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.
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DOI:
10.1016/j.bbrc.2011.11.152
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发表时间:
2012-01-06
影响因子:
3.1
通讯作者:
Schreiber, Steven S.
中科院分区:
文献类型:
--
作者:
Marquez-Lona, Esther Magdalena;Tan, Zhiqun;Schreiber, Steven S.
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.
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DOI:
10.1016/s0169-328x(01)00117-6
发表时间:
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期刊:
MOLECULAR BRAIN RESEARCH
影响因子:
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通讯作者:
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DOI:
10.1016/s0736-5748(97)00015-4
发表时间:
1997-10-01
影响因子:
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通讯作者:
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