Epitopes described in "Intranasal vaccination with a lipopeptide containing a conformationally constrained conserved minimal peptide, a universal T cell epitope, and a self-adjuvanting lipid protects mice from group A streptococcus challenge and reduces throat colonization."

Reference
Article Authors:Michael R Batzloff; Jon Hartas; Weiguang Zeng; David C Jackson; Michael F Good
Article Title:Intranasal vaccination with a lipopeptide containing a conformationally constrained conserved minimal peptide, a universal T cell epitope, and a self-adjuvanting lipid protects mice from group A streptococcus challenge and reduces throat colonization.
Reference Detail
Reference ID:1007730
Abstract:Infection with group A streptococcus (GAS) may result in a number of human diseases, including potentially life-threatening postinfectious sequelae. In the present study, J14, a conformationally constrained conserved minimal peptide from the M protein, was incorporated into a lipopeptide construct to which a universal T cell epitope and a self-adjuvanting lipid moiety, Pam(2)Cys, were also attached. We demonstrate that this lipopeptide construct, when administered intranasally (inl) without additional adjuvants, protects outbred mice from lethal respiratory GAS challenge. In addition, the lipopeptide was capable of inducing J14-specific mucosal immunoglobulin A, which coincided with reduced throat colonization after respiratory GAS challenge. These preclinical experiments show that this lipopeptide could form the basis of an antidisease and transmission-blocking inl GAS vaccine.
Affiliations:Cooperative Research Centre for Vaccine Technology, Queensland Institute of Medical Research, Brisbane, Queensland 4029, Australia.
Date:2006
Reference Type:Literature
PubMed ID:16826480
Journal:J Infect Dis
Journal Volume:194
Article Pages:325-30
Journal ISSN:1537-6613
Article Chemical List:Adjuvants, Immunologic;Antibodies, Bacterial;Antigens, Bacterial;Bacterial Outer Membrane Proteins;Carrier Proteins;Epitopes, T-Lymphocyte;Immunoglobulin A;Immunoglobulin G;Lipoproteins;Streptococcal Vaccines;Vaccines, Subunit;streptococcal M protein;Gonadotropin-Releasing Hormone
Article MeSH List:Adjuvants, Immunologic; Administration, Intranasal; Animals; Antibodies, Bacterial(biosynthesis; blood ); Antigens, Bacterial(immunology ); Bacterial Outer Membrane Proteins(immunology ); Carrier Proteins(immunology ); Epitopes, T-Lymphocyte(immunology ); Female; Gonadotropin-Releasing Hormone(chemistry; immunology ); Immunoglobulin A(biosynthesis; blood ); Immunoglobulin G(biosynthesis; blood ); Lipoproteins(administration & dosage; chemical synthesis; chemistry ); Mice; Pharynx(microbiology ); Protein Conformation; Streptococcal Infections(immunology; microbiology; prevention & control ); Streptococcal Vaccines(administration & dosage; immunology ); Streptococcus pyogenes(immunology ); Vaccines, Subunit(administration & dosage; chemistry; immunology )
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