J Korean Med Sci.
2002 Oct;17(5):674-678. 10.3346/jkms.2002.17.5.674.
Caffeine Induces Apoptosis in Human Neuroblastoma Cell Line SK-N-MC
- Affiliations
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- 1Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea. changju@khu.ac.kr
- 2Department of Biochemistry, College of Medicine, Kyung Hee University, Seoul, Korea.
- 3Department of Parasitology, College of Medicine, Kyung Hee University, Seoul, Korea.
- 4Department of Meridianology, College of Oriental Medicine, Semyung University, Jechon, Korea.
- KMID: 1127262
- DOI: http://doi.org/10.3346/jkms.2002.17.5.674
Abstract
- Caffeine is one of the most widely consumed neuroactive drugs, coming mostly from everyday beverages such as coffee and tea. To investigate whether caffeine induces apoptosis in the central nervous system, 3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium bromide (MTT) assay, 4,6-diamidino-2-phenylindole (DAPI) staining, terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay, flow cytometric analysis, DNA fragmentation assay, and caspase-3 enzyme assay were performed on SK-N-MC human neuroblastoma cells. Cells treated with caffeine at concentrations as high as 10 mM exhibited several characteristics of apoptosis. In addition, caffeine was shown to increase the caspase-3 activity. These results suggest that high-dose of caffeine induces apoptosis in human neuroblastoma cells, probably by increasing the caspase-3 enzyme activity.
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