Methods and compositions for diagnosis and treatment of...

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Details

G01N 33/569 (2006.01) A61K 38/00 (2006.01) A61K 39/00 (2006.01) A61P 31/16 (2006.01) C07K 5/10 (2006.01) C07K 7/06 (2006.01) C07K 14/085 (2006.01) C07K 16/10 (2006.01)

Patent

CA 2613482

The invention provides method and compositions for determining the presence and amount of an influenza virus in a sample including high risk strains of Influenza A. Also provided are methods for determining whether a subject is infected with a influenza virus, as well as, the type and strain of the influenza virus. The methods involve contacting a sample from the subject with a PDZ polypeptides (PDZ) and/or PDZ ligands (PL) and determining whether binding interactions occur between PDZ and PL. Assays for identifying anti- viral agents are also provided, as well as, methods for using the compositions to alter PDZ binding to PL in influenza infected cells.

L'invention porte: sur une méthode et des compositions permettant de déterminer la présence et la quantité d'un virus de la grippe dans un échantillon, dont les souches à haut risque de la grippe A; et sur des méthodes permettant de déterminer si un sujet est infecté par un virus de la grippe et le type de souche du virus. Ces méthodes consistent à mettre en contact un échantillon prélevé sur le sujet avec des polypeptides PDZ (PDZ) et/ou des ligands du PDZ (PL), puis à déterminer si des interactions de fixation se produisent entre eux. L'invention porte également sur des bioessais d'identification d'agents antiviraux et sur des méthodes d'utilisation de compositions modifiant la fixation du PDZ sur le PL dans des cellules infectées par le virus de la grippe.

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