Abstract:
BACKGROUND:Previous studies demonstrate that indirect activation of monoamine receptors by antidepressant treatment increases neurotrophic factors that activate the mitogen-activated protein kinase cascade; however, it is also possible that these monoamine receptors influence the mitogen-activated protein kinase pathway independent of neurotrophic factors. The influence of norepinephrine on the phosphorylation of extracellular-regulated protein kinase is characterized. METHODS:Primary cerebral cortical cultures were prepared from embryonic day 18 rat brains and were subsequently incubated with norepinephrine in the absence or presence of agents acting as noradrenergic receptors or as intracellular signaling proteins. Levels of phosphorylated extracellular-regulated protein kinase were determined by immunoblot. RESULTS:The results demonstrate that incubation with norepinephrine produces a time- and dose-dependent activation of phosphorylated extracellular-regulated protein kinase and that this increase is dependent on activation of alpha(2)- and beta-adrenergic receptor subtypes. In addition, the results demonstrate that norepinephrine activation of phosphorylated extracellular-regulated protein kinase is dependent on a pertussis toxin-sensitive G protein, a receptor tyrosine kinase, and activation of phosphatidylinositol 3-kinase. CONCLUSIONS:The findings suggest that activation of the mitogen-activated protein kinase cascade by norepinephrine can occur via a tyrosine kinase-dependent signaling pathway but independent of classical second-messenger or Src-dependent kinases.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Tolbert LM,Russell DS,Duman RSdoi
10.1016/s0006-3223(03)00346-9subject
Has Abstractpub_date
2003-11-15 00:00:00pages
983-93issue
10eissn
0006-3223issn
1873-2402pii
S0006322303003469journal_volume
54pub_type
杂志文章abstract::Psychiatric disorders show high rates of comorbidity and nonspecificity of presenting clinical symptoms, while demonstrating substantial heterogeneity within diagnostic categories. Notably, many of these psychiatric disorders first manifest in youth. We review progress and next steps in efforts to parse heterogeneity ...
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journal_title:Biological psychiatry
pub_type: 杂志文章
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pub_type: 临床试验,杂志文章,随机对照试验
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doi:10.1016/j.biopsych.2006.06.036
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pub_type: 杂志文章
doi:10.1016/j.biopsych.2011.06.016
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pub_type: 杂志文章,多中心研究,随机对照试验
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pub_type: 杂志文章
doi:
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
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journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(99)00033-5
更新日期:1999-06-15 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章,meta分析
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pub_type: 杂志文章
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更新日期:2010-06-01 00:00:00
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journal_title:Biological psychiatry
pub_type: 杂志文章
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更新日期:1991-03-15 00:00:00
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pub_type: 杂志文章,meta分析
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