Evidence map›Paper›PMID 26491301›Full record

ArticleInternational journal of nanomedicine2015

Attenuation of the macrophage inflammatory activity by TiO₂ nanotubes via inhibition of MAPK and NF-κB pathways.

Patricia Neacsu, Anca Mazare, Patrik Schmuki, Anisoara Cimpean

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 61 citations in OpenAlex.

  1. Review
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  5. Article
  6. Histochemistry for Molecular Imaging in Nanomedicine.International journal of molecular sciences · 2024
    Review
  7. Article
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  14. [Osteoimmunomodulatory effects of inorganic biomaterials in the process of bone repair].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2022
    Review
  15. Article
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  20. Anodic TiONanomaterials (Basel, Switzerland) · 2021
    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

4 authors at 2 institutions in 2 countries.

Patricia NeacsuDepartment of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania.
Anca MazareDepartment of Materials Science, University of Erlangen-Nuremberg, Erlangen, Germany.
Patrik SchmukiDepartment of Materials Science, University of Erlangen-Nuremberg, Erlangen, Germany.
Anisoara CimpeanDepartment of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania.
Friedrich-Alexander-Universität Erlangen-Nürnberg · DEUniversity of Bucharest · RO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biomaterial implantation in a living tissue triggers the activation of macrophages in inflammatory events, promoting the transcription of pro-inflammatory mediator genes. The initiation of macrophage inflammatory processes is mainly regulated by signaling proteins of mitogen-activated protein kinase (MAPK) and by nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathways. We have previously shown that titania nanotubes modified Ti surfaces (Ti/TiO2) mitigate the immune response, compared with flat Ti surfaces; however, little is known regarding the underlying mechanism. Therefore, the aim of this study is to investigate the mechanism(s) by which this nanotopography attenuates the inflammatory activity of macrophages. Thus, we analyzed the effects of TiO2 nanotubes on the activation of MAPK and NF-κB signaling pathways in standard and lipopolysaccharide-evoked conditions. Results showed that the Ti/TiO2 significantly reduce the expression levels of the phosphorylated forms of p38, ERK1/2, c-Jun NH2-terminal kinase (JNK), IKKβ, and IkB-α. Furthermore, a significant reduction in the p65 nuclear accumulation on the nanotubular surface was remarked. Following, by using specific MAPK inhibitors, we observed that lipopolysaccharide-induced production of monocyte chemotactic protein-1 and nitric oxide was significantly inhibited on the Ti/TiO2 surface via p38 and ERK1/2, but not via JNK. However, the selective inhibitor for JNK signaling pathway (SP600125) was effective in reducing tumor necrosis factor alpha release as well as monocyte chemotactic protein-1 and nitric oxide production. Altogether, these data suggest that titania nanotubes can attenuate the macrophage inflammatory response via suppression of MAPK and NF-κB pathways providing a potential mechanism for their anti-inflammatory activity.

Indexed as

AnimalsAnti-Inflammatory AgentsCells, CulturedFluorescent Antibody TechniqueI-kappa B ProteinsInflammationJNK Mitogen-Activated Protein KinasesLipopolysaccharidesMacrophagesMAP Kinase Signaling SystemMiceMitogen-Activated Protein KinasesNanotubesNF-kappa BNF-KappaB Inhibitor alphaNitric OxideAnti-Inflammatory AgentsI-kappa B ProteinsJNK Mitogen-Activated Protein KinasesLipopolysaccharidesMitogen-Activated Protein KinasesNF-kappa BNF-KappaB Inhibitor alphaNfkbia protein, mouseNitric OxideTitaniumtitanium dioxideTumor Necrosis Factor-alphainflammatory mediatorsmacrophagemitogen-activated protein kinasesNF-κBtitania nanotubes

Identifiers

PMID26491301
PMCPMC4608594
OpenAlexW2156215743

What OpenQuestion holds

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Read underepoch 390

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.