Evidence map›Paper›PMID 24354660›Full record

ArticleMalaria journal2013

Immunogenicity of bacterial-expressed recombinant Plasmodium knowlesi merozoite surface protein-142 (MSP-142).

Fei Wen Cheong, Mun Yik Fong, Yee Ling Lau, Rohela Mahmud

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

10 citing papers in PubMed, 22 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Fei Wen Cheong
Mun Yik FongDepartment of Parasitology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia. fongmy@um.edu.my.
Yee Ling Lau
Rohela Mahmud
University of Malaya · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPlasmodium knowlesi is the fifth Plasmodium species that can infect humans. The Plasmodium merozoite surface protein-1(42) (MSP-1(42)) is a potential candidate for malaria vaccine. However, limited studies have focused on P. knowlesi MSP-1(42).

methodsA ~42 kDa recombinant P. knowlesi MSP-1(42) (pkMSP-1(42)) was expressed using an Escherichia coli system. The purified pkMSP-1(42) was evaluated with malaria and non-malaria human patient sera (n = 189) using Western blots and ELISA. The immunogenicity of pkMSP-1(42) was evaluated in mouse model.

resultsThe purified pkMSP-1(42) had a sensitivity of 91.0% for detection of human malaria in both assays. Specificity was 97.5 and 92.6% in Western blots and ELISA, respectively. Levels of cytokine interferon-gamma, interleukin-2, interleukin-4, and interleukin-10 significantly increased in pkMSP-1(42)-immunized mice as compared to the negative control mice. pkMSP-1(42)-raised antibody had high endpoint titres, and the IgG isotype distribution was IgG1 > IgG2b > IgG3 > IgG2a.

conclusionspkMSP-1(42) was highly immunogenic and able to detect human malaria. Hence, pkMSP-1(42) would be a useful candidate for malaria vaccine development and seroprevalence studies.

Indexed as

AnimalsAntibodies, ProtozoanAntigens, ProtozoanBlotting, WesternCloning, MolecularEnzyme-Linked Immunosorbent AssayEscherichia coliFemaleGene ExpressionHumansMalaria VaccinesMembrane ProteinsMerozoitesMiceMice, Inbred BALB CPlasmodium knowlesiAntibodies, ProtozoanAntigens, ProtozoanMalaria VaccinesMembrane ProteinsRecombinant Proteins

Identifiers

PMID24354660
PMCPMC3878241
OpenAlexW2108808790

What OpenQuestion holds

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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.