Abstract
Reactive oxygen species (ROS) are a group of highly reactive chemicals under tight control of intracellular antioxidants. The balance in oxidation-antioxidation is essential for maintaining normal cell functions, and any imbalance could lead to a wide range of diseases including cancer. The intracellular level of ROS is generally elevated in cancer cells, revealing a critical role of ROS in the process of carcinogenesis and cancer progression. Conversely, there is also evidence showing that ROS can act as cancer suppressors. This may be due to the varying antioxidant capacities of different cancers. These findings indicate a complex redox state in cancer cells. In this review we summarize the main features of ROS and their functions with respect to cancer initiation, hallmarks of cancer, and signaling in cancer cells. ROSelevating and ROS-depleting anticancer strategies and their mechanisms are thoroughly discussed. We argue that the rationale for therapy choice depends on a complete understanding of cancer cell redox state, namely, the “redox signaling signature” of cancer.
Keywords: Antioxidants, cancer biology, cancer progression, cancer therapy, carcinogenesis, reactive oxygen species.
Current Medicinal Chemistry
Title:Reactive Oxygen Species in Cancer Biology and Anticancer Therapy
Volume: 20 Issue: 30
Author(s): Y. Yang, S. Karakhanova, J. Werner and A. V. Bazhin
Affiliation:
Keywords: Antioxidants, cancer biology, cancer progression, cancer therapy, carcinogenesis, reactive oxygen species.
Abstract: Reactive oxygen species (ROS) are a group of highly reactive chemicals under tight control of intracellular antioxidants. The balance in oxidation-antioxidation is essential for maintaining normal cell functions, and any imbalance could lead to a wide range of diseases including cancer. The intracellular level of ROS is generally elevated in cancer cells, revealing a critical role of ROS in the process of carcinogenesis and cancer progression. Conversely, there is also evidence showing that ROS can act as cancer suppressors. This may be due to the varying antioxidant capacities of different cancers. These findings indicate a complex redox state in cancer cells. In this review we summarize the main features of ROS and their functions with respect to cancer initiation, hallmarks of cancer, and signaling in cancer cells. ROSelevating and ROS-depleting anticancer strategies and their mechanisms are thoroughly discussed. We argue that the rationale for therapy choice depends on a complete understanding of cancer cell redox state, namely, the “redox signaling signature” of cancer.
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Cite this article as:
Yang Y., Karakhanova S., Werner J. and Bazhin V. A., Reactive Oxygen Species in Cancer Biology and Anticancer Therapy, Current Medicinal Chemistry 2013; 20 (30) . https://dx.doi.org/10.2174/0929867311320999165
DOI https://dx.doi.org/10.2174/0929867311320999165 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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