Optimized reporter gene assays based on a synthetic multifunctional promoter and a secreted luciferase.

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Efficient screening for ligands of seven-transmembrane, G-protein-coupled receptors, whether transfected or endogenously expressed, often involves cell-based reporter assays. Here we describe the development of reporter gene assays in HeLa cells. The reporter construct includes a synthetic multifunctional promoter with several different response motifs (NF-kappaB, STAT, and AP-1) and hence efficiently funnels several signaling pathways. The assay, performed with the resulting reporter cell line HFF11, has an exceptional high Z-factor and a large signal-to-background ratio. To facilitate cell handling during screening, we introduced a secreted Renilla luciferase as a reporter enzyme. HR36 reporter cells, equipped with the construct, were added to ligands present in a multiwell plate and after addition of coelenterazine they produced a luminescence readout. This procedure economizes cell handling and at the same time increases assay quality and sensitivity


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Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Neurovetenskaper


Sidor (från-till)208-215
TidskriftAnalytical Biochemistry
Utgåva nummer2
StatusPublished - 2003
Peer review utfördJa