Differential regulation of distinct Vps34 complexes by AMPK in nutrient stress and autophagy.
Differential regulation of distinct Vps34 complexes by AMPK in nutrient stress and autophagy.
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DOI:
10.1016/j.cell.2012.12.016
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发表时间:
2013-01-17
期刊:
影响因子:
64.5
通讯作者:
Guan KL
中科院分区:
文献类型:
--
作者:
Kim J;Kim YC;Fang C;Russell RC;Kim JH;Fan W;Liu R;Zhong Q;Guan KL
Autophagy is a stress response protecting cells from unfavorable conditions, such as nutrient starvation. The class III phosphatidylinositol-3 kinase, Vps34, forms multiple complexes and regulates both intracellular vesicle trafficking and autophagy induction. Here, we show that AMPK plays a key role in regulating different Vps34 complexes. AMPK inhibits the non-autophagy Vps34 complex by phosphorylating T163/S165 in Vps34, therefore suppresses overall PI(3)P production and protects cells from starvation. In parallel, AMPK activates the pro-autophagy Vps34 complex by phosphorylating S91/S94 in Beclin1 to induce autophagy. Atg14L, an autophagy essential gene present only in pro-autophagy Vps 34 complex, inhibits Vps34 phosphorylation but increases Beclin1 phosphorylation by AMPK. As such, Atg14L dictates the differential regulation (either inhibition or activation) of different Vps34 complexes in response to glucose starvation. Our study reveals an intricate molecular regulation of Vps34 complexes by AMPK in nutrient stress response and autophagy.
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影响因子:
5.3
作者:
Obara K;Ohsumi Y
通讯作者:
Ohsumi Y
DOI:
10.1126/science.1196371
发表时间:
2011-01-28
期刊:
Science (New York, N.Y.)
影响因子:
--
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3.5
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通讯作者:
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影响因子:
64.8
作者:
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通讯作者:
Cecconi, Francesco
影响因子:
29
作者:
Gulati, Pawan;Gaspers, Lawrence D.;Thomas, George
通讯作者:
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