Evidence map›Paper›PMID 18706102›Full record

ArticleMalaria journal2008

Acquisition of naturally occurring antibody responses to recombinant protein domains of Plasmodium falciparum erythrocyte membrane protein 1.

Claire L Mackintosh, Zoe Christodoulou, Tabitha W Mwangi, Moses Kortok, Robert Pinches, Thomas N Williams, Kevin Marsh, Christopher I Newbold

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 26 citations in OpenAlex.

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  19. The impact of malaria parasitism: from corpuscles to communities.The Journal of clinical investigation · 2009
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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

8 authors at 2 institutions in 2 countries.

Claire L MackintoshKenya Medical Research Institute Centre for Geographic Medicine Research Coast, Kilifi District Hospital, Kilifi, Kenya. c.mackintosh@talk21.com
Zoe Christodoulou
Tabitha W Mwangi
Moses Kortok
Robert Pinches
Thomas N Williams
Kevin Marsh
Christopher I Newbold
John Radcliffe Hospital · GBKenya Medical Research Institute · KE

Funding

Wellcome Trust 076934
6 · The paper itself

Abstract

backgroundAntibodies targeting variant antigens expressed on the surface of Plasmodium falciparum infected erythrocytes have been associated with protection from clinical malaria. The precise target for these antibodies is unknown. The best characterized and most likely target is the erythrocyte surface-expressed variant protein family Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1).

methodsUsing recombinant proteins corresponding to five domains of the expressed A4 var gene, A4 PfEMP1, the naturally occurring antibody response was assessed, by ELISA, to each domain in serum samples obtained from individuals resident in two communities of differing malaria transmission intensity on the Kenyan coast. Using flow cytometry, the correlation in individual responses to each domain with responses to intact A4-infected erythrocytes expressing A4 PfEMP1 on their surface as well as responses to two alternative parasite clones and one clinical isolate was assessed.

resultsMarked variability in the prevalence of responses between each domain and between each transmission area was observed, as wasa strong correlation between age and reactivity with some but not all domains. Individual responses to each domain varied strikingly, with some individuals showing reactivity to all domains and others with no reactivity to any, this was apparent at all age groups. Evidence for possible cross-reactivity in responses to the domain DBL4gamma was found.

conclusionIndividuals acquire antibodies to surface expressed domains of a highly variant protein. The finding of potential cross-reactivity in responses to one of these domains is an important initial finding in the consideration of potential vaccine targets.

Indexed as

AdolescentAdultAgedAged, 80 and overAge FactorsAnimalsAntibodies, ProtozoanChildChild, PreschoolCross ReactionsEnzyme-Linked Immunosorbent AssayErythrocytesFlow CytometryGeographyHumansInfantAntibodies, Protozoanerythrocyte membrane protein 1, Plasmodium falciparumProtozoan ProteinsRecombinant Proteins

Identifiers

PMID18706102
PMCPMC2533674
OpenAlexW2116105269

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.