293T cells (3 × 105 cells) were plated in 12-well plates in triplicate 24 h before transfection. Five hundred nanograms of the bioreporter constructs was transfected using PolyJet transfection reagent (SignaGen Laboratories). After 48 h, supernatant or cells lysates were collected. Cells were lysed using passive lysis buffer (Promega). NanoLuc luciferase assays were performed using one of two substrates: FMZ/ (Nano-Glo cell reagent, Promega) or native CTZ (3.33 μM final concentration; Nanolight Technologies-Prolume, Pinetop, AZ, USA). A Synergy microplate reader (BioTek, Winooski, VT, USA) was used to measure luminescence. Results are presented as RLU normalized to control. The data presented are the mean of three independent experiments.
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