Depolarization and Neurotransmitters Increase Neuronal Protein Tyrosine Phosphorylation
Depolarization and Neurotransmitters Increase Neuronal Protein Tyrosine Phosphorylation
复制标题
去极化和神经递质增加神经元蛋白酪氨酸磷酸化
DOI:
10.1046/j.1471-4159.1994.62030950.x
复制
发表时间:
1994
影响因子:
4.7
通讯作者:
J. Girault
中科院分区:
文献类型:
--
作者:
J. Siciliano;M. Gelman;J. Girault
Abstract: In rat hippocampal slices and in neurons in primary culture, K+‐induced depolarization increased markedly and rapidly tyrosine phosphorylation of a 110‐kDa protein (pp110) and, to a lesser degree, of a 120‐kDa protein (pp120), in a calcium‐dependent fashion. Qlutamate, 1‐aminocyclopentane‐trans‐1,3‐dicarboxylic acid (an agonist of metabotropic glutamate receptors), and α‐amino‐3‐hydroxy‐5‐methyl‐4‐isoxazolepropionic acid (an agonist of ionotropic glutamate receptors) stimulated also tyrosine phosphorylation of pp110 and pp120. These effects were not observed in astrocytes in primary culture. In hippocampal slices tyrosine phosphorylation of pp110 and pp120 was stimulated by Ca2+‐ionophores and by phorbol esters and antagonized by a chelator of intracellular Ca2+and by drugs that inhibit protein kinase C. Stimulation of muscarinic and α1,‐adrenergic receptors increased also tyrosine phosphorylation of pp110 and pp120. These results demonstrate that membrane depolarization and stimulation of neurotransmitter receptors activate a tyrosine phosphorylation pathway in neurons. This pathway involves an increase in intracellular Ca2+ concentrations and the activation of protein kinase C. It may provide a biochemical basis for some neurotrophic effects of electrical activity and neurotransmitters and may contribute to the role of tyrosine phosphorylation in long‐term potentiation.
登录
查看更多内容
影响因子:
56.9
作者:
GRANT, SGN;ODELL, TJ;KANDEL, ER
通讯作者:
KANDEL, ER
影响因子:
56.9
作者:
BADING, H;GREENBERG, ME
通讯作者:
GREENBERG, ME
DOI:
10.1073/pnas.84.7.1844
发表时间:
1987
影响因子:
11.1
作者:
Bernier,M;Laird,DM;Lane,MD
通讯作者:
Lane,MD
DOI:
10.1073/pnas.86.7.2498
发表时间:
1989
影响因子:
11.1
作者:
Stratton,KR;Worley,PF;Huganir,RL;Baraban,JM
通讯作者:
Baraban,JM
DOI:
10.1016/0006-291x(82)90635-0
发表时间:
1982
影响因子:
3.1
作者:
Swarup,G;Cohen,S;Garbers,DL
通讯作者:
Garbers,DL