Evidence map›Paper›PMID 28878766›Full record

ArticleFrontiers in immunology2017

Chronic Exposure to Malaria Is Associated with Inhibitory and Activation Markers on Atypical Memory B Cells and Marginal Zone-Like B Cells.

Itziar Ubillos, Joseph J Campo, Pilar Requena, Maria Ome-Kaius, Sarah Hanieh, Honor Rose, Paula Samol, Diana Barrios, Alfons Jiménez, Azucena Bardají and 5 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 48 citations in OpenAlex.

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  9. Immune Control in RepeatedOpen forum infectious diseases · 2024
    Article
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  12. Review
  13. Comprehensive phenotyping of human peripheral blood B lymphocytes in healthy conditions.Cytometry. Part A : the journal of the International Society for Analytical Cytology · 2022
    Review
  14. CD21Frontiers in pediatrics · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 6 institutions in 4 countries.

Itziar UbillosISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Joseph J CampoISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Pilar RequenaISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Maria Ome-KaiusPapua New Guinea Institute of Medical Research, Madang, Papua New Guinea.
Sarah HaniehPapua New Guinea Institute of Medical Research, Madang, Papua New Guinea.
Honor RosePapua New Guinea Institute of Medical Research, Madang, Papua New Guinea.
Paula SamolPapua New Guinea Institute of Medical Research, Madang, Papua New Guinea.
Diana BarriosISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Alfons JiménezISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Azucena BardajíISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Ivo MuellerPapua New Guinea Institute of Medical Research, Madang, Papua New Guinea.
Clara MenéndezISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Stephen RogersonUniversity of Melbourne, Melbourne, VIC, Australia.
Gemma MoncunillISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Carlota DobañoISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic-Universitat de Barcelona, Barcelona, Spain.
Universitat de Barcelona · ESPapua New Guinea Institute of Medical Research · PGBarcelona Institute for Global Health · ESUniversidad de Granada · ESUniversity of Melbourne · AUWalter and Eliza Hall Institute of Medical Research · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In persistent infections that are accompanied by chronic immune activation, such as human immunodeficiency virus, hepatitis C virus, and malaria, there is an increased frequency of a phenotypically distinct subset of memory B cells lacking the classic memory marker CD27 and showing a reduced capacity to produce antibodies. However, critical knowledge gaps remain on specific B cell changes and immune adaptation in chronic infections. We hypothesized that expansion of atypical memory B cells (aMBCs) and reduction of activated peripheral marginal zone (MZ)-like B cells in constantly exposed individuals might be accompanied by phenotypic changes that would confer a tolerogenic profile, helping to establish tolerance to infections. To better understand malaria-associated phenotypic abnormalities on B cells, we analyzed peripheral blood mononuclear cells from 55 pregnant women living in a malaria-endemic area of Papua Nueva Guinea and 9 Spanish malaria-naïve individuals using four 11-color flow cytometry panels. We assessed the expression of markers of B cell specificity (IgG and IgM), activation (CD40, CD80, CD86, b220, TACI, and CD150), inhibition (PD1, CD95, and CD71), and migration (CCR3, CXCR3, and CD62l). We found higher frequencies of active and resting aMBC and marked reduction of MZ-like B cells, although changes in absolute cell counts could not be assessed. Highly exposed women had higher PD1

Indexed as

B cellschronic infectionhost–malaria interactionmalariatolerance

Identifiers

PMID28878766
PMCPMC5573441
OpenAlexW2745622075

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.