Evidence map›Paper›PMID 18316391›Full record

ArticleInfection and immunity2008

Pseudomonas aeruginosa induces membrane blebs in epithelial cells, which are utilized as a niche for intracellular replication and motility.

Annette A Angus, Amanda Ackerman Lee, Danielle K Augustin, Ellen J Lee, David J Evans, Suzanne M J Fleiszig

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

78 citing papers in PubMed, 122 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Comparison of virulence factors genes between exoU and exoS Pseudomonas aeruginosa in microbial keratitis.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Article
  6. Structural and functional insights into Pseudomonas aeruginosa's secretion systems 1-6: regulation, role in microbial keratitis and drug targets.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Review
  7. Article
  8. Differences in antimicrobial resistance between exoU and exoS isolates of Pseudomonas aeruginosa.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  9. ThemBio · 2025
    Article
  10. Article
  11. Article
  12. Article
  13. The Role ofPharmaceutics · 2024
    Review
  14. Article
  15. Article
  16. IntracellularAmerican journal of respiratory and critical care medicine · 2024
    Article
  17. Evidence for intracellularJournal of bacteriology · 2024
    Review
  18. Article
  19. Review
  20. Human airway epithelium controlsFrontiers in immunology · 2024
    Article

18 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

6 authors at 1 institution in 1 country.

Annette A AngusSchool of Optometry, University of California, Berkeley, CA 94720, USA.
Amanda Ackerman Lee
Danielle K Augustin
Ellen J Lee
David J Evans
Suzanne M J Fleiszig
University of California, Berkeley · US

Funding

SIGNIFICANCE OF CORNEAL CELL INVASION BY BACTERIAR01EY011221 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI Suzanne MJ FLEISZIG · 1995 to 2026
$8.4M
TRAINING IN INFECTIOUS DISEASES AND IMMUNITY RESEARCH (T32 AI007620)T32AI007620 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI RILEY, LEE W · 2000 to 2010
$1.2M
NEI NIH HHS EY11221NEI NIH HHS R01 EY011221NIAID NIH HHS T32 AI007620NIAID NIH HHS T32AI007620
6 · The paper itself

Abstract

Pseudomonas aeruginosa is known to invade epithelial cells during infection and in vitro. However, little is known of bacterial or epithelial factors modulating P. aeruginosa intracellular survival or replication after invasion, except that it requires a complete lipopolysaccharide core. In this study, real-time video microscopy revealed that invasive P. aeruginosa isolates induced the formation of membrane blebs in multiple epithelial cell types and that these were then exploited for intracellular replication and rapid real-time motility. Further studies revealed that the type three secretion system (T3SS) of P. aeruginosa was required for blebbing. Mutants lacking either the entire T3SS or specific T3SS components were instead localized to intracellular perinuclear vacuoles. Most T3SS mutants that trafficked to perinuclear vacuoles gradually lost intracellular viability, and vacuoles containing those bacteria were labeled by the late endosomal marker lysosome-associated marker protein 3 (LAMP-3). Interestingly, mutants deficient only in the T3SS translocon structure survived and replicated within the vacuoles that did not label with LAMP-3. Taken together, these data suggest two novel roles of the P. aeruginosa T3SS in enabling bacterial intracellular survival: translocon-dependent formation of membrane blebs, which form a host cell niche for bacterial growth and motility, and effector-dependent bacterial survival and replication within intracellular perinuclear vacuoles.

Indexed as

Bacterial ProteinsCarrier ProteinsCell LineCell MembraneColony Count, MicrobialCytoplasmEpithelial CellsGene DeletionHumansLysosomal-Associated Membrane Protein 3Lysosomal Membrane ProteinsMicrobial ViabilityMicroscopy, VideoNeoplasm ProteinsPseudomonas aeruginosaVacuolesBacterial ProteinsCarrier ProteinsLAMP3 protein, humanLysosomal-Associated Membrane Protein 3Lysosomal Membrane ProteinsNeoplasm Proteins

Identifiers

PMID18316391
PMCPMC2346716
OpenAlexW2126745460

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.