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Hseu YC, Huang YC, Thiyagarajan V, Mathew DC, Lin KY, Chen SC, Liu JY, Hsu LS, Li ML, Yang HL. Anticancer activities of chalcone flavokawain B from Alpinia pricei Hayata in human lung adenocarcinoma (A549) cells via induction of reactive oxygen species-mediated apoptotic and autophagic cell death. J Cell Physiol 2019; 234:17514-17526. [PMID: 30847898 DOI: 10.1002/jcp.28375] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/21/2019] [Accepted: 01/24/2019] [Indexed: 12/20/2022]
Abstract
Chalcones found in fruits and vegetables have promising cancer chemopreventive properties. This study attempts to identify the anticancer efficacies of chalcone flavokawain B (FKB) in the rhizomes of Alpinia pricei Hayata by examining key molecular events in non-small-cell lung cancer (A549) cells. Our results indicated that in human A549 cells, FKB (0-15 μg/ml) decreases cell viability and colony formation, dysregulates the Bax:B-cell lymphoma 2 ratio and increases apoptotic DNA fragmentation. Mitochondrial (caspase-9/-3 and poly ADP ribose polymerase [PARP]) signaling was found to be involved in FKB-induced apoptosis. In addition, FKB-induced reactive oxygen species (ROS) generation, and N-acetylcysteine attenuated FKB-induced apoptotic cell death. Moreover, FKB triggered autophagy, as evidenced by the improved acidic vesicular organelle formation, lipidated light chain 3 (microtubule-related light chain 3) accumulation, and ATG7 expression and the decreased mammalian target of rapamycin phosphorylation. Furthermore, FKB suppressed ROS-mediated ATG4B expression. Inhibiting autophagy using 3-methyladenine/chloroquine diminished FKB-induced cell death, indicating that autophagy is triggered as a death mechanism by FKB. In summary, FKB has a crucial role in the execution and propagation of ROS-mediated apoptotic and autophagic cell death of lung adenocarcinoma cells.
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Affiliation(s)
- You-Cheng Hseu
- Department of Cosmeceutics, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan.,Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan.,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan.,Research Center of Chinese Herbal Medicine, China Medical University, Taichung, Taiwan
| | - Yu-Chi Huang
- Department of Nutrition, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
| | - Varadharajan Thiyagarajan
- Department of Cosmeceutics, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
| | - Dony Chacko Mathew
- Department of Cosmeceutics, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
| | - Kai-Yuan Lin
- Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan
| | - Ssu-Ching Chen
- Department of Life Sciences, National Central University, Chung-Li, Taiwan
| | - Jer-Yuh Liu
- Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan
| | - Li-Sung Hsu
- Department of Biomedical Sciences, Institute of Biochemistry and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
| | - Mei-Ling Li
- Department of Nutrition, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
| | - Hsin-Ling Yang
- Department of Nutrition, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
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