Vaccine against cancerous diseases

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/00 (2006.01) A61P 35/00 (2006.01) C07K 16/32 (2006.01) C12N 15/10 (2006.01) C12N 15/83 (2006.01) G01N 33/577 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2405290

The present invention provides a method for producing a vaccine against cancerous diseases, and the vaccine itself. This method involves first using one or more antibodies that are specifically effective against one or more antigens specially expressed by the tumor cells to select one or more mimotopes of said antigens from a phage peptide library. To obtain the vaccine, said mimotopes are conjugated to a macromolecular carrier singly or multiply in the form of their mono-, di-, tri- or oligomers. When administered, the inventively produced vaccine leads to a humoral immune response and thus to the formation of an active immunity as a consequence of vaccination.

L'invention concerne un procédé pour produire un vaccin contre des maladies cancéreuses, ainsi que le vaccin lui-même. Ce procédé consiste à utiliser tout d'abord un ou plusieurs anticorps agissant spécifiquement contre un ou plusieurs d'antigènes exprimés spécialement par les cellules tumorales, pour sélectionner un ou plusieurs mimotopes de ces antigènes dans une bibliothèque de phages-peptides. Pour l'obtention du vaccin, ces mimotopes, sous la forme de leurs monomères, dimères, trimères ou oligomères, sont conjugués une ou plusieurs fois avec un substrat macromoléculaire. Ces vaccins ainsi produits entraînent, lorsqu'ils sont administrés, une réponse immunitaire humorale et par conséquent l'apparition d'une immunité active, consécutive à la vaccination.

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