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An approach to elucidate potential mechanism of renal toxicity of arsenic trioxide.
MedLine Citation:
PMID:  17258074     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To investigate arsenic trioxide's renal toxicity, we analyzed the gene-expression patterns of primary renal and human kidney cells (HEK293 cell line) following exposure to arsenic trioxide. Moreover, we examined a potential renal toxic mechanism(s) of arsenic trioxide by using a toxicity-related gene and investigated potential treatments to reduce the renal toxicity of arsenic trioxide. MATERIALS AND METHODS: Arsenic trioxide was exposed to primary renal and HEK293 cells, and the gene-expression analysis was conducted using DNA microarray. Then, reactive oxygen species inhibitors or alpha-lipoic acid were added to HEK293 cells exposed arsenic trioxide and cell viability was determined. RESULTS: Expression of HMOX1 mRNA increased in a time- and dose-dependent manner, and translation of heme oxygenase 1 protein was also induced. Arsenic trioxide-induced cytotoxicity was inhibited by reactive oxygen species inhibitors. Moreover, superoxide anion was detected in arsenic trioxide-treated HEK293 cells. alpha-Lipoic acid ameliorated arsenic trioxide-induced cytotoxicity and reduced superoxide anion production in HEK293 cells, whereas it had no effect in promyelocytic leukemia cells (HL-60 cells and NB4 cells) and myeloma cells (KMS12BM cells and U266 cells). CONCLUSIONS: Arsenic trioxide-induced renal toxicity is strongly associated with the increased expression of HMOX1, and the cytotoxic mechanisms of arsenic trioxide involves reactive oxygen species production as well as another pathway. These preliminary results suggest that alpha-lipoic acid may be a suitable agent for prevention or treatment of arsenic trioxide-induced renal toxicity.
Akira Sasaki; Yasuo Oshima; Akio Fujimura
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Experimental hematology     Volume:  35     ISSN:  0301-472X     ISO Abbreviation:  Exp. Hematol.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-01-29     Completed Date:  2007-11-30     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0402313     Medline TA:  Exp Hematol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  252-62     Citation Subset:  IM    
Division of Clinical Pharmacology, Jichi Medical University, Tochigi, Japan.
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MeSH Terms
1,2-Dihydroxybenzene-3,5-Disulfonic Acid Disodium Salt / pharmacology
Arsenicals / antagonists & inhibitors
Catalase / pharmacology
Catecholamines / pharmacology
Cell Death / drug effects
Cell Survival / drug effects
Cells, Cultured
Cluster Analysis
Dose-Response Relationship, Drug
Gene Expression Profiling
Gene Expression Regulation / drug effects*,  genetics
HL-60 Cells
Heme Oxygenase-1 / drug effects*,  genetics,  metabolism
Imidazolines / pharmacology
Kidney Cortex / cytology,  drug effects*
Oligonucleotide Array Sequence Analysis / methods
Oxides / antagonists & inhibitors,  toxicity*
RNA, Messenger / drug effects,  genetics,  metabolism
Reactive Oxygen Species / antagonists & inhibitors,  metabolism
Reverse Transcriptase Polymerase Chain Reaction / methods
Superoxides / antagonists & inhibitors,  metabolism
Thioctic Acid / pharmacology
Time Factors
Reg. No./Substance:
0/Arsenicals; 0/Catecholamines; 0/Imidazolines; 0/Oxides; 0/RNA, Messenger; 0/Reactive Oxygen Species; 11062-77-4/Superoxides; 1327-53-3/arsenic trioxide; 149-45-1/1,2-Dihydroxybenzene-3,5-Disulfonic Acid Disodium Salt; 57101-49-2/(3,4-dihydroxyphenylamino)-2-imidazoline; 62-46-4/Thioctic Acid; EC; EC protein, human; EC Oxygenase-1

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