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Proceedings Paper

Artemisinin induces ROS-mediated caspase3 activation in ASTC-a-1 cells
Author(s): Feng-Lian Xiao; Tong-Sheng Chen; Jun-Le Qu; Cheng-Yi Liu
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Paper Abstract

Artemisinin (ART), an antimalarial phytochemical from the sweet wormwood plant or a naturally occurring component of Artemisia annua, has been shown a potential anticancer activity by apoptotic pathways. In our report, cell counting kit (CCK-8) assay showed that treatment of human lung adenocarcinoma (ASTC-a-1) cells with ART effectively increase cell death by inducing apoptosis in a time- and dose-dependent fashion. Hoechst 33258 staining was used to detect apoptosis as well. Reactive oxygen species (ROS) generation was observed in cells exposed to ART at concentrations of 400 μM for 48 h. N-acetyl-L-cysteine (NAC), an oxygen radical scavenger, suppressed the rate of ROS generation and inhibited the ART-induced apoptosis. Moreover, AFC assay (Fluorometric assay for Caspase3 activity) showed that ROS was involved in ART-induced caspase3 acitvation. Taken together, our data indicate that ART induces ROS-mediated caspase3 activation in a time-and dose-dependent way in ASCT-a-1 cells.

Paper Details

Date Published: 11 February 2010
PDF: 7 pages
Proc. SPIE 7565, Biophotonics and Immune Responses V, 75650I (11 February 2010); doi: 10.1117/12.839551
Show Author Affiliations
Feng-Lian Xiao, South China Normal Univ. (China)
Tong-Sheng Chen, South China Normal Univ. (China)
Jun-Le Qu, Shenzhen Univ. (China)
Cheng-Yi Liu, South China Normal Univ. (China)


Published in SPIE Proceedings Vol. 7565:
Biophotonics and Immune Responses V
Wei R. Chen, Editor(s)

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