期刊
FREE RADICAL BIOLOGY AND MEDICINE
卷 49, 期 9, 页码 1342-1353出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.freeradbiomed.2010.07.027
关键词
Free radicals; Nox enzymes; Duox enzymes; Tyrosine cross-linking; Reactive oxygen; Stress response
资金
- NIH [CA084138, CA105116]
- EHS [ES011163]
- PAPIIT-UNAM [IN201709]
- CONACYT [49667Q]
The production of reactive oxygen species (ROS) in a highly regulated fashion is a hallmark of members of the NADPH oxidase (Nox) family of enzymes. Nox enzymes are present in most eukaryotic groups such as the amebozoid, fungi, algae and plants, and animals, in which they are involved in seemingly diverse biological processes. However, a comprehensive survey of Nox functions throughout biology reveals common functional themes. Noxes are often activated in response to stressful conditions such as nutrient starvation, physical damage, or pathogen attack Although the end result varies depending on the organism and tissue, Nox-produced ROS mediate the response to the adverse stimuli, such as innate immunity responses in plants and animals or cell differentiation in Dictyostelium, fungi, and plants. These responses involve ROS-mediated signaling mechanisms occurring at intracellular or cell-to-cell levels and sometimes involve cell wall or extracellular matrix cross-linking. Indeed, Noxes are involved in local and systemic signaling from plants to fish and in cross-linking of the plant hair-cell wall, synthesis of the nematode cuticle, and formation of the sea urchin fertilization envelope. The extensive use of Nox enzymes in biology to regulate cell-to-cell signaling and morphogenesis suggests that additional functions in mammalian signaling and development remain to be discovered. (C) 2010 Elsevier Inc. All rights reserved.
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