期刊
LIFE SCIENCES
卷 74, 期 18, 页码 2301-2312出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.lfs.2003.09.066
关键词
apoptosis; caspase; endocrine-disrupter; nonylphenol; PC12 cell; serum deprivation; Z-VAD
Although nonylphenol is well known as an endocrine disrupting chemical, there is little information concerning biological effect of nonylphenol. In this study, we investigated effect of nonylphenol on apoptosis induced by serum deprivation in PC 12 cells using TUNEL and DNA fragmentation assays. In addition, changes in contents of proapoptotic factors, Bad and Bax, and antiapoptotic factor, Bcl-2, and enzyme activity of caspase-3 were studied. Below 100 ng/ml of nonylphenol increased TUNEL signals, DNA fragmentation and content of proapoptotic factor, Bad as compared to those by serum deprivation without nonylphenol. Furthermore, addition of nonylphenol enhanced caspase-3 activity and Z-VAD, caspase-3 inhibitor, diminished such effect. These results indicated that below 100 ng/ml of nonylphenol enhanced apoptosis induced by serum deprivation via caspase-3 activation in PC12 cell. (C) 2004 Elsevier Inc. All rights reserved.
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