Evidence map›Paper›PMID 11705943›Full record

ArticleInfection and immunity2001

Pertussis toxin and lipopolysaccharide influence phagocytosis of Bordetella pertussis by human monocytes.

L M Schaeffer, A A Weiss

Open access · greenAbstract 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 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Natural History and Ecology of Interactions BetweenFrontiers in cellular and infection microbiology · 2022
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  10. Cyclic AMP: master regulator of innate immune cell function.American journal of respiratory cell and molecular biology · 2008
    Review
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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

2 authors at 1 institution in 1 country.

L M SchaefferDepartment of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati, Cincinnati, Ohio 45267, USA.
A A Weiss
University of Cincinnati · US

Funding

HUMAN SERUM AND PROTECTION AGAINST BORDETELLA PERTUSSISR01AI045715 · NIAID · UNIVERSITY OF CINCINNATI · PI WEISS, ALISON A. · 2000 to 2004
$1.3M
NIAID NIH HHS R01 AI045715NIAID NIH HHS R01 AI45715
6 · The paper itself

Abstract

The potential of human monocytes to mediate the clearance of Bordetella pertussis infection was examined. Bacteria expressing green fluorescent protein were incubated with adherent peripheral blood monocytes, and phagocytosis was quantified by using fluorescence microscopy. Monocytes internalized only a small percentage of the adherent bacteria. Surface-associated Bvg-regulated virulence factors, including adenylate cyclase toxin and filamentous hemagglutinin, did not affect attachment or phagocytosis. However, 1-h pretreatment with purified pertussis toxin inhibited the ability of monocytes to internalize wild-type bacteria. Mutations affecting the terminal trisaccharide of lipopolysaccharide resulted in reduced internalization without affecting adherence of bacteria to monocytes. Opsonization with human serum played only a modest role in promoting phagocytosis. The viability of internalized bacteria was determined by colony counts following treatment with polymyxin B and gentamicin. Less than 1% of internalized bacteria remained viable. These results suggest that pertussis toxin plays a role in the evasion of monocyte phagocytosis and that these cells represent a potential mediator of the clearance of B. pertussis infection.

Indexed as

Adenylate Cyclase ToxinPertussis ToxinBacterial AdhesionBordetella pertussisHumansImmunity, InnateLipopolysaccharidesMonocytesPhagocytosisVirulence Factors, BordetellaAdenylate Cyclase ToxinLipopolysaccharidesPertussis ToxinVirulence Factors, Bordetella

Identifiers

PMID11705943
PMCPMC98857
OpenAlexW2133015918

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.