Novel means and methods for the preparation and activation...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/09 (2006.01) A61K 38/43 (2006.01) A61K 39/00 (2006.01) C07K 14/245 (2006.01) C07K 14/39 (2006.01) C07K 14/435 (2006.01) C07K 16/00 (2006.01) C12N 1/11 (2006.01) C12N 1/19 (2006.01) C12N 1/21 (2006.01) C12N 5/10 (2006.01) C12N 9/12 (2006.01) C12N 15/63 (2006.01) C12P 21/00 (2006.01) C12P 21/08 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2319134

Described are novel means and methods for the preparation and activation of nucleoside and nucleotide based drugs. In particular, a method for the production of a polypeptide having or having enhanced kinase activity for a nucleoside or nucleotide analog is provided and polypeptides obtainable by said method. Described are also polynucleotides and vectors encoding said polypeptide obtainable by the method of the invention as well as to host cells transformed therewith. Furthermore, antibodies against said polypeptide are provided and pharmaceutical and diagnostic compositions as well as kits comprising proteins having kinase activity for a nucleoside or nucleotide analog or their encoding polynucleotides or vectors. Furthermore, the use of the before described proteins, polypeptides, polynucleotides, vectors and antibodies is provided for the preparation of pharmaceutical compositions for treating, preventing and/or delaying a disease related to viral infection or cancer. In addition, a method for identifying inhibitors of nucleoside or nucleotide kinases is described and methods for identifying nucleoside or nucleotide based prodrugs employing the above mentioned polypeptides, polynucleotides, vectors and host cells. Also provided are compounds identifiable by said methods as well as pharmaceutical and diagnostic compositions comprising said inhibitors. Moreover, the use of proteins and polypeptides having nucleoside or nucleotide kinase activity or their encoding polynucleotides or vectors is described for the preparation of nucleoside or nucleotide phosphates or analogs and derivatives thereof.

L'invention concerne de nouveaux moyens et méthodes de préparation et d'activation de médicaments à base de nucléosides et de nucléotides. L'invention concerne, en particulier, une méthode de production d'un polypeptide ayant une activité kinase accrue vis-à-vis d'un analogue de nucléoside ou de nucléotide, ainsi que les polypeptides que l'on peut obtenir conformément à ladite méthode. L'invention concerne également des polynucléotides et des vecteurs codant le polypeptide que l'on peut obtenir conformément à la méthode de l'invention, ainsi que des cellules hôtes transformées par ceux-ci. L'invention concerne, en outre, des anticorps contre ledit polypeptide, et des compositions pharmaceutiques et diagnostiques, ainsi que des kits renfermant des protéines ayant une activité kinase vis-à-vis d'un analogue de nucléoside ou de nucléotide ou de leurs polynucléotides ou vecteurs codants. L'invention concerne l'utilisation des protéines, des polypeptides, des polynucléotides, des vecteurs et des anticorps décrits ci-dessus pour la préparation de compositions pharmaceutiques permettant de traiter, de prévenir et/ou de retarder une maladie associée à une infection virale ou à un cancer. En outre, l'invention concerne une méthode d'identification des inhibiteurs des kinases de nucléosides ou de nucléotides, ainsi que des méthodes d'identification de promédicaments à base de nucléosides ou de nucléotides utilisant les polypeptides, les polynucléotides, les vecteurs et les cellules hôtes susmentionnés. L'invention concerne des composés que l'on peut identifier par ces méthodes, ainsi que des compositions pharmaceutiques et diagnostiques renfermant lesdits inhibiteurs. L'invention concerne enfin l'utilisation de protéines et de polypeptides ayant une activité kinase nucléosidique ou nucléotidique, ou de leurs polynucléotides ou vecteurs codants pour la préparation de phosphates de nucléosides ou de nucléotides, d'analogues ou de dérivés de ces phosphates.

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