Essential role of p53 in TPEN-induced neuronal apoptosis
In: FEBS Letters, , Heft 9, S. 1516-1520
Online
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Zugriff:
Depletion of intracellular zinc with N,N,N′,N′-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN) induces protein synthesis-dependent apoptosis. In this study, we examined the requirement for p53 as an upstream transcription factor in TPEN-induced neuronal apoptosis. Chemical or genetic blockade of p53 markedly attenuated TPEN-induced neuronal apoptosis, while the stability and activity of p53 were increased by TPEN. In addition, expression of proapoptotic genes, PUMA and NOXA, and activation of caspase-11 were increased by TPEN in a p53-dependent manner. Inhibition of p53 blocked cytochrome C release from mitochondria to cytosol and prevented caspase-3 activation. Therefore, p53 may be an essential regulatory factor for TPEN-induced neuronal apoptosis.
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Essential role of p53 in TPEN-induced neuronal apoptosis
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Autor/in / Beteiligte Person: | Ra, Hana ; Kim, Yang-Hee ; Han Woong Lee ; Hyun Lim Kim |
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Zeitschrift: | FEBS Letters, , Heft 9, S. 1516-1520 |
Veröffentlichung: | Published by Elsevier B.V. |
Medientyp: | unknown |
ISSN: | 0014-5793 (print) |
DOI: | 10.1016/j.febslet.2009.04.008 |
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