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Updated: Nov 11, 2025

Production and Detection of Reactive Oxygen Species ROS in Cancers
Published on: November 21, 2011
The double-edged roles of ROS in cancer prevention and therapy
Yawei Wang1,2, Huan Qi2, Yu Liu1,2
1Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China.
Abstract:
Reactive oxygen species (ROS) serve as cell signaling molecules generated in oxidative metabolism and are associated with a number of human diseases. The reprogramming of redox metabolism induces abnormal accumulation of ROS in cancer cells. It has been widely accepted that ROS play opposite roles in tumor growth, metastasis and apoptosis according to their different distributions, concentrations and durations in specific subcellular structures. These double-edged roles in cancer progression include the ROS-dependent malignant transformation and the oxidative stress-induced cell death. In this review, we summarize the notable literatures on ROS generation and scavenging, and discuss the related signal transduction networks and corresponding anticancer therapies. There is no doubt that an improved understanding of the sophisticated mechanism of redox biology is imperative to conquer cancer.
Insights
Reactive oxygen species (ROS), crucial for cell signaling, have dual roles in cancer, promoting growth or death. Understanding redox biology is key to developing effective anticancer therapies.
Area of Science:
- Biochemistry
- Cell Biology
- Oncology
Background:
- Reactive oxygen species (ROS) are signaling molecules from oxidative metabolism, linked to diseases.
- Redox metabolism reprogramming causes abnormal ROS accumulation in cancer cells.
- ROS exhibit dual roles in cancer progression, influencing tumor growth, metastasis, and apoptosis.
Purpose of the Study:
- To review ROS generation and scavenging mechanisms.
- To discuss ROS-mediated signal transduction networks in cancer.
- To explore ROS-targeted anticancer therapies.
Main Methods:
- Literature review of notable studies on ROS.
- Analysis of redox biology and cancer progression.
- Synthesis of information on signal transduction and therapies.
Main Results:
- ROS accumulation in cancer cells is linked to altered redox metabolism.
- The effects of ROS in cancer are concentration, location, and duration-dependent.
- ROS can drive malignant transformation or induce oxidative stress-mediated cell death.
Conclusions:
- A comprehensive understanding of redox biology is essential for cancer treatment.
- Targeting ROS pathways offers potential for novel anticancer strategies.
- Further research into the sophisticated mechanisms of redox biology is imperative to conquer cancer.
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