Evidence map›Paper›PMID 18547335›Full record

ArticleCellular microbiology2008

Lipid raft-dependent uptake, signalling and intracellular fate of Porphyromonas gingivalis in mouse macrophages.

Min Wang, George Hajishengallis

Open access · greenAbstract read
In one paragraph

Article in Cellular microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
4.8field-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

39 citing papers in PubMed, 74 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Article
  6. Dec2 inhibits macrophage pyroptosis to promote periodontal homeostasis.Journal of periodontal & implant science · 2022
    Article
  7. Article
  8. Virulence · 2021
    Article
  9. Article
  10. Antagonistic Activities ofFrontiers in immunology · 2021
    Article
  11. Review
  12. Frontiers in cell and developmental biology · 2020
    Article
  13. Next-generation paclitaxel-nanoparticle formulation for pancreatic cancer treatment.Nanomedicine : nanotechnology, biology, and medicine · 2019
    Article
  14. Review
  15. Review
  16. Article
  17. The dental calculus metabolome in modern and historic samples.Metabolomics : Official journal of the Metabolomic Society · 2017
    Article
  18. Article
  19. Frontiers in cellular and infection microbiology · 2017
    Article
  20. 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

2 authors at 1 institution in 1 country.

Min WangDepartment of Periodontics/Oral Health and Systemic Disease, University of Louisville Health Sciences Center, Louisville, KY 40292, USA.
George Hajishengallis
University of Louisville · US

Funding

P. gingivalis as a keystone pathogenR01DE015254 · NIDCR · UNIVERSITY OF PENNSYLVANIA · PI HAJISHENGALLIS, GEORGIOS · 2004 to 2018
$4.6M
Oral Pathogen Exploitation of Innate Recognition as a Function of AgeR01DE018292 · NIDCR · UNIVERSITY OF PENNSYLVANIA · PI HAJISHENGALLIS, GEORGIOS · 2007 to 2011
$1.6M
NIDCR NIH HHS DE015254NIDCR NIH HHS DE018292NIDCR NIH HHS R01 DE015254NIDCR NIH HHS R01 DE018292
6 · The paper itself

Abstract

Lipid rafts are cholesterol-enriched microdomains involved in cellular trafficking and implicated as portals for certain pathogens. We sought to determine whether the oral pathogen Porphyromonas gingivalis enters macrophages via lipid rafts, and if so, to examine the impact of raft entry on its intracellular fate. Using J774A.1 mouse macrophages, we found that P. gingivalis colocalizes with lipid rafts in a cholesterol-dependent way. Depletion of cellular cholesterol using methyl-beta-cyclodextrin resulted in about 50% inhibition of P. gingivalis uptake, although this effect was reversed by cholesterol reconstitution. The intracellular survival of P. gingivalis was dramatically inhibited in cholesterol-depleted cells relative to untreated or cholesterol-reconstituted cells, even when infections were adjusted to allow equilibration of the initial intracellular bacterial load. P. gingivalis thus appeared to exploit raft-mediated uptake for promoting its survival. Consistent with this, lipid raft disruption enhanced the colocalization of internalized P. gingivalis with lysosomes. In contrast, raft disruption did not affect the expression of host receptors interacting with P. gingivalis, although it significantly inhibited signal transduction. In summary, P. gingivalis uses macrophage lipid rafts as signalling and entry platforms, which determine its intracellular fate to the pathogen's own advantage.

Indexed as

Animalsbeta-CyclodextrinsCell LineCholesterolCytosolEnzyme InhibitorsLysosomesMacrophagesMembrane MicrodomainsMiceMicrobial ViabilityPorphyromonas gingivalisbeta-CyclodextrinsCholesterolEnzyme Inhibitorsmethyl-beta-cyclodextrin

Identifiers

PMID18547335
PMCPMC2670473
OpenAlexW2088571284

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.