ARE-Luc/EF1α-mCherry Reporter Cell Line - HeLa

ARE-Luc/EF1α-mCherry Reporter Cell Line - HeLa is a human cervical carcinoma-derived reporter cell line engineered for sensitive monitoring of antioxidant response element (ARE)-dependent transcriptional activity. The cells carry a luciferase reporter gene under the control of ARE-responsive regulatory sequences, enabling quantitative measurement of signaling mediated by the Nrf2 pathway. In parallel, constitutive expression of mCherry driven by the human EF1α promoter provides a stable fluorescent reference for cell identification, normalization, and imaging-based assessment of cell number or viability. This dual-reporter design combines the high sensitivity and broad dynamic range of luciferase detection with the convenience of continuous red fluorescence. The cell line is suitable for routine culture under standard HeLa cell conditions and offers a robust platform for evaluating cellular responses to oxidative stress and electrophilic stimuli.

This reporter cell line is particularly useful for screening and characterizing compounds that activate or inhibit the Nrf2/ARE signaling pathway. It can be applied in drug discovery programs to identify antioxidant, cytoprotective, anti-inflammatory, and chemopreventive candidates, as well as to assess potential off-target pathway activation. Following treatment with test compounds, ARE-driven luciferase activity can be measured using a conventional luminometer, while EF1α-mCherry fluorescence can support normalization for cell density, transfection-independent comparison, and high-content imaging workflows. The model is also valuable for mechanistic studies of oxidative stress, redox homeostasis, xenobiotic metabolism, and toxicological responses. In addition, it can be used to evaluate gene perturbations, including siRNA, CRISPR-based editing, or overexpression experiments, that influence Nrf2 regulation or downstream ARE-dependent transcription.