期刊
PROGRESS IN NEUROBIOLOGY
卷 169, 期 -, 页码 158-171出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pneurobio.2018.06.010
关键词
Astrocyte; Microglia; Neurodegeneration; Neuroinflammation; Parkinson disease; Protein aggregation; Multiple system atrophy
资金
- National Research Foundation (NRF) grant - Korean Government (MEST) [2015R1A2A1A10052540, 2015R1A2A1A15053661]
- Seoul National University Hospital
Many neurodegenerative diseases are derived from the combined consequences of genetic and environmental factors. One of the common features implicated in the neurodegenerative processes is aggregation of disease specific neuronal proteins. These proteins are accumulated not only directly in neurons, but also indirectly involve glial cells. Whereas the focus of research has been directed towards the impacts of protein aggregation upon neurons, the influence that it exerts on glial cells has been relatively overlooked. Recent studies, however, provide strong evidence on pathogenic responses of glial cells originated from the neuron-derived protein aggregates. Here, we critically examine the latest advancement in investigating how glial cells are activated in neurodegenerative disorders that are associated with a-synuclein aggregates. Often referred to as synucleinopathies, these include Parkinson disease, dementia with Lewy bodies, and multiple system atrophy. To further illustrate, we would discuss paracrine actions of a-synuclein aggregates secreted from neuronal cells in promoting pathogenic reactions from various types of glia and evaluate the non-cell-autonomous mechanism compared to a cell-autonomous one. Such analyses of the impacts of glial responses in neurodegenerative diseases, in the long term, could be further utilized in developing different treatments of the diseases and potentially discovering new drugs.
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