Evidence map›Paper›PMID 21871517›Full record

ArticleVaccine2011

A naturally derived outer-membrane vesicle vaccine protects against lethal pulmonary Burkholderia pseudomallei infection.

Wildaliz Nieves, Saja Asakrah, Omar Qazi, Katherine A Brown, Jonathan Kurtz, David P Aucoin, James B McLachlan, Chad J Roy, Lisa A Morici

Abstract read
In one paragraph

Article in Vaccine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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

74 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Outer Membrane Vesicles Derived from Yak Isolates ofAnimals : an open access journal from MDPI · 2026
    Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Advances in nanotechnology for the therapy of bacterial pneumonia.Frontiers in cellular and infection microbiology · 2025
    Review
  10. Article
  11. Delivery ofmSphere · 2024
    Article
  12. LVS ΔmBio · 2024
    Article
  13. Review
  14. Decoration ofInfection and immunity · 2024
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Role ofFrontiers in microbiology · 2023
    Review
  20. Review

14 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 1 country.

Wildaliz NievesDepartment of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, USA.
Saja Asakrah
Omar Qazi
Katherine A Brown
Jonathan Kurtz
David P Aucoin
James B McLachlan
Chad J Roy
Lisa A Morici
Tulane University · USThe University of Texas at Austin · USUniversity of Nevada, Reno · US

Funding

WRCE Nonhuman Primate CoreU54AI057156 · NIAID · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI WALKER, DAVID H · 2003 to 2013
$102.6M
Vaccines and Diagnostics TrialsU54AI065359 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI BARBOUR, ALAN G. · 2005 to 2013
$88.8M
Novel Molecular Recognition Reagents for Detection of Pathogenic BurkholderiaU01AI078008 · NIAID · UNIVERSITY OF TEXAS AT AUSTIN · PI BROWN, KATHERINE ANNE · 2008 to 2010
$1.8M
NIAID NIH HHS 1U01AI078008-3NIAID NIH HHS U01 AI078008NIAID NIH HHS U54 AI057156NIAID NIH HHS U54 AI065359NIAID NIH HHS U54AI065359
6 · The paper itself

Abstract

Burkholderia pseudomallei, and other members of the Burkholderia, are among the most antibiotic-resistant bacterial species encountered in human infection. Mortality rates associated with severe B. pseudomallei infection approach 50% despite therapeutic treatment. A protective vaccine against B. pseudomallei would dramatically reduce morbidity and mortality in endemic areas and provide a safeguard for the U.S. and other countries against biological attack with this organism. In this study, we investigated the immunogenicity and protective efficacy of B. pseudomallei-derived outer membrane vesicles (OMVs). Vesicles are produced by Gram-negative and Gram-positive bacteria and contain many of the bacterial products recognized by the host immune system during infection. We demonstrate that subcutaneous (SC) immunization with OMVs provides significant protection against an otherwise lethal B. pseudomallei aerosol challenge in BALB/c mice. Mice immunized with B. pseudomallei OMVs displayed OMV-specific serum antibody and T-cell memory responses. Furthermore, OMV-mediated immunity appears species-specific as cross-reactive antibody and T cells were not generated in mice immunized with Escherichia coli-derived OMVs. These results provide the first compelling evidence that OMVs represent a non-living vaccine formulation that is able to produce protective humoral and cellular immunity against an aerosolized intracellular bacterium. This vaccine platform constitutes a safe and inexpensive immunization strategy against B. pseudomallei that can be exploited for other intracellular respiratory pathogens, including other Burkholderia and bacteria capable of establishing persistent infection.

Indexed as

AnimalsAntibodies, BacterialBacterial VaccinesBurkholderia pseudomalleiCross ReactionsExosomesFemaleImmunologic MemoryInjections, SubcutaneousMelioidosisMiceMice, Inbred BALB CPneumonia, BacterialSurvival AnalysisT-LymphocytesAntibodies, BacterialBacterial Vaccines

Identifiers

PMID21871517
PMCPMC3195868
OpenAlexW1998687012

What OpenQuestion holds

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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.