Evidence map›Paper›PMID 12757619›Full record

ArticleImmunology2003

Hyporesponsiveness of murine B lymphocytes exposed to the filarial nematode secreted product ES-62 in vivo.

Emma H Wilson, Maureen R Deehan, Elad Katz, Kirsty S Brown, Katrina M Houston, John O'Grady, Margaret M Harnett, William Harnett

Open access · bronzeAbstract read
In one paragraph

Article in Immunology, 2003. 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
2.6field-weighted citation impact, top 11% 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, 51 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Emma H WilsonDepartment of Immunology, University of Strathclyde, Glasgow, UK.
Maureen R Deehan
Elad Katz
Kirsty S Brown
Katrina M Houston
John O'Grady
Margaret M Harnett
William Harnett
University of Glasgow · GBUniversity of Strathclyde · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

ES-62 is a phosphorylcholine (PC)-containing glycoprotein secreted by filarial nematodes, parasites of vertebrates including humans. We have previously demonstrated that pre-exposure to this molecule in vitro interferes with subsequent B-cell receptor (BCR)-dependent activation of murine splenic B lymphocytes. To investigate the significance of this during filarial nematode infection, we now employ mice exposed to ES-62, at concentrations equivalent to those found for PC-containing molecules in the bloodstream of parasitized humans, via release from implanted osmotic pumps. Using this approach, we reveal that splenic and lymph node mononuclear cells, and also purified splenic B cells recovered from these mice have reduced ability ex vivo to proliferate in response to BCR ligation. The effect on BCR-induced proliferation was further investigated with respect to elucidating the mechanism of action of the parasite product and was shown to be associated with impaired signal transduction affecting the ErkMAPkinase pathway. Also, it was found that ES-62 did not act by promoting apoptosis or by priming for apoptosis following subsequent stimulation, but rather, appeared to render cells hyporesponsive to stimulation. ES-62 is thus shown for the first time to be a potent modulator of B lymphocyte function in vivo at a concentration relevant to natural filarial nematode infection. This finding considerably strengthens the idea that ES-62 plays a role in evasion of the immune response during parasitism.

Indexed as

Immune ToleranceAnimalsApoptosisB-LymphocytesCell DivisionCells, CulturedFilariasisHelminth ProteinsImmunoglobulin Fab FragmentsImmunoglobulin MInfusion Pumps, ImplantableLipopolysaccharidesLymphocyte ActivationMaleMAP Kinase Signaling SystemMiceES-62 protein, Acanthocheilonema viteaeHelminth ProteinsImmunoglobulin Fab FragmentsImmunoglobulin MLipopolysaccharidesReceptors, Antigen, B-Cell

Identifiers

PMID12757619
PMCPMC1782967
OpenAlexW1969122689

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.