Evidence map›Paper›PMID 19124765›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2009

Mucosally delivered Salmonella typhi expressing the Yersinia pestis F1 antigen elicits mucosal and systemic immunity early in life and primes the neonatal immune system for a vigorous anamnestic response to parenteral F1 boost.

Karina Ramirez, Alejandra V E Capozzo, Scott A Lloyd, Marcelo B Sztein, James P Nataro, Marcela F Pasetti

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2009. 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
8.5field-weighted citation impact, top 3% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Plague Vaccines: Status and Future.Advances in experimental medicine and biology · 2016
    Review
  6. Ontogeny of early life immunity.Trends in immunology · 2014
    Review
  7. Article
  8. Article
  9. Developing live vaccines against plague.Journal of infection in developing countries · 2011
    Review
  10. Article
  11. Immunology of gut mucosal vaccines.Immunological reviews · 2011
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
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

6 authors at 2 institutions in 2 countries.

Karina RamirezCenter for Vaccine Development, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
Alejandra V E Capozzo
Scott A Lloyd
Marcelo B Sztein
James P Nataro
Marcela F Pasetti
University of Maryland, Baltimore · USInstitut de Recherche Vaccinale · FR

Funding

Live Vector Vaccines Against Agents of BioterrorU19AI056578 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI NATARO, JAMES P. · 2003 to 2007
$8.2M
Immune Responses to Biodefense Vaccines Early in LifeR01AI065760 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI PASETTI, MARCELA F · 2006 to 2010
$1.8M
NIAID NIH HHS R01 AI065760NIAID NIH HHS R01-AI065760NIAID NIH HHS U19 AI056578NIAID NIH HHS U19-AI-56578
6 · The paper itself

Abstract

Neonates respond poorly to conventional vaccines. This has been attributed, in part, to the immaturity of neonatal dendritic cells that lack full capacity for Ag presentation and T cell stimulation. We engineered an attenuated Salmonella Typhi strain to express and export the F1 Ag of Y. pestis (S. Typhi(F1)) and investigated its immunogenicity early in life using a heterologous prime-boost regimen. Newborn mice primed intranasally with a single dose of S. Typhi(F1) elicited mucosal Ab- and IFN-gamma-secreting cells 1 wk after immunization. They also developed a potent and fast anamnestic response to a subsequent parenteral boost with F1-alum, which surpassed those of mice primed and boosted with S. Typhi(F1) or F1-alum. Neonatal priming with S. Typhi(F1), as opposed to priming with F1-alum, resulted in a more balanced IgG2a/IgG1 profile, enhanced avidity maturation and stimulation of B memory cells, and strong Th1-type cell-mediated immunity. S. Typhi(F1) enhanced the activation and maturation of neonatal CD11c+ dendritic cells, shown by increased expression of CD80, CD86, CD40, and MHC-II cell surface markers and production of proinflammatory cytokines IL-12, TNF-alpha, IL-6, and MCP-1. S. Typhi(F1)-stimulated neonatal DC had improved capacity for Ag presentation and T cell stimulation in vitro and induced F1-specific CD4+ and CD8+ T cell responses when adoptively transferred to newborn mice. Mucosal immunization with S. Typhi expressing a foreign Ag effectively primes the neonatal immune system for potent, fast, and broader responses to a parenteral Ag boost. Such a strategy can prevent infectious diseases, including those considered biowarfare threats, early in life.

Indexed as

Immunization, SecondaryImmunologic MemoryAdministration, IntranasalAnimalsAnimals, NewbornAntibodies, BacterialAntibody AffinityAntigens, BacterialBacterial CapsulesBacterial ProteinsCrosses, GeneticGenetic VectorsImmunity, ActiveImmunity, MucosalMiceMice, Inbred BALB CAntibodies, BacterialAntigens, BacterialBacterial Proteinscaf1 protein, Yersinia pestisSalmonella VaccinesVaccines, AttenuatedVaccines, Synthetic

Identifiers

PMID19124765
PMCPMC2863138
OpenAlexW1586644347

What OpenQuestion holds

Textmetadata
LicenceTDM
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.