Cell-Based Assays to Identify Modulators of Nrf2/ARE Pathway

Area of Science:

• Biochemistry
• Cell Biology
• Toxicology

Background:

• Cellular oxidative stress is a critical factor in various diseases.
• The nuclear factor erythroid 2-related factor (Nrf2) and antioxidant response element (ARE) pathway is a key regulator of the cellular antioxidant response.
• Identifying modulators of this pathway is crucial for understanding and treating oxidative stress-related conditions.

Purpose of the Study:

• To describe two novel cell-based assays for quantifying Nrf2/ARE pathway activation.
• To establish these assays in a high-throughput screening (HTS) format for large-scale chemical library screening.
• To provide a detailed protocol for assay implementation, including cell handling, preparation, and instrumentation.

Main Methods:

• Development and validation of two distinct cell-based assays measuring Nrf2/ARE pathway activity.
• Implementation of a quantitative high-throughput screening (HTS) approach.
• Detailed description of cell culture, assay reagent preparation, instrument setup, and data acquisition procedures.

Main Results:

• The described assays provide a quantitative measure of Nrf2/ARE pathway activation.
• The HTS format enables the efficient screening of large chemical collections.
• The assays are robust and suitable for identifying compounds that induce or inhibit oxidative stress signaling.

Conclusions:

• The developed cell-based Nrf2/ARE assays are effective tools for oxidative stress research.
• These HTS assays facilitate the discovery of novel chemicals impacting cellular redox homeostasis.
• The detailed protocols ensure reproducibility and applicability in various research settings.