Oct, 1996
A role of peroxides in Ca2+ ionophore-induced apoptosis in cultured rat cortical neurons
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
- ,
- ,
- ,
- ,
- ,
- Volume
- 227
- Number
- 2
- First page
- 513
- Last page
- 518
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1006/bbrc.1996.1538
- Publisher
- ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS
The implication of reactive oxygen species for the Ca2+ ionophore ionomycin-induced apoptosis was investigated in cultured cortical neurons from embryonic rats. Ionomycin increased the production of intracellular peroxides as measured by flow cytometric analysis with 6-carboxy-2'7'-dichlorodihydrofluorescein diacetate, di(acetoxymethyl ester). Low doses of ionomycin increased the level of manganese-superoxide dismutase (Mn-SOD). In addition, N-acetyl-L-cysteine prevented apoptotic neuronal death induced by ionomycin in a dose-dependent manner. Buthionine sulfoximine suppressed the effect of N-acetyl-L-cysteine. These results suggest that peroxides and redox-regulation play an important role in the apoptosis of neurons induced by elevation of intracellular Ca2+ concentration. (C) 1996 Academic Press, Inc.
- Link information
- ID information
-
- DOI : 10.1006/bbrc.1996.1538
- ISSN : 0006-291X
- Pubmed ID : 8878545
- Web of Science ID : WOS:A1996VP32100033