Assay methods and compositions for detecting and evaluating...

C - Chemistry – Metallurgy – 12 – Q

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C12Q 1/68 (2006.01) C07K 14/705 (2006.01) C07K 14/82 (2006.01) C12N 5/10 (2006.01) G01N 33/566 (2006.01)

Patent

CA 2087532

Transcription based assays that identify extracellular signals that modulate the activity of cell surface proteins are provided. Extracellular signals are indentified by measuring the amount of transcription of a reporter gene in a recombinant cell that expresses the cell surface protein and contains DNA encoding the reporter gene under the transcriptional control of a promoter that is regulated, directly or indirectly, by the cell surface protein. The assays provide a means for identifying potiential pharmaceutical compounds that can be used to treat disease by virtue of their agonistic or antagonistic effects on the cell surface protein. Recombinant cells that express cell surface receptors and that contain reporter gene constructs that include transcriptional regulatory elements that are responsive to the activity of the cell surface receptors are also provided.

Analyses fondées sur une transcription visant à identifier des signaux extracellulaires qui modulent l'activité de protéines de surface cellulaire. Les signaux extracellulaires sont identifiés en mesurant la valeur de transcription d'un gène marqueur d'une cellule recombinante qui exprime la protéine de surface cellulaire et contient de l'ADN codant pour un gène marqueur selon le contrôle transcriptionnel d'un promoteur qui est régulé, directement ou indirectement, par la protéine de surface cellulaire. Les analyses permettent d'identifier des composés pharmaceutiques potentiels pouvant être utilisés pour traiter des maladies en vertu de leurs effets agonistes ou antagonistes sur la protéine de surface cellulaire. Sont également fournies, dans le cadre de cette invention, des cellules recombinantes qui expriment des récepteurs de surface cellulaire et qui contiennent des constructions de gènes marqueurs incluant des éléments régulateurs transcriptionnels qui sont sensibles à l'activité des récepteurs de surface cellulaire.

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