Neuroprotective Effects of Loganin on MPTP-Induced Parkinson's Disease Mice: Neurochemistry, Glial Reaction and Autophagy Studies.
Parkinson's disease (PD) is a progressive neurodegenerative disease, involving resting tremor and bradykinesia, for which no recognized therapies or drugs are available to halt or slow progression. In recent years, natural botanic products have been considered relatively safe, with limited side effects, and are expected to become an important source for clinical mediation of PD in the future. Our study focuses on the ability of loganin, a compound derived from fruits of cornus, to mediate neuroprotection in a mouse model of PD. Mice were administered 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) with a dosage of 30 mg/kg daily for 5 days to establish a subacute PD model and treated with loganin. Locomotor activity was assessed by a pole test, then mice were euthanized at 1 and 3 days after the last treatment, and brain tissue was prepared for subsequent assays. Loganin rescued decrease of dopamine levels and tyrosine hydroxylase (TH) expression in the striatum, and shortened total locomotor activity (TLA) time of mice. Furthermore, loganin alleviated microglia and astrocyte activation, and suppressed TNF-α and caspase-3 expression through a c-Abl-p38-NFκB pathway. Loganin also downregulated LC3-II and Drp1 expression, and decreased the level of acidic vesicular organelles (AVOs). Loganin exerts neuroprotective effects on MPTP-induced PD mice by decreasing inflammation, autophagy, and apoptosis, suggesting that loganin could serve as a therapeutic drug to ameliorate PD. J. Cell. Biochem. 118: 3495-3510, 2017. © 2017 Wiley Periodicals, Inc.
Wuxi Medical School, Jiangnan University, Wuxi 214122, China.
Yi-Da
YD
Xu
Wuxi Medical School, Jiangnan University, Wuxi 214122, China.
Chun
C
Cui
Wuxi Medical School, Jiangnan University, Wuxi 214122, China.
Meng-Fei
MF
Sun
Wuxi Medical School, Jiangnan University, Wuxi 214122, China.
Ying-Li
YL
Zhu
Wuxi Medical School, Jiangnan University, Wuxi 214122, China.
Min
M
Chu
Medical School of Nantong University, Nantong 226019, China.
Yun-Wei
YW
Shi
Department of Cell Biology, Shantou University Medical College, Shantou 515041, China.
Stanley Li
SL
Lin
Wuxi People's Hospital, Wuxi 214023, China.
Xu-Sheng
XS
Yang
Wuxi Medical School, Jiangnan University, Wuxi 214122, China.
Yan-Qin
0000-0003-1724-4135
YQ
Shen
D000818:Animals; D001253:Astrocytes / Q000378:metabolism* / Q000473:pathology; D003342:Corpus Striatum / Q000378:metabolism* / Q000473:pathology; D004298:Dopamine / Q000378:metabolism; D039823:Iridoids / Q000494:pharmacology*; D020267:MPTP Poisoning / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control*; D008297:Male; D051379:Mice; D017628:Microglia / Q000378:metabolism* / Q000473:pathology; D010302:Parkinson Disease, Secondary / Q000139:chemically induced / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control*; D014446:Tyrosine 3-Monooxygenase / Q000378:metabolism
D039823:Iridoids; D014446:Tyrosine 3-Monooxygenase; C059516:loganin; D004298:Dopamine
AUTOPHAGY; INFLAMMATION; LOGANIN; MICE; MPTP; NEUROPROTECTION