Evidence map›Paper›PMID 10603389›Full record

ArticleInfection and immunity2000

In vivo characterization of the murine intranasal model for assessing the immunogenicity of attenuated Salmonella enterica serovar Typhi strains as live mucosal vaccines and as live vectors.

T E Pickett, M F Pasetti, J E Galen, M B Sztein, M M Levine

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
17.2field-weighted citation impact, top 1% 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

37 citing papers in PubMed, 82 citations in OpenAlex.

  1. Genetic engineering ofEcoSal Plus · 2024
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  14. The microbiome of the lung.Translational research : the journal of laboratory and clinical medicine · 2012
    Review
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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

5 authors at 2 institutions in 2 countries.

T E PickettCenter for Vaccine Development, Division of Geographic Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA.
M F Pasetti
J E Galen
M B Sztein
M M Levine
Hospital for Tropical Diseases · VNUniversity of Maryland, Baltimore · US

Funding

IMMUNE MECHANISMS OF PROTECTION IN S TYPHI VACCINESR01AI036525 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI Marcelo B. Sztein · 1994 to 2026
$12.2M
RECOMBINANT &LIVE ORAL SALMONELLA TYPHI HYBRID VACCINESR01AI029471 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI LEVINE, MYRON MAX · 1990 to 2008
$3.7M
MULTIVALENT SALMONELLA TYPHI BASED MALARIA VACCINESR01AI040297 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI LEVINE, MYRON MAX · 1997 to 2004
$1.8M
NIAID NIH HHS R01 AI029471NIAID NIH HHS R01 AI036525NIAID NIH HHS R01 AI040297NIAID NIH HHS R01 AI29471NIAID NIH HHS R01 AI36525NIAID NIH HHS R01 AI40297
6 · The paper itself

Abstract

Attenuated Salmonella enterica serovar Typhi live vector vaccine strains are highly immunogenic in mice following intranasal but not orogastric inoculation. To elucidate the relationship between organs within which vaccine organisms are found and the induction of specific serum immunoglobulin G (IgG) antibodies, we examined the in vivo distribution of serovar Typhi vaccine strain CVD 908-htrA following intranasal administration. Vaccine organisms were cultured from the nasal lymphoid tissue (NALT), lungs, and Peyer's patches 2 min after intranasal inoculation. Vaccine organisms persisted longer in NALT than in other organs. By decreasing the volume of intranasal inoculum containing 10(9) CFU (from a single 30- or 10-microl dose to four 2.5-microl doses given over the course of 1 h), we were able to significantly reduce the number of vaccine organisms isolated from the lungs (P < 0.05) without reducing the number of vaccine organisms in NALT. Reducing the number of vaccine organisms in the lungs resulted in a significant decrease in the serum tetanus antitoxin response elicited by CVD 908-htrA expressing tetanus toxin fragment C under the control of the redox-responsive nir15 promoter. In contrast, a similar construct expressing tetanus toxin fragment C under control of the constitutive lpp promoter stimulated a strong serum IgG tetanus antitoxin response with both inoculation regimens. The data suggest that following intranasal inoculation, NALT is a sufficient inductive site for elicitation of an immune response against both the live vector and heterologous antigen and, as occurs following oral inoculation of humans, attenuated serovar Typhi vaccine organisms elicit serum IgG responses.

Indexed as

Administration, IntranasalAdministration, OralAnimalsAntibodies, BacterialAntibody SpecificityBacterial VaccinesColony Count, MicrobialDisease Models, AnimalDose-Response Relationship, ImmunologicFemaleImmunity, MucosalImmunoglobulin GLungLymphoid TissueMiceMice, Inbred BALB CAntibodies, BacterialBacterial VaccinesImmunoglobulin GVaccines, Attenuated

Identifiers

PMID10603389
PMCPMC97122
OpenAlexW2110924099

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.