be due to activation of ERK signaling that could be counteracted by an increased cAMP response. We suggest that a switch between the G-subunits of the corresponding receptors after binding their ligands SP or αCGRP plays a central role in mediating the observed effects of sensory neuropeptides on chondrocytes.

Indexed as

AgedApoptosisCalcitonin Gene-Related PeptideCartilage, ArticularCells, CulturedChondrocytesFemaleHumansMaleMiddle AgedOsteoarthritisSignal TransductionSubstance PCalcitonin Gene-Related PeptideSubstance PAKTcAMPchondrocyte metabolismERKosteoarthritissensory nervous systemSPαCGRP

Identifiers

PMID34512650
PMCPMC8430215

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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.