Evidence map›Paper›PMID 11796626›Full record

ArticleInfection and immunity2002

Intracellular survival of Neisseria gonorrhoeae in male urethral epithelial cells: importance of a hexaacyl lipid A.

Deborah M B Post, Nancy J Phillips, Jian Q Shao, David D Entz, Bradford W Gibson, Michael A Apicella

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

34 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
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  5. Review
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  8. Article
  9. Article
  10. Article
  11. Lipid a is more than acyl chains.Infection and immunity · 2014
    Article
  12. Article
  13. Article
  14. Article
  15. The use of resazurin as a novel antimicrobial agent against Francisella tularensis.Frontiers in cellular and infection microbiology · 2013
    Article
  16. Article
  17. Article
  18. Article
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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 2 institutions in 1 country.

Deborah M B PostDepartment of Microbiology, University of Iowa, Iowa City, Iowa 52242, USA.
Nancy J Phillips
Jian Q Shao
David D Entz
Bradford W Gibson
Michael A Apicella
University of Iowa · USUniversity of California, San Francisco · US

Funding

YEAST THREONINE &SERINE KINASESP41RR001614 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SZOKA, FRANCIS C. · 1985 to 2011
$24.1M
Studies of the capsular-like antigen of F. tularensisP01AI044642 · NIAID · UNIVERSITY OF IOWA · PI GIBSON, BRADFORD WAYNE · 1999 to 2014
$18.2M
TRAINING IN MECHANISMS OF PARASITISMT32AI007511 · NIAID · UNIVERSITY OF IOWA · PI BUTLER, NOAH SULLIVAN, WEBER, MARY · 1996 to 2025
$8.1M
THE BIOLOGY OF PATHOGENIC NEISSERIAR01AI045728 · NIAID · UNIVERSITY OF IOWA · PI APICELLA, MICHAEL A. · 1999 to 2010
$3.7M
SITE SPECIFIC ANTIINSULIN RECEPTOR ANTIBODIESP30DK025295 · NIDDK · UNIVERSITY OF IOWA · PI SIGMUND, CURT DANIEL · 1986 to 2002
$2.6M
Structure and Function of Haemophilus ducreyi LOSR01AI031254 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI GIBSON, BRADFORD WAYNE · 1994 to 2007
$2.0M
CONTROL OF ENTEROTOXIN GENE EXPRESSION IN S AUREUSR01AI045778 · NIAID · KANSAS STATE UNIVERSITY · PI STEWART, GEORGE C. · 1999 to 2003
$485k
NCRR NIH HHS P41 RR001614NCRR NIH HHS RR01614NIAID NIH HHS AI31254NIAID NIH HHS AI44642NIAID NIH HHS AI45424NIAID NIH HHS AI45778NIAID NIH HHS P01 AI044642NIAID NIH HHS R01 AI031254NIAID NIH HHS R01 AI045728NIAID NIH HHS T32AI07511NIDDK NIH HHS DK25295
6 · The paper itself

Abstract

Neisseria gonorrhoeae is a strict human pathogen that invades and colonizes the urogenital tracts of males and females. Lipooligosaccharide (LOS) has been shown to play a role in gonococcal pathogenesis. The acyl transferase MsbB is involved in the biosynthesis of the lipid A portion of the LOS. In order to determine the role of an intact lipid A structure on the pathogenesis of N. gonorrhoeae, the msbB gene was cloned and sequenced, a deletion and insertion mutation was introduced into N. gonorrhoeae, and the mutant strain was designated 1291A11K3. Mass spectrometric analyses of 1291A11K3 LOS determined that this mutation resulted in a pentaacyl rather than a hexaacyl lipid A structure. These analyses also demonstrated an increase in the phosphorylation of lipid A and an increase in length of the oligosaccharide of a minor species of the msbB LOS. The interactions of this mutant with male urethral epithelial cells (uec) were examined. Transmission and scanning electron microscopy studies indicated that the msbB mutants formed close associations with and were internalized by the uec at levels similar to those of the parent strain. Gentamicin survival assays performed with 1291A11K3 and 1291 bacteria demonstrated that there was no difference in the abilities of the two strains to adhere to uec; however, significantly fewer 1291A11K3 bacteria than parent strain bacteria were recovered from gentamicin-treated uec. These studies suggest that the lipid A modification in the N. gonorrhoeae msbB mutant may render it more susceptible to innate intracellular killing mechanisms when internalized by uec.

Indexed as

Escherichia coli ProteinsAcyltransferasesAmino Acid SequenceAntigens, BacterialBacterial ProteinsBase SequenceBlotting, WesternDNA, BacterialElectrophoresis, Polyacrylamide GelEpithelial CellsEscherichia coliHumansIntracellular FluidLipopolysaccharidesMaleMicroscopy, ElectronAcyltransferasesAntigens, BacterialBacterial ProteinsDNA, BacterialEscherichia coli Proteinslipid-linked oligosaccharidesLipopolysaccharidesLpxL protein, bacteriaLpxL protein, E coliMsbB protein, E coliSodium Dodecyl Sulfate

Identifiers

PMID11796626
PMCPMC127693
OpenAlexW2129258112

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.