Skeletal muscle contractile activity in vitro stimulates mitogen-activated protein kinase signaling.
Skeletal muscle contractile activity in vitro stimulates mitogen-activated protein kinase signaling.
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体外骨骼肌收缩活动刺激有丝分裂原激活的蛋白激酶信号传导。
DOI:
10.1152/ajpcell.1999.277.4.c701
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Goodyear,LJ
中科院分区:
文献类型:
--
作者:
Hayashi,T;Hirshman,MF;Dufresne,SD;Goodyear,LJ
Physical exercise is a potent stimulator of mitogen-activated protein (MAP) kinase signaling. To determine if this activation is secondary to systemic responses to exercise or due to muscle contractile activity per se, an isolated muscle preparation was developed. Contractile activity in vitro significantly increased p44MAPKand p42MAPKphosphorylation by 2.9- and 2.4-fold, respectively. Contraction-stimulated MAP kinase phosphorylation was not decreased in the presence ofd-tubocurarine or calphostin C, suggesting that neither neurotransmitter release nor diacylglycerol-sensitive protein kinase C mediates the contraction-induced activation of this signaling cascade. However, PD-98059, an inhibitor of MAP kinase kinase (MEK), inhibited the contraction-induced increases in MAP kinase phosphorylation. PD-98059 did not alter contraction-induced increases in glucose uptake or glycogen synthase activity, demonstrating that MAP kinase signaling is not necessary for these important metabolic effects of contractile activity in skeletal muscle. These data suggest that contractile activity of the skeletal muscle fibers per se, and not responses to neurotransmitter release, hormones, or other systemic factors, is responsible for the stimulation of MAP kinase signaling with physical exercise.
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DOI:
10.1152/ajpcell.1993.265.6.c1597
发表时间:
1993-12
期刊:
The American journal of physiology
影响因子:
--
作者:
P. Neufer;G. Dohm
通讯作者:
P. Neufer;G. Dohm
DOI:
10.1152/ajpendo.1996.271.2.e403
发表时间:
1996-08-01
影响因子:
5.1
作者:
Goodyear, LJ;Chang, PY;Moller, DE
通讯作者:
Moller, DE
影响因子:
8.3
作者:
Force, T;Bonventre, JV
通讯作者:
Bonventre, JV
DOI:
10.1042/bj2950351
发表时间:
1993
期刊:
The Biochemical journal
影响因子:
--
作者:
N. W. Merrall;R. Plevin;D. Stokoe;P. Cohen;A. Nebreda;G. Gould
通讯作者:
G. Gould
影响因子:
64.8
作者:
J. Bergström;E. Hultman
通讯作者:
E. Hultman