Evidence map›Paper›PMID 11254625›Full record

ArticleInfection and immunity2001

Helicobacter pylori resists phagocytosis by macrophages: quantitative assessment by confocal microscopy and fluorescence-activated cell sorting.

N Ramarao, T F Meyer

Abstract read
In one paragraph

Article in Infection and immunity, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 68 citations in OpenAlex.

  1. Review
  2. Article
  3. Trained Immunity and Trained Tolerance: The Case ofInternational journal of molecular sciences · 2024
    Review
  4. BRD4 Regulates Glycolysis-Dependent Nos2 Expression in Macrophages Upon H pylori Infection.Cellular and molecular gastroenterology and hepatology · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Medical research archives · 2022
    Article
  9. Frontiers in immunology · 2022
    Review
  10. An Overview ofMicroorganisms · 2021
    Review
  11. Proregenerative Activity of IL-33 in Gastric Tissue Cells UndergoingInternational journal of molecular sciences · 2020
    Article
  12. Article
  13. Frontiers in immunology · 2019
    Article
  14. Strategies used byWorld journal of gastroenterology · 2017
    Review
  15. Article
  16. Review
  17. Prevalence of H. Pylori in Tonsillar Tissue of Patients with Chronic Recurrent Tonsillitis Using Rapid Urease Test in a Tertiary Referral Hospital in Sub Saharan Africa.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2015
    Article
  18. Article
  19. Article
  20. Immune evasion strategies used by Helicobacter pylori.World journal of gastroenterology · 2014
    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.

N RamaraoMax-Planck-Institut für Infektionsbiologie, Abteilung Molekulare Biologie, 10117 Berlin, Germany.
T F Meyer
Max Planck Institute for Infection Biology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Helicobacter pylori infection of the stomach epithelium is characterized by an infiltration of polymorphonuclear and mononuclear cells. These immune cells contribute to mucosal damage which may eventually lead to gastritis, peptic ulcer, gastric cancer, and/or MALT-associated gastric lymphoma. Here we show that H. pylori inhibits its own uptake, as well as in trans the phagocytosis of Neisseria gonorrhoeae, by human and murine macrophages. This antiphagocytic activity is dependent on the presence of the cag pathogenicity island in the H. pylori genome. We demonstrate that H. pylori also expresses its antiphagocytic activity towards the myelomonocytic cell line JOSKM, thus providing a potent model for the study of the interaction between H. pylori and phagocytes. Our data were obtained using laser confocal microscopy and flow cytometry after quenching the fluorescence of labeled extracellular bacteria. The antiphagocytic activity of H. pylori may explain the persistence of H. pylori and its pathological consequences. The use of cell lines and flow cytometry will hopefully facilitate progress in our understanding of the immune escape of these persistent bacteria.

Indexed as

Flow CytometryPhagocytosisAnimalsCell LineHelicobacter pyloriHumansMacrophagesMiceMicroscopy, Confocal

Identifiers

PMID11254625
PMCPMC98197
OpenAlexW2153530137

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.