Evidence map›Paper›PMID 7664498›Full record

ArticleClinical and experimental immunology1995

A systematic study of neutrophil degranulation and respiratory burst in vitro by defined immune complexes.

W Zhang, J Voice, P J Lachmann

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.6field-weighted citation impact, top 34% 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

20 citing papers in PubMed, 46 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

3 authors at 1 institution in 1 country.

W ZhangMolecular Immunopathology Unit, MRC Centre, Cambridge, UK.
J Voice
P J Lachmann
MRC Epidemiology Unit · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Defined immune complexes (IC) were used to compare the effect of antibodies of different classes and subclasses on neutrophil respiratory burst and degranulation. IC were made from 5-iodo-4-hydroxy-3-nitrophenacetyl (NIP) conjugated to bovine serum albumin (BSA) and chimaeric mouse-human anti-NIP monoclonal antibodies including IgA2, IgE and all four IgG subclasses. The activation of neutrophils by IC depended on antibody class and subclass, on antigen epitope density, on antigen: antibody ratio and on the medium used. The ability to generate the respiratory burst showed a different pattern to the ability to give rise to degranulation. Compared with other IC, IgA2 IC provided the strongest stimulus for neutrophil activation. IgG1 IC, IgG2 IC and IgG4 IC activated neutrophils moderately or weakly IgG3 IC were unable to stimulate the respiratory burst, but could cause strong degranulation. IgE IC could hardly cause any neutrophil response. Neutrophil degranulation in response to IgG3 IC in serum-free medium or heat-inactivated serum was fast, and it quickly reached maximum. Degranulation caused by IgA IC was relatively slow, but gradually increased during incubation. The activity of IgG1 IC, IgG2 IC and IgG4 IC generated a respiratory burst increased with antibody excess and decreased with antigen excess. The activity of IgA2 IC, however, was not affected by change of antigen and antibody ratio. A specific role of serum, possibly due to complement, was found in enhancing degranulation, both temporally and quantitatively, by IgA2 IC.

Indexed as

AnimalsAntigen-Antibody ComplexCattleCells, CulturedHumansImmunoglobulin IsotypesMiceNeutrophil ActivationNeutrophilsRespiratory BurstAntigen-Antibody ComplexImmunoglobulin Isotypes

Identifiers

PMID7664498
PMCPMC1553244
OpenAlexW1989473075

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.