Evidence map›Paper›PMID 32222961›Full record

ArticleEuropean journal of immunology2020

Malaria exposure drives both cognate and bystander human B cells to adopt an atypical phenotype.

Racheal Aye, Henry J Sutton, Eunice W Nduati, Oscar Kai, Jedida Mwacharo, Jennifer Musyoki, Edward Otieno, Juliana Wambua, Philip Bejon, Ian A Cockburn and 1 more

Abstract read
In one paragraph

Article in European journal of immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. The development and function of CD11cFrontiers in immunology · 2022
    Review
  11. Review
  12. Article
  13. Article
  14. Properties and Roles of γδT Cells inFrontiers in cellular and infection microbiology · 2021
    Article
  15. Review
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

11 authors.

Racheal AyeDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.
Henry J SuttonDepartment of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australia.
Eunice W NduatiDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.
Oscar KaiDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.
Jedida MwacharoDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.
Jennifer MusyokiDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.
Edward OtienoDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.
Juliana WambuaDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.
Philip BejonDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.ORCID 0000-0002-2135-7549
Ian A CockburnDepartment of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australia.ORCID 0000-0001-8220-9294
Francis M NdunguDepartment of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.ORCID 0000-0002-8977-0030

Funding

EPA EP-C-15-003Medical Research Council MR/P020321/1NHMRC project grant GNT1158404Wellcome Trust 203077Wellcome Trust DEL-15-003
6 · The paper itself

Abstract

Atypical memory B cells (aMBCs) are found in elevated numbers in individuals exposed to malaria. A key question is whether malaria induces aMBCs as a result of exposure to Ag, or non-Ag-specific mechanisms. We identified Plasmodium and bystander tetanus toxoid (TT) specific B cells in individuals from areas of previous and persistent exposure to malaria using tetramers. Malaria-specific B cells were more likely to be aMBCs than TT-specific B cells. However, TT-specific B cells from individuals with continuous exposure to malaria were more likely to be aMBCs than TT-specific B cells in individuals from areas where transmission has ceased. Finally, sequences of BCRs specific for a blood stage malaria-Ag were more highly mutated than sequences from TT-specific BCRs and under strong negative selection, indicative of ongoing antigenic pressure. Our data suggest both persistent Ag exposure and the inflammatory environment shape the B-cell response to malaria and bystander Ags.

Indexed as

Antigens, ProtozoanB-LymphocytesBystander EffectHumansImmunologic MemoryMalariaPhenotypePlasmodium falciparumTetanus ToxoidAntigens, ProtozoanTetanus ToxoidB-cell memoryimmunological memorymalariaPlasmodiumtetanus toxoid

Identifiers

PMID32222961
PMCPMC7611263

What OpenQuestion holds

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LicenceCC BY
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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.