ARE-Luc/EF1α-mCherry Reporter Cell Line - SGC-7901

The SGC-7901 cell line, originally established from a human gastric adenocarcinoma, is a cornerstone model in gastrointestinal cancer research, valued for its consistent proliferation and relevance to clinical pathology. The ARE-Luc/EF1α-mCherry Reporter Cell Line - SGC-7901 is a sophisticated genetic variant designed to probe the dynamics of the Nrf2-mediated antioxidant response. It incorporates an Antioxidant Response Element (ARE) upstream of a Firefly Luciferase gene, enabling the quantitative assessment of transcriptional activity through bioluminescence. Complementing this, the line stably expresses mCherry under the control of the constitutive EF1α promoter. This dual-labeling strategy provides a reliable internal standard to normalize luciferase data across varying cell densities and serves as a fluorescent marker for longitudinal monitoring of cell health and localization, ensuring high data fidelity in complex experimental setups.

This reporter system is particularly advantageous for high-throughput screening (HTS) aimed at identifying small molecules that modulate the cellular defense against oxidative stress. By measuring luciferase induction, researchers can evaluate the potency of antioxidant compounds or the inhibitory effects of drug candidates on the Nrf2 pathway, which is often hijacked by cancer cells to promote survival and drug resistance. Beyond simple screening, the cell line is highly effective for mechanistic investigations into how gastric cancer cells adapt to oxidative environments and the impact of specific gene knockdowns on redox homeostasis. The presence of the mCherry reporter further extends its utility to live-cell imaging and flow cytometry, allowing for the simultaneous analysis of pathway activation and phenotypic changes. This makes it an invaluable tool for studying the interplay between oxidative signaling, tumor progression, and the efficacy of novel therapeutic interventions in a gastric cancer context.