Evidence map›Paper›PMID 23331495›Full record

ArticleMolecular oral microbiology2013

Mechanism and implications of CXCR4-mediated integrin activation by Porphyromonas gingivalis.

G Hajishengallis, M L McIntosh, S-I Nishiyama, F Yoshimura

Abstract read
In one paragraph

Article in Molecular oral microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
0.8field-weighted citation impact, top 31% 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

28 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Journal of dental anesthesia and pain medicine · 2026
    Review
  3. Alzheimer's Disease andLife (Basel, Switzerland) · 2025
    Review
  4. Review
  5. Review
  6. CD47 and thrombospondin-1 contribute to immune evasion byProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Review
  8. Article
  9. Article
  10. Sialidase facilitatesFrontiers in cellular and infection microbiology · 2023
    Article
  11. Frontiers in immunology · 2023
    Review
  12. The Japanese dental science review · 2021
    Review
  13. Review
  14. Article
  15. Oral PathogenMicroorganisms · 2020
    Article
  16. Review
  17. Roles of Porphyromonas gingivalis and its virulence factors in periodontitis.Advances in protein chemistry and structural biology · 2020
    Review
  18. Pathogenesis of Important Virulence Factors ofFrontiers in cellular and infection microbiology · 2019
    Review
  19. Article
  20. 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

4 authors at 4 institutions in 2 countries.

G HajishengallisDepartment of Microbiology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104, USA. geoh@dental.upenn.edu
M L McIntosh
S-I Nishiyama
F Yoshimura
Aichi Gakuin University · JPHosei University · JPUniversity of Louisville · USUniversity of Pennsylvania · US

Funding

P. gingivalis as a keystone pathogenR01DE015254 · NIDCR · UNIVERSITY OF PENNSYLVANIA · PI HAJISHENGALLIS, GEORGIOS · 2004 to 2018
$4.6M
Novel mechanisms and 'complement-ary' therapy in periodontitisR01DE021685 · NIDCR · UNIVERSITY OF PENNSYLVANIA · PI HAJISHENGALLIS, GEORGIOS · 2012 to 2016
$2.0M
Counteracting microbial immune evasion for the treatment of periodontitisF31DE021304 · NIDCR · UNIVERSITY OF LOUISVILLE · PI MCINTOSH, MEGAN LAVONNE · 2011 to 2012
$60k
NIDCR NIH HHS DE015254NIDCR NIH HHS DE021685NIDCR NIH HHS F31 DE021304NIDCR NIH HHS R01 DE015254NIDCR NIH HHS R01 DE021685
6 · The paper itself

Abstract

In monocytes and macrophages, the interaction of Porphyromonas gingivalis with Toll-like receptor 2 (TLR2) leads to the activation of a MyD88-dependent antimicrobial pathway and a phosphatidylinositol-3 kinase (PI3K) -dependent pro-adhesive pathway, which activates the β2 -integrin complement receptor 3 (CR3). By means of its fimbriae, P. gingivalis binds CXC-chemokine receptor 4 (CXCR4) and induces crosstalk with TLR2 that inhibits the MyD88-dependent antimicrobial pathway. In this paper, we investigated the impact of the P. gingivalis-CXCR4 interaction on the pro-adhesive pathway. Using human monocytes, mouse macrophages, or receptor-transfected cell lines, we showed that the binding of P. gingivalis fimbriae to CXCR4 induces CR3 activation via PI3K, albeit in a TLR2-independent manner. An isogenic strain of P. gingivalis expressing mutant fimbriae that do not interact with CXCR4 failed to efficiently activate CR3, leading to enhanced susceptibility to killing in vivo compared with the wild-type organism. This in vivo observation is consistent with previous findings that activated CR3 mediates safe entry of P. gingivalis into macrophages. Taken together with our previous work, these results indicate that the interaction of P. gingivalis with CXCR4 leads to inhibition of antimicrobial responses and enhancement of pro-adhesive responses, thereby maximizing its adaptive fitness in the mammalian host.

Indexed as

Adaptation, PhysiologicalAdhesins, BacterialAnimalsBacteroidaceae InfectionsBenzylaminesbeta-AlanineCD18 AntigensCells, CulturedCHO CellsCricetulusCyclamsFimbriae, BacterialHeterocyclic CompoundsHost-Pathogen InteractionsHumansMacrophage-1 AntigenAdhesins, BacterialBenzylaminesbeta-AlanineCD18 AntigensCyclamsHeterocyclic CompoundsMacrophage-1 AntigenMyeloid Differentiation Factor 88Phosphatidylinositol 3-KinasesPhthalic AcidsplerixaforReceptors, CXCR4Toll-Like Receptor 2XVA 143CXCR4immune evasionintegrinperiodontitisPorphyromonas gingivalisToll-like receptor 2

Identifiers

PMID23331495
PMCPMC4123224
OpenAlexW1976162259

What OpenQuestion holds

Textmetadata
LicenceTDM
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.