Evidence map›Paper›PMID 24339952›Full record

ArticlePloS one2013

The newly discovered cytokine IL-34 is expressed in gingival fibroblasts, shows enhanced expression by pro-inflammatory cytokines, and stimulates osteoclast differentiation.

Elisabeth A Boström, Pernilla Lundberg

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

39 citing papers in PubMed, 99 citations in OpenAlex.

  1. Review
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  8. A Lower IL-34 Expression Is Associated with Non-Healing Diabetic Foot Ulcers.Combinatorial chemistry & high throughput screening · 2024
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  17. Increased Levels of IL-34 in Acquired Immune-Mediated Neuropathies.Journal of molecular neuroscience : MN · 2021
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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

2 authors at 2 institutions in 1 country.

Elisabeth A BoströmKarolinska Institutet, Division of Periodontology, Department of Dental Medicine, Stockholm, Sweden.
Pernilla Lundberg
Karolinska Institutet · SEUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInterleukin-34 (IL-34) is a recently discovered cytokine functionally overlapping macrophage colony stimulating factor (M-CSF), a mediator of inflammation and osteoclastogenesis in bone-degenerative diseases such as rheumatoid arthritis. The objective of this study was to assess the expression of IL-34 in human gingival fibroblasts and investigate if the pro-inflammatory cytokines tumor necrosis factor alpha (TNF-α) and Interleukin-1Β (IL-1β) modulate its expression, and moreover if IL-34 could contribute to recruitment of bone-resorbing osteoclasts.

methodsIL-34 expression was evaluated in gingival fibroblasts by real time PCR following stimulation by TNF-α, IL-1β, and treatment with inhibitors of intracellular pathways. The formation of osteoclasts was evaluated by tartrate-resistant acid phosphatase (TRAP) staining of bone marrow macrophages treated with IL-34 or M-CSF in addition to receptor activator of nuclear factor kappa-B ligand (RANKL).

resultsIL-34 was expressed in gingival fibroblasts. The expression was enhanced by TNF-α and IL-1β, regulated by the transcription factor nuclear factor kappa B (NF-κΒ) and activation of c-Jun N-terminal kinase (JNK). Further, IL-34 supports RANKL-induced osteoclastogensis of bone marrow macrophages, independently of M-CSF. SUMMARY: In conclusion, this study shows for the first time IL-34 expression in human gingival fibroblasts, stimulated by TNF-α and IL-1β, key mediators of periodontal inflammation. Furthermore, IL-34 can be substituted for M-CSF in RANKL-induced osteoclastogenesis. IL-34 may contribute to inflammation and osteoclastogenesis in bone-degenerative diseases such as periodontitis.

Indexed as

Gene Expression RegulationAnimalsCell DifferentiationFibroblastsGingivaHumansInflammationInterleukin-1betaInterleukinsJNK Mitogen-Activated Protein KinasesMacrophage Colony-Stimulating FactorMaleMAP Kinase Signaling SystemMiceNF-kappa BOsteoclastsIL34 protein, humanInterleukin-1betaInterleukinsJNK Mitogen-Activated Protein KinasesMacrophage Colony-Stimulating FactorNF-kappa BRANK LigandTumor Necrosis Factor-alpha

Identifiers

PMID24339952
PMCPMC3858262
OpenAlexW2152590325

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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.