Journal
ANTIOXIDANTS & REDOX SIGNALING
Volume 18, Issue 12, Pages 1463-1474Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/ars.2012.4734
Keywords
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Funding
- Swedish Research Council
- Swedish Strategic Science Foundation
- Sigrid Juselius foundation
- European Union
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Significance: An unexpected finding, revealed by positional cloning of genetic polymorphisms controlling models for rheumatoid arthritis, exposed a new function of Ncf1 and NADPH oxidase (NOX) 2 controlled oxidative burst. Recent Advances: A decreased capacity to produce ROS due to a natural polymorphism was found to be the major factor leading to more severe arthritis and increased T cell-dependent autoimmunity. Critical Issues: In the vein of this finding, we here review a possible new role of ROS in regulating inflammatory cell and autoreactive T cell activity. It is postulated that peroxide is an immunologic transmitter secreted by antigen-presenting cells that downregulate the responses by autoreactive T cells. Future Directions: This may operate at different levels of T cell selection and activation: during negative selection in the thymus, priming of T cells in draining lymph nodes, and while interacting with macrophages in peripheral target tissues. Antioxid. Redox Signal. 18, 1463-1474.
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