NFκB-Luc/EF1α-mCherry Reporter Cell Line - A549

NFκB-Luc/EF1α-mCherry Reporter Cell Line - A549 is a human lung adenocarcinoma-derived reporter cell line engineered to monitor nuclear factor kappa B (NFκB) pathway activity. The cells contain a luciferase reporter driven by NFκB-responsive elements, enabling sensitive quantification of NFκB transcriptional activation through luminescence measurement. In addition, the cell line constitutively expresses mCherry under the control of the EF1α promoter, providing a stable fluorescent marker for cell identification, normalization, imaging, and assessment of cell number or viability. A549 cells retain epithelial characteristics and are widely used as an in vitro model of the human airway and alveolar epithelium. The dual-reporter design combines pathway-specific functional readout with constitutive fluorescence, supporting convenient and reproducible analysis in cell-based experimental systems.

This reporter cell line is suitable for studying inflammatory signaling triggered by cytokines, microbial components, environmental irritants, oxidative stress, and other NFκB-activating stimuli. It can be used to evaluate TNF-α-, IL-1β-, lipopolysaccharide-, or virus-associated induction of NFκB activity in a pulmonary cell background. The luciferase signal supports quantitative screening of anti-inflammatory compounds, NFκB inhibitors, biologics, and drug candidates, while mCherry fluorescence facilitates live-cell imaging, cell tracking, transfection normalization, and assay quality control. It is also useful for investigating molecular mechanisms involved in innate immunity, epithelial inflammation, respiratory infection, cancer-associated signaling, and stress responses.