Cellular function of p70S6K:: A role in regulating cell motility

被引:79
作者
Berven, LA [1 ]
Crouch, MF [1 ]
机构
[1] Australian Natl Univ, John Curtin Sch Med Res, Div Neurosci, Mol Signalling Grp, Canberra, ACT 2601, Australia
关键词
cytoskeleton; migration; p70S6K;
D O I
10.1046/j.1440-1711.2000.00928.x
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The 70 kDa ribosomal S6 kinase (p70(S6K)) is activated by numerous mitogens, growth factors and hormones. Activation of p70(S6K) occurs through phosphorylation at a number of sites and the primary target of the activated kinase is the 40S ribosomal protein S6, a major component of the machinery involved in protein synthesis in mammalian cells. In addition to its involvement in regulating translation, p70(S6K) activation has been implicated in cell cycle control and neuronal cell differentiation. Recent data obtained in this laboratory suggests that p70(S6K) may also function in regulating cell motility, a cellular response that is important in tumour metastases, the immune response and tissue repair. The present paper reviews the regulation and cellular function of p70(S6K) and proposes a novel function of p70(S6K) in regulating cell motility.
引用
收藏
页码:447 / 451
页数:5
相关论文
共 42 条
[1]   3 Phosphoinositide-dependent protein kinase 1 (PDK1) phosphorylates and activates the p70 S6 kinase in vivo and in vitro [J].
Alessi, DR ;
Kozlowski, MT ;
Weng, QP ;
Morrice, N ;
Avruch, J .
CURRENT BIOLOGY, 1998, 8 (02) :69-81
[2]   Nitric oxide donors selectively potentiate thrombin-stimulated p70S6k activity and morphological changes in Swiss 3T3 cells [J].
Berven, LA ;
Frew, IJ ;
Crouch, MF .
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1999, 266 (02) :352-360
[3]   PROTEIN-KINASE-B (C-AKT) IN PHOSPHATIDYLINOSITOL-3-OH INASE SIGNAL-TRANSDUCTION [J].
BURGERING, BMT ;
COFFER, PJ .
NATURE, 1995, 376 (6541) :599-602
[4]   Neurabin is a synaptic protein linking p70 S6 kinase and the neuronal cytoskeleton [J].
Burnett, PE ;
Blackshaw, S ;
Lai, MM ;
Qureshi, IA ;
Burnett, AF ;
Sabatini, DM ;
Snyder, SH .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (14) :8351-8356
[5]   RAFT1 phosphorylation of the translational regulators p70 S6 kinase and 4E-BP1 [J].
Burnett, PE ;
Barrow, RK ;
Cohen, NA ;
Snyder, SH ;
Sabatini, DM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (04) :1432-1437
[6]   The 70 kDa S6 kinase complexes with and is activated by the Rho family G proteins Cdc42 and Rac1 [J].
Chou, MM ;
Blenis, J .
CELL, 1996, 85 (04) :573-583
[7]   THE 70-KDA S6-KINASE - REGULATION OF A KINASE WITH MULTIPLE ROLES IN MITOGENIC SIGNALING [J].
CHOU, MM ;
BLENIS, J .
CURRENT OPINION IN CELL BIOLOGY, 1995, 7 (06) :806-814
[8]   Insulin induces epidermal growth factor (EGF) receptor clustering and potentiates EGF-stimulated DNA synthesis in Swiss 3T3 cells: A mechanism for costimulation in mitogenic synergy [J].
Crouch, MF ;
Davy, DA ;
Willard, FS ;
Berven, LA .
IMMUNOLOGY AND CELL BIOLOGY, 2000, 78 (04) :408-414
[9]   Regulation of thrombin-induced stress fibre formation in Swiss 3T3 cells by the 70-kDa S6 kinase [J].
Crouch, MF .
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1997, 233 (01) :193-199
[10]   Role of phosphatidylinositol 3,4,5-trisphosphate in regulating the activity and localization of 3-phosphoinositide-dependent protein kinase-1 [J].
Currie, RA ;
Walker, KS ;
Gray, A ;
Deak, M ;
Casamayor, A ;
Downes, CP ;
Cohen, P ;
Alessi, DR ;
Lucocq, J .
BIOCHEMICAL JOURNAL, 1999, 337 :575-583