Immunogenic composition comprising an il-13 element and t...

C - Chemistry – Metallurgy – 07 – K

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C07K 19/00 (2006.01) A61K 39/00 (2006.01) A61K 39/385 (2006.01) A61P 11/00 (2006.01) A61P 37/06 (2006.01) A61P 37/08 (2006.01) C07K 14/54 (2006.01)

Patent

CA 2496409

The present invention relates to isolated immunogens and their use in the treatment of diseases that are treatable with neutralisation of IL-13, such as COPD, asthma and atopic disorders such as hayfever, contact allergies and atopic dermatitis. In particular the invention relates to the neutralisation of the biological effects of IL-13 by raising an immune response against the IL-13 by vaccination of a mammal with immunogens comprising the native or mutated amino acid sequence of IL-13, and foreign T-helper epitopes either inserted in, or attached to the IL-13 sequence or present in carrier polypeptides. Also provided by the present invention are DNA vaccines that comprise a polynucleotide sequence that encodes the immunogens of the present invention. The invention further relates to pharmaceutical compositions comprising such immunogens and their use in medicine and to methods for their production.

L'invention concerne des immunogènes isolés et leur utilisation dans le traitement de maladies pouvant être traitées par neutralisation de l'IL-13, telles que la BPCO, l'asthme et de troubles atopiques tels que la fièvre des foins, les allergies de contact et la dermatite atopique. Elle concerne, en particulier, la neutralisation des effets biologiques de l'IL-13 par accroissement d'une réponse immune dirigée contre l'IL-13 par vaccination d'un mammifère au moyen d'immunogènes contenant la séquence d'acides aminés native ou mutée de l'IL-13, et des épitopes de lymphocyte T4 étranger, soit insérés dans la séquence d'IL-13, ou qui y sont attachés, ou qui sont présents dans des polypeptides supports. Elle concerne aussi des vaccins à ADN comprenant une séquence de polynucléotide codant pour les immunogènes de l'invention. Elle concerne enfin des compositions pharmaceutiques contenant ces immunogènes et leur utilisation en médecine ainsi que des procédés concernant leur production.

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