Evidence map›Paper›PMID 20709001›Full record

ArticleVaccine2010

Protective immune responses elicited by immunization with a chimeric blood-stage malaria vaccine persist but are not boosted by Plasmodium yoelii challenge infection.

James R Alaro, Michele M Lynch, James M Burns

Abstract read
In one paragraph

Article in Vaccine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Review
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  12. Evidence of purifying selection on merozoite surface protein 8 (MSP8) and 10 (MSP10) in Plasmodium spp.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2012
    Article
  13. Article
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

3 authors at 1 institution in 1 country.

James R AlaroCenter for Molecular Parasitology, Department of Microbiology and Immunology, Drexel University College of Medicine, 2900 Queen Lane, Philadelphia, PA 19129, USA.
Michele M Lynch
James M Burns
Drexel University · US

Funding

VACCINE INDUCED IMMUNE RESPONSES TO PLASMODIAL ANTIGENSR01AI035661 · NIAID · MCP HAHNEMANN UNIVERSITY · PI BURNS, JAMES MATTHEW · 2001 to 2012
$2.9M
VACCINE INDUCED IMMUNE RESPONSES TO PLASMODIAL ANTIGENSR29AI035661 · NIAID · MEHARRY MEDICAL COLLEGE · PI BURNS, JAMES MATTHEW · 1995 to 1999
–
NIAID NIH HHS AI035661NIAID NIH HHS R01 AI035661NIAID NIH HHS R29 AI035661
6 · The paper itself

Abstract

An efficacious malaria vaccine remains elusive despite concerted efforts. Using the Plasmodium yoelii murine model, we previously reported that immunization with the C-terminal 19 kDa domain of merozoite surface protein 1 (MSP1(19)) fused to full-length MSP8 protected against lethal P. yoelii 17XL, well beyond that achieved by single or combined immunizations with the component antigens. Here, we continue the evaluation of the chimeric PyMSP1/8 vaccine. We show that immunization with rPyMSP1/8 vaccine elicited an MSP8-restricted T cell response that was sufficient to provide help for both PyMSP1(19) and PyMSP8-specific B cells to produce high and sustained levels of protective antibodies. The enhanced efficacy of immunization with rPyMSP1/8, in comparison to a combined formulation of rPyMSP1(42) and rPyMSP8, was not due to improved conformation of protective B cell epitopes in the chimeric molecule. Unexpectedly, rPyMSP1/8 vaccine-induced antibody responses were not boosted by exposure to P. yoelii 17XL infected RBCs. However, rPyMSP1/8 immunized and infected mice mounted robust responses to a diverse set of blood-stage antigens. The data support the further development of an MSP1/8 chimeric vaccine but also suggest that vaccines that prime for responses to a diverse set of parasite proteins will be required to maximize vaccine efficacy.

Indexed as

AnimalsAntibodies, ProtozoanAntibody FormationAntigens, ProtozoanB-LymphocytesCell ProliferationEpitopes, B-LymphocyteMalariaMalaria VaccinesMaleMerozoite Surface Protein 1MiceMice, Inbred BALB CPlasmodium yoeliiProtozoan ProteinsRecombinant Fusion ProteinsAntibodies, ProtozoanAntigens, ProtozoanEpitopes, B-LymphocyteMalaria VaccinesMerozoite Surface Protein 1merozoite surface protein 8, PlasmodiumProtozoan ProteinsRecombinant Fusion Proteins

Identifiers

PMID20709001
PMCPMC2948860
OpenAlexW2028939384

What OpenQuestion holds

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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.