Proinsulin peptide compounds for detecting and treating type...

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/62 (2006.01) A61K 38/08 (2006.01) A61K 38/10 (2006.01) A61K 38/28 (2006.01) C07K 7/06 (2006.01) C07K 7/08 (2006.01) C07K 14/74 (2006.01) C12Q 1/02 (2006.01) G01N 33/50 (2006.01) G01N 33/564 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2194548

Proinsulin peptide compounds that modulate an immunological response by T cells of Type I diabetic subjects are disclosed. The proinsulin peptide compounds of the invention are preferably derived from a region of proinsulin that spans the junction between the B chain and C peptide of proinsulin. Pharmaceutical compositions comprising the proinsulin peptide compounds are also disclosed. An immunological response to a proinsulin peptide compound of the invention can be used as an indicator of Type I diabetes in a subject. Accordingly, the invention provides diagnostic assays for Type I diabetes using the proinsulin peptide compounds. Methods for inhibiting the development or progression of Type I diabetes in a subject by administering a proinsulin peptide compound are also disclosed.

Composés de peptide de pro-insuline modulant une réponse immunologique par les lymphocyte T de sujets diabétiques du type I. Les composés de peptide de pro-insuline de cette invention sont préférablement extraits d'une région de pro-insuline qui couvre la jonction existant entre la chaîne B et le peptide C de la pro-insuline. On décrit également des compositions pharmaceutiques comprenant les composés de peptide de pro-insuline de cette invention. La réponse immunologique induite par un composé de peptide de pro-insuline peut servir d'indicateur pour détecter un diabète du type I chez un sujet et cette invention présente des dosages de diagnostic qui servent à rechercher le diabète du type I avec les composés de peptide de pro-insuline revendiqués. On décrit également des procédés qui permettent d'inhiber le développement ou la progression du diabète du type I chez un sujet et qui consistent à lui administrer un composé de peptide de pro-insuline.

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