Rapamycin activation of 4E-BP prevents parkinsonian dopaminergic neuron loss.
Rapamycin activation of 4E-BP prevents parkinsonian dopaminergic neuron loss.
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DOI:
10.1038/nn.2372
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发表时间:
2009-09
影响因子:
25
通讯作者:
Whitworth AJ
中科院分区:
文献类型:
--
作者:
Tain LS;Mortiboys H;Tao RN;Ziviani E;Bandmann O;Whitworth AJ
Mutations in PINK1 and parkin cause autosomal recessive parkinsonism, a neurodegenerative disorder characterized by the loss of dopaminergic neurons. To highlight potential therapeutic pathways we have identified factors that genetically interact with parkin/PINK1. Here we report that overexpression of the translation inhibitor 4E-BP can suppress all pathologic phenotypes including degeneration of dopaminergic neurons in Drosophila. 4E-BP is activated in vivo by the TOR inhibitor rapamycin, which we find can potently suppress pathology in PINK1/parkin mutants. Rapamycin also ameliorates mitochondrial defects in cells from parkin-mutant patients. Recently, 4E-BP was shown to be inhibited by the most common cause of parkinsonism, dominant mutations in LRRK2. Here we further show that loss of the Drosophila LRRK2 homolog activates 4E-BP and is also able to suppress PINK1/parkin pathology. Thus, in conjunction with recent findings our results suggest that pharmacologic stimulation of 4E-BP activity may represent a viable therapeutic approach for multiple forms of parkinsonism.
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影响因子:
25
作者:
Li, Yanping;Liu, Wencheng;Oo, Tinmarla F.;Wang, Lei;Tang, Yi;Jackson-Lewis, Vernice;Zhou, Chun;Geghman, Kindiya;Bogdanov, Mikhail;Przedborski, Serge;Beal, M. Flint;Burke, Robert E.;Li, Chenjian
通讯作者:
Li, Chenjian
影响因子:
9.2
作者:
Kapahi, P;Zid, BM;Benzer, S
通讯作者:
Benzer, S
影响因子:
3.5
作者:
Gloeckner, CJ;Kinkl, N;Ueffing, M
通讯作者:
Ueffing, M
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8.6
作者:
Müftüoglu, M;Elibol, B;Özer, N
通讯作者:
Özer, N
DOI:
10.1073/pnas.100391597
发表时间:
2000-05-23
影响因子:
11.1
作者:
Bernal, A;Kimbrell, DA
通讯作者:
Kimbrell, DA