Suppr超能文献

表皮生长因子(EGF)和氯化钾(KCl)去极化对PC12细胞神经突生长的刺激作用:一种不依赖钙离子(Ca(2+))的现象

Stimulation of neurite outgrowth in PC12 cells by EGF and KCl depolarization: a Ca(2+)-independent phenomenon.

作者信息

Mark M D, Liu Y, Wong S T, Hinds T R, Storm D R

机构信息

Department of Pharmacology, University of Washington, Seattle 98195, USA.

出版信息

J Cell Biol. 1995 Aug;130(3):701-10. doi: 10.1083/jcb.130.3.701.

Abstract

MAP kinase activity is necessary for growth factor induction of neurite outgrowth in PC12 cells. Although NGF and EGF both stimulate MAP kinase activity, EGF does not stimulate neurite extension. We report that EGF, in combination with KCl, stimulates neurite outgrowth in PC12 cells. This phenomenon was independent of intracellular Ca2+ increases and not due to enhancement of MAP kinase activity over that seen with EGF alone. However, EGF plus KCl increased intracellular cAMP, and other cAMP elevating agents acted synergistically with EGF to promote neurite outgrowth. Stimulation of neurite outgrowth by cAMP and EGF was blocked by inhibitors of transcription suggesting that synergistic regulation of transcription by the cAMP and MAP kinase pathways may stimulate neurite growth.

摘要

丝裂原活化蛋白激酶(MAP激酶)活性对于PC12细胞中生长因子诱导的神经突生长是必需的。尽管神经生长因子(NGF)和表皮生长因子(EGF)都能刺激MAP激酶活性,但EGF并不刺激神经突延伸。我们报告,EGF与氯化钾(KCl)联合使用时,可刺激PC12细胞的神经突生长。这种现象与细胞内钙离子(Ca2+)增加无关,也不是由于MAP激酶活性比单独使用EGF时增强所致。然而,EGF加KCl可增加细胞内环磷酸腺苷(cAMP),其他能提高cAMP水平的试剂与EGF协同作用以促进神经突生长。cAMP和EGF对神经突生长的刺激被转录抑制剂阻断,这表明cAMP和MAP激酶途径对转录的协同调节可能刺激神经突生长。

相似文献

引用本文的文献

9
Calcium signaling in neurodegeneration.神经退行性疾病中的钙信号转导。
Mol Neurodegener. 2009 May 6;4:20. doi: 10.1186/1750-1326-4-20.

本文引用的文献

9
EGF triggers neuronal differentiation of PC12 cells that overexpress the EGF receptor.
Curr Biol. 1994 Aug 1;4(8):694-701. doi: 10.1016/s0960-9822(00)00154-8.

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验