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

G - Physics – 01 – N

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G01N 33/566 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2690293

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.

La présente invention a pour objet une méthode pour déterminer si un composé est capable d'inhiber l'interaction d'un peptide et d'un récepteur d'un produit final de glycation avancée (RAGE). Cette méthode comprend : a) mélanger i) le peptide, dans lequel les groupes amino sont inactivés par dérivatisation, ii) le RAGE ou un fragment de celui-ci, iii) le composé; b) déterminer la quantité de peptide lié au RAGE ou au fragment de celui-ci; c) comparer la quantité de peptide lié déterminée à l'étape b) avec la quantité déterminée quand le peptide est mélangé au RAGE ou à un fragment de celui-ci en l'absence du composé. On détermine ainsi si le composé est capable d'inhiber ou non l'interaction du peptide avec le RAGE ou un fragment de celui-ci, une réduction de la quantité de liaisons en présence du composé indiquant que le composé est capable de cette inhibition.

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