Evidence map›Paper›PMID 11292723›Full record

ArticleInfection and immunity2001

Porphyromonas gingivalis gingipains and adhesion to epithelial cells.

T Chen, K Nakayama, L Belliveau, M J Duncan

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 3% 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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 137 citations in OpenAlex.

  1. Pooled it
  2. Gut microbes · 2026
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  4. Virulence diversity amongJournal of oral microbiology · 2026
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  5. Novel small molecule targeting PgQC reducesFrontiers in oral health · 2026
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  6. Article
  7. From Global to Nano: A Geographical Perspective ofPathogens (Basel, Switzerland) · 2024
    Review
  8. EvoraPlus Oral Probiotic Tablet: New paradigm for Caries Prevention in Children.International journal of clinical pediatric dentistry · 2024
    Article
  9. AmSystems · 2024
    Article
  10. Article
  11. Review
  12. Local and Systemic Effects ofMicroorganisms · 2023
    Review
  13. Article
  14. Frontiers in microbiology · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. [Research advances on the molecular mechanism of autophagy regulated by Porphyromonas gingivalis].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2017
    Review

3 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

T ChenDepartment of Molecular Genetics, The Forsyth Institute, Boston, Massachusetts 02115, USA.
K Nakayama
L Belliveau
M J Duncan
Nagasaki University · JP

Funding

P GINGIVALIS GENES INVOLVED IN EPITHELIAL ATTACHMENTR01DE010510 · NIDCR · FORSYTH INSTITUTE · PI DUNCAN, MARGARET J · 1996 to 2005
$2.5M
NIDCR NIH HHS R01 DE010510NIDCR NIH HHS R01 DE10510
6 · The paper itself

Abstract

Porphyromonas gingivalis is one of the principal organisms associated with adult periodontitis. Bacterial surface proteins such as fimbriae and gingipain hemagglutinin domains have been implicated as adhesins that actuate colonization of epithelium lining the gingival sulcus. We investigated the genetics of P. gingivalis adhesion to monolayers of epithelial cells using wild-type and gingipain mutant strains. These experiments suggested that arginine-specific gingipain (Rgp) catalytic activity modulated adhesion. From the data obtained with rgp mutants, we constructed a working hypothesis predicting that attachment and detachment of P. gingivalis to epithelial cells were mediated by gingipain adhesin and Rgp catalytic domains, respectively. A membrane-based epithelial cell binding assay, used to locate adhesins in extracellular fractions of wild-type and mutant strains, recognized gingipain peptides as adhesins rather than fimbriae. We developed a capture assay that demonstrated the binding of gingipain adhesin peptides to oral epithelial cells. The adherence of fimbrillin to epithelial cells was detected after heat denaturation of cell fractions. The prediction that Rgp catalytic activities mediated detachment was substantiated when the high level of attachment of an rgp mutant was reduced in the presence of wild-type cell fractions that contained gingipain catalytic activities.

Indexed as

Bacterial AdhesionAdhesins, BacterialAmino Acid SequenceAnimalsCatalysisCysteine EndopeptidasesGingipain Cysteine EndopeptidasesHemagglutininsHumansKB CellsMolecular Sequence DataMolecular WeightPorphyromonas gingivalisSheepAdhesins, BacterialCysteine EndopeptidasesGingipain Cysteine EndopeptidasesHemagglutinins

Identifiers

PMID11292723
PMCPMC98259
OpenAlexW2127993259

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.