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High Throughput Screening Assessment of Reactive Oxygen Species (ROS) Generation using Dihydroethidium (DHE) Fluorescence Dye
Published on: January 19, 2024
Signal transduction by reactive oxygen species
1Center for Molecular Medicine, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA. finkelt@nih.gov
The Journal of Cell Biology
|July 13, 2011
Summary
Reactive oxygen species (ROS) are now understood to be vital physiological regulators, not just harmful agents. Their signaling impacts cellular functions and disease development.
Area of Science:
- Biochemistry
- Cellular Biology
- Physiology
Background:
- Reactive oxygen species (ROS) were historically considered solely detrimental.
- Recent research highlights their crucial role in intracellular signaling pathways.
Purpose of the Study:
- To explore the regulatory functions of ROS in cellular processes.
- To understand the mechanisms by which ROS modulate protein activity.
- To investigate the link between ROS dysregulation and human diseases.
Main Methods:
- Analysis of redox-sensitive target proteins.
- Investigation of cysteine residue modifications.
- Examination of enzymatic activity changes due to ROS.
Main Results:
- ROS act as physiological regulators of intracellular signaling.
- Cysteine residue modification by ROS reversibly alters enzymatic activity.
- ROS influence growth factor response and inflammation.
Conclusions:
- ROS are critical signaling molecules with diverse physiological roles.
- Dysregulated ROS signaling is implicated in various human diseases.
- Understanding ROS mechanisms is key for disease intervention.
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