title: Luciferase Reporter Assays to Assess Liver X Receptor Transcriptional Activity.
abstract: Luciferase reporter assays are sensitive and accurate tests that enable the analysis of regulatory sequences, the magnitude of transcriptional activity by transcription factors, and the discovery of gene regulatory elements and small-molecule modulators with high levels of precision. This is made possible through detection of bioluminescence produced by luciferase-coding reporters in a wide range of cellular environments. These assays are routinely used to analyze the activity of transcription factors, including the lipid-activated liver X receptor (LXR), in response to different stimuli as well as for the identification of their ligands. In this chapter we describe in detail the assays performed to investigate LXR activity in a macrophage-like cell line (RAW 267.4). These can be easily adapted to other nuclear receptors and transcription factors.
authors.affiliation: Division of Medicine, Centre for Clinical Pharmacology, University College of London, 5 University Street, London, WC1 E6JF, UK.
authors.forename: Matthew C
authors.initials: MC
authors.lastname: Gage
authors.affiliation: Division of Medicine, Centre for Clinical Pharmacology, University College of London, 5 University Street, London, WC1 E6JF, UK.|UMR INSERM 1011, Institut Pasteur de Lille, Université Lille Nord de France, Université Lille 2, 01 rue du Professeur Calmette, 59019, Lille Cedex, France.
authors.forename: Benoit
authors.initials: B
authors.lastname: Pourcet
authors.affiliation: Division of Medicine, Centre for Clinical Pharmacology, University College of London, 5 University Street, London, WC1 E6JF, UK. i.torra@ucl.ac.uk.
authors.forename: Inés
authors.initials: I
authors.lastname: Pineda-Torra
mesh_terms: D000818:Animals; D018929:Cell Culture Techniques; D002460:Cell Line; D015870:Gene Expression; D017930:Genes, Reporter; D000071518:Liver X Receptors; D008156:Luciferases / Q000235:genetics*; D008163:Luminescent Measurements / Q000379:methods; D051379:Mice; D057093:Orphan Nuclear Receptors / Q000378:metabolism*; D011401:Promoter Regions, Genetic; D014158:Transcription, Genetic; D015533:Transcriptional Activation; D014162:Transfection
chemical_list: D000071518:Liver X Receptors; D057093:Orphan Nuclear Receptors; D008156:Luciferases
keywords: Liver X receptor; Luciferase; Luminescence; Macrophage; Nuclear receptors; RAW 267.4; Reporter assay