Liver Fluke vaccines: Recombinant Stage-specific antigens and multivalent vaccines against fasciolosis

Rama Jayaraj

    Research output: Contribution to conferenceAbstract

    Abstract

    Fasciola’s excretory-secretory material comprises chiefly cathepsin B and cathepsin L. These cysteine proteases are proposed as major mediators of parasitism, and are considered targets for vaccination. In order to assess the vaccine efficacy of these enzymes, single and multivalent recombinant protein vaccinations of adult-stage F. hepatica cathepsin L5, metacercarial-stage F. gigantica cathepsin L1g and juvenile-stage protective efficacy of anti-fluke vaccines was evaluated in terms of parasitological parameters (recovered fluke burden, fluke body size and wet weight) and pathological changes (liver damage score) in rats. The rats vaccinated with recombinant proteins were shown to have significantly fewer and smaller flukes than the control rats. A maximum protection of 83% was seen in the group vaccinated with a combination of cathepsin B and cathepsin L5.
    Original languageEnglish
    Publication statusPublished - 2011
    EventAustralian Society for Immunology International Conference - Adelaide
    Duration: 11 Dec 201115 Dec 2011

    Conference

    ConferenceAustralian Society for Immunology International Conference
    Period11/12/1115/12/11

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