Evidence map›Paper›PMID 18606523›Full record

ArticleMicrobial pathogenesis2008

Outer membrane protein A expression in Enterobacter sakazakii is required to induce microtubule condensation in human brain microvascular endothelial cells for invasion.

Vijay K Singamsetty, Ying Wang, Hiroyuki Shimada, Nemani V Prasadarao

Open access · greenAbstract readComparative Study
In one paragraph

Article in Microbial pathogenesis, 2008. 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
3.6field-weighted citation impact, top 9% 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, 76 citations in OpenAlex.

  1. DecipheringMicroorganisms · 2026
    Review
  2. Article
  3. Article
  4. Frontiers in immunology · 2022
    Article
  5. Frontiers in immunology · 2022
    Article
  6. Emergence ofFrontiers in microbiology · 2020
    Article
  7. Article
  8. Article
  9. Expression ofFood science and biotechnology · 2018
    Article
  10. Virulence and Antibiotic Resistance Profiles ofFrontiers in microbiology · 2018
    Article
  11. Frontiers in microbiology · 2018
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Cronobacter: an emerging opportunistic pathogen associated with neonatal meningitis, sepsis and necrotizing enterocolitis.Journal of perinatology : official journal of the California Perinatal Association · 2013
    Review
  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 1 institution in 1 country.

Vijay K SingamsettyDivision of Infectious Diseases, The Saban Research Institute, Childrens Hospital Los Angeles, Los Angeles, CA 90027, USA.
Ying Wang
Hiroyuki Shimada
Nemani V Prasadarao
Children's Hospital of Los Angeles · US

Funding

Brain Endothelial Receptor for E. coliR01AI040567 · NIAID · CHILDREN'S HOSPITAL OF LOS ANGELES · PI DAVIS, MARK E, GODDARD, WILLIAM ANDREW · 2001 to 2015
$5.5M
BRAIN ENDOTHELIAL GLYCOPROTEIN INTERACTIVE WITH E COLIR29AI040567 · NIAID · CHILDREN'S HOSPITAL LOS ANGELES · PI NEMANI, PRASADARAO V · 1997 to 2001
$211k
NIAID NIH HHS AI40567NIAID NIH HHS R01 AI040567NIAID NIH HHS R29 AI040567
6 · The paper itself

Abstract

Enterobacter sakazakii (ES) causes neonatal meningitis and necrotizing enterocolitis with case-fatality rates among infected infants ranging from 40 to 80%. Very little is known about the mechanisms by which these organisms cause disease. Here, we demonstrate that ES invades human brain microvascular endothelial cells (HBMEC) with higher frequency when compared with epithelial cells and endothelial cells from different origins. The entry of ES into HBMEC requires the expression of outer membrane protein A (OmpA), as the OmpA-deletion mutant was sevenfold less invasive than the wild type ES and the bacterium does not multiply inside HBMEC. Anti-OmpA antibodies generated against the OmpA of Escherichia coli K1, which also recognize the OmpA of ES, did not prevent the invasion of ES in HBMEC. ES invasion depends on microtubule condensation in HBMEC and is independent of actin filament reorganization. Both PI3-kinase and PKC-alpha were activated during ES entry into HBMEC between 15 min and 30 min of infection. Concomitantly, overexpression of dominant negative forms of PI3-kinase and PKC-alpha significantly inhibited the invasion of ES into HBMEC. In summary, ES invasion of HBMEC is dependent on the expression of OmpA similar to that of E. coli K1; however, the epitopes involved in the interaction with HBMEC appears to be different.

Indexed as

Bacterial Outer Membrane ProteinsBrainCells, CulturedCronobacter sakazakiiEndothelial CellsEndothelium, VascularEnterobacteriaceae InfectionsEpithelial CellsEscherichia coliHumansMicrotubulesPhosphatidylinositol 3-KinasesProtein Kinase C-alphaBacterial Outer Membrane ProteinsOMPA outer membrane proteinsPhosphatidylinositol 3-KinasesProtein Kinase C-alpha

Identifiers

PMID18606523
PMCPMC2536595
OpenAlexW1974817747

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.