Evidence map›Paper›PMID 27245410›Full record

ArticleInfection and immunity2016

Chemically Attenuated Blood-Stage Plasmodium yoelii Parasites Induce Long-Lived and Strain-Transcending Protection.

Amber I Raja, Yeping Cai, Jennifer M Reiman, Penny Groves, Sumana Chakravarty, Virginia McPhun, Denise L Doolan, Ian Cockburn, Stephen L Hoffman, Danielle I Stanisic and 1 more

Abstract read
In one paragraph

Article in Infection and immunity, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Trial
  2. An mRNA-lipid nanoparticle vaccine targeting theMolecular therapy. Nucleic acids · 2026
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  6. Sterile protection againstLife science alliance · 2024
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  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
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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

11 authors.

Amber I RajaInstitute for Glycomics, Griffith University, Gold Coast, Queensland, Australia.
Yeping CaiJohn Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory, Australia.
Jennifer M ReimanInstitute for Glycomics, Griffith University, Gold Coast, Queensland, Australia.
Penny GrovesQIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
Sumana ChakravartySanaria, Inc., Rockville, Maryland, USA.
Virginia McPhunInstitute for Glycomics, Griffith University, Gold Coast, Queensland, Australia.
Denise L DoolanQIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
Ian CockburnJohn Curtin School of Medical Research, Australian National University, Acton, Australian Capital Territory, Australia.
Stephen L HoffmanSanaria, Inc., Rockville, Maryland, USA.
Danielle I StanisicInstitute for Glycomics, Griffith University, Gold Coast, Queensland, Australia.
Michael F GoodInstitute for Glycomics, Griffith University, Gold Coast, Queensland, Australia michael.good@griffith.edu.au.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The development of a vaccine is essential for the elimination of malaria. However, despite many years of effort, a successful vaccine has not been achieved. Most subunit vaccine candidates tested in clinical trials have provided limited efficacy, and thus attenuated whole-parasite vaccines are now receiving close scrutiny. Here, we test chemically attenuated Plasmodium yoelii 17X and demonstrate significant protection following homologous and heterologous blood-stage challenge. Protection against blood-stage infection persisted for at least 9 months. Activation of both CD4(+) and CD8(+) T cells was shown after vaccination; however, in vivo studies demonstrated a pivotal role for both CD4(+) T cells and B cells since the absence of either cell type led to loss of vaccine-induced protection. In spite of significant activation of circulating CD8(+) T cells, liver-stage immunity was not evident. Neither did vaccine-induced CD8(+) T cells contribute to blood-stage protection; rather, these cells contributed to pathogenesis, since all vaccinated mice depleted of both CD4(+) and CD8(+) T cells survived a challenge infection. This study provides critical insight into whole-parasite vaccine-induced immunity and strong support for testing whole-parasite vaccines in humans.

Indexed as

AnimalsAntibodies, ProtozoanCross ReactionsFemaleImmunizationImmunologic MemoryLife Cycle StagesLymphocyte ActivationMalariaMalaria VaccinesMicePlasmodium yoeliiT-Lymphocytes, Helper-InducerT-Lymphocyte SubsetsVaccines, AttenuatedAntibodies, ProtozoanMalaria VaccinesVaccines, Attenuated

Identifiers

PMID27245410
PMCPMC4962623

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.