Small molecules enhance autophagy and reduce toxicity in Huntington's disease models.
Small molecules enhance autophagy and reduce toxicity in Huntington's disease models.
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DOI:
10.1038/nchembio883
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发表时间:
2007-06
影响因子:
14.8
通讯作者:
Rubinsztein, David C.
中科院分区:
文献类型:
--
作者:
Sarkar, Sovan;Perlstein, Ethan O.;Imarisio, Sara;Pineau, Sandra;Cordenier, Axelle;Maglathlin, Rebecca L.;Webster, John A.;Lewis, Timothy A.;O'Kane, Cahir J.;Schreiber, Stuart L.;Rubinsztein, David C.
The target of rapamycin (TOR) proteins regulate various cellular processes including autophagy, which may play a protective role in certain neurodegenerative and infectious diseases. Here we show that a primary small-molecule screen in yeast yields novel small-molecules modulators of mammalian autophagy. We first identified novel small-molecule enhancers (SMER) and inhibitors (SMIR) of the cytostatic effects of rapamycin in Saccharomyces cerevisiae. Three SMERs induced autophagy independently of rapamycin in mammalian cells, enhancing the clearance of autophagy substrates like mutant huntingtin and A53T α-synuclein, associated with Huntington’s disease (HD) and familial Parkinson’s disease, respectively. These SMERs, which appear to act either independently, or downstream, of TOR, attenuated mutant huntingtin-fragment toxicity in HD cell and Drosophila models, suggesting therapeutic potential. We also screened structural analogs of these SMERs and identified additional candidate drugs enhancing autophagy. Thus, we have demonstrated proof-of-principle for a novel approach for discovery of small-molecule modulators of mammalian autophagy.
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DOI:
10.1083/jcb.152.4.657
发表时间:
2001-02-19
期刊:
The Journal of cell biology
影响因子:
--
作者:
Mizushima N;Yamamoto A;Hatano M;Kobayashi Y;Kabeya Y;Suzuki K;Tokuhisa T;Ohsumi Y;Yoshimori T
通讯作者:
Yoshimori T
影响因子:
4.7
作者:
EKSTROM, P;KANJE, M
通讯作者:
KANJE, M
影响因子:
3.5
作者:
Ravikumar, B;Duden, R;Rubinsztein, DC
通讯作者:
Rubinsztein, DC
影响因子:
30.8
作者:
Ravikumar, B;Vacher, C;Rubinsztein, DC
通讯作者:
Rubinsztein, DC
影响因子:
7.8
作者:
Sarkar, Sovan;Floto, R Andres;Berger, Zdenek;Imarisio, Sara;Cordenier, Axelle;Pasco, Matthieu;Cook, Lynnette J;Rubinsztein, David C
通讯作者:
Rubinsztein, David C