Immunization against autologous ghrelin

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/39 (2006.01) A61K 39/00 (2006.01) A61K 39/385 (2006.01) A61P 3/04 (2006.01) C07K 14/435 (2006.01)

Patent

CA 2498739

Disclosed are novel methods that generally rely on immunization against autologous ghrelin. Immunization is preferably effected by administration of analogues of autologous ghrelin, said analogues being capable of inducing antibody production against the autologous ghrelin polypeptides. Especially preferred as an immunogen is autologous ghrelin, which has been modified by introduction of one single or a few foreign, immunodominant and promiscuous T- cell epitopes. Also disclosed are nucleic acid vaccination against ghrelin and vaccination using live vaccines as well as methods and means useful for the vaccination. Such methods and means include methods for the preparation of analogues and pharmaceutical formulations, as well as nucleic acid fragments, vectors, transformed cells, polypeptides and pharmaceutical formulations.

L'invention concerne de nouvelles méthodes concernant généralement une immunisation contre la ghréline autologue. Cette immunisation est de préférence effectuée par le biais de l'administration d'analogues de ghréline autologue, lesdits analogues pouvant induire une protection d'anticorps contre des polypeptides de ghréline autologue. En particulier, un immunogène préféré est la ghréline autologue qui a été modifiée par l'introduction d'un épitope unique ou de quelques épitopes de cellule T ubiquiste et immunodominante étrangère. L'invention concerne également une vaccination d'acide nucléique contre la ghréline et une vaccination faisant appel à des vaccins vivants, ainsi que des méthodes et des moyens utiles pour cette vaccination. De telles méthodes et de tels moyens comprennent des méthodes de préparation d'analogues et de formulations pharmaceutiques, ainsi que de fragments d'acides nucléiques, des vecteurs, des cellules transformées, de polypeptides et des formulations pharmaceutiques.

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