Evidence map›Paper›PMID 7729879›Full record

ArticleInfection and immunity1995

Stimulation of interleukin-8 production in epithelial cell lines by Helicobacter pylori.

J Huang, P W O'Toole, P Doig, T J Trust

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
14.9field-weighted citation impact, top 1% 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

65 citing papers in PubMed, 148 citations in OpenAlex.

  1. Prevalence and virulence factors ofJournal of dental sciences · 2024
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  8. A C-Terminal Coiled-Coil Region of CagL is Responsible forEuropean journal of microbiology & immunology · 2016
    Article
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5 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

4 authors at 1 institution in 1 country.

J HuangCanadian Bacterial Diseases Network, University of Victoria, British Columbia.
P W O'Toole
P Doig
T J Trust
Ocean Networks Canada Society · CA

Funding

FIMBRIAL ADHESINS OF HELICOBACTER PYLORIR01AI029927 · NIAID · UNIVERSITY OF VICTORIA · PI KAY, WILLIAM W · 1992 to 1994
–
NIAID NIH HHS R01AI29927-01A2
6 · The paper itself

Abstract

Following exposure to Helicobacter pylori cells, epithelial cell lines secreted interleukin-6 (IL-6) and IL-8 but not tumor necrosis factor alpha. Purified IL-6 alone did not stimulate IL-8 production from the cell lines tested, indicating that IL-6 was not an intermediary in IL-8 induction. Enhanced IL-8 secretion occurred in a time- and dose-dependent manner. None of 12 antibiotics tested exhibited a significant effect on IL-8-inducing activity, suggesting that preformed antigens were responsible for stimulating IL-8 secretion in vitro. Live bacterial cells caused the highest level of stimulation. Proteinase-digested and heated (56 or 100 degrees C) cells had significantly reduced stimulatory activities. Purified H. pylori lipopolysaccharide, but not exopolysaccharide, stimulated low-level secretion of IL-8, but only at high concentrations, while a water-extracted H. pylori antigen preparation was strongly stimulatory for HEp-2 cells. No reduction in IL-8-stimulatory activity was observed for H. pylori mutants negative for urease activity, production of a major lipoprotein, and motility. The noncytotoxic strain CCUG 915 stimulated lower IL-8 levels than other isolates. However, the otherwise isogenic cytotoxin-negative mutant 17874 delta vacA (S. H. Phadnis, D. Ilver, L. Janzon, S. Normark, and T. U. Westblom, Infect. Immun. 62:1557-1565, 1994) had the same IL-8-stimulatory ability as the parent strain, suggesting that surface proteins other than the vacuolating cytotoxin are involved in IL-8 stimulation.

Indexed as

Bacterial ProteinsBacterial ToxinsCytokinesCytotoxinsEnzyme-Linked Immunosorbent AssayEpithelial CellsEpitheliumHelicobacter InfectionsHelicobacter pyloriHumansImmunoblottingInterleukin-8Polymerase Chain ReactionPolysaccharides, BacterialRNA, MessengerTumor Cells, CulturedBacterial ProteinsBacterial ToxinsCytokinesCytotoxinsInterleukin-8Polysaccharides, BacterialRNA, MessengerVacA protein, Helicobacter pylori

Identifiers

PMID7729879
PMCPMC173217
OpenAlexW2133644186

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.