MyosinV controls PTEN function and neuronal cell size.
MyosinV controls PTEN function and neuronal cell size.
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DOI:
10.1038/ncb1961
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发表时间:
2009-10
影响因子:
21.3
通讯作者:
Eickholt, Britta J.
中科院分区:
文献类型:
--
作者:
van Diepen, Michiel T.;Parsons, Maddy;Downes, C. Peter;Leslie, Nicholas R.;Hindges, Robert;Eickholt, Britta J.
The tumour suppressor PTEN can inhibit proliferation and migration as well as control cell growth in different cell types. PTEN functions predominately as a lipid phsophatase, converting PI(3,4,5)P3 to PI(4,5)P2, thereby antagonizing PI3K (Phosphoinositide 3-kinase) and its established downstream effector pathways. However, much is unclear concerning the mechanisms that regulate PTEN movement to the cell membrane necessary for PTEN’s activity towards PI(3,4,5)P3. Here we show a requirement for functional motor proteins in the control of PI3K signalling, involving a previously unknown association between PTEN and MyosinV. FRET measurements revealed that PTEN interacts directly with MyosinV, dependent on PTEN phosphorylation mediated by CK2 and/or GSK3. Inactivation of MyosinV-transport function in neurons increased cell size, which – in line with known attributes of PTEN-loss - required PI3K and mTor. Our data demonstrate a myosin-based transport mechanism regulating PTEN function, providing new insights into the signalling networks regulating cell growth.
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影响因子:
2.7
作者:
Saito, T;Nakatsuji, N
通讯作者:
Nakatsuji, N
影响因子:
11.4
作者:
Takahashi, Y;Morales, FC;Georgescu, MM
通讯作者:
Georgescu, MM
DOI:
10.1073/pnas.0510570103
发表时间:
2006-03-07
影响因子:
11.1
作者:
Vazquez, F;Matsuoka, S;Devreotes, PN
通讯作者:
Devreotes, PN
影响因子:
7.8
作者:
Espreafico, E M;Cheney, R E;Matteoli, M;Nascimento, A A;De Camilli, P V;Larson, R E;Mooseker, M S
通讯作者:
Mooseker, M S
影响因子:
1.6
作者:
Brown, JR;Peacock-Villada, EM;Langford, GM
通讯作者:
Langford, GM