Evidence map›Paper›PMID 7559917›Full record

ArticleJournal of clinical immunology1995

Staphylococcus aureus Cowan I-induced human immunoglobulin responses: preferential IgM rheumatoid factor production and VH3 mRNA expression by protein A-binding B cells.

L M Kozlowski, S R Kunning, Y Zheng, L M Wheatley, A I Levinson

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Article in Journal of clinical immunology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
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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

5 authors.

L M KozlowskiAllergy-Immunology Department, University of Pennsylvania School of Medicine, Philadelphia 19104, USA.
S R Kunning
Y Zheng
L M Wheatley
A I Levinson

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Protein A (PA), a cell wall component of SAC, activates human B cells by cross-linking the Fabs of membrane immunoglobulins. Recent data indicate that PA binds only to Fabs that use VH3 heavy chains, and thus it has been designated as a B-cell superantigen. We previously reported that Staphylococcus aureus Cowan I (SAC)-induced IgM rheumatoid factor (RF) by human PBMC was mediated by PA. Therefore, we sought to determine if SAC-induced IgMRF production was confined to PA-binding B cells and if these B cells were enriched for the expression of VH3 heavy chains. We observed that the elicitation of IgMRF in response to SAC was limited to a subset of B cells that bind PA and that this subset was enriched for VH3 mRNA expression. Taken together, these results suggest that IgMRFs produced in response to SAC are enriched for usage of VH3 heavy chains. Thus, this SAC-induced autoantibody response appears to represent a new B-cell superantigenic property of PA.

Indexed as

AdultAntibodies, BacterialBase SequenceBinding Sites, AntibodyB-Lymphocyte SubsetsHumansImmunoglobulin Heavy ChainsImmunoglobulin MImmunoglobulin Variable RegionMiddle AgedMolecular Sequence DataRheumatoid FactorRNA, MessengerStaphylococcal Protein AAntibodies, BacterialImmunoglobulin Heavy ChainsImmunoglobulin MImmunoglobulin Variable RegionRheumatoid FactorRNA, MessengerStaphylococcal Protein A

Identifiers

PMID7559917

What OpenQuestion holds

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Registered trials

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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.