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Wang H, Ao M, Liu W, Bai Y, Zhu Y, Yu L. Topoisomerases inhibitory activities and DNA binding properties of 9-methoxycamptothecin from Nothapodytes nimmoniana (J. Graham) Mabberly. Nat Prod Res 2017; 33:727-731. [DOI: 10.1080/14786419.2017.1402312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Haiyan Wang
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, China
- Wuhan Institute of Biotechnology, Wuhan, China
- Department of Chemical Engineering and Food Science, Hubei University of Arts and Science, Xiang yang, China
| | - Mingzhang Ao
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, China
- Wuhan Institute of Biotechnology, Wuhan, China
| | - Weitu Liu
- Innovation & Development Center, Fresenius Kabi, Wuhan, China
| | - Yun Bai
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, China
- Wuhan Institute of Biotechnology, Wuhan, China
| | - Yuanmin Zhu
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, China
- Wuhan Institute of Biotechnology, Wuhan, China
| | - Longjiang Yu
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics, Ministry of Education, Wuhan, China
- Wuhan Institute of Biotechnology, Wuhan, China
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Wang H, Ao M, Wu J, Yu L. TNFα and Fas/FasL pathways are involved in 9-Methoxycamptothecin-induced apoptosis in cancer cells with oxidative stress and G2/M cell cycle arrest. Food Chem Toxicol 2013; 55:396-410. [PMID: 23369935 DOI: 10.1016/j.fct.2012.12.059] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/11/2012] [Accepted: 12/12/2012] [Indexed: 11/25/2022]
Abstract
9-Methoxycamptothecin (MCPT) has been recently reported to have a strong anticancer activity. However, its detailed mechanism of action in human cancer cells has not been well clarified. The results showed that MCPT induced cytotoxicity in seven human cancer cell lines in a dose dependent manner after 72h, with A2780 and Hela cell lines more sensitive, so the two cell lines were chosen to do further studies. MCPT induced strong G2/M arrest in both A2780 cells and Hela cells after 24h, following by substantial sub-G1 arrest (indicating apoptosis). The apoptosis was verified by staining with Annexin V-FITC and propidium iodide. ROS generation increased significantly in MCPT-induced apoptosis. Meanwhile, the apoptosis appeared to be dependent on caspase-3, -8 and -9 in A2780 cells, and caspase-3 in Hela cells. In addition, MCPT induced up-regulation expression of most of seventeen genes in both cell lines. Western blot verified that changes of TNFα, Fas, P53 and P27 protein level were consistent with their gene expression changes. Taken together, MCPT plays an important role in tumor growth suppression by inducing apoptosis in both cell lines via extrinsic and intrinsic apoptotic pathways, and has the potential to be developed into an antitumor agent.
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Affiliation(s)
- Haiyan Wang
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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