Ethanol-Induced Caspase-3 Activation in the in Vivo Developing Mouse Brain

Autor: John W. Olney, Tatyana Tenkova, Krikor Dikranian, Louis J. Muglia, Walter J. Jermakowicz, Cleta D'Sa, Kevin A. Roth
Jazyk: angličtina
Rok vydání: 2002
Předmět:
Zdroj: Neurobiology of Disease, Vol 9, Iss 2, Pp 205-219 (2002)
Druh dokumentu: article
ISSN: 1095-953X
DOI: 10.1006/nbdi.2001.0475
Popis: Recently several methods have been described for triggering extensive apoptotic neurodegeneration in the developing in vivo mammalian brain. These methods include treatment with drugs that block NMDA glutamate receptors, drugs that promote GABAA neurotransmission, or treatment with ethanol, which has both NMDA antagonist and GABAmimetic properties. A single intoxication episode induced by any of these agents is sufficient to cause widespread neurodegeneration throughout many brain regions. The cell death process transpires rapidly from early to late stages within several hours. As the neurons die, they become TUNEL positive and show, by both light and electron microscopy, all of the classical morphological characteristics of apoptosis. In the present study, using immunocytochemical methods, we document that ethanol intoxication of 7-day-old infant mice causes a widespread pattern of caspase-3 activation corresponding to the pattern of apoptotic neurodegeneration that is occurring simultaneously.
Databáze: Directory of Open Access Journals