Conjugate vaccines for the prevention of dental caries

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/09 (2006.01) A61K 38/45 (2006.01) A61K 39/39 (2006.01) C07K 14/315 (2006.01) C07K 14/33 (2006.01) C12N 9/10 (2006.01) C12N 15/54 (2006.01)

Patent

CA 2325338

The present invention provides glucan-based compositions and methods for stimulating an immune response against mutans streptococci components and vaccines and methods for the treatment and prevention of dental caries. In a preferred embodiment, a glucan polymer is covalently bound to one or more T cell-dependent antigens to form a conjugate vaccine. The T cell-dependent antigen preferably contains epitopes of one or more mutans streptococcal proteins, such as a glucosyltransferase. Moreover, one or more moieties, including haptens, may be conjugated to the glucan or to the glucan-T cell- dependent composition. In a preferred embodiment, these moieties are peptides which contain immunogenic epitopes corresponding to components of a mutants streptococcus.

L'invention concerne des compositions à base de glucane et des procédés de stimulation d'une réponse immunitaire contre les composants streptococciques mutants, des vaccins et des procédés pour le traitement et la prévention de caries dentaires. Selon un mode de réalisation préférentiel, un polymère de glucane est lié par covalence à un ou plusieurs antigènes dépendant du lymphocyte T pour former un vaccin conjugué. L'antigène précité renferme de préférence des épitopes d'une ou plusieurs protéines streptococciques mutantes, telles que la glucosyltransférase. Par ailleurs, une ou plusieurs fractions, comprenant des haptènes, peuvent être conjuguées au glucane ou à la composition dépendant de lymphocyte T de glucane. Selon un mode de réalisation préférentiel, ces fractions sont des peptides renfermant des épitodes immunogènes correspondant à des composants d'un streptocoque mutant.

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