Abstract
To investigate the effects of juglone on ROS production and mitochondrial transmembrane potential (ΔΨm) in SGC-7901 cells in vitro, further to elucidate the apoptosis mechanism. The apoptosis morphological changes of SGC-7901 cells were observed using fluorescence microscope. The level of ROS and ΔΨm of cells were detected by FCM. The change of [Ca2 + ]i in cells stained with Fluo-3/AM was observed by LCSM. Hoechst 33258 staining assay showed thick granulated fluorescence in condensed nuclei and cytoplasm, and the number of apoptotic bodies was increased with increasing of juglone concentration. The level of ROS at the dose of 5, 10, 15 and 20μM of juglone was 34.83±1.45%, 42.43±1.36%, 53.73±1.38% and 68.67±1.33%, respectively, which were significantly higher than that in control group (P <0.01). The concentration of Ca2 + in cells exposed to juglone for 24 h was increased significantly in a dose dependent manner compared with control group (P <0.01). ΔΨm of treatment groups was 85.53±1.82%, 53.57±2.48%, 46.33±1.46%, 36.43±2.64%, respectively, which were significantly lower than that in control group (P <0.01).Therefore, juglone can increase intracellular level of ROS and concentration of Ca2 + , decrease ΔΨm and induce the cells apoptosis.
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Ji, Y., Qu, Z., Zou, X., Ji, C. (2012). Effects of Juglone on ROS Production and Mitochondrial Transmembrane Potential in SGC-7901 Cells. In: Zhu, E., Sambath, S. (eds) Information Technology and Agricultural Engineering. Advances in Intelligent and Soft Computing, vol 134. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27537-1_2
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DOI: https://doi.org/10.1007/978-3-642-27537-1_2
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