TNFαPro-Luc/EF1α-mCherry Reporter Cell Line - HEK293

TNFαPro-Luc/EF1α-mCherry Reporter Cell Line - HEK293 is a stably engineered human embryonic kidney 293 cell line designed for sensitive monitoring of tumor necrosis factor alpha (TNFα)-associated signaling. In this reporter system, the firefly luciferase gene is controlled by a TNFα-responsive promoter, allowing transcriptional activation induced by TNFα stimulation to be quantified through luminescence measurement. The cell line also constitutively expresses mCherry under the EF1α promoter, providing a robust fluorescent marker for cell identification, morphology assessment, transduction efficiency evaluation, and normalization of cell number or viability. The combination of inducible luciferase expression and constitutive mCherry fluorescence provides a dual-reporter format suitable for both functional pathway analysis and routine cell-based assay quality control.

This reporter cell line is useful for investigating TNFα-mediated inflammatory signaling and for screening compounds that modulate TNFα pathway activity. Following treatment with TNFα, agonists, antagonists, neutralizing antibodies, cytokines, or test molecules, pathway activation can be evaluated by measuring luciferase activity. Reduction of the luminescent signal may indicate inhibition of TNFα-responsive transcription, whereas signal enhancement may reveal stimulatory or sensitizing effects. The constitutive mCherry signal can be used in parallel to monitor cell distribution, confirm reporter-cell presence in co-culture systems, or distinguish specific pathway effects from nonspecific cytotoxicity. The cells are suitable for high-throughput compound screening, antibody characterization, potency testing, inflammatory response studies, and comparative evaluation of biologics or small-molecule inhibitors. They may also support mechanistic studies involving TNFα-related transcriptional regulation and cellular signaling networks.