Nucleolar stress characterized by downregulation of nucleophosmin: a novel cause of neuronal degeneration.

Nucleolar stress characterized by downregulation of nucleophosmin: a novel cause of neuronal degeneration.
复制标题

DOI:
10.1016/j.bbrc.2011.11.152
复制
发表时间:
2012-01-06
影响因子:
3.1
通讯作者:
Schreiber, Steven S.
Schreiber, Steven S.
中科院分区:
生物学4区
文献类型:
--
作者:
Marquez-Lona, Esther Magdalena;Tan, Zhiqun;Schreiber, Steven S.

文献摘要

参考文献

被引文献

相似文献

核磷蛋白(NPM)是一种多功能的核仁蛋白,与核仁应激有关。在非神经元细胞系中,NPM可以增强或抑制肿瘤抑制因子p53(一种主要的凋亡蛋白)的活性。NPM和p53在中枢神经系统(CNS)中的关系仍然未知。在这里,我们评估了NPM在中枢神经系统中的作用,使用的模型,糖尿病诱导的神经退行性变。我们发现NPM过表达对红藻氨酸诱导的兴奋性毒性具有神经保护作用,并且NPM的下调以p53非依赖性方式促凋亡。这些结果表明,NPM在促进神经元存活和核仁应激引发的神经元变性的新机制的关键作用。
Nucleophosmin (NPM) is a multifunctional nucleolar protein that has been linked with nucleolar stress. In non-neuronal cell lines, NPM may enhance or inhibit the activity of tumor suppressor p53, a major apoptotic protein. The relationship between NPM and p53 in the central nervous system (CNS) remains unknown. Here, we assessed the role of NPM in the CNS using a model of seizure-induced neurodegeneration. We show that NPM overexpression is neuroprotective against kainic acid-induced excitotoxicity, and that downregulation of NPM is pro-apoptotic in a p53-independent manner. These results suggest a key role for NPM in promoting neuronal survival and a novel mechanism of neuronal degeneration triggered by nucleolar stress.
DOI: 10.1016/s0169-328x(01)00117-6
发表时间: 2001-07-13
期刊: MOLECULAR BRAIN RESEARCH
影响因子: --
作者:
Tan, ZQ;Tu, WL;Schreiber, SS
通讯作者: Schreiber, SS
DOI: 10.1038/sj.onc.1210044
发表时间: 2007-04-19
期刊: ONCOGENE
影响因子: 8
作者:
Kerr, L. E.;Birse-Archbold, J-L A.;Sharkey, J.
通讯作者: Sharkey, J.
DOI: 10.1074/jbc.m407856200
发表时间: 2005-02-18
影响因子: 4.8
作者:
Huang, N;Negi, S;Olson, MOJ
通讯作者: Olson, MOJ
DOI: 10.1016/s1535-6108(04)00110-2
发表时间: 2004-05-01
期刊: CANCER CELL
影响因子: 50.3
作者:
Kurki, S;Peltonen, K;Laiho, M
通讯作者: Laiho, M
DOI: 10.1016/s0736-5748(97)00015-4
发表时间: 1997-10-01
影响因子: 1.8
作者:
Schlett, K;Herberth, B;Madarasz, E
通讯作者: Madarasz, E