دورية أكاديمية
Oxidative stress and antioxidants in the pathophysiology of malignant melanoma.
| العنوان: | Oxidative stress and antioxidants in the pathophysiology of malignant melanoma. |
|---|---|
| المؤلفون: | Obrador, Elena1 (AUTHOR), Liu-Smith, Feng2,3 (AUTHOR), Dellinger, Ryan W.4 (AUTHOR), Salvador, Rosario1 (AUTHOR), Meyskens, Frank L.2,3,5 (AUTHOR), Estrela, José M.1 (AUTHOR) jose.m.estrela@uv.es |
| المصدر: | Biological Chemistry. Apr2019, Vol. 400 Issue 5, p589-612. 24p. 2 Diagrams, 1 Chart, 1 Graph. |
| مصطلحات موضوعية: | *OXIDATIVE stress, *MELANOMA, *REACTIVE nitrogen species, *OXYGEN in the body, *PATHOLOGICAL physiology, *ULTRAVIOLET radiation |
| مستخلص: | The high number of somatic mutations in the melanoma genome associated with cumulative ultra violet (UV) exposure has rendered it one of the most difficult of cancers to treat. With new treatment approaches based on targeted and immune therapies, drug resistance has appeared as a consistent problem. Redox biology, including reactive oxygen and nitrogen species (ROS and RNS), plays a central role in all aspects of melanoma pathophysiology, from initiation to progression and to metastatic cells. The involvement of melanin production and UV radiation in ROS/RNS generation has rendered the melanocytic lineage a unique system for studying redox biology. Overall, an elevated oxidative status has been associated with melanoma, thus much effort has been expended to prevent or treat melanoma using antioxidants which are expected to counteract oxidative stress. The consequence of this redox-rebalance seems to be two-fold: on the one hand, cells may behave less aggressively or even undergo apoptosis; on the other hand, cells may survive better after being disseminated into the circulating system or after drug treatment, thus resulting in metastasis promotion or further drug resistance. In this review we summarize the current understanding of redox signaling in melanoma at cellular and systemic levels and discuss the experimental and potential clinic use of antioxidants and new epigenetic redox modifiers. [ABSTRACT FROM AUTHOR] |
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