Evidence map›Paper›PMID 27812843›Full record

ArticleInflammation2017

Porphyromonas gingivalis Lipopolysaccharide Induces a Pro-inflammatory Human Gingival Fibroblast Phenotype.

S Buket Bozkurt, Sema S Hakki, Erdogan E Hakki, Yusuf Durak, Alpdogan Kantarci

Abstract read
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In one paragraph

Article in Inflammation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Host insulin resistance caused byFrontiers in cellular and infection microbiology · 2023
    Pooled it
  2. Article
  3. Review
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  5. Article
  6. Article
  7. [Research progress on iron metabolism in the occurrence and development of periodontitis].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2024
    Review
  8. Article
  9. Dental Stem Cells and Lipopolysaccharides: A Concise Review.International journal of molecular sciences · 2024
    Review
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  11. Article
  12. Article
  13. Article
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  15. Article
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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

5 authors at 1 institution in 1 country.

S Buket BozkurtResearch Center of Faculty of Dentistry, Selcuk University, Konya, Turkey. buketbozkurt@yahoo.com.
Sema S HakkiFaculty of Dentistry, Department of Periodontology, Selcuk University, Konya, Turkey.
Erdogan E HakkiFaculty of Agriculture, Department of Soil Science & Plant Nutrition, Selcuk University, Konya, Turkey.
Yusuf DurakFaculty of Science, Department of Biology, Selcuk University, Konya, Turkey.
Alpdogan KantarciDepartment of Periodontology, The Forsyth Institute, Boston, MA, USA.
Selçuk University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human gingival fibroblasts (HGFs) are the major constituents of the gingival tissues responsible for the synthesis and degradation of the connective tissue while actively participating in immune reactions and inflammation. The aim of this study was to test the impact of lipopolysaccharide (LPS) from Porphyromonas gingivalis (P. gingivalis) on human gingival fibroblasts. Human gingival fibroblasts were treated with different P. gingivalis LPS concentrations. Cell survival rate was evaluated with 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) after 24 h. Cell proliferation was determined by counting cells on days 3 and 12. Expression of matrix metalloproteinases (MMPs), tissue inhibitors of MMPs (TIMPs), and pro-inflammatory cytokine transcripts in HGFs was determined by quantitative PCR (Q-PCR) analysis on days 3 and 8. P. gingivalis LPS decreased cell proliferation on day 3 (p < 0.05) compared to the control group without significantly impacting the cell survival (p > 0.05).The experiments showed that P. gingivalis LPS dose-dependently and differentially modulated the expression of MMP-1, 2, and 3 and TIMP-1 and 2 on days 3 and 8. TIMP-1 expression was significantly induced in P. gingivalis LPS-treated cells while TIMP-2 was increased in response to 10 and 30 ng/ml of LPS on day 3. P. gingivalis LPS induced up-regulation of MMP-1/TIMP-1 ratio on day 3 and increased MMP-2/TIMP-2 ratio on day 8 dose-dependently. Expression of interleukin (IL)-6 and IL-8 was stimulated at higher concentrations (1000 and 3000 ng/ml) of LPS. These findings demonstrate that P. gingivalis LPS suppresses cell proliferation and leads to increased pro-inflammatory changes in HGFs, suggesting that P. gingivalis LPS-induced modification of phenotypic and inflammatory characteristics in HGF could potentially be a pathogenic mechanism underlying the tissue destruction.

Indexed as

Cell ProliferationCell SurvivalDose-Response Relationship, DrugFibroblastsGingivaHumansInflammationInterleukin-6Interleukin-8LipopolysaccharidesMatrix MetalloproteinasesPorphyromonas gingivalisTissue Inhibitor of Metalloproteinase-1Tissue Inhibitor of Metalloproteinase-2CXCL8 protein, humanIL6 protein, humanInterleukin-6Interleukin-8LipopolysaccharidesMatrix MetalloproteinasesTIMP1 protein, humanTIMP2 protein, humanTissue Inhibitor of Metalloproteinase-1Tissue Inhibitor of Metalloproteinase-2cytokinefibroblastlipopolysaccharidePorphyromonas gingivalis

Identifiers

PMID27812843
OpenAlexW2548976418

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.