Evidence map›Paper›PMID 18523022›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Naturally acquired Duffy-binding protein-specific binding inhibitory antibodies confer protection from blood-stage Plasmodium vivax infection.

Christopher L King, Pascal Michon, Ahmad Rushdi Shakri, Alexandra Marcotty, Danielle Stanisic, Peter A Zimmerman, Jennifer L Cole-Tobian, Ivo Mueller, Chetan E Chitnis

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed, 2 pooled it
13.9field-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

105 citing papers in PubMed, 2 syntheses or guidelines pooled it, 162 citations in OpenAlex.

  1. Pooled it
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  17. Vaccination withScience translational medicine · 2023
    Article
  18. Article
  19. Article
  20. Naturally-acquired and Vaccine-induced Human Monoclonal Antibodies tobioRxiv : the preprint server for biology · 2023
    Article

45 more citing papers are in PubMed but not listed here.

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

9 authors at 6 institutions in 5 countries.

Christopher L KingCase Western Reserve University Center for Global Health and Diseases, Cleveland, OH 44106.
Pascal Michon
Ahmad Rushdi Shakri
Alexandra Marcotty
Danielle Stanisic
Peter A Zimmerman
Jennifer L Cole-Tobian
Ivo Mueller
Chetan E Chitnis
Center for Global Health · USPapua New Guinea Institute of Medical Research · PGCase Western Reserve University · USInternational Centre for Genetic Engineering and Biotechnology · INNational Center for Genetic Engineering and Biotechnology · THWalter and Eliza Hall Institute of Medical Research · AU

Funding

PAPUA NEW GUINEAN DUFFY NEGATIVITY AND VIVAX MALARIAR01AI046919 · NIAID · CASE WESTERN RESERVE UNIVERSITY · PI ZIMMERMAN, PETER A. · 2001 to 2005
$2.4M
NIAID NIH HHS AI46919NIAID NIH HHS R01 AI046919
6 · The paper itself

Abstract

Individuals residing in malaria-endemic regions acquire protective immunity after repeated infection with malaria parasites; however, mechanisms of protective immunity and their immune correlates are poorly understood. Blood-stage infection with Plasmodium vivax depends completely on interaction of P. vivax Duffy-binding protein (PvDBP) with the Duffy antigen on host erythrocytes. Here, we performed a prospective cohort treatment/reinfection study of children (5-14 years) residing in a P. vivax-endemic region of Papua New Guinea (PNG) in which children were cleared of blood-stage infection and then examined biweekly for reinfection for 25 weeks. To test the hypothesis that naturally acquired binding inhibitory antibodies (BIAbs) targeting PvDBP region II (PvDBPII) provide protection against P. vivax infection, we used a quantitative receptor-binding assay to distinguish between antibodies that merely recognize PvDBP and those that inhibit binding to Duffy. The presence of high-level BIAbs (>90% inhibition of PvDBPII-Duffy binding, n = 18) before treatment was associated with delayed time to P. vivax reinfection diagnosed by light microscopy (P = 0.02), 55% reduced risk of P. vivax reinfection (Hazard's ratio = 0.45, P = 0.04), and 48% reduction in geometric mean P. vivax parasitemia (P < 0.001) when compared with children with low-level BIAbs (n = 148). Further, we found that stable, high-level BIAbs displayed strain-transcending inhibition by reducing reinfection with similar efficiency of PNG P. vivax strains characterized by six diverse PvDBPII haplotypes. These observations demonstrate a functional correlate of protective immunity in vivo and provide support for developing a vaccine against P. vivax malaria based on PvDBPII.

Indexed as

AnimalsAntibodies, BlockingAntibodies, ProtozoanAntigens, ProtozoanChildChild, PreschoolCohort StudiesEnzyme-Linked Immunosorbent AssayFemaleHumansMalaria VaccinesMalaria, VivaxMaleNew GuineaPlasmodium vivaxProspective StudiesAntibodies, BlockingAntibodies, ProtozoanAntigens, ProtozoanDuffy antigen binding protein, PlasmodiumMalaria VaccinesProtozoan ProteinsReceptors, Cell Surface

Identifiers

PMID18523022
PMCPMC2448842
OpenAlexW1992816019

What OpenQuestion holds

Textmetadata
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.