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  • Title: Humoral immune response elicited in rats by measles viral membrane antigens presented in liposomes and ISCOMs.
    Author: Mougin B, Bakouche O, Gerlier D.
    Journal: Vaccine; 1988 Oct; 6(5):445-9. PubMed ID: 3195201.
    Abstract:
    The immunogenicity of measles virus glycoproteins presented associated to liposomes or ISCOMs was compared with that of whole virus and solubilized membrane proteins in W/Fu rats. The rats were immunized three times at ten-day intervals with syngeneic peritoneal exudate cells fed in vitro with the various antigen preparations. A strong and persisting antibody response with haemagglutinin inhibitory and neutralization activity was observed in rats immunized with liposomes, ISCOMs, or virus. The responses were very similar despite the lower dose of protein received by rats immunized with ISCOMs (1 microgram protein) or with liposomes (20 micrograms protein). By contrast, injection of peritoneal exudate cells previously fed in vitro with soluble H and F glycoproteins resulted in only a poor and transient response. The sera from rats immunized with virus, liposomes or ISCOMs contained antibodies immunoprecipitating mainly H and F glycoproteins. Despite a strong enrichment in F polypeptides during the preparation of ISCOMs, they induced an equal anti-H and anti-F antibody response.
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