期刊
EXPERIMENTAL NEUROLOGY
卷 308, 期 -, 页码 59-71出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.expneurol.2018.06.016
关键词
MANF; Parkinson's disease; alpha-synuclein; C. elegans; Neuroprotection; Calcium; Autophagy; ER stress
资金
- Chinese Ministry of Science and Technology [2017YFA0103300]
- National Major Scientific and Technological Special Project for Significant New Drugs Development [2014ZX09102043-003]
- National Natural Science Foundation of China [31371489, 31671528, 81371403]
- 1000 Talents Youth Program
- Shanghai Science and Technology Commission [13JC1401102]
Many studies have demonstrated that mesencephalic astrocyte-derived neurotrophic factor (MANF) has been shown protective effects on neurotoxin based models of Parkinson's disease (PD). It still remains unclear whether MANF can rescue dopaminergic (DA) neurons in an a-synuclein model. Glial cell line-derived neurotrophic factor (GDNF) and its related neurturin (NRTN) can protect DA neurons in the neurotoxin but not alpha-synuclein animal models of PD, it failed in the clinical trials. Since alpha-synuclein model can better mimic the progression of human PD, in our study we overexpressed MANF specifically in DA neurons by using an a-synuclein Caenorhabditis elegans (C. elegans) model. Our results showed MANF alleviated progressive neuronal degeneration and prevented locomotion defects. Indeed, MANF can protect cilia of DA neurons at an early stage, suggested that MANF participated in the whole process of neuronal degeneration. Furthermore, we found MANF facilitated the removal of misfolded alpha-synuclein proteins and rescued the function of damaged DA neurons. By using RNAi approach, we inhibited ER stress and autophagy related genes and effects of MANF were decreased, which demonstrated ER stress and autophagy pathways were involved in the MANF-mediated neuroprotection. Our study suggests MANF exhibits potential as a neuroprotective agent for PD therapy.
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