Document Detail

Pyrrolidinium-type fullerene derivative-induced apoptosis by the generation of reactive oxygen species in HL-60 cells.
MedLine Citation:
PMID:  19886743     Owner:  NLM     Status:  Publisher    
The biological activities of C(60)-bis(N,N-dimethylpyrrolidinium iodide), a water-soluble cationic fullerene derivative, on human promyeloleukaemia (HL-60) cells were investigated. The pyrrolidinium fullerene derivative showed cytotoxicity in HL-60 cells. The characteristics of apoptosis, such as DNa fragmentation and condensation of chromatin in HL-60 cells, were observed by exposure to the pyrrolidinium fullerene derivative. Caspase-3 and -8 were activated and cytochrome c was also released from mitochondria. The generation of reactive oxygen species (ROS) by the pyrrolidinium fullerene derivative was observed by DCFG-DA, a fluorescence probe for the detection of ROS. Pre-treatment with alpha-tocopherol suppressed cell death and intracellular oxidative stress caused by the pyrrolidinium fullerene derivative. The apoptotic cell death induced by the pyrrolidinium fullerene derivative was suggested to be mediated by ROS generated by the pyrrolidinium fullerene derivative.
Chiho Nishizawa; Noriyuki Hashimoto; Sachiko Yokoo; Megumi Funakoshi-Tago; Tadashi Kasahara; Kyoko Takahashi; Shigeo Nakamura; Tadahiko Mashino
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2009-11-3
Journal Detail:
Title:  Free radical research     Volume:  -     ISSN:  1029-2470     ISO Abbreviation:  Free Radic. Res.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9423872     Medline TA:  Free Radic Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Pharmaceutical Sciences, Faculty of Pharmacy, Keio University, Tokyo, Japan.
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