Evidence map›Paper›PMID 28634882›Full record

ArticleIn vitro cellular & developmental biology. Animal2017

Gingipain of Porphyromonas gingivalis manipulates M1 macrophage polarization through C5a pathway.

Yubo Hou, Haiyan Yu, Xinchan Liu, Gege Li, Jiahui Pan, Changyu Zheng, Weixian Yu

Abstract read
PubMed Publisher
In one paragraph

Article in In vitro cellular & developmental biology. Animal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 23 citations in OpenAlex.

  1. Macrophage activation and invasion byJournal of oral microbiology · 2026
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  5. Frontiers in immunology · 2023
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  10. International journal of molecular sciences · 2019
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  12. Pathogenesis of Important Virulence Factors ofFrontiers in cellular and infection microbiology · 2019
    Review
  13. Sialidase Deficiency inFrontiers in cellular and infection microbiology · 2018
    Article
  14. Biochanin a Enhances the Defense AgainstFrontiers in cellular and infection microbiology · 2018
    Article
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

7 authors at 2 institutions in 2 countries.

Yubo HouDepartment of Periodontics, School of Stomatology, Jilin University, Changchun, Jilin, China.
Haiyan YuDepartment of Periodontics, School of Stomatology, Jilin University, Changchun, Jilin, China.
Xinchan LiuDepartment of Implantology, School of Stomatology, Jilin University, Changchun, Jilin, China.
Gege LiDepartment of Periodontics, School of Stomatology, Jilin University, Changchun, Jilin, China.
Jiahui PanDepartment of Periodontics, School of Stomatology, Jilin University, Changchun, Jilin, China.
Changyu ZhengMolecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA.
Weixian YuJilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun, Jilin, China. yu-wei-xian@163.com.
Jilin University · CNNational Institute of Dental and Craniofacial Research · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gingipains secreted by Porphyromonas gingivalis (P. gingivalis, Pg) play an important role in maintaining macrophage infiltrating. And, this study is to evaluate effects of gingipain on M1 macrophage polarization after exposure to Porphyromonas gingivalis (P. gingivalis, Pg) and if these effects are through complement component 5a (C5a) pathway. Mouse RAW264.7 macrophages were exposed to gingipain extracts, Escherichia coli lipopolysaccharides (Ec-LPS), Pg-LPS with or without the C5aR antagonist: PMX-53 for 24 h. Then, gene expressions and protein of IL-12, IL-23, iNOS, IL-10, TNF-α, IL-1β, and IL-6 were determined by qRT-PCR and ELISA assays. Surface markers CD86 for M1 and CD206 for M2 were also evaluated by flow cytometry. The results show that gingipain extracts alone increased expressions of IL-12, IL-23, iNOS, TNF-α, IL-1β, and IL-6, but not IL-10. Gingipain extracts plus Ec-LPS decreased expressions of IL-12, IL-23, iNOS, TNF-α, IL-1β, and IL-6 in which Ec-LPS induced increase. For gingipain extracts plus Pg-LPS-treated RAW264.7, macrophages, gingipain extracts enhanced expressions of IL-12 and IL-23 in which Pg-LPS induced increase, but not iNOS and IL-10 while gingipain extracts decreased expressions of TNF-α, IL-1β, and IL-6 in which Pg-LPS induced increase. Interestingly, PMX-53 increased expressions of IL-12, IL-23, and iNOS when RAW264.7 macrophages were treated with gingipain extracts plus Ec-LPS or Pg-LPS and PMX-53, while PMX-53 decreased expressions of TNF-α, IL-1β, and IL-6. Changes of CD86-positive macrophages were consistent with cytokine changes. Our data indicate that gingipain is a critical regulator, more like a promoter to manipulate M1 macrophage polarization in order to benefit P. gingivalis infection through the C5a pathway.

Indexed as

Adhesins, BacterialAnimalsAntigens, CDCell PolarityComplement C5aCysteine EndopeptidasesCytokinesDown-RegulationEscherichia coliGingipain Cysteine EndopeptidasesInflammationInflammation MediatorsLipopolysaccharidesMacrophagesMiceRAW 264.7 CellsAdhesins, BacterialAntigens, CDComplement C5aCysteine EndopeptidasesCytokinesGingipain Cysteine EndopeptidasesInflammation MediatorsLipopolysaccharidesC5aRGingipainMacrophagePeriodontitisPolarization

Identifiers

PMID28634882
OpenAlexW2686575608

What OpenQuestion holds

Textmetadata
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.