Griffith University

Michael Raymond Batzloff

Michael Francis Good

Manisha Pandey

A modified p145 peptide having enhanced mucosal immunogenicity for use in eliciting a mucosal immune response to group A streptococcal bacteria in a mammal such as a human. Intramuscular administration of the modified p145 peptide may be particularly efficacious. An S2 peptide or variant may be co-administered with the modified p145 peptide to enhance the immune response.

Immunogenic peptide against group a

A modified p145 peptide having enhanced mucosal immunogenicity for use in eliciting a mucosal immune response to group A Streptococcal bacteria in a mammal such as a human. Intramuscular administration of the modified p145 5 peptide may be particularly efficacious. An S2 peptide or variant may be co-administered with the modified p145 peptide to enhance the immune response.

The invention relates to methods of eliciting an immune response to group A streptococcal bacteria in a mammal, the method including the step of administering to the mammal an effective amount of a composition comprising an isolated p145 peptide of SEQ ID NO: 56 and/or a p145 peptide variant having an amino acid sequence at least 90% identical to SEQ ID NO: 56, and an isolated SpyCEP peptide of SEQ ID NO: 18 and/or a SpyCEP peptide variant having an amino acid sequence at least 90% identical to SEQ ID NO: 18.

Group A streptococcus vaccine

A method and composition for eliciting an immune response to group A streptococcal bacteria in a mammal is provided, which includes administering to the mammal an M protein fragment, variant or derivative thereof and a SpyCEP protein or peptide fragment, or an antibody to the SpyCEP protein or fragment to facilitate restoring or enhancing neutrophil activity. Also provided is an immunodominant peptide fragment of SpyCEP.

Growing community of inventors

Holmview, Australia

Michael Raymond Batzloff