Triple Assay System for Identifying Substrate Selectivity of Gamma Secretase Inhibitors

摘要

The invention provides assays and methods for determining whether a compound inhibits gamma secretase in a substrate specific manner. The invention provides an isolated cell wherein the cell stably expresses APP and at least one gamma secretase substrate other than APP. The invention provides assays and methods comprising contacting a cell with gamma secretase and detecting production of Abeta, detecting production of intracellular domain (ICD), and detecting a signal from a reporter gene under transcriptional control of the ICD. The invention also provides compounds that inhibit gamma secretase, pharmaceutical compositions comprising such compounds, and methods of treating Alzheimer's disease using such compounds.