Publication Date:
1993-11-19
Description:
The proto-oncogene bcl-2 inhibits apoptotic and necrotic neural cell death. Expression of Bcl-2 in the GT1-7 neural cell line prevented death as a result of glutathione depletion. Intracellular reactive oxygen species and lipid peroxides rose rapidly in control cells depleted of glutathione, whereas cells expressing Bcl-2 displayed a blunted increase and complete survival. Modulation of the increase in reactive oxygen species influenced the degree of cell death. Yeast mutants null for superoxide dismutase were partially rescued by expression of Bcl-2. Thus, Bcl-2 prevents cell death by decreasing the net cellular generation of reactive oxygen species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kane, D J -- Sarafian, T A -- Anton, R -- Hahn, H -- Gralla, E B -- Valentine, J S -- Ord, T -- Bredesen, D E -- GM 28222/GM/NIGMS NIH HHS/ -- NS27812/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1993 Nov 19;262(5137):1274-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California, Los Angeles 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8235659" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Antioxidants/pharmacology
;
Buthionine Sulfoximine
;
*Cell Death
;
Cell Line
;
Glutathione/metabolism
;
Hydroxyl Radical/metabolism
;
Iron/metabolism
;
Lipid Peroxidation
;
Methionine Sulfoximine/analogs & derivatives/pharmacology
;
Neurons/*cytology/metabolism
;
Proto-Oncogene Proteins/*physiology
;
Proto-Oncogene Proteins c-bcl-2
;
Reactive Oxygen Species/*metabolism
;
Saccharomyces cerevisiae/growth & development/metabolism
;
Superoxide Dismutase/metabolism
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
