Evidence map›Paper›PMID 17650180›Full record

ArticleParasite immunology2007

Naturally acquired antibodies to polymorphic and conserved epitopes of Plasmodium falciparum merozoite surface protein 3.

F H A Osier, S D Polley, T Mwangi, B Lowe, D J Conway, K Marsh

Open access · hybridAbstract read
In one paragraph

Article in Parasite immunology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 2 pooled it
5.5field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 2 syntheses or guidelines pooled it, 58 citations in OpenAlex.

  1. Pooled it
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  9. Antibody Correlates of Protection from ClinicalThe American journal of tropical medicine and hygiene · 2020
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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

6 authors at 2 institutions in 3 countries.

F H A OsierLondon School of Hygiene and Tropical Medicine, Keppel Street, London, UK. fosier@kilifi.kemri-wellcome.org
S D Polley
T Mwangi
B Lowe
D J Conway
K Marsh
Kenya Medical Research Institute · KEUniversity of London · GB

Funding

Medical Research Council MC_U190081993Wellcome Trust
6 · The paper itself

Abstract

Many studies on the role of merozoite surface protein 3 (MSP3) in immunity against malaria have focused on a conserved section of MSP3. New evidence suggests that polymorphic sequences within MSP3 are under immune selection. We report a detailed analysis of naturally-acquired antibodies to allele-specific and conserved parts of MSP3 in a Kenyan cohort. Indirect and competition ELISA to heterologous recombinant MSP3 proteins were used for antibody assays, and parasites were genotyped for msp3 alleles. Antibody reactivity to allele-specific and conserved epitopes of MSP3 was heterogeneous between individuals. Overall, the prevalence of allele-specific antibody reactivity was significantly higher (3D7-specific 54%, K1-specific 41%) than that to a recombinant protein representing a conserved portion of C-terminal MSP3 (24%, P < 0.01). The most abundant IgG subclass was IgG3, followed by IgG1. Allele-specific reactivity to the K1-type of MSP3 was associated with a lower risk of clinical malaria episodes during a 6-month follow-up in individuals who were parasitized at the start of the malaria transmission season (Relative risk 0.41 with 95% confidence interval 0.20-0.81, P = 0.011). The potential importance of allele-specific immunity to MSP3 should be considered in addition to immunity to conserved epitopes, in the development of an MSP3 malaria vaccine.

Indexed as

AllelesAnimalsAntibodies, ProtozoanAntigens, ProtozoanCohort StudiesEnzyme-Linked Immunosorbent AssayEpitopesHumansImmunoglobulin GKenyaLongitudinal StudiesMalaria, FalciparumPlasmodium falciparumProtozoan ProteinsRecombinant Fusion ProteinsAntibodies, ProtozoanAntigens, ProtozoanEpitopesImmunoglobulin Gmerozoite surface protein 3, PlasmodiumProtozoan ProteinsRecombinant Fusion Proteins

Identifiers

PMID17650180
PMCPMC1976398
OpenAlexW2144996971

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.