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Updated: Apr 6, 2026
Cellular Redox Profiling Using High-content Microscopy
Published on: May 14, 2017
High-throughput screening of cellular redox sensors using modern redox proteomics approaches
Jingwen Jiang1,2, Kui Wang1, Edouard C Nice3
1a 1 State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China.
Abstract:
Cancer cells are characterized by higher levels of intracellular reactive oxygen species (ROS) due to metabolic aberrations. ROS are widely accepted as second messengers triggering pivotal signaling pathways involved in the process of cell metabolism, cell cycle, apoptosis, and autophagy. However, the underlying cellular mechanisms remain largely unknown. Recently, accumulating evidence has demonstrated that ROS initiate redox signaling through direct oxidative modification of the cysteines of key redox-sensitive proteins (termed redox sensors). Uncovering the functional changes underlying redox regulation of redox sensors is urgently required, and the role of different redox sensors in distinct disease states still remains to be identified. To assist this, redox proteomics has been developed for the high-throughput screening of redox sensors, which will benefit the development of novel therapeutic strategies for cancer treatment. Highlighted here are recent advances in redox proteomics approaches and their applications in identifying redox sensors involved in tumor development.
Insights
Cancer cells exhibit elevated reactive oxygen species (ROS), crucial signaling molecules. Redox proteomics identifies key redox sensors, aiding the development of novel cancer therapies.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Cancer cells possess elevated intracellular reactive oxygen species (ROS) due to metabolic dysregulation.
- ROS act as critical second messengers in cellular processes like metabolism, cell cycle, apoptosis, and autophagy.
- The precise mechanisms of ROS-mediated signaling and the identification of specific redox sensors are not fully understood.
Purpose of the Study:
- To explore the role of reactive oxygen species (ROS) and redox sensors in cancer.
- To highlight advances in redox proteomics for identifying redox sensors.
- To discuss the application of redox proteomics in cancer research and therapeutic strategy development.
Main Methods:
- Review of recent advances in redox proteomics techniques.
- Analysis of studies identifying redox-sensitive proteins (redox sensors).
- Examination of the role of redox sensors in tumor development.
Main Results:
- Reactive oxygen species (ROS) initiate redox signaling via oxidative modification of cysteine residues in redox-sensitive proteins.
- Redox proteomics enables high-throughput screening and identification of redox sensors.
- Identified redox sensors are crucial for understanding tumor development.
Conclusions:
- Understanding redox regulation by specific redox sensors is essential for cancer research.
- Redox proteomics is a powerful tool for discovering novel cancer therapeutic targets.
- Further investigation into redox sensors will advance cancer treatment strategies.
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