RhoA/ELK1/SRF Luciferase Reporter Lentivirus

The RhoA/ELK1/SRF luciferase reporter lentivirus is a high-performance, ready-to-use lentiviral system designed for sensitive quantification of transcriptional activity downstream of the RhoA-ELK1-serum response factor axis. Packaged as replication-deficient lentiviral particles, typically using broad host range pseudotyped viruses, this system supports efficient and stable genomic integration in a wide variety of dividing and non-dividing mammalian cell types, making it an ideal choice for difficult-to-transfect cells. The luciferase reporter gene is driven by a minimal promoter controlled by tandem serum response elements that respond to ELK1/SRF activation, providing low basal signal and high inducibility for a high signal-to-noise ratio.

This reporter lentivirus is highly suitable for various applications requiring direct, real-time readout of RhoA/ELK1/SRF pathway activity. In basic research, it can be used to elucidate upstream signaling regulating actin dynamics, stress fiber formation, and SRF-controlled transcriptional programs, including studies of mechanotransduction, cell morphological changes, and stimulus-dependent gene expression. It is a powerful tool for drug screening and high-throughput screening of small molecules, biologics, or genetic perturbations that modulate RhoA GTPase, ROCK, MAPK/ERK, or other nodes associated with ELK1/SRF, supporting potency ranking, EC50 determination, and off-target effect assessment. In oncology, it can be used to characterize invasive or migratory phenotypes and monitor pathway reprogramming during epithelial-mesenchymal transition or metastasis. In cardiovascular and smooth muscle biology, it can be used to study hypertrophic signaling, contraction-related transcription, and vascular remodeling. In fibrosis and tissue repair models, it helps quantify pro-fibrotic transcripts and evaluate anti-fibrotic drug candidates.