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rOv-ASP-1, a recombinant secreted protein of the helminth Onchocercavolvulus, is a potent adjuvant for inducing antibodies to ovalbumin, HIV-1 polypeptide and SARS-CoV peptide antigens.

Identifieur interne : 000F04 ( Ncbi/Checkpoint ); précédent : 000F03; suivant : 000F05

rOv-ASP-1, a recombinant secreted protein of the helminth Onchocercavolvulus, is a potent adjuvant for inducing antibodies to ovalbumin, HIV-1 polypeptide and SARS-CoV peptide antigens.

Auteurs : Angus J. Macdonald [États-Unis] ; Long Cao ; Yuxian He ; Qian Zhao ; Shibo Jiang ; Sara Lustigman

Source :

RBID : pubmed:15837368

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English descriptors

Abstract

We studied the adjuvanticity of recombinant Onchocerca volvulus activation associated protein-1 (rOv-ASP-1) for ovalbumin (OVA) in mice. After a single immunization and one boost, rOv-ASP-1 exceeded the efficacy of alum or MPL + TDM adjuvants in terms of end-point total IgG or IgG1 and IgG2a anti-OVA titres. Using the helminth-derived adjuvant, IgG isotype responses to OVA were of a mixed Th1/Th2 profile and spleen cell cytokines exclusively Th1-type. The potent adjuvanticity of rOv-ASP-1 was confirmed in mice vaccinated with a 37-mer peptide from the S protein of SARS-CoV and an HIV-1 gp120-CD4 chimeric polypeptide antigen. Unusually for a helminth product, the rOv-ASP-1 adjuvant augmented not only Th2 but also Th1 responses, the latter property being of potential utility in stimulating anti-viral immune responses.

DOI: 10.1016/j.vaccine.2005.01.098
PubMed: 15837368


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pubmed:15837368

Le document en format XML

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<term>Antigens, Helminth (administration & dosage)</term>
<term>Antigens, Helminth (genetics)</term>
<term>Antigens, Helminth (immunology)</term>
<term>Antigens, Helminth (pharmacology)</term>
<term>HIV-1 (drug effects)</term>
<term>HIV-1 (immunology)</term>
<term>Helminth Proteins (pharmacology)</term>
<term>Mice</term>
<term>Ovalbumin (chemistry)</term>
<term>Ovalbumin (immunology)</term>
<term>Recombinant Proteins (immunology)</term>
<term>Recombinant Proteins (pharmacology)</term>
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<term>Antigènes d'helminthe (immunologie)</term>
<term>Antigènes d'helminthe (pharmacologie)</term>
<term>Lymphocytes auxiliaires Th1 (immunologie)</term>
<term>Lymphocytes auxiliaires Th2 (immunologie)</term>
<term>Ovalbumine ()</term>
<term>Ovalbumine (immunologie)</term>
<term>Protéines d'helminthes (pharmacologie)</term>
<term>Protéines recombinantes (immunologie)</term>
<term>Protéines recombinantes (pharmacologie)</term>
<term>Souris</term>
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<div type="abstract" xml:lang="en">We studied the adjuvanticity of recombinant Onchocerca volvulus activation associated protein-1 (rOv-ASP-1) for ovalbumin (OVA) in mice. After a single immunization and one boost, rOv-ASP-1 exceeded the efficacy of alum or MPL + TDM adjuvants in terms of end-point total IgG or IgG1 and IgG2a anti-OVA titres. Using the helminth-derived adjuvant, IgG isotype responses to OVA were of a mixed Th1/Th2 profile and spleen cell cytokines exclusively Th1-type. The potent adjuvanticity of rOv-ASP-1 was confirmed in mice vaccinated with a 37-mer peptide from the S protein of SARS-CoV and an HIV-1 gp120-CD4 chimeric polypeptide antigen. Unusually for a helminth product, the rOv-ASP-1 adjuvant augmented not only Th2 but also Th1 responses, the latter property being of potential utility in stimulating anti-viral immune responses.</div>
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