Evidence map›Paper›PMID 23374609›Full record

ArticleCellular microbiology2013

Neisseria gonorrhoeae phagosomes delay fusion with primary granules to enhance bacterial survival inside human neutrophils.

M Brittany Johnson, Alison K Criss

Open access · bronzeAbstract read
In one paragraph

Article in Cellular microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
4.0field-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

51 citing papers in PubMed, 65 citations in OpenAlex.

  1. Trial
  2. Article
  3. Neutrophil CEACAMs and the Inflammatory Response toJournal of innate immunity · 2026
    Review
  4. Frontiers in microbiology · 2026
    Review
  5. Review
  6. mBio · 2024
    Article
  7. Dying to Defend: Neutrophil Death Pathways and their Implications in Immunity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Review
  8. bioRxiv : the preprint server for biology · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Immune responses toFrontiers in immunology · 2023
    Review
  13. Mechanisms of host manipulation byFrontiers in microbiology · 2023
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. The Role of Neutrophil Extracellular Traps in Periodontitis.Frontiers in cellular and infection microbiology · 2021
    Review
  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.

M Brittany JohnsonDepartment of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA.
Alison K Criss
University of Virginia · US

Funding

INFECTIOUS DISEASES TRAINING PROGRAMT32AI007046 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI Alison K Criss, William A Petri · 1985 to 2026
$15.3M
Survival of Neisseria gonorrhoeae after primary human neutrophil challengeR01AI097312 · NIAID · UNIVERSITY OF VIRGINIA · PI CRISS, ALISON K · 2012 to 2022
$4.6M
Survival of Neisseria gonorrhoeae after primary human neutrophil challengeR37AI097312 · NIAID · UNIVERSITY OF VIRGINIA · PI Alison K Criss · 2025 to 2026
$1.1M
Gonococcal interactions with human polymorphonuclear leukocytesR00TW008042 · FIC · UNIVERSITY OF VIRGINIA · PI CRISS, ALISON K · 2009 to 2011
$675k
FIC NIH HHS R00 TW008042NIAID NIH HHS R01 AI097312NIAID NIH HHS R37 AI097312NIAID NIH HHS T32 AI007046
6 · The paper itself

Abstract

Symptomatic infection with Neisseria gonorrhoeae (Gc) promotes inflammation driven by polymorphonuclear leucocytes (PMNs, neutrophils), yet some Gc survive PMN exposure during infection. Here we report a novel mechanism of gonococcal resistance to PMNs: Gc phagosomes avoid maturation into phagolysosomes by delayed fusion with primary (azurophilic) granules, which contain antimicrobial components including serine proteases. Reduced phagosome-primary granule fusion was observed in gonorrheal exudates and human PMNs infected ex vivo. Delayed phagosome-granule fusion could be overcome by opsonizing Gc with immunoglobulin. Using bacterial viability dyes along with antibodies to primary granules revealed that Gc survival in PMNs correlated with early residence in primary granule-negative phagosomes. However, when Gc was killed prior to PMN exposure, dead bacteria were also found in primary granule-negative phagosomes. These results suggest that Gc surface characteristics, rather than active bacterial processes, influence phagosome maturation and that Gc death inside PMNs occurs after phagosome-granule fusion. Ectopically increasing primary granule-phagosome fusion, by immunoglobulin opsonization or PMN treatment with lysophosphatidylcholine, reduced intracellular Gc viability, which was attributed in part to serine protease activity. We conclude that one method for Gc to avoid PMN clearance in acute gonorrhoea is by delaying primary granule-phagosome fusion, thus preventing formation of a degradative phagolysosome.

Indexed as

AnimalsCytoplasmic GranulesHumansImmunoglobulin GInterleukin-8MaleMembrane FusionMicrobial ViabilityNeisseria gonorrhoeaeNeutrophilsPeptide HydrolasesPhagosomesSerine ProteasesImmunoglobulin GInterleukin-8Peptide HydrolasesSerine Proteases

Identifiers

PMID23374609
PMCPMC3713093
OpenAlexW1764265034

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.