Evidence map›Paper›PMID 19712767›Full record

Trial reportVaccine2009

The TLR9 agonist CpG fails to enhance the acquisition of Plasmodium falciparum-specific memory B cells in semi-immune adults in Mali.

Boubacar Traore, Younoussou Koné, Safiatou Doumbo, Didier Doumtabé, Abdramane Traoré, Peter D Crompton, Marko Mircetic, Chiung-Yu Huang, Kassoum Kayentao, Alassane Dicko and 7 more

Abstract readClinical Trial, Phase IRandomized Controlled Trial
In one paragraph

Trial report in Vaccine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
7.2field-weighted citation impact, top 3% 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

35 citing papers in PubMed, 49 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Article
  5. Humoral Immune Responses toInfection and drug resistance · 2023
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Vaccines · 2021
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

17 authors at 3 institutions in 2 countries.

Boubacar TraoreMalaria Research and Training Center, Faculty of Medicine, Pharmacy and Odonto-Stomatology, Department of Epidemiology of Parasitic Diseases-BP 1805 Bamako, Mali. Bouba.traore@mrtcbko.org
Younoussou Koné
Safiatou Doumbo
Didier Doumtabé
Abdramane Traoré
Peter D Crompton
Marko Mircetic
Chiung-Yu Huang
Kassoum Kayentao
Alassane Dicko
Issaka Sagara
Ruth D Ellis
Kazutoyo Miura
Agnes Guindo
Louis H Miller
Ogobara K Doumbo
Susan K Pierce
University of Bamako · MLNational Institutes of Health · USNational Institute of Allergy and Infectious Diseases · US

Funding

Mali International Center for Excellence in Research: Malaria Clinical ResearchZIAAI001056 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2009 to 2024
$43.1M
Mali International Center for Excellence in Research: Malaria immunologyZIAAI001064 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI PIERCE, SUSAN · 2009 to 2025
$25.1M
Malaria Parasite Receptors And Host Cell LigandsZIAAI000241 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MILLER, LOUIS · 2009 to 2025
$15.3M
Malaria Vaccine: BSAMZIAAI001003 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2009 to 2012
$5.3M
Malaria Vaccine: AMA1-C1ZIAAI001001 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2009 to 2012
$5.1M
The Generation and Maintenance of Human Memory B Cells Z01AI000949 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI PIERCE, SUSAN · 2004 to 2008
$1.8M
Malaria Vaccine: AMA1-C2ZIAAI001002 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MILLER, LOUIS · 2009 to 2009
$1.6M
The Generation and Maintenance of Human Memory B CellsZIAAI000949 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI PIERCE, SUSAN · 2009 to 2009
$822k
Intramural NIH HHS Z01 AI000949
6 · The paper itself

Abstract

Antibodies play a key role in controlling blood stage malaria infections, and an effective blood stage malaria vaccine will likely require that it induce vaccine-specific memory B cells (MBCs). Our previous studies showed that the addition of the TLR9 agonist CpG to Plasmodium falciparum protein subunit vaccines greatly increased their efficacy in inducing MBCs in nonimmune U.S. volunteers. Here we show that in contrast the same CpG-containing malaria vaccine did not enhance the acquisition of MBCs in semi-immune adults living in Mali. Understanding the molecular basis of this apparent refractoriness to TLR9 agonist will be of significant interest in vaccine design.

Indexed as

Immunologic MemoryAdjuvants, ImmunologicAdultAntibodies, ProtozoanB-LymphocytesFlow CytometryHumansMalaria, FalciparumMalaria VaccinesMaliOligodeoxyribonucleotidesPlasmodium falciparumTime FactorsToll-Like Receptor 9Vaccines, SubunitAdjuvants, ImmunologicAntibodies, ProtozoanMalaria VaccinesOligodeoxyribonucleotidesProMuneTLR9 protein, humanToll-Like Receptor 9Vaccines, Subunit

Identifiers

PMID19712767
PMCPMC2788035
OpenAlexW2078886053

What OpenQuestion holds

Textmetadata
LicenceTDM
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.