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Emerging perspectives on mitochondrial dysfunction and inflammation in Alzheimer's disease
Seung-Min Yoo1, Jisu Park1, Seo-Hyun Kim1, Yong-Keun Jung1,*
1School of Biological Sciences, Seoul National University, Seoul 08826, Korea
Abstract
Despite enduring diverse insults, mitochondria maintain normal functions through mitochondrial quality control. However, the failure of mitochondrial quality control resulting from excess damage and mechanical defects causes mitochondrial dysfunction, leading to various human diseases. Recent studies have reported that mitochondrial defects are found in Alzheimer’s disease (AD) and worsen AD symptoms. In AD pathogenesis, mitochondrial dysfunction-driven generation of reactive oxygen species (ROS) and their contribution to neuronal damage has been widely studied. In contrast, studies on mitochondrial dysfunction-associated inflammatory responses have been relatively scarce. Moreover, ROS produced upon failure of mitochondrial quality control may be linked to the inflammatory response and influence the progression of AD. Thus, this review will focus on inflammatory pathways that are associated with and initiated through defective mitochondria and will summarize recent progress on the role of mitochondria-mediated inflammation in AD. We will also discuss how reducing mitochondrial dysfunction-mediated inflammation could affect AD.
Abstract, Accepted Manuscript [Submitted on November 7, 2019, Accepted on December 9, 2019]
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