Methods for screening for a compound useful in the treatment...

C - Chemistry – Metallurgy – 12 – Q

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C12Q 1/42 (2006.01)

Patent

CA 2479501

A method of screening for a compound useful in the treatment of a disease or condition characterized by an immune cells disorder, wherein said cell expresses NTPDases, said method comprising the steps of contacting a candidate compound with ecto-nucleoside triphosphate diphosphohydrolase (NTPDase), wherein the candidate compound is selected if the activity of said NTPDase is reduced in the presence of the candidate compound as compared to that in the absence thereof. A method for inhibiting an immune cell activity in a mammal, comprising targeting immune cells with an effective amount of a NTPDase inhibitor. A method to prevent or reduce the risk of rejection of transplanted tissue or organ, comprising administering to said animal an effective amount of NTPDase inhibitor.

Cette invention se rapporte à un procédé de criblage d'un composé utile dans le traitement d'une maladie ou d'un état se caractérisant par un trouble des cellules immunitaires, lesquelles expriment les enzymes NTPDases, ce procédé consistant à mettre en contact un composé candidat avec l'enzyme ecto-nucléoside triphosphate diphosphohydrolase (NTPDase), ce composé candidat étant sélectionné lorsque l'activité de cette enzyme NTPDase est réduite en présence du composé candidat par rapport à son activité en l'absence dudit composé. Un procédé pour inhiber l'activité des cellules immunitaires chez un mammifère consiste à cibler les cellules immunitaires avec une quantité efficace d'un inhibiteur de NTPDase. Un procédé pour prévenir ou réduire les risques de rejet de tissus ou d'organes transplantés consiste à administrer à cet animal une quantité efficace d'un inhibiteur de NTPDase.

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