α-Synuclein impairs macroautophagy: implications for Parkinson's disease.
α-Synuclein impairs macroautophagy: implications for Parkinson's disease.
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DOI:
10.1083/jcb.201003122
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发表时间:
2010-09-20
期刊:
影响因子:
--
通讯作者:
Rubinsztein DC
中科院分区:
文献类型:
--
作者:
Winslow AR;Chen CW;Corrochano S;Acevedo-Arozena A;Gordon DE;Peden AA;Lichtenberg M;Menzies FM;Ravikumar B;Imarisio S;Brown S;O'Kane CJ;Rubinsztein DC
α-Synuclein impairs autophagosome formation and mislocalizes Atg9 by inhibiting Rab1a. Parkinson’s disease (PD) is characterized pathologically by intraneuronal inclusions called Lewy bodies, largely comprised of α-synuclein. Multiplication of the α-synuclein gene locus increases α-synuclein expression and causes PD. Thus, overexpression of wild-type α-synuclein is toxic. In this study, we demonstrate that α-synuclein overexpression impairs macroautophagy in mammalian cells and in transgenic mice. Our data show that α-synuclein compromises autophagy via Rab1a inhibition and Rab1a overexpression rescues the autophagy defect caused by α-synuclein. Inhibition of autophagy by α-synuclein overexpression or Rab1a knockdown causes mislocalization of the autophagy protein, Atg9, and decreases omegasome formation. Rab1a, α-synuclein, and Atg9 all regulate formation of the omegasome, which marks autophagosome precursors.
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DOI:
10.1083/jcb.200412022
发表时间:
2005-05-09
期刊:
The Journal of cell biology
影响因子:
--
作者:
Komatsu M;Waguri S;Ueno T;Iwata J;Murata S;Tanida I;Ezaki J;Mizushima N;Ohsumi Y;Uchiyama Y;Kominami E;Tanaka K;Chiba T
通讯作者:
Chiba T
DOI:
10.1083/jcb.152.3.519
发表时间:
2001-02-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kihara A;Noda T;Ishihara N;Ohsumi Y
通讯作者:
Ohsumi Y
影响因子:
64.8
作者:
Kuma, A;Hatano, M;Mizushima, N
通讯作者:
Mizushima, N
影响因子:
3.3
作者:
Alvarez, C;Garcia-Mata, R;Sztul, E
通讯作者:
Sztul, E
影响因子:
4.1
作者:
Furlong, RA;Narain, Y;Rubinsztein, DC
通讯作者:
Rubinsztein, DC