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Identification of C...
Identification of Conserved Candidate Vaccine Antigens in the Surface Proteome of Giardia lamblia
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- Davids, Barbara J. (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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- Liu, Ching M. (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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- Hanson, Elaine M. (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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- Le, Christine H. Y. (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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- Ang, Jonathan (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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- Hanevik, Kurt (författare)
- Univ Bergen, Dept Clin Sci, Bergen, Norway
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- Fischer, Marvin (författare)
- Univ Bergen, Dept Clin Sci, Bergen, Norway
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- Radunovic, Matej (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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- Langeland, Nina (författare)
- Univ Bergen, Dept Clin Sci, Bergen, Norway
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- Ferella, Marcela (författare)
- Uppsala universitet,Mikrobiologi
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- Svärd, Staffan (författare)
- Uppsala universitet,Mikrobiologi
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- Ghassemian, Majid (författare)
- Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA
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- Miyamoto, Yukiko (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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- Eckmann, Lars (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
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(creator_code:org_t)
- AMER SOC MICROBIOLOGY, 2019
- 2019
- Engelska.
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Ingår i: Infection and Immunity. - : AMER SOC MICROBIOLOGY. - 0019-9567 .- 1098-5522. ; 87:6
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Giardia lamblia, one of the most common protozoal infections of the human intestine, is an important worldwide cause of diarrheal disease, malabsorption, malnutrition, delayed cognitive development in children, and protracted postinfectious syndromes. Despite its medical importance, no human vaccine is available against giardiasis. A crude veterinary vaccine has been developed, and experimental vaccines based on expression of multiple variant-specific surface proteins have been reported, but poorly defined vaccine components and excessive antigen variability are problematic for pharmaceutical vaccine production. To expand the repertoire of antigen candidates for vaccines, we reasoned that surface proteins may provide an enriched source of such antigens since key host effectors, such as secretory IgA, can directly bind to such antigens in the intestinal lumen and interfere with epithelial attachment. Here, we have applied a proteomics approach to identify 23 novel surface antigens of G. lamblia that show >90% amino acid sequence identity between the two human-pathogenic genetic assemblages (A and B) of the parasite. Surface localization of a representative subset of these proteins was confirmed by immunostaining. Four selected proteins, uridine phosphorylase-like protein-1, protein 21.1 (GL50803_ 27925), alpha 1-giardin, and alpha 11-giardin, were subsequently produced in recombinant form and shown to be immunogenic in mice and G. lamblia-infected humans and confer protection against G. lamblia infection upon intranasal immunization in rodent models of giardiasis. These results demonstrate that identification of conserved surface antigens provides a powerful approach for overcoming a key rate-limiting step in the design and construction of an effective vaccine against giardiasis.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Infektionsmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Infectious Medicine (hsv//eng)
Nyckelord
- giardiasis
- immunization
- surface antigens
- vaccines
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- ref (ämneskategori)
- art (ämneskategori)
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- Av författaren/redakt...
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Davids, Barbara ...
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Liu, Ching M.
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Hanson, Elaine M ...
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Le, Christine H. ...
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Ang, Jonathan
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Hanevik, Kurt
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visa fler...
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Fischer, Marvin
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Radunovic, Matej
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Langeland, Nina
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Ferella, Marcela
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Svärd, Staffan
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Ghassemian, Maji ...
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Miyamoto, Yukiko
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Eckmann, Lars
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visa färre...
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Infection and Im ...
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Uppsala universitet