ER Luciferase Reporter Lentivirus

The ER luciferase reporter gene lentiviral vector is meticulously designed to introduce a highly sensitive luciferase reporter gene into cells under the control of a minimal promoter coupled to an estrogen receptor (ER) response element. This lentiviral vector system possesses several key features: 1) High efficiency delivery – lentiviral particles stably integrate into both dividing and non-dividing cells, ensuring long-term expression of the reporter gene; 2) High sensitivity – the optimized ER response element enhances the detection of estrogen receptor signaling pathways while reducing background noise; 3) Multifunctional design – the minimal promoter reduces non-specific activation while maintaining responsiveness to ER ligands; 4) Scalability – stable viral titers and reproducible transduction efficiency make it suitable for high-throughput screening applications. Furthermore, the firefly luciferase reporter gene can be quantitatively measured via luminescence detection, providing a powerful tool for dynamic monitoring of ER activity.

This lentiviral reporter gene system is widely used to study estrogen receptor-mediated transcriptional regulation. Key applications include: 1) Mechanistic studies – investigating ERα/β signaling pathways, dimerization, and ligand-dependent activation in mammalian cell lines (e.g., MCF-7, HeLa); 2) Drug screening – identifying ER agonists/antagonists or evaluating endocrine disrupting chemicals (EDCs) in environmental toxicology; 3) Stable cell line construction – creating ER-responsive reporter cell lines for reproducible experiments, avoiding the variability associated with transient transfection. Researchers also utilize this system to explore interactions between ER and other nuclear receptors (e.g., glucocorticoid receptor or androgen receptor). Its compatibility with in vivo imaging further enables tracking ER activity in xenograft models, thus advancing preclinical research in breast cancer treatment.