Differential effects of UCHL1 modulation on alpha-synuclein in PD-like models of alpha-synucleinopathy.
Differential effects of UCHL1 modulation on alpha-synuclein in PD-like models of alpha-synucleinopathy.
复制标题
UCHL1调制对α-链核病模型中α-核蛋白的差异作用。
DOI:
10.1371/journal.pone.0034713
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Masliah E
中科院分区:
文献类型:
--
作者:
Cartier AE;Ubhi K;Spencer B;Vazquez-Roque RA;Kosberg KA;Fourgeaud L;Kanayson P;Patrick C;Rockenstein E;Patrick GN;Masliah E
Parkinson's disease (PD) is a progressive neurodegenerative disorder caused by genetic and environmental factors. Abnormal accumulation and aggregation of alpha-synuclein (a-syn) within neurons, and mutations in the a-syn and UCH-L1 genes have been shown to play a role in the pathogenesis of PD. In light of recent reports suggesting an interaction between a-synuclein and UCH-L1, we investigated the effects of UCH-L1 inhibition on a-syn distribution and expression levels in primary neurons and hippocampal tissues derived from non transgenic (non tg) and a-syn over expressing tg mice. We show that suppression of UCH-L1 activity increased a-syn levels in control, non tg neurons, and resulted in a concomitant accumulation of presynaptic a-syn in these neurons. In contrast, blocking UCH-L1 activity in a-syn over expressing neurons decreased a-syn levels, and enhanced its synaptic clearance. In vitro studies verified the LDN-induced inhibition of UCH-L1 had minimal effect on LC3 (a marker of autophagy) in control cells, in cells over expressing a-syn UCH-L1 inhibition resulted in increased LC3 activity. These findings suggest a possible differential role of UCH-L1 function under normal and pathological conditions. Furthermore, in the context of a-syn-induced pathology, modulation of UCH-L1 activity could serve as a therapeutic tool to enhance the autophagy pathway and induce clearance of the observed accumulated/aggregated a-syn species in the PD brain.
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DOI:
10.1523/jneurosci.1817-09.2009
发表时间:
2009-06-17
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Cartier AE;Djakovic SN;Salehi A;Wilson SM;Masliah E;Patrick GN
通讯作者:
Patrick GN
影响因子:
4.8
作者:
Aarsland, Dag;Beyer, Mona K.;Kurz, Martin W.
通讯作者:
Kurz, Martin W.
影响因子:
64.5
作者:
Liu, YC;Fallon, L;Lansbury, PT
通讯作者:
Lansbury, PT
影响因子:
13.3
作者:
Ichimura, Yoshinobu;Kominami, Eiki;Komatsu, Masaaki
通讯作者:
Komatsu, Masaaki
影响因子:
64.5
作者:
Gong, Bing;Cao, Zixuan;Arancio, Ottavio
通讯作者:
Arancio, Ottavio