PDE4D Cell-Based Reporter Assay Kit

The PDE4D cell-based activity assay is designed for screening inhibitors of PDE4D7 in cultured cells. The assay is based on transfecting cells with the CRE luciferase reporter. CRE reporter contains the firefly luciferase gene under the control of cAMP response element (CRE). Elevation of intracellular cAMP activates CRE binding protein (CREB) to bind CRE and induce the expression of luciferase. When cells transiently transfected with CRE reporter are activated by forskolin|the intracellular level of cAMP is upregulated|which induces the expression of CRE luciferase reporter. However|when cells are co-transfected with PDE4D7 expression vector and CRE reporter|the level of forskolin-induced cAMP is reduced|resulting in lower expression level of luciferase. When cells are treated with PDE4D inhibitor to inhibit PDE4D7 activity|cAMP level is restored|resulting in higher luciferase activity.

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