AUTHOR=Zheng Qiuyang , Huang Timothy , Zhang Lishan , Zhou Ying , Luo Hong , Xu Huaxi , Wang Xin TITLE=Dysregulation of Ubiquitin-Proteasome System in Neurodegenerative Diseases JOURNAL=Frontiers in Aging Neuroscience VOLUME=8 YEAR=2016 URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2016.00303 DOI=10.3389/fnagi.2016.00303 ISSN=1663-4365 ABSTRACT=

The ubiquitin-proteasome system (UPS) is one of the major protein degradation pathways, where abnormal UPS function has been observed in cancer and neurological diseases. Many neurodegenerative diseases share a common pathological feature, namely intracellular ubiquitin-positive inclusions formed by aggregate-prone neurotoxic proteins. This suggests that dysfunction of the UPS in neurodegenerative diseases contributes to the accumulation of neurotoxic proteins and to instigate neurodegeneration. Here, we review recent findings describing various aspects of UPS dysregulation in neurodegenerative disorders such as Alzheimer’s disease, Parkinson’s disease, and Huntington’s disease.