Growth and metabolic control of lipid signalling at the Golgi.

Growth and metabolic control of lipid signalling at the Golgi.
复制标题

高尔基体脂质信号的生长和代谢控制。

DOI:
10.1042/bst20110637
复制
发表时间:
2012
影响因子:
3.9
通讯作者:
Mayinger,Peter
Mayinger,Peter
中科院分区:
生物学3区
文献类型:
--
作者:
Piao,Hailan;Mayinger,Peter

文献摘要

参考文献

被引文献

相似文献

PtdIns4P是分泌途径的关键调节因子,在高尔基体的运输中起着至关重要的作用。我们最近的工作表明,PtdIns4PAT(内质网)和高尔基体的空间调控与细胞生长协调分泌。这种调节的中心元件是特定的磷脂酰肌醇4-激酶和磷脂酰肌醇磷酸酶SAC1。内质网和高尔基体之间SAC1的生长相关易位调节了高尔基体中PtdIns4P和顺行交通的水平。在酵母中,这一机制在很大程度上依赖于葡萄糖的可获得性,但我们最近在哺乳动物细胞中的结果表明,SAC1磷酸酶在分泌的生长控制中扮演着进化上保守的角色。SAC1脂磷酸酶在PtdIns4Pat高尔基复合体的空间调控中也起着重要的作用。一个有限的PtdIns4PAT池(TGN)对于高尔基体的完整性和正确的脂肪和蛋白质分类是必需的。在哺乳动物细胞中,应激激活的MAPK(丝裂原激活蛋白激酶)p38似乎在将营养信号传递到内质网和高尔基体的磷脂酰肌醇信号机制中发挥关键作用。这些结果表明,高尔基体代谢和脂质信号网络的时空整合是控制分泌途径所必需的。
PtdIns4Pis a key regulator of the secretory pathway and plays an essential role in trafficking from the Golgi. Our recent work demonstrated that spatial control of PtdIns4Pat the ER (endoplasmic reticulum) and Golgi co-ordinates secretion with cell growth. The central elements of this regulation are specific phosphoinositide 4-kinases and the phosphoinositide phosphatase Sac1. Growth-dependent translocation of Sac1 between the ER and Golgi modulates the levels of PtdIns4Pand anterograde traffic at the Golgi. In yeast, this mechanism is largely dependent on the availability of glucose, but our recent results in mammalian cells suggest that Sac1 phosphatases play evolutionarily conserved roles in the growth control of secretion. Sac1 lipid phosphatase plays also an essential role in the spatial control of PtdIns4Pat the Golgi complex. A restricted pool of PtdIns4Pat the TGN (trans-Golgi network) is required for Golgi integrity and for proper lipid and protein sorting. In mammalian cells, the stress-activated MAPK (mitogen-activated protein kinase) p38 appears to play a critical role in transmitting nutrient signals to the phosphoinositide signalling machinery at the ER and Golgi. These results suggest that temporal and spatial integration of metabolic and lipid signalling networks at the Golgi is required for controlling the secretory pathway.
DOI: --
发表时间: 1988-11
期刊: The Journal of biological chemistry
影响因子: --
作者:
P. Orlean;C. Albright;P. Robbins
通讯作者: P. Orlean;C. Albright;P. Robbins
DOI: 10.1016/s0960-9822(01)00449-3
发表时间: 2001-09-18
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Schorr, M;Then, A;Mayinger, P
通讯作者: Mayinger, P
酵母 TOR 信号传导:代谢调节机制。
DOI: --
发表时间: 2004
影响因子: --
作者:
T. Powers;I. Dilova;C. Chen;K. Wedaman
通讯作者: K. Wedaman
DOI: 10.1111/j.1600-0854.2004.00255.x
发表时间: 2005-02-01
期刊: TRAFFIC
影响因子: 4.5
作者:
Tahirovic, S;Schorr, M;Mayinger, P
通讯作者: Mayinger, P
DOI: 10.1007/s00018-008-8353-2
发表时间: 2008-09-01
影响因子: 8
作者:
Vicinanza, M.;D'Angelo, G.;De Matteis, M. A.
通讯作者: De Matteis, M. A.