Redox Regulation of NLRP3 Inflammasomes: ROS as Trigger or Effector?

作者：Justine M. Abais, Min Xia, Yang Zhang, Krishna M. Boini, Pin-Lan Li · 发表于：Antioxidants and Redox Signaling · 年份：2014 · DOI：10.1089/ars.2014.5994 · 被引用次数：941 · 研究领域：Inflammasome and immune disorders、Heme Oxygenase-1 and Carbon Monoxide、Calcium signaling and nucleotide metabolism

SIGNIFICANCE: Inflammasomes are multiprotein complexes localized within the cytoplasm of the cell that are responsible for the maturation of proinflammatory cytokines such as interleukin-1β (IL-1β) and IL-18, and the activation of a highly inflammatory form of cell death, pyroptosis. In response to infection or cellular stress, inflammasomes are assembled, activated, and involved in host defense and pathophysiology of diseases. Clarification of the molecular mechanisms leading to the activation of this intracellular inflammatory machinery may provide new insights into the concept of inflammation as the root of and route to human diseases. RECENT ADVANCES: The activation of inflammasomes, specifically the most fully characterized inflammasome-the nucleotide-binding oligomerization domain (NOD)-like receptor containing pyrin domain 3 (NLRP3) inflammasome, is now emerging as a critical molecular mechanism for many degenerative diseases. Several models have been developed to describe how NLRP3 inflammasomes are activated, including K(+) efflux, lysosome function, endoplasmic reticulum (ER) stress, intracellular calcium, ubiquitination, microRNAs, and, in particular, reactive oxygen species (ROS). CRITICAL ISSUES: ROS may serve as a "kindling" or triggering factor to activate NLRP3 inflammasomes as well as "bonfire" or "effector" molecules, resulting in pathological processes. Increasing evidence seeks to understand how this spatiotemporal action of ROS occurs during NLRP3 inflamm...