Evidence map›Paper›PMID 22202122›Full record

ArticleInfection and immunity2012

Broadly protective Shigella vaccine based on type III secretion apparatus proteins.

Francisco J Martinez-Becerra, Julian M Kissmann, Jovita Diaz-McNair, Shyamal P Choudhari, Amy M Quick, Gabriela Mellado-Sanchez, John D Clements, Marcela F Pasetti, Wendy L Picking

Abstract read
In one paragraph

Article in Infection and immunity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 2 pooled it
–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

95 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Human vaccines & immunotherapeutics · 2026
    Review
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  11. Characterization ofApplied and environmental microbiology · 2025
    Article
  12. Vaccines · 2025
    Article
  13. Review
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  17. Article
  18. Article
  19. Mapping the functional B-cell epitopes ofApplied and environmental microbiology · 2024
    Article
  20. Article

35 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.

Francisco J Martinez-BecerraCenter for Vaccine Development and Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, USA.
Julian M Kissmann
Jovita Diaz-McNair
Shyamal P Choudhari
Amy M Quick
Gabriela Mellado-Sanchez
John D Clements
Marcela F Pasetti
Wendy L Picking

Funding

A. L. lactis-based vaccine for children with broad spectrum for enteric pathogensR01AI089519 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI PASETTI, MARCELA F, PICKING, WENDY L. · 2010 to 2014
$3.2M
NIAID NIH HHS 1R01 AI089519-01NIAID NIH HHS R01 AI089519
6 · The paper itself

Abstract

Shigella spp. are food- and waterborne pathogens that cause severe diarrheal and dysenteric disease associated with high morbidity and mortality. Individuals most often affected are children under 5 years of age in the developing world. The existence of multiple Shigella serotypes and the heterogenic distribution of pathogenic strains, as well as emerging antibiotic resistance, require the development of a broadly protective vaccine. All Shigella spp. utilize a type III secretion system (TTSS) to initiate infection. The type III secretion apparatus (TTSA) is the molecular needle and syringe that form the energized conduit between the bacterial cytoplasm and the host cell to transport effector proteins that manipulate cellular processes to benefit the pathogen. IpaB and IpaD form a tip complex atop the TTSA needle and are required for pathogenesis. Because they are common to all virulent Shigella spp., they are ideal candidate antigens for a subunit-based, broad-spectrum vaccine. We examined the immunogenicity and protective efficacy of IpaB and IpaD, alone or combined, coadministered with a double mutant heat-labile toxin (dmLT) from Escherichia coli, used as a mucosal adjuvant, in a mouse model of intranasal immunization and pulmonary challenge. Robust systemic and mucosal antibody- and T cell-mediated immunities were induced against both proteins, particularly IpaB. Mice immunized in the presence of dmLT with IpaB alone or IpaB combined with IpaD were fully protected against lethal pulmonary infection with Shigella flexneri and Shigella sonnei. We provide the first demonstration that the Shigella TTSAs IpaB and IpaD are promising antigens for the development of a cross-protective Shigella vaccine.

Indexed as

Adjuvants, ImmunologicAnimalsAntigens, BacterialBacterial ProteinsBacterial ToxinsDysentery, BacillaryEnterotoxinsEscherichia coli ProteinsFemaleMembrane Transport ProteinsMiceMice, Inbred BALB CShigella flexneriShigella sonneiShigella VaccinesVaccines, SubunitAdjuvants, ImmunologicAntigens, BacterialBacterial ProteinsBacterial ToxinsEnterotoxinsEscherichia coli Proteinsheat-labile enterotoxin, E coliipaB protein, ShigellaIpaD protein, Shigella flexneriMembrane Transport ProteinsShigella VaccinesVaccines, SubunitVaccines, Synthetic

Identifiers

PMID22202122
PMCPMC3294653

What OpenQuestion holds

Textmetadata
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.