Evidence map›Paper›PMID 33661303›Full record

ArticleThe Journal of experimental medicine2021

Plasmodium falciparum-specific IgM B cells dominate in children, expand with malaria, and produce functional IgM.

Christine S Hopp, Padmapriya Sekar, Ababacar Diouf, Kazutoyo Miura, Kristin Boswell, Jeff Skinner, Christopher M Tipton, Mary E Peterson, Michael J Chambers, Sarah Andrews and 14 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
12.0field-weighted citation impact, top 1% 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

47 citing papers in PubMed, 64 citations in OpenAlex.

  1. Antibody Responses to the ConservedPathogens (Basel, Switzerland) · 2026
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  4. The N-terminal region of malaria vaccine candidatebioRxiv : the preprint server for biology · 2025
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  11. Review
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  14. Review
  15. Differences in phenotype between long-lived memory B cells againstbioRxiv : the preprint server for biology · 2024
    Article
  16. Article
  17. Review
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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

24 authors at 4 institutions in 3 countries.

Christine S HoppMalaria Infection Biology and Immunity Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Padmapriya SekarMolecular and Cellular Immunology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Ababacar DioufLaboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Kazutoyo MiuraLaboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Kristin BoswellVaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Jeff SkinnerMalaria Infection Biology and Immunity Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Christopher M TiptonLowance Center for Human Immunology, Division of Rheumatology, Department of Medicine, Emory University School of Medicine, Atlanta, GA.
Mary E PetersonMalaria Infection Biology and Immunity Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Michael J ChambersVaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Sarah AndrewsVaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Jinghua LuStructural Immunology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Joshua TanAntibody Biology Unit, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Shanping LiMalaria Infection Biology and Immunity Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Safiatou DoumboMalaria Research and Training Centre, Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, University of Sciences, Technique and Technology of Bamako, Bamako, Mali.
Kassoum KayentaoMalaria Research and Training Centre, Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, University of Sciences, Technique and Technology of Bamako, Bamako, Mali.
Aissata OngoibaMalaria Research and Training Centre, Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, University of Sciences, Technique and Technology of Bamako, Bamako, Mali.
Boubacar TraoreMalaria Research and Training Centre, Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, University of Sciences, Technique and Technology of Bamako, Bamako, Mali.
Silvia PortugalMax Planck Institute for Infection Biology, Berlin, Germany.
Peter D SunStructural Immunology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Carole LongLaboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Richard A KoupVaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Eric O LongMolecular and Cellular Immunology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
Adrian B McDermottVaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD.
Peter D CromptonMalaria Infection Biology and Immunity Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD.
National Institutes of Health · USUniversity of Bamako · MLEmory University · USMax Planck Institute for Infection Biology · DE

Funding

Vaccine Immunology ProgramZIAAI005143 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI KOUP, RICHARD A · 2019 to 2025
$51.8M
Mechanisms of naturally-acquired immunity to malaria and clinical trials of anti-malaria monoclonal antibodiesZIAAI001155 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CROMPTON, PETER · 2011 to 2025
$30.9M
Testing of Blood Samples for Immune Response and Vaccine ResearchZIAAI005073 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI KOUP, RICHARD A · 2009 to 2025
$23.4M
Host Immune Responses to Antigens of Malaria ParasitesZIAAI001020 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI LONG, CAROLE · 2009 to 2025
$13.6M
Wellcome Trust
6 · The paper itself

Abstract

IgG antibodies play a role in malaria immunity, but whether and how IgM protects from malaria and the biology of Plasmodium falciparum (Pf)-specific IgM B cells is unclear. In a Mali cohort spanning infants to adults, we conducted longitudinal analyses of Pf- and influenza-specific B cells. We found that Pf-specific memory B cells (MBCs) are disproportionally IgM+ and only gradually shift to IgG+ with age, in contrast to influenza-specific MBCs that are predominantly IgG+ from infancy to adulthood. B cell receptor analysis showed Pf-specific IgM MBCs are somatically hypermutated at levels comparable to influenza-specific IgG B cells. During acute malaria, Pf-specific IgM B cells expand and upregulate activation/costimulatory markers. Finally, plasma IgM was comparable to IgG in inhibiting Pf growth and enhancing phagocytosis of Pf by monocytes in vitro. Thus, somatically hypermutated Pf-specific IgM MBCs dominate in children, expand and activate during malaria, and produce IgM that inhibits Pf through neutralization and opsonic phagocytosis.

Indexed as

AdolescentAdultAntibodies, ProtozoanAntigens, ProtozoanB-LymphocytesChildChild, PreschoolFemaleHumansImmunoglobulin GImmunoglobulin MImmunologic MemoryInfantInfant, NewbornLongitudinal StudiesMalariaAntibodies, ProtozoanAntigens, ProtozoanImmunoglobulin GImmunoglobulin M

Identifiers

PMID33661303
PMCPMC7938365
OpenAlexW3134761849

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.