RXR/DR1 Luciferase Reporter Lentivirus

The RXR/DR1 luciferase reporter lentivirus is a versatile, ready-to-use reporter system designed to translate retinoid X receptor (RXR) pathway activity into a strong bioluminescent signal. It contains a luciferase reporter gene driven by a minimal promoter located downstream of multiple RXR response elements arranged in a DR1 configuration, thus exhibiting high specificity for RXR homodimers and permissive RXR heterodimers. Built on a lentiviral vector, this reporter system stably integrates into the host genome, supporting persistent and stable expression across cell divisions, making it ideal for generating long-term reporter cell lines or clonal cell lines. This platform boasts broad cell type compatibility and can be used in various immortalized cell lines, primary cells, and specialized models.

This reporter system is widely applicable to various applications requiring the monitoring, quantification, or modulation of RXR signaling. In drug discovery, it can be used for primary or secondary screening of RXR agonists, antagonists, and modulators, enabling rapid assessment of potency and efficacy, and providing orthogonal validation of phenotypic assay results. Its high sensitivity makes it suitable for analyzing partial or context-dependent agonists, and for detecting weak endogenous RXR activity in different cellular backgrounds. By capturing the integrated activity of permissive RXR heterodimers, the system supports nuclear receptor crosstalk studies and allows for comparative selectivity assessments with reporter systems for other receptor families. In disease-related biological research, it can be used to study RXR-related pathways in metabolism, lipid metabolism, inflammation, fibrosis, dermatology, and neurobiology, as well as various differentiation programs where RXR ligands play a regulatory role during differentiation.