Abstract
Phosphodiesterases (PDEs) constitute a superfamily of enzymes that plays an important role in signal transduction by catalysing the hydrolysis of cAMP and cGMP. cDNA encoding PDE7A1 subtype was cloned and a stable recombinant HEK 293 cell line expressing high levels of PDE7A1 was generated. Transient transfection of pCRE-Luc plasmid, harboring luciferase reporter gene into the stable recombinant cell line and subsequent treatment with PDE7 inhibitor, resulted in a dose-dependent increase in luciferase activity. This method provides a simple and sensitive cell-based assay for screening of PDE7 selective inhibitors for the treatment of T cell mediated diseases.
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