Evidence map›Paper›PMID 20502667›Full record

SynthesisPloS one2010

Why functional pre-erythrocytic and bloodstage malaria vaccines fail: a meta-analysis of fully protective immunizations and novel immunological model.

D Lys Guilbride, Pawel Gawlinski, Patrick D L Guilbride

Abstract readMeta-Analysis
In one paragraph

Synthesis in PloS one, 2010. 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
–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

19 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Novel Strategies for Malaria Vaccine Design.Frontiers in immunology · 2018
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. The pathogenesis of malaria: a new perspective.Pathogens and global health · 2013
    Article
  15. Article
  16. Article
  17. Our impasse in developing a malaria vaccine.Cellular and molecular life sciences : CMLS · 2011
    Article
  18. Article
  19. 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.

D Lys GuilbrideDeutsches Krebsforschungszentrum, Heidelberg, Germany. lys@malariaresearchfoundation.com
Pawel Gawlinski
Patrick D L Guilbride

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundClinically protective malaria vaccines consistently fail to protect adults and children in endemic settings, and at best only partially protect infants. METHODOLOGY/PRINCIPAL

findingsWe identify and evaluate 1916 immunization studies between 1965-February 2010, and exclude partially or nonprotective results to find 177 completely protective immunization experiments. Detailed reexamination reveals an unexpectedly mundane basis for selective vaccine failure: live malaria parasites in the skin inhibit vaccine function. We next show published molecular and cellular data support a testable, novel model where parasite-host interactions in the skin induce malaria-specific regulatory T cells, and subvert early antigen-specific immunity to parasite-specific immunotolerance. This ensures infection and tolerance to reinfection. Exposure to Plasmodium-infected mosquito bites therefore systematically triggers immunosuppression of endemic vaccine-elicited responses. The extensive vaccine trial data solidly substantiate this model experimentally. CONCLUSIONS/SIGNIFICANCE: We conclude skinstage-initiated immunosuppression, unassociated with bloodstage parasites, systematically blocks vaccine function in the field. Our model exposes novel molecular and procedural strategies to significantly and quickly increase protective efficacy in both pipeline and currently ineffective malaria vaccines, and forces fundamental reassessment of central precepts determining vaccine development. This has major implications for accelerated local eliminations of malaria, and significantly increases potential for eradication.

Indexed as

ImmunizationModels, ImmunologicalAnimalsChloroquineErythrocytesHumansImmune EvasionImmune ToleranceImmunomodulationLife Cycle StagesMalariaMalaria VaccinesPlasmodiumSkinTime FactorsT-Lymphocytes, RegulatoryChloroquineMalaria Vaccines

Identifiers

PMID20502667
PMCPMC2873430

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.