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Protective effect of melatonin on oxaliplatin-induced apoptosis through sustained Mcl-1 expression and anti-oxidant action in renal carcinoma Caki cells

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Author(s)
Hee Jung UmTaeg Kyu Kwon
Keimyung Author(s)
Kwon, Taeg Kyu
Department
Dept. of Immunology (면역학)
Journal Title
Journal of Pineal Research
Issued Date
2010
Volume
49
Issue
3
Keyword
apoptosisMcl-1melatoninoxaliplatinreactive oxygen species
Abstract
Melatonin is an indolamine initially found to be produced in the pineal gland but now known to be synthesized in a variety of other tissues as well. The mechanisms whereby melatonin regulates the apoptotic program remain only partially understood. Anti-/pro-apoptotic effects of exogenous melatonin on various stimuli-mediated apoptosis were investigated in this report. We investigated the combined effect of melatonin and death receptor–mediated ligands (TNF-α, TRAIL, and anti-Fas antibody) or endoplasmic reticulum (ER) stress-inducing agents (thapsigargin, brefeldin A, and tunicamycin) on apoptosis of cancer cells. Death receptor– or ER stress–induced apoptosis was not significantly influenced by melatonin treatment. However, pretreatment with melatonin significantly inhibited DNA damage–induced apoptosis and glutathione (GSH) depletion, suggesting the reactive oxygen species mediate oxaliplatin/etoposide-induced apoptosis. Interestingly, we also found the involvement of myeloid cell leukemia-1 (Mcl-1) downregulation in oxaliplatin-induced apoptosis; thus, pretreatment with melatonin inhibited Mcl-1 downregulation, and ectopic expression of Mcl-1 attenuated oxaliplatin-induced apoptosis. Taken together, the results demonstrate that melatonin attenuates oxaliplatin-induced apoptosis in cancer cells by inhibition of GSH depletion and Mcl-1 downregulation.
Keimyung Author(s)(Kor)
권택규
Publisher
School of Medicine
Citation
Hee Jung Um and Taeg Kyu Kwon. (2010). Protective effect of melatonin on oxaliplatin-induced apoptosis
through sustained Mcl-1 expression and anti-oxidant action in
renal carcinoma Caki cells. Journal of Pineal Research, 49(3), 283–290. doi: 10.1111/j.1600-079X.2010.00793.x
Type
Article
ISSN
0742-3098
Source
http://lps3.onlinelibrary.wiley.com.proxy.dsmc.or.kr/doi/abs/10.1111/j.1600-079X.2010.00793.x
DOI
10.1111/j.1600-079X.2010.00793.x
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/34239
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Immunology (면역학)
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