Evidence map›Paper›PMID 19605593›Full record

ArticleClinical and vaccine immunology : CVI2009

Oral immunization with attenuated Salmonella enterica serovar Typhimurium encoding Cryptosporidium parvum Cp23 and Cp40 antigens induces a specific immune response in mice.

Alvaro J Benitez, Nina McNair, Jan R Mead

Open access · diamondAbstract read
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Diagnosis and control of cryptosporidiosis in farm animals.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2022
    Review
  3. Review
  4. Review
  5. Article
  6. Asparagine-Linked Glycans ofMolecular & cellular proteomics : MCP · 2017
    Article
  7. Article
  8. Article
  9. Systemic and Mucosal Immune Responses toCurrent tropical medicine reports · 2015
    Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Cryptosporidiosis-an overview.Journal of biomedical research · 2012
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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 at 1 institution in 1 country.

Alvaro J BenitezDepartment of Pediatrics, Emory University School of Medicine, Atlanta, Georgia 30033, USA.
Nina McNair
Jan R Mead
Emory University · US

Funding

IMMUNODOMINANT TARGETS OF CMI TO CRYPTOSPORIDIUMR01AI036680 · NIAID · EMORY UNIVERSITY · PI MEAD, JAN R · 1996 to 2009
$1.8M
NIAID NIH HHS R01 AI036680NIAID NIH HHS R01-AI-36680
6 · The paper itself

Abstract

Attenuated Salmonella enterica serovar Typhimurium vaccine strain SL3261 was used as an antigen delivery system for the oral immunization of mice against two Cryptosporidium parvum antigens, Cp23 and Cp40. Each antigen was subcloned into the pTECH1 vector system, which allows them to be expressed as fusion proteins with highly immunogenic fragment C of tetanus toxin under the control of the anaerobically inducible nirB promoter. The recombinant vector was introduced into Salmonella Typhimurium vaccine strain SL3261, and the stable soluble expression of the chimeric protein was evaluated and confirmed by Western blotting with polyclonal C. parvum antisera. Mice were inoculated orally with a single dose of SL3261/pTECH-Cp23 or Cp40, respectively, and plasmid stability was demonstrated both in vitro and in vivo. Specific serum immunoglobulin G (IgG) antibodies against the Cp23 or Cp40 antigen were detected by enzyme-linked immunosorbent assay 35 days after immunization. Also, serum IgA and mucosal (feces) IgA antibodies were detected in 30% of the mice immunized with Cp23. In addition, prime-boosting with Cp23 and Cp40 DNA vaccine vectors followed by Salmonella immunization significantly increased antibody responses to both antigens. Our data show that a single oral inoculation with recombinant S. Typhimurium SL3261 can induce specific antibody responses to the Cp23 or Cp40 antigen from C. parvum in mice, suggesting that recombinant Salmonella is a feasible delivery system for a vaccine against C. parvum infection.

Indexed as

Genetic VectorsAdministration, OralAnimalsAntibodies, ProtozoanAntigens, ProtozoanCryptosporidium parvumEnzyme-Linked Immunosorbent AssayFecesFemaleImmunoglobulin AImmunoglobulin GMaleMiceMice, Inbred C57BLMice, KnockoutPeptide FragmentsAntibodies, ProtozoanAntigens, ProtozoanImmunoglobulin AImmunoglobulin GPeptide FragmentsProtozoan VaccinesRecombinant Fusion ProteinsTetanus Toxintetanus toxin fragment C

Identifiers

PMID19605593
PMCPMC2745010
OpenAlexW2154888748

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.