Evidence map›Paper›PMID 22649493›Full record

ArticlePloS one2012

Influence of HLA-DRB1 and HLA-DQB1 alleles on IgG antibody response to the P. vivax MSP-1, MSP-3α and MSP-9 in individuals from Brazilian endemic area.

Josué C Lima-Junior, Rodrigo N Rodrigues-da-Silva, Dalma M Banic, Jianlin Jiang, Balwan Singh, Gustavo M Fabrício-Silva, Luís C S Porto, Esmeralda V S Meyer, Alberto Moreno, Maurício M Rodrigues and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
5.0field-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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  13. TheFrontiers in cellular and infection microbiology · 2018
    Article
  14. Article
  15. Synthetic Antigens Derived fromThe American journal of tropical medicine and hygiene · 2017
    Article
  16. Review
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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

13 authors at 5 institutions in 2 countries.

Josué C Lima-JuniorLaboratory of Immunoparasitology, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil.
Rodrigo N Rodrigues-da-Silva
Dalma M Banic
Jianlin Jiang
Balwan Singh
Gustavo M Fabrício-Silva
Luís C S Porto
Esmeralda V S Meyer
Alberto Moreno
Maurício M Rodrigues
John W Barnwell
Mary R Galinski
Joseli de Oliveira-Ferreira
Fundação Oswaldo Cruz · BREmory University · USUniversidade do Estado do Rio de Janeiro · BRNational Center for Infectious Diseases · USUniversidade Federal de São Paulo · BR

Funding

YNPRC NHP CLINICAL MEDICINE RESIDENCY PROGRAM - SUPPLEMENTP51RR000165 · NCRR · EMORY UNIVERSITY · PI ALTMAN, JOHN DAVID · 1985 to 2011
$114.0M
NCRR NIH HHS P51 RR000165NCRR NIH HHS RR00165NIAID NIH HHS R01 AI0555994
6 · The paper itself

Abstract

backgroundThe antibody response generated during malaria infections is of particular interest, since the production of specific IgG antibodies is required for acquisition of clinical immunity. However, variations in antibody responses could result from genetic polymorphism of the HLA class II genes. Given the increasing focus on the development of subunit vaccines, studies of the influence of class II alleles on the immune response in ethnically diverse populations is important, prior to the implementation of vaccine trials. METHODS AND

findingsIn this study, we evaluated the influence of HLA-DRB1* and -DQB1* allelic groups on the naturally acquired humoral response from Brazilian Amazon individuals (n = 276) against P. vivax Merozoite Surface Protein-1 (MSP-1), MSP-3α and MSP-9 recombinant proteins. Our results provide information concerning these three P. vivax antigens, relevant for their role as immunogenic surface proteins and vaccine candidates. Firstly, the studied population was heterogeneous presenting 13 HLA-DRB1* and 5 DQB1* allelic groups with a higher frequency of HLA-DRB1*04 and HLA-DQB1*03. The proteins studied were broadly immunogenic in a naturally exposed population with high frequency of IgG antibodies against PvMSP1-19 (86.7%), PvMSP-3 (77%) and PvMSP-9 (76%). Moreover, HLA-DRB1*04 and HLA-DQB1*03 alleles were associated with a higher frequency of IgG immune responses against five out of nine antigens tested, while HLA-DRB1*01 was associated with a high frequency of non-responders to repetitive regions of PvMSP-9, and the DRB1*16 allelic group with the low frequency of responders to PvMSP3 full length recombinant protein.

conclusionsHLA-DRB1*04 alleles were associated with high frequency of antibody responses to five out of nine recombinant proteins tested in Rondonia State, Brazil. These features could increase the success rate of future clinical trials based on these vaccine candidates.

Indexed as

AdolescentAdultAgedAged, 80 and overAntigens, ProtozoanBrazilChildEthnicityGene FrequencyHLA-DQ beta-ChainsHLA-DRB1 ChainsHumansImmunoglobulin GInterviews as TopicMalaria, VivaxMembrane ProteinsAntigens, ProtozoanHLA-DQB1 antigenHLA-DQ beta-ChainsHLA-DRB1 ChainsImmunoglobulin GMembrane ProteinsMerozoite Surface Protein 1merozoite surface protein 3, Plasmodiummerozoite surface protein 9, PlasmodiumProtozoan ProteinsRecombinant Proteins

Identifiers

PMID22649493
PMCPMC3359319
OpenAlexW2056140371

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.