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Liao LS, Chen Y, Hou C, Liu YH, Su GF, Liang H, Chen ZF. Potent Zinc(II)-Based Immunogenic Cell Death Inducer Triggered by ROS-Mediated ERS and Mitochondrial Ca 2+ Overload. J Med Chem 2023; 66:10497-10509. [PMID: 37498080 DOI: 10.1021/acs.jmedchem.3c00603] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Zn1 and Zn2 are Zn-based complexes that activate the immunogenic cell death (ICD) effect by Ca2+-mediated endoplasmic reticulum stress (ERS) and mitochondrial dysfunction. Compared with Zn1, Zn2 effectively caused reactive oxidative species (ROS) overproduction in the early phase, leading to ERS response. Severe ERS caused the release of Ca2+ from ER to cytoplasm and further to mitochondria. Excessive Ca2+ in mitochondria triggered mitochondrial dysfunction. The damage-associated molecular patterns (DAMPs) of CRT, HMGB1, and ATP occurred in T-24 cells exposed to Zn1 and Zn2. The vaccination assay demonstrated that Zn1 and Zn2 efficiently suppressed the growth of distant tumors. The elevated CD8+ cytotoxic T cells and decreased Foxp3+ cells in vaccinated mice supported our conclusion. Moreover, Zn1 and Zn2 improved the survival rate of mice compared with oxaliplatin. Collectively, our findings provided a new design strategy for a zinc-based ICD inducer via ROS-induced ERS and mitochondrial Ca2+ overload.
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Affiliation(s)
- Lan-Shan Liao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
- School of Medicine, Guangxi University of Science and Technology, Liuzhou 545005, China
| | - Yin Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Cheng Hou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Yang-Han Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Gui-Fa Su
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zhen-Feng Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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2
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Qin LQ, Liang CJ, Zhou Z, Qin QP, Wei ZZ, Tan MX, Liang H. Mitochondria-localizing curcumin-cryptolepine Zn(II) complexes and their antitumor activity. Bioorg Med Chem 2021; 30:115948. [PMID: 33360578 DOI: 10.1016/j.bmc.2020.115948] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/03/2020] [Accepted: 12/06/2020] [Indexed: 01/08/2023]
Abstract
Many metal complexes are potent candidates as mitochondrial-targeting agents. In this study, four novel Zn(II) complexes, [Zn(BPQA)Cl2] (Zn1), [Zn(BPQA)(Curc)]Cl (Zn2), [Zn(PQA)Cl2] (Zn3), and [Zn(PQA)(Curc)]Cl (Zn4), containing N,N-bis(pyridin-2-ylmethyl)benzofuro[3,2-b]quinolin-11-amine (BPQA), N-(pyridin-2-ylmethyl)benzofuro[3,2-b]quinolin-11-amine (PQA), and curcumin (H-Curc) were synthesized. An MTT assay showed that Zn1-Zn4 had strong anticancer activities against SK-OV-3/DDP and T-24 tumor cells with IC50 values of 0.03-6.19 μM. Importantly, Zn1 and Zn2 displayed low toxicities against normal HL-7702 cells. Mechanism experiments demonstrated that probe Zn2 showed appreciable fluorescence in the red region of the spectrum, and substantial accumulation of Zn2 occurred in the mitochondria after treatment, indicating increases in Ca2+ and reactive oxygen species levels, loss of the mitochondrial membrane potential, and consequent induction of mitochondrial dysfunction at low concentrations. In addition, the probe Zn2 effectively (50.7%) inhibited the growth of T-24 bladder tumor cells in vivo. The probe Zn2 shows potential for use in cancer therapy while retaining the H-Curc as an imaging probe.
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Affiliation(s)
- Li-Qin Qin
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, PR China
| | - Chun-Jie Liang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, PR China
| | - Zhen Zhou
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, PR China
| | - Qi-Pin Qin
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, PR China; State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China.
| | - Zu-Zhuang Wei
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China.
| | - Ming-Xiong Tan
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, PR China
| | - Hong Liang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China.
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3
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Han X, Yu YL, Ma D, Zhang ZY, Liu XH. Synthesis, telomerase inhibitory and anticancer activity of new 2-phenyl-4H-chromone derivatives containing 1,3,4-oxadiazole moiety. J Enzyme Inhib Med Chem 2020; 36:344-360. [PMID: 33356666 PMCID: PMC7782168 DOI: 10.1080/14756366.2020.1864630] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Based on previous studies, 66 2-phenyl-4H-chromone derivatives containing amide and 1,3,4-oxadiazole moieties were prepared as potential telomerase inhibitors. The results showed most of the title compounds exhibited significantly inhibitory activity on telomerase. Among them, some compounds demonstrated the most potent telomerase inhibitory activity (IC50 < 1 µM), which was significantly superior to the staurosporine (IC50 = 6.41 µM). In addition, clear structure–activity relationships were summarised, indicating that the substitution of the methoxy group and the position, type and number of the substituents on the phenyl ring had significant effects on telomerase activity. Among them, compound A33 showed considerable inhibition against telomerase. Flow cytometric analysis showed that compound A33 could arrest MGC-803 cell cycle at G2/M phase and induce apoptosis in a concentration-dependent way. Meanwhile, Western blotting revealed that this compound could reduce the expression of dyskerin, which is a fragment of telomerase.
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Affiliation(s)
- Xu Han
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, P. R. China
| | - Yun Long Yu
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, P. R. China
| | - Duo Ma
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, P. R. China
| | - Zhao Yan Zhang
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, P. R. China
| | - Xin Hua Liu
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, P. R. China
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4
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Design, synthesis and SARs of novel telomerase inhibitors based on BIBR1532. Bioorg Chem 2020; 102:104077. [DOI: 10.1016/j.bioorg.2020.104077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/29/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022]
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5
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Raising the bar in anticancer therapy: recent advances in, and perspectives on, telomerase inhibitors. Drug Discov Today 2019; 24:1370-1388. [PMID: 31136800 DOI: 10.1016/j.drudis.2019.05.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/02/2019] [Accepted: 05/21/2019] [Indexed: 02/06/2023]
Abstract
Telomerase is a ribonucleic reverse transcriptase enzyme that uses an integral RNA component as a template to add tandem telomeric DNA repeats, TTAGGG, at the 3' end of the chromosomes. 85-90% of human tumors and their derived cell lines predominantly express high levels of telomerase, therefore contributing to cancer cell development. However, in normal cells, telomerase activity is almost always absent except in germ cells and stem cells. This differential expression has been exploited to develop highly specific and potent cancer therapeutics. In this review, we outline recent advances in the development of telomerase inhibitors as anticancer agents.
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Novel 2-(2,5-methoxy-phenyl) imidazo [4,5-f]-[1, 10] phenanthrolin platinum(II) complex display high anticancer activity via dysfunction of mitochondrial signaling pathway. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.01.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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7
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Zhang HR, Liu YC, Chen ZF, Guo J, Peng YX, Liang H. Crystal Structures, Cytotoxicity, Cell Apoptosis Mechanism, and DNA Binding of Two 8-Hydroxylquinoline Zinc(II) Complexes. RUSS J COORD CHEM+ 2018. [DOI: 10.1134/s107032841805007x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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8
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Wei ZZ, Qin QP, Meng T, Deng CX, Liang H, Chen ZF. 5-Bromo-oxoisoaporphine platinum(II) complexes exhibit tumor cell cytotoxcicity via inhibition of telomerase activity and disruption of c-myc G-quadruplex DNA and mitochondrial functions. Eur J Med Chem 2018; 145:360-369. [DOI: 10.1016/j.ejmech.2017.12.092] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 11/20/2017] [Accepted: 12/29/2017] [Indexed: 01/01/2023]
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9
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Qin QP, Wang SL, Tan MX, Wang ZF, Huang XL, Wei QM, Shi BB, Zou BQ, Liang H. Synthesis and antitumor mechanisms of two novel platinum(ii) complexes with 3-(2′-benzimidazolyl)-7-methoxycoumarin. Metallomics 2018; 10:1160-1169. [DOI: 10.1039/c8mt00125a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pt2 is a novel telomerase inhibitor binding to c-myc promoter elements, which arrests the cell cycle at the G2/M phase and induces apoptosis and causes mitochondrial dysfunction.
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Affiliation(s)
- Qi-Pin Qin
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Shu-Long Wang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Ming-Xiong Tan
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Zhen-Feng Wang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Xiao-Ling Huang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Qing-Min Wei
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Bei-Bei Shi
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Bi-Qun Zou
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Hong Liang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin 541004
- P. R. China
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10
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Qin QP, Zou BQ, Tan MX, Wang SL, Liu YC, Liang H. Tryptanthrin derivative copper(ii) complexes with high antitumor activity by inhibiting telomerase activity, and inducing mitochondria-mediated apoptosis and S-phase arrest in BEL-7402. NEW J CHEM 2018. [DOI: 10.1039/c8nj03005g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Try-Cu exhibited its antitumor activity mainly via inhibiting telomerase by interaction with the c-myc promoter and disrupting mitochondrial functions.
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Affiliation(s)
- Qi-Pin Qin
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, School of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road
- Yulin 537000
- P. R. China
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road
- Guilin 541004
| | - Bi-Qun Zou
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road
- Guilin 541004
- P. R. China
- Department of Chemistry, Guilin Normal College, 21 Xinyi Road
- Gulin 541001
| | - Ming-Xiong Tan
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, School of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road
- Yulin 537000
- P. R. China
| | - Shu-Long Wang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, School of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road
- Yulin 537000
- P. R. China
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road
- Guilin 541004
| | - Yan-Cheng Liu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road
- Guilin 541004
- P. R. China
| | - Hong Liang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road
- Guilin 541004
- P. R. China
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11
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Qin QP, Meng T, Tan MX, Liu YC, Luo XJ, Zou BQ, Liang H. Synthesis, crystal structure and biological evaluation of a new dasatinib copper(II) complex as telomerase inhibitor. Eur J Med Chem 2018; 143:1597-1603. [DOI: 10.1016/j.ejmech.2017.10.058] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/23/2017] [Accepted: 10/19/2017] [Indexed: 12/20/2022]
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12
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Bai L, Gao C, Liu Q, Yu C, Zhang Z, Cai L, Yang B, Qian Y, Yang J, Liao X. Research progress in modern structure of platinum complexes. Eur J Med Chem 2017; 140:349-382. [PMID: 28985575 DOI: 10.1016/j.ejmech.2017.09.034] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/18/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
Abstract
Since the antitumor activity of cisplatin was discovered in 1967 by Rosenberg, platinum-based anticancer drugs have played an important role in chemotherapy in clinic. Nevertheless, platinum anticancer drugs also have caused severe side effects and cross drug resistance which limited their applications. Therefore, a significant amount of efforts have been devoted to developing new platinum-based anticancer agents with equal or higher antitumor activity but lower toxicity. Until now, a large number of platinum-based complexes have been prepared and extensively investigated in vitro and in vivo. Among them, some platinum-based complexes revealing excellent anticancer activity showed the potential to be developed as novel type of anticancer agents. In this account, we present such platinum-based anticancer complexes which owning various types of ligands, such as, amine carrier ligands, leaving groups, reactive molecule, steric hindrance groups, non-covalently binding platinum (II) complexes, Platinum(IV) complexes and polynuclear platinum complexes. Overall, platinum-based anticancer complexes reported recently years upon modern structure are emphasized.
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Affiliation(s)
- Linkui Bai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Chuanzhu Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
| | - Qinghua Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Congtao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhuxin Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Linxiang Cai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Yunxu Qian
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Jian Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xiali Liao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
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13
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Qin QP, Qin JL, Chen M, Li YL, Meng T, Zhou J, Liang H, Chen ZF. Chiral platinum (II)-4-(2,3-dihydroxypropyl)- formamide oxo-aporphine (FOA) complexes promote tumor cells apoptosis by directly targeting G-quadruplex DNA in vitro and in vivo. Oncotarget 2017; 8:61982-61997. [PMID: 28977920 PMCID: PMC5617480 DOI: 10.18632/oncotarget.18778] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/06/2017] [Indexed: 11/25/2022] Open
Abstract
Three platinum(II) complexes, 4 (LC-004), 5 (LC-005), and 6 (LC-006), with the chiral FOA ligands R/S-(±)-FOA (1), R-(+)-FOA (2) and S-(–)-FOA (3), respectively, were synthesized and characterized. As potential anti-tumor agents, these complexes show higher cytotoxicity to BEL-7404 cells than the HL-7702 normal cells. They are potential telomerase inhibitors that target c-myc and human telomeric G-quadruplex DNA. Compared to complexes 4 and 5, 6 exhibited higher binding affinities towards telomeric, c-myc G-quadruplex DNA and caspase-3/9, thereby inducing senescence and apoptosis to a greater extent in tumor cells. Moreover, our in vivo studies showed that complex 6 can effectively inhibit tumor growth in the BEL-7404 and BEL-7402 xenograft mouse models and is less toxic than 5-fluorouracil and cisplatin. The effective inhibition of tumor growth is attributed to its interactions with 53BP1, TRF1, c-myc, TRF2, and hTERT. Thus, complex 6 can serve as a novel lead compound and a potential drug candidate for anticancer chemotherapy.
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Affiliation(s)
- Qi-Pin Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Jiao-Lan Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Ming Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Yu-Lan Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Ting Meng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Jie Zhou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Zhen-Feng Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
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14
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Cabrera AR, Espinosa-Bustos C, Faúndez M, Meléndez J, Jaque P, Daniliuc CG, Aguirre A, Rojas RS, Salas CO. New imidoyl-indazole platinum (II) complexes as potential anticancer agents: Synthesis, evaluation of cytotoxicity, cell death and experimental-theoretical DNA interaction studies. J Inorg Biochem 2017. [PMID: 28648925 DOI: 10.1016/j.jinorgbio.2017.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Four new neutral N,N imidoyl-indazole ligands (L1, L3, L6, L7) and six new Pt(II)-based complexes (C1-5 and C7) were synthesized and characterized by spectroscopic and spectrometric techniques. Additionally, compounds L6, L7, C3, C5 and C7 were analyzed using X-ray diffraction. An evaluation of cytotoxicity and cell death in vitro for both ligands and complexes was performed by colorimetric assay and flow cytometry, in four cancer cell lines and VERO cells as the control, respectively. Cytotoxicity and selectivity demonstrated by each compound were dependent on the cancer cell line assayed. IC50 values of complexes C1-5 and C7 were lower than those exhibited for the reference drug cisplatin, and selectivity of these complexes was in general terms greater than cisplatin on three cancer cell lines studied. In HL60 cells, complexes C1 and C5 exhibited the lowest values of IC50 and were almost five times more selective than cisplatin. Flow cytometry results suggest that each complex predominantly induced necrosis, and its variant necroptosis, instead of apoptosis in all cancer cell lines studied. DNA binding assays, using agarose gel electrophoresis and UV-visible spectrophotometry studies, displayed a strong interaction only between C4 and DNA. In fact, theoretical calculations showed that C4-DNA binding complex was the most thermodynamic favorable interaction among the complexes in study. Overall, induction of cell death by dependent and independent-DNA-metal compound interactions were possible using imidoyl-indazole Pt(II) complexes as anticancer agents.
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Affiliation(s)
- Alan R Cabrera
- Departamento de Química Orgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile; Universidad Bernardo O'Higgins, Departamento de Ciencias Químicas y Biológicas, Laboratorio de Bionanotecnología, General Gana 1702, Santiago, Chile.
| | - Christian Espinosa-Bustos
- Departamento de Química Orgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile
| | - Mario Faúndez
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile
| | - Jaime Meléndez
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile
| | - Pablo Jaque
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. República 275, Santiago, Chile; Nucleus Millennium of Chemical Processes and Catalysis, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile
| | - Constantin G Daniliuc
- Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Adam Aguirre
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile
| | - Rene S Rojas
- Nucleus Millennium of Chemical Processes and Catalysis, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile
| | - Cristian O Salas
- Departamento de Química Orgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile; Nucleus Millennium of Chemical Processes and Catalysis, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 702843 Santiago, Chile.
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15
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Zhang YL, Qin QP, Cao QQ, Han HH, Liu ZL, Liu YC, Liang H, Chen ZF. Synthesis, crystal structure, cytotoxicity and action mechanism of a Rh(iii) complex with 8-hydroxy-2-methylquinoline as a ligand. MEDCHEMCOMM 2017; 8:184-190. [PMID: 30108704 PMCID: PMC6072358 DOI: 10.1039/c6md00462h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 10/15/2016] [Indexed: 11/21/2022]
Abstract
A rhodium(iii) complex, [Rh(MQ)(DMSO)2Cl2] (1), with 8-hydroxy-2-methylquinoline as the ligand was synthesized and characterized. Complex 1 exhibited cytotoxicity against BEL-7404, Hep-G2, NCI-H460, T-24, and A549 cell lines with IC50 values in the micromolar range (6.52-17.86 μM). Various experiments on the Hep-G2 cells showed that complex 1 caused cell cycle arrest at the S phase, downregulation of cdc25 A, cyclin A, cyclin B and CDK2, and upregulation of p21, p27 and p53. Furthermore, cytotoxicity mechanism studies suggested that complex 1-induced apoptosis was achieved via disruption of the mitochondrial function, which led to a significant loss of the mitochondrial membrane potential, an increase in the cellular levels of reactive oxygen species, cytochrome c, and apaf-1, and a fluctuation of the intracellular Ca2+ concentration. Taken altogether, complex 1 can trigger cancer cell death by inducing apoptosis through a mitochondrial dysfunction pathway.
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Affiliation(s)
- Yun-Liang Zhang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
- Department of Pharmacy , Shaoyang University , Shaoyang , Hunan 422000 , People's Republic of China
| | - Qi-Pin Qin
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
| | - Qian-Qian Cao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
| | - Hong-Hua Han
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
| | - Zhu-Ling Liu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
| | - Yan-Cheng Liu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
| | - Hong Liang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
| | - Zhen-Feng Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , Guilin , Guangxi 541004 , PR China . ; ; Tel: +86 773 2120958
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16
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Rahman FU, Ali A, Khan IU, Duong HQ, Guo R, Wang H, Li ZT, Zhang DW. Novel phenylenediamine bridged mixed ligands dimetallic square planner Pt(II) complex inhibits MMPs expression via p53 and caspase-dependent signaling and suppress cancer metastasis and invasion. Eur J Med Chem 2017; 125:1064-1075. [DOI: 10.1016/j.ejmech.2016.10.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/12/2016] [Accepted: 10/14/2016] [Indexed: 01/31/2023]
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17
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Qin QP, Qin JL, Meng T, Yang GA, Wei ZZ, Liu YC, Liang H, Chen ZF. Preparation of 6/8/11-Amino/Chloro-Oxoisoaporphine and Group-10 Metal Complexes and Evaluation of Their in Vitro and in Vivo Antitumor Activity. Sci Rep 2016; 6:37644. [PMID: 27898051 PMCID: PMC5127189 DOI: 10.1038/srep37644] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 09/19/2016] [Indexed: 12/26/2022] Open
Abstract
A series of group-10 metal complexes 1–14 of oxoisoaporphine derivatives were designed and synthesized. 1–14 were more selectively cytotoxic to Hep-G2 cells comparing with normal liver cells. In vitro cytotoxicity results showed that complexes 1–6, 7, 8, 10 and 11, especially 3, were telomerase inhibitors targeting c-myc, telomeric, and bcl-2 G4s and triggered cell senescence and apoptosis; they also caused telomere/DNA damage and S phase arrest. In addition, 1–6 also caused mitochondrial dysfunction. Notably, 3 with 6-amino substituted ligand La exhibited less side effects than 6 with 8-amino substituted ligand Lb and cisplatin, but similar tumor growth inhibition efficacy in BEL-7402 xenograft model. Complex 3 has the potential to be developed as an effective anticancer agent.
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Affiliation(s)
- Qi-Pin Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
| | - Jiao-Lan Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
| | - Ting Meng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
| | - Gui-Ai Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
| | - Zu-Zhuang Wei
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
| | - Yan-Cheng Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
| | - Zhen-Feng Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, P.R. China
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18
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Sun YG, Sun YN, You LX, Liu YN, Ding F, Ren BY, Xiong G, Dragutan V, Dragutan I. Novel mononuclear Pt2+ and Pd2+ complexes containing (2,3-f)pyrazino(1,10)phenanthroline-2,3-dicarboxylic acid as a multi-donor ligand. Synthesis, structure, interaction with DNA, in vitro cytotoxicity, and apoptosis. J Inorg Biochem 2016; 164:129-140. [DOI: 10.1016/j.jinorgbio.2016.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 09/02/2016] [Accepted: 09/13/2016] [Indexed: 12/13/2022]
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19
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Qin JL, Qin QP, Wei ZZ, Yu YC, Meng T, Wu CX, Liang YL, Liang H, Chen ZF. Stabilization of c-myc G-Quadruplex DNA, inhibition of telomerase activity, disruption of mitochondrial functions and tumor cell apoptosis by platinum(II) complex with 9-amino-oxoisoaporphine. Eur J Med Chem 2016; 124:417-427. [DOI: 10.1016/j.ejmech.2016.08.054] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 07/29/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
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20
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Jiang Y, Chen AC, Kuang GT, Wang SK, Ou TM, Tan JH, Li D, Huang ZS. Design, synthesis and biological evaluation of 4-anilinoquinazoline derivatives as new c-myc G-quadruplex ligands. Eur J Med Chem 2016; 122:264-279. [PMID: 27372288 DOI: 10.1016/j.ejmech.2016.06.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/17/2016] [Accepted: 06/20/2016] [Indexed: 11/18/2022]
Abstract
A series of 4-anilinoquinazoline derivatives were designed and synthesized as novel c-myc promoter G-quadruplex binding ligands. Subsequent biophysical and biochemical evaluation demonstrated that the introduction of aniline group at 4-position of quinazoline ring and two side chains with terminal amino group improved their binding affinity and stabilizing ability to G-quadruplex DNA. RT-PCR assay and Western blot showed that compound 7a could down-regulate transcription and expression of c-myc gene in Hela cells, which was consistent with the behavior of an effective G-quadruplex ligand targeting c-myc oncogene. More importantly, RTCA and colony formation assays indicated that 7a obviously inhibited Hela cells proliferation, without influence on normal primary cultured mouse mesangial cells. Flow cytometric assays suggested that 7a induced Hela cells to arrest in G0/G1 phase both in a time-dependent and dose-dependent manner.
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Affiliation(s)
- Yin Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Ai-Chun Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Guo-Tao Kuang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Shi-Ke Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Tian-Miao Ou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Jia-Heng Tan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Ding Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Zhi-Shu Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China.
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21
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Zhang HR, Meng T, Liu YC, Chen ZF, Liu YN, Liang H. Synthesis, characterization and biological evaluation of a cobalt(II) complex with 5-chloro-8-hydroxyquinoline as anticancer agent. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3498] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hai-Rong Zhang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan 410083 PR China
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University; Guilin Guangxi 541004 PR China
- College of Materials and Environmental Engineering; Hunan University of Humanities, Science and Technology; Loudi Hunan 417000 PR China
| | - Ting Meng
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University; Guilin Guangxi 541004 PR China
| | - Yan-Cheng Liu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University; Guilin Guangxi 541004 PR China
| | - Zhen-Feng Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University; Guilin Guangxi 541004 PR China
| | - You-Nian Liu
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan 410083 PR China
| | - Hong Liang
- College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan 410083 PR China
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University; Guilin Guangxi 541004 PR China
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22
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Wu Q, Zheng K, Liao S, Ding Y, Li Y, Mei W. Arene Ruthenium(II) Complexes as Low-Toxicity Inhibitor against the Proliferation, Migration, and Invasion of MDA-MB-231 Cells through Binding and Stabilizing c-myc G-Quadruplex DNA. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00820] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Qiong Wu
- Key
Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou, 510632, China
| | - Kangdi Zheng
- School
of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Siyan Liao
- School
of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 510180, China
| | - Yang Ding
- School
of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yangqiu Li
- Key
Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou, 510632, China
| | - Wenjie Mei
- School
of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
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23
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Zhang HR, Meng T, Liu YC, Qin QP, Chen ZF, Liu YN, Liang H. Synthesis, Structure Characterization and Antitumor Activity Study of a New Iron(III) Complex of 5-Nitro-8-hydroxylquinoline (HNOQ). Chem Pharm Bull (Tokyo) 2016; 64:1208-17. [DOI: 10.1248/bpb.c16-00330] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hai-Rong Zhang
- College of Chemistry and Chemical Engineering, Central South University
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University
- College of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology
| | - Ting Meng
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University
| | - Yan-Cheng Liu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University
| | - Qi-Pin Qin
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University
| | - Zhen-Feng Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University
| | - You-Nian Liu
- College of Chemistry and Chemical Engineering, Central South University
| | - Hong Liang
- College of Chemistry and Chemical Engineering, Central South University
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University
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24
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Coban B, Tekin IO, Sengul A, Yildiz U, Kocak I, Sevinc N. DNA studies of newly synthesized heteroleptic platinum(II) complexes [Pt(bpy)(iip)](2+) and [Pt(bpy)(miip)](2.). J Biol Inorg Chem 2015; 21:163-75. [PMID: 26626200 DOI: 10.1007/s00775-015-1317-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 11/18/2015] [Indexed: 12/20/2022]
Abstract
Two new mono-nuclear heteroleptic platinum(II) complexes, [Pt(bpy)(iip)](PF6)2 (1) and [Pt(bpy)(miip)](PF6)2·2H2O (2) (bpy is 2,2'-bipyridine; iip is 2-(imidazo-4-yl)-1H-imidazo[4,5-f] [1,10] phenanthroline; miip is 2-(1-methylimidazo-2-yl)-1H-imidazo[4,5-f] [1, 10] phenanthroline), have been synthesized and fully characterized by CHN analysis, electrospray ionization and MALDI-TOF mass spectrometry, (1)H NMR, FT-IR (ATR), and UV-Vis spectrophotometer. Cytotoxicity, ability to inhibit DNA transcription and DNAse activity of the complexes were studied. The DNA-binding behaviors of both complexes have also been studied by spectroscopic methods, cyclic voltammetry and viscosity measurements. Both complexes showed cytotoxic properties and 2 was more cytotoxic than 1. DNA transcription was inhibited upon increasing concentrations of both complexes. The complex 2 was found to be a better inhibitor than 1. The same pattern can be seen in the DNAse profile of the complexes. In addition, 2 was found to promote cleavage of pBR322 DNA at a lower concentration than 1. The spectroscopic, electrochemical and viscometric results indicate that both complexes show some degree of binding to DNA in an intercalative mode, resulting in intrinsic binding constants K b = 3.55 ± 0.6 × 10(4) M(-1) and 7.01 ± 0.9 × 10(4) M(-1) for 1 and 2, respectively. The difference in the DNA-binding affinities of 1 and 2 may presumably be explained by the methylated imidazole nitrogen atom that makes the compound more hydrophobic and gives better intercalative binding ability to DNA's hydrophobic environment.
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Affiliation(s)
- Burak Coban
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey.
| | - Ishak Ozel Tekin
- Department of Immunology, Faculty of Medicine, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Abdurrahman Sengul
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Ufuk Yildiz
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Izzet Kocak
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Nergis Sevinc
- Department of Immunology, Faculty of Medicine, Bulent Ecevit University, 67100, Zonguldak, Turkey
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25
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Zou HH, Wang L, Long ZX, Qin QP, Song ZK, Xie T, Zhang SH, Liu YC, Lin B, Chen ZF. Preparation of 4-([2,2':6',2″-terpyridin]-4'-yl)-N,N-diethylaniline Ni(II) and Pt(II) complexes and exploration of their in vitro cytotoxic activities. Eur J Med Chem 2015; 108:1-12. [PMID: 26619388 DOI: 10.1016/j.ejmech.2015.11.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 10/20/2015] [Accepted: 11/03/2015] [Indexed: 11/17/2022]
Abstract
Two metal complexes of NiLCl2 (1) and [PtLCl]Cl (2) with 4-([2,2':6',2″-terpyridin]-4'-yl)-N,N-diethylaniline (L) were synthesized and characterized. 1 and 2 exhibited selective cytotoxicity to T-24 cells more than L, compared with the normal liver cell line (HL-7702). Various experiments showed that L, 1 and 2 caused T-24 cell cycle arrest at S phase, as shown by the down-regulation of cdc25 A, cyclin A, cyclin B and CDK2 and the up-regulation of p21, p27 and p53. Furthermore, complexes 1 and 2, especially complex 2, acted as telomerase inhibitors targeting c-myc G-quadruplex DNA and triggered cell apoptosis. In addition, 1 and 2 also caused mitochondrial dysfunction. Taken together, we found that 1 and 2 exerted their cytotoxic activity mainly via inhibiting telomerase by interaction with c-myc quadruplex and disruption of mitochondrial function.
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Affiliation(s)
- Hua-Hong Zou
- State Key Laboratory Cultivation Base for The Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China.
| | - Li Wang
- State Key Laboratory Cultivation Base for The Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
| | - Zhi-Xiang Long
- Guangxi Zhuang Autonomous Region Center for Analysis and Test Research, 32 Xinghu Road, Nanning 530022, PR China
| | - Qi-Pin Qin
- State Key Laboratory Cultivation Base for The Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
| | - Zhong-Kui Song
- Guangxi Zhuang Autonomous Region Center for Analysis and Test Research, 32 Xinghu Road, Nanning 530022, PR China
| | - Tao Xie
- Guangxi Zhuang Autonomous Region Center for Analysis and Test Research, 32 Xinghu Road, Nanning 530022, PR China
| | - Shu-Hua Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Yan-Cheng Liu
- State Key Laboratory Cultivation Base for The Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
| | - Bin Lin
- Nanning City No. 2 People's Hospital, 13 Dancun Road, Nanning 530031, PR China
| | - Zhen-Feng Chen
- State Key Laboratory Cultivation Base for The Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China
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