Evidence map›Paper›PMID 22001876›Full record

ArticleVaccine2011

Α1-giardin based live heterologous vaccine protects against Giardia lamblia infection in a murine model.

Gabriela Jenikova, Petr Hruz, Mattias K Andersson, Noa Tejman-Yarden, Patricia C D Ferreira, Yolanda S Andersen, Barbara J Davids, Frances D Gillin, Staffan G Svärd, Roy Curtiss and 1 more

Open access · greenAbstract 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 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.2field-weighted citation impact, top 15% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

  1. Extracellular Vesicles ofJournal of extracellular biology · 2026
    Article
  2. Parasitology · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Disease Biomarkers of Giardiasis.Journal of parasitology research · 2022
    Review
  12. "Immunoinformatic Identification of T-Cell and B-Cell Epitopes FromFrontiers in cellular and infection microbiology · 2021
    Article
  13. Giardia duodenalis Virulence - "To Be, or Not To Be".Current tropical medicine reports · 2021
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Prokaryotic Expression ofBioMed research international · 2017
    Article
  19. Article
  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

11 authors at 3 institutions in 2 countries.

Gabriela JenikovaDepartment of Medicine, University of California, San Diego, La Jolla, CA 92093, United States.
Petr Hruz
Mattias K Andersson
Noa Tejman-Yarden
Patricia C D Ferreira
Yolanda S Andersen
Barbara J Davids
Frances D Gillin
Staffan G Svärd
Roy Curtiss
Lars Eckmann
University of California, San Diego · USArizona State University · USUppsala University · SE

Funding

TL MOLECULES AND GAMMA-DELTA T CELLSP01DK035108 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI KAGNOFF, MARTIN FREDERICK · 1986 to 2013
$19.2M
Recombinant Attenuated Salmonella Vaccines for HumansR01AI056289 · NIAID · WASHINGTON UNIVERSITY · PI CLARK-CURTISS, JOSEPHINE E, CURTISS III, ROY · 2003 to 2018
$5.8M
The UCSD Digestive Diseases Research Development CenterR24DK080506 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ECKMANN, LARS · 2008 to 2012
$2.7M
Salmonella Vaccines Against Bacterial EnteropathogensR01AI060557 · NIAID · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI CURTISS III, ROY · 2010 to 2014
$2.2M
S. typhimiurium Vaccine Against Bacterial EnteropathogensU01AI060557 · NIAID · WASHINGTON UNIVERSITY · PI CURTISS, ROY · 2003 to 2007
$1.4M
NIAID NIH HHS AI56289NIAID NIH HHS AI60557NIAID NIH HHS R01 AI056289NIAID NIH HHS R01 AI060557NIAID NIH HHS U01 AI060557NIDDK NIH HHS DK35108NIDDK NIH HHS DK80506NIDDK NIH HHS P01 DK035108NIDDK NIH HHS R24 DK080506
6 · The paper itself

Abstract

Giardia lamblia is a leading protozoan cause of diarrheal disease worldwide, yet preventive medical strategies are not available. A crude veterinary vaccine has been licensed for cats and dogs, but no defined human vaccine is available. We tested the vaccine potential of three conserved antigens previously identified in human and murine giardiasis, α1-giardin, α-enolase, and ornithine carbamoyl transferase, in a murine model of G. lamblia infection. Live recombinant attenuated Salmonella enterica Serovar Typhimurium vaccine strains were constructed that stably expressed each antigen, maintained colonization capacity, and sustained total attenuation in the host. Oral administration of the vaccine strains induced antigen-specific serum IgG, particularly IgG(2A), and mucosal IgA for α1-giardin and α-enolase, but not for ornithine carbamoyl transferase. Immunization with the α1-giardin vaccine induced significant protection against subsequent G. lamblia challenge, which was further enhanced by boosting with cholera toxin or sublingual α1-giardin administration. The α-enolase vaccine afforded no protection. Analysis of α1-giardin from divergent assemblage A and B isolates of G. lamblia revealed >97% amino acid sequence conservation and immunological cross-reactivity, further supporting the potential utility of this antigen in vaccine development. Together. These results indicate that α1-giardin is a suitable candidate antigen for a vaccine against giardiasis.

Indexed as

Administration, OralAnimalsAntibodies, ProtozoanAntigens, ProtozoanCholera ToxinCytoskeletal ProteinsGiardia lambliaGiardiasisMiceMice, Inbred BALB COrnithine CarbamoyltransferasePhosphopyruvate HydrataseProtozoan ProteinsProtozoan VaccinesSalmonella typhimuriumVaccines, SyntheticAntibodies, ProtozoanAntigens, ProtozoanCholera ToxinCytoskeletal Proteinsgiardin protein, Giardia lambliaOrnithine CarbamoyltransferasePhosphopyruvate HydrataseProtozoan ProteinsProtozoan VaccinesVaccines, Synthetic

Identifiers

PMID22001876
PMCPMC4045459
OpenAlexW2073178782

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.