Definition
Oxidative stress is caused by an imbalance between the production of reactive oxygen and a biological system’s ability to readily detoxify the reactive intermediates or easily repair the resulting damage. It is defined as a disturbance in the prooxidant–antioxidant balance in favor of the former leading to potential damage. Oxidative stress is believed to contribute to the development of several diseases, including cancer.
Characteristics
The complex of oxidative stress involves a number of cell-chemical elements:
Free radicals include any species that contain one or more unpaired electrons, generating electrons singly occupying an atomic or molecular orbital. The presence of unpaired electrons confers a considerable degree of reactivity upon a free radical. Dioxygen is the main source of intracellular free radicals.
Reactive oxygen species (ROS) is a collective term that includes both oxygen free radicals such as superoxide anion (O2 −) and hydroxyl radical (OH•) and other...
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References
Alexandre J, Nicco C, Chereau C et al (2006) Improvement of the therapeutic index of anticancer drugs by the superoxide dismutase mimic mangafodipir. J Natl Cancer Inst 98:236–244
Benhar M, Engelberg D, Levitzki A (2002) ROS, stress-activated kinases and stress signaling in cancer. EMBO Rep 3:420–425
Halliwell B, Gutteridge J (1999) Free radicals in biology and medicine. Oxford University Press, New York
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Nicco C, Laurent A, Chereau C et al (2005) Differential modulation of normal and tumor cell proliferation by reactive oxygen species. Biomed Pharmacother 59:169–174
See Also
(2012) Antioxidant. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 216. doi:10.1007/978-3-642-16483-5_328
(2012) Arsenic Trioxide. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 285. doi:10.1007/978-3-642-16483-5_404
(2012) Free Radicals. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 1454. doi:10.1007/978-3-642-16483-5_2267
(2012) MAPK. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2167. doi:10.1007/978-3-642-16483-5_3532
(2012) Multidrug Resistance. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2393. doi:10.1007/978-3-642-16483-5_3887
(2012) Mutagenic. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2412. doi:10.1007/978-3-642-16483-5_3909
(2012) NADPH Oxidase. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2448. doi:10.1007/978-3-642-16483-5_3959
(2012) NIH-3T3 Cells. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2520. doi:10.1007/978-3-642-16483-5_4084
(2012) Superoxide Dismutase. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 3563. doi:10.1007/978-3-642-16483-5_5579
(2012) Transformation. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, pp 3757–3758. doi:10.1007/978-3-642-16483-5_5913
(2012) VEGF. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 3906. doi:10.1007/978-3-642-16483-5_6174
(2012) Xanthine Oxidase. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 3963. doi:10.1007/978-3-642-16483-5_6270
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Alexandre, J., Nicco, C., Batteux, F. (2014). Oxidative Stress. In: Schwab, M. (eds) Encyclopedia of Cancer. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27841-9_4309-2
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DOI: https://doi.org/10.1007/978-3-642-27841-9_4309-2
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