RT Journal Article SR Electronic T1 Reactive Oxygen Species Regulate Activity-Dependent Neuronal Structural Plasticity JF bioRxiv FD Cold Spring Harbor Laboratory SP 081968 DO 10.1101/081968 A1 Matthew C. W. Oswald A1 Paul S. Brooks A1 Maarten F. Zwart A1 Amrita Mukherjee A1 Ryan J. H. West A1 Khomgrit Morarach A1 Sean T. Sweeney A1 Matthias Landgraf YR 2016 UL http://biorxiv.org/content/early/2016/10/19/081968.abstract AB Neurons adjust their excitability, connectivity and structure in response to changes in activity, yet how neurons sense their activity level remains unclear. We have found that motorneurons cell-autonomously monitor their activity by responding to the levels of reactive oxygen species (ROS), a metabolic mitochondrial byproduct. The highly conserved Parkinson's disease-linked protein DJ1b is central to this, acting as a redox sensor to regulate pre- and postsynaptic structural plasticity via activation of the PI3Kinase pathway.