Oxidative stress is attenuated in mice overexpressing BCL-2

被引:57
作者
Bogdanov, MB
Ferrante, RJ
Mueller, G
Ramos, LE
Martinou, JC
Beal, MF [1 ]
机构
[1] Massachusetts Gen Hosp, Neurol Serv, Neurochem Lab, Boston, MA 02114 USA
[2] Harvard Univ, Sch Med, Boston, MA 02114 USA
[3] Boston Univ, Sch Med, Dept Neurol, Boston, MA 02118 USA
[4] Boston Univ, Sch Med, Dept Pathol, Boston, MA 02118 USA
[5] Boston Univ, Sch Med, Dept Psychiat, Boston, MA 02118 USA
[6] Dept Vet Affairs, Bedford, MA USA
[7] Glaxo Inst Mol Biol SA, CH-1228 Geneva, Switzerland
[8] Cornell Univ, Med Ctr, New York Hosp, Dept Neurol, New York, NY 10021 USA
关键词
oxidative stress; Bcl-2; mitochondria; apoptosis; 3-nitropropionic acid; Huntington's disease;
D O I
10.1016/S0304-3940(99)00047-6
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The protooncogene Bcl-2 inhibits apoptosis in neural cells, which may involve mitochondrial stabilization and decreased generation of reactive oxygen species. Using in vivo microdialysis we found that following administration of the mitochondrial toxin 3-nitropropionic acid (3-NP) there was a significant increase in the conversion of 4-hydroxybenzoic acid (4-HBA) to 3,4-dihydroxybenzoic acid (3,4-DHBA) in control mice, but not in Bcl-2 overexpressing mice. Striatal lesions were observed in littermate control mice, whereas, lesions were minimal or absent in Bcl-2 overexpressing mice. This shows that Bcl-2 overexpression in vivo attenuates the generation of reactive oxygen species. (C) 1999 Published by Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:33 / 36
页数:4
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