Redox regulation of Wnt signalling via nucleoredoxin.
Numerous studies indicate that reactive oxygen species (ROS) are not merely cellular by-products of respiration, but are able to modulate various signalling pathways and play certain physiological roles. Recent studies have revealed the importance of translating ROS-generation to activation/suppression of specific signalling pathways. The Wnt signalling pathway, which is essential for early development and stem cell maintenance, is also regulated by ROS. A thioredoxin-related protein, nucleoredoxin (NRX), governs ROS-stimulated Wnt signalling in a temporal manner. NRX usually interacts with Dishevelled (Dvl), an essential adaptor protein for Wnt signalling, and blocks the activation of the Wnt pathway. Oxidative stress causes dissociation of NRX from Dvl, which enables Dvl to activate the downstream Wnt signalling pathway. This study also presents the latest research findings on NRX and its related molecules.
Funato
Yosuke
Y
Laboratory of Intracellular Signaling, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan. yfunato@protein.osaka-u.ac.jp
Miki
Hiroaki
H
D048868:Adaptor Proteins, Signal Transducing / Q000378:metabolism; D000595:Amino Acid Sequence; D000818:Animals; D000072261:Dishevelled Proteins; D018507:Gene Expression Regulation, Developmental; D006801:Humans; D008969:Molecular Sequence Data; D009687:Nuclear Proteins / Q000235:genetics / Q000378:metabolism*; D010084:Oxidation-Reduction; D010088:Oxidoreductases / Q000235:genetics / Q000378:metabolism*; D010750:Phosphoproteins / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism*; D015398:Signal Transduction / Q000235:genetics; D051153:Wnt Proteins / Q000378:metabolism*; D051176:beta Catenin / Q000378:metabolism
D048868:Adaptor Proteins, Signal Transducing; D000072261:Dishevelled Proteins; D009687:Nuclear Proteins; D010750:Phosphoproteins; D017382:Reactive Oxygen Species; D051153:Wnt Proteins; D051176:beta Catenin; D010088:Oxidoreductases; C105231:nucleoredoxin