Method of up-regulating tumor antigen expression using...

A - Human Necessities – 61 – K

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A61K 38/00 (2006.01) A61K 38/22 (2006.01)

Patent

CA 2490868

The present invention provides a method for up-regulating tumor cell antigen expression, comprising administering to the cells an amount of thymalfasin sufficient to increase the expression of TLP relative to that of untreated tumor cells. Also provided are methods for enhancing the sensitivity of a immunodiagnostic or immunotherapeutic method, comprising pre-treating target tumor cells by administering to the cells an amount of thymalfasin sufficient to increase the expression of TLP relative to that of untreated tumor cells, followed by application of the immunodiagnostic or immunotherapeutic method. These methods are applicable to both in vivo and in vitro diagnostic methods, and to in vivo immunotherapeutic methods.

La présente invention concerne un procédé de régulation en amont de l'expression d'antigènes de cellules tumorales, comprenant l'administration aux cellules d'une quantité de thymalfasine suffisante pour augmenter l'expression de TLP par rapport à celle qui a lieu dans les cellules tumorales non traitées. L'invention a également pour objet des procédés pour améliorer la sensibilité d'une méthode d'immunodiagnostic ou d'immunothérapie, comprenant le pré-traitement de cellules tumorales cibles par administration à ces cellules d'une quantité de thymalfasine suffisante pour augmenter l'expression de TLP par rapport à celle qui a lieu dans les cellules tumorales non traitées, suivi de l'application de la méthode d'immunodiagnostic ou d'immunothérapie. Ces procédés peuvent s'appliquer à la fois à des méthodes d'immunodiagnostic in vivo et in vitro, et à des méthodes d'immunothérapie in vivo.

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