| abstract |
A method for identifying compounds that can induce expression of cytochrome P450, in particular, expression of the CYP3A4 isoform, is described. The method provides a reporter gene operably linked to a composite promoter comprising in tandem one or more cis-acting elements, which are bound by activated pregnane X receptor (PXR), operably linked to a heterologous promoter. Analytes, which are inducers CYP3A4 expression via PXR activation, induce expression of the reporter gene. |