Methods for determining whether a compound is capable of...

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/705 (2006.01) A61K 31/49 (2006.01) C07K 17/00 (2006.01) G01N 33/50 (2006.01) G01N 33/566 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2346339

The present invention provides a method for determining whether a compound is capable of inhibiting the interaction of a peptide with a receptor for advanced glycation end product (RAGE), which comprises: (a) admixing: (i) the peptide, wherein amino groups of the peptide are inactivated by derivitization, (ii) RAGE or a fragment thereof, and (iii) the compound; (b) determining the amount of the peptide bound to RAGE or the fragment thereof, and (c) comparing the amount of bound peptide determined in step (b) with the amount determined when the peptide is admixed with RAGE or a fragment thereof in the absence of the compound, thereby determining whether the compound is capable of inhibiting the interaction of the peptide with RAGE or a fragment thereof, wherein a reduction in the amount of binding in the presence of the compound indicates that the compound is capable of inhibiting the interaction.

L'invention concerne un procédé qui permet de déterminer si un composé est capable d'inhiber l'interaction d'un peptide avec le récepteur d'un produit final de glycation évolué (RAGE). Le procédé consiste à: a) mélanger I) le peptide dont des groupes amino sont inactivés par formation de dérivés, ii) RAGE ou un fragment de RAGE, et iii) le composé; b) déterminer la quantité du peptide liée à RAGE ou au fragment de RAGE; et c) comparer la quantité de peptide, telle que déterminée à l'étape b), avec la quantité déterminée lorsque le peptide est mélangé avec RAGE ou un fragment de RAGE en l'absence du composé, cela, afin de déterminer si le composé est capable d'inhiber l'interaction du peptide avec RAGE ou un fragment de RAGE. Une réduction de niveau de liaison en présence du composé indique que le composé est capable d'inhiber l'interaction.

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