1
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Saxena A, Majee S, Ray D, Saha B. Inhibition of cancer cells by Quinoline-Based compounds: A review with mechanistic insights. Bioorg Med Chem 2024; 103:117681. [PMID: 38492541 DOI: 10.1016/j.bmc.2024.117681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
This article includes a thorough examination of the inhibitory potential of quinoline-based drugs on cancer cells, as well as an explanation of their modes of action. Quinoline derivatives, due to their various chemical structures and biological activity, have emerged as interesting candidates in the search for new anticancer drugs. The review paper delves into the numerous effects of quinoline-based chemicals in cancer progression, including apoptosis induction, cell cycle modification, and interference with tumor-growth signaling pathways. Mechanistic insights on quinoline derivative interactions with biological targets enlightens their therapeutic potential. However, obstacles such as poor bioavailability, possible off-target effects, and resistance mechanisms make it difficult to get these molecules from benchside to bedside. Addressing these difficulties might be critical for realizing the full therapeutic potential of quinoline-based drugs in cancer treatment.
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Affiliation(s)
- Anjali Saxena
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh
| | - Suman Majee
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh; Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh
| | - Devalina Ray
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh; Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh
| | - Biswajit Saha
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh.
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2
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Banjan B, Koshy AJ, Kalath H, John L, Soman S, Raju R, Revikumar A. Potential protein kinase inhibitors that target G-quadruplex DNA structures in the human telomeric regions. Mol Divers 2024:10.1007/s11030-023-10768-7. [PMID: 38509417 DOI: 10.1007/s11030-023-10768-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/10/2023] [Indexed: 03/22/2024]
Abstract
Telomeric regions contain Guanine-rich sequences arranged in a planar manner and connected by Hoogsteen hydrogen bonds that can fold into G-quadruplex (G4) DNA structures, and can be stabilized by monovalent metal cations. The presence of G4 DNA holds significance in cancer-related processes, especially due to their regulatory potential at transcriptional and translational levels of oncogene and tumor suppressor genes. The objective of this current research is to explore the evolving realm of FDA-approved protein kinase inhibitors, with a specific emphasis on their capacity to stabilize the G4 DNA structures formed at the human telomeric regions. This involves investigating the possibility of repurposing FDA-approved protein kinase inhibitors as a novel approach for targeting multiple cancer types. In this context, we have selected 16 telomeric G4 DNA structures as targets and 71 FDA-approved small-molecule protein kinase inhibitors as ligands. To investigate their binding affinities, molecular docking of human telomeric G4 DNA with nuclear protein kinase inhibitors and their corresponding co-crystalized ligands were performed. We found that Ponatinib and Lapatinib interact with all the selected G4 targets, the binding free energy calculations, and molecular dynamic simulations confirm their binding efficacy and stability. Thus, it is hypothesized that Ponatinib and Lapatinib may stabilize human telomeric G4 DNA in addition to their ability to inhibit BCR-ABL and the other members of the EGFR family. As a result, we also hypothesize that the stabilization of G4 DNA might represent an additional underlying mechanism contributing to their efficacy in exerting anti-cancer effects.
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Affiliation(s)
- Bhavya Banjan
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India
| | - Abel John Koshy
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India
| | - Haritha Kalath
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India
| | - Levin John
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India
| | - Sowmya Soman
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India
| | - Rajesh Raju
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India.
| | - Amjesh Revikumar
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India.
- Kerala Genome Data Centre, Kerala Development and Innovation Strategic Council, Vazhuthacaud, Thiruvananthapuram, Kerala, 695014, India.
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3
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Garypidou A, Ypsilantis K, Plakatouras JC, Garoufis A. Dual-Emissive Rectangular Supramolecular Pt(II)- p-Biphenyl with 4,4'-Bipyridine Derivative Metallacycles: Stepwise Synthesis and Photophysical Properties. Molecules 2023; 28:7261. [PMID: 37959681 PMCID: PMC10649779 DOI: 10.3390/molecules28217261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Mixed-ligand tetranuclear supramolecular coordination complexes (SCCs) of Pt(II)-p-biphenyl and bridging ligands derivatives of 4,4'-bypiridine (8)-(10), were synthesized and characterized. The SCCs were synthesized stepwise, starting from the Pt-p-biphenyl -Pt core. The crystal structure of complex {[Pt(2,2'-bpy)]4(μ-bph)2(μ-(4,4'-bpy)2}{PF6}4 (2,2'-bpy = 2,2'-bipyridine, bph = p-biphenyl and 4,4'-bpy = 4,4' bipyridine), was determined using single-crystal diffraction methods. The emission profile of the tetranuclear complexes (8)-(10) was influenced by the length of the bridging ligands and was found to depend on solvent polarity. Dual-emission patterns in methanol-water mixtures were observed only in the cases of complexes (9) and (10), attributed to aggregation-induced emission phenomena.
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Affiliation(s)
- Antonia Garypidou
- Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece; (A.G.); (K.Y.); (J.C.P.)
| | - Konstantinos Ypsilantis
- Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece; (A.G.); (K.Y.); (J.C.P.)
| | - John C. Plakatouras
- Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece; (A.G.); (K.Y.); (J.C.P.)
- Institute of Materials Science and Computing, University Research Centre of Ioannina (URCI), GR-45110 Ioannina, Greece
| | - Achilleas Garoufis
- Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece; (A.G.); (K.Y.); (J.C.P.)
- Institute of Materials Science and Computing, University Research Centre of Ioannina (URCI), GR-45110 Ioannina, Greece
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4
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Zegers J, Peters M, Albada B. DNA G-quadruplex-stabilizing metal complexes as anticancer drugs. J Biol Inorg Chem 2023; 28:117-138. [PMID: 36456886 PMCID: PMC9981530 DOI: 10.1007/s00775-022-01973-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 11/17/2022] [Indexed: 12/04/2022]
Abstract
Guanine quadruplexes (G4s) are important targets for cancer treatments as their stabilization has been associated with a reduction of telomere ends or a lower oncogene expression. Although less abundant than purely organic ligands, metal complexes have shown remarkable abilities to stabilize G4s, and a wide variety of techniques have been used to characterize the interaction between ligands and G4s. However, improper alignment between the large variety of experimental techniques and biological activities can lead to improper identification of top candidates, which hampers progress of this important class of G4 stabilizers. To address this, we first review the different techniques for their strengths and weaknesses to determine the interaction of the complexes with G4s, and provide a checklist to guide future developments towards comparable data. Then, we surveyed 74 metal-based ligands for G4s that have been characterized to the in vitro level. Of these complexes, we assessed which methods were used to characterize their G4-stabilizing capacity, their selectivity for G4s over double-stranded DNA (dsDNA), and how this correlated to bioactivity data. For the biological activity data, we compared activities of the G4-stabilizing metal complexes with that of cisplatin. Lastly, we formulated guidelines for future studies on G4-stabilizing metal complexes to further enable maturation of this field.
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Affiliation(s)
- Jaccoline Zegers
- grid.4818.50000 0001 0791 5666Laboratory of Organic Chemistry, Wageningen University and Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Maartje Peters
- grid.4818.50000 0001 0791 5666Laboratory of Organic Chemistry, Wageningen University and Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
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5
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Moreno-Alcántar G, Casini A. Bioinorganic supramolecular coordination complexes and their biomedical applications. FEBS Lett 2023; 597:191-202. [PMID: 36345593 DOI: 10.1002/1873-3468.14535] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022]
Abstract
The field of Bioinorganic Supramolecular Chemistry is an emerging research area including metal-based supramolecules resulting from coordination-driven self-assembly (CDSA), whereby metal ions and organic ligands can be easily linked by metal-ligand bonds via Lewis' acid/base interactions. The focus of this 'In a Nutshell' review will be on the family of supramolecular coordination complexes, discrete entities formed by CDSA, which have recently captured widespread attention as a new class of versatile multifunctional materials with broad biological applications including molecular recognition, biosensing, therapy, imaging and drug delivery. Herein, we provide a summary of the state-of-the-art use of these systems in biomedicine, with some selected representative examples, as well as our visions of the challenges and possible directions in the field.
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Affiliation(s)
| | - Angela Casini
- Department of Chemistry, Technical University of Munich (TUM), Garching bei München, Germany
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6
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Zhu J, Yan Z, Bošković F, Haynes CJE, Kieffer M, Greenfield JL, Wang J, Nitschke JR, Keyser UF. Fe II 4L 4 tetrahedron binds and aggregates DNA G-quadruplexes. Chem Sci 2021; 12:14564-14569. [PMID: 34881008 PMCID: PMC8580047 DOI: 10.1039/d1sc04430c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/05/2021] [Indexed: 12/25/2022] Open
Abstract
Since the discovery of the G-quadruplex (G4) structure in telomeres in 1980s, studies have established the role it plays in various biological processes. Here we report binding between DNA G4 and a self-assembled tetrahedral metal-organic cage 1 and consequent formation of aggregates, whereby the cage protects the DNA G4 from cleavage by S1 nuclease. We monitor DNA–cage interaction using fluorescence spectroscopy, firstly by quenching of a fluorescent label appended to the 5′ end of G4. Secondly, we detect the decrease in fluorescence of the G4-selective dyes thioflavin-T and Zn-PPIX bound to various DNA G4 sequences following the addition of cage 1. Our results demonstrate that 1 interacts with a wide range of G4s. Moreover, gel electrophoresis, circular dichroism and dynamic light scattering measurements establish the binding of 1 to G4 and indicate the formation of aggregate structures. Finally, we find that DNA G4 contained in an aggregate of cage 1 is protected from cleavage by S1 nuclease. We find FeII4L4 binds to G-quadruplex and forms aggregates. G-quadruplex in the aggregates is protected from digestion by S1 nuclease.![]()
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Affiliation(s)
- Jinbo Zhu
- Cavendish Laboratory, University of Cambridge JJ Thompson Avenue Cambridge CB3 0HE UK
| | - Zhiqiang Yan
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 P. R. China
| | - Filip Bošković
- Cavendish Laboratory, University of Cambridge JJ Thompson Avenue Cambridge CB3 0HE UK
| | - Cally J E Haynes
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Marion Kieffer
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Jake L Greenfield
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Jin Wang
- Department of Chemistry and of Physics, State University of New York at Stony Brook Stony Brook New York 11794-3400 USA
| | - Jonathan R Nitschke
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Ulrich F Keyser
- Cavendish Laboratory, University of Cambridge JJ Thompson Avenue Cambridge CB3 0HE UK
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7
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Palma E, Carvalho J, Cruz C, Paulo A. Metal-Based G-Quadruplex Binders for Cancer Theranostics. Pharmaceuticals (Basel) 2021; 14:605. [PMID: 34201682 PMCID: PMC8308583 DOI: 10.3390/ph14070605] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/21/2021] [Accepted: 06/21/2021] [Indexed: 12/11/2022] Open
Abstract
The ability of fluorescent small molecules, such as metal complexes, to selectively recognize G-quadruplex (G4) structures has opened a route to develop new probes for the visualization of these DNA structures in cells. The main goal of this review is to update the most recent research efforts towards the development of novel cancer theranostic agents using this type of metal-based probes that specifically recognize G4 structures. This encompassed a comprehensive overview of the most significant progress in the field, namely based on complexes with Cu, Pt, and Ru that are among the most studied metals to obtain this class of molecules. It is also discussed the potential interest of obtaining G4-binders with medical radiometals (e.g., 99mTc, 111In, 64Cu, 195mPt) suitable for diagnostic and/or therapeutic applications within nuclear medicine modalities, in order to enable their theranostic potential.
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Affiliation(s)
- Elisa Palma
- C2TN-Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal;
| | - Josué Carvalho
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.C.); (C.C.)
| | - Carla Cruz
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (J.C.); (C.C.)
| | - António Paulo
- C2TN-Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal;
- DECN-Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
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8
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Li J, Yang Q, Zhao L, Xu M, Zhang H. Carbazole derivative as an effective telomeric G-quadruplex DNA binder. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Xu CX, Liu LY, Lv B, Zhao HY, Cao Q, Zhai T, Mao ZW. Two novel fan-shaped trinuclear Pt(ii) complexes act as G-quadruplex binders and telomerase inhibitors. Dalton Trans 2020; 49:9322-9329. [PMID: 32579629 DOI: 10.1039/d0dt01767a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Two new trinuclear Pt(ii) complexes {[Pt(dien)]3(tib)}(NO3)6 (1) and {[Pt(dpa)]3(tib)}(NO3)6 (2) (dien: diethylenetriamine, dpa: bis-(2-pyridylmethyl)amine, tib: 1,3,5-tris(1H-imidazol-1-yl)benzene) have been designed, synthesized, characterized and applied to a series of biochemical studies. We found that both of the Pt(ii) complexes exhibited much better selectivity for human telomeric G-quadruplex sequence than promoter G-quadruplexes (c-kit, c-myc, and bcl2) or duplex DNA. Both complexes displayed comparative stability and affinity towards human telomeric G-quadruplex by the studies from surface plasmon resonance, fluorescence resonance energy transfer and polymerase chain reaction stop assays. The circular dichroism indicated that both complexes could induce and stabilize anti-parallel G-quadruplex structures. Molecule docking presented that Pt(ii) complex intercalated into the large groove of human telomeric G-quadruplex (PDB ID: 143D). Furthermore, telomeric repeat amplification protocol assays quantitatively evaluated the inhibition of telomerase activity caused by the Pt(ii) complexes. The obtained IC50 values of 6.41 ± 0.042 μM and 2.67 ± 0.035 μM for 1 and 2, respectively, exhibited strong telomerase inhibitions. All results suggest that such fan-shaped trinuclear Pt(ii) complexes are effective and selective G-quadruplex binders, as well as strong telomerase inhibitors. This study provides insight into the development of human telomeric G-quadruplex targeted anticancer drugs based on the metal complex.
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Affiliation(s)
- Cui-Xia Xu
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing 211222, China and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Liu-Yi Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Bei Lv
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing 211222, China
| | - Hao-Yu Zhao
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing 211222, China
| | - Qian Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Teng Zhai
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
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10
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11
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Kench T, Vilar R. Metal complexes as G-quadruplex binders. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 2020. [DOI: 10.1016/bs.armc.2020.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Meng T, Qin QP, Zou HH, Wang K, Liang FP. Eighteen 5,7-Dihalo-8-quinolinol and 2,2'-Bipyridine Co(II) Complexes as a New Class of Promising Anticancer Agents. ACS Med Chem Lett 2019; 10:1603-1608. [PMID: 31857834 PMCID: PMC6912862 DOI: 10.1021/acsmedchemlett.9b00356] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 10/30/2019] [Indexed: 12/18/2022] Open
Abstract
![]()
Here
we first report the design of a series of bis-chelate Co(II) 5,7-dihalo-8-quinolinol-phenanthroline
derivative complexes, [Co(py)(QL1)2] (Co1),
[Co(py)(QL2)2] (Co2), [Co(Phen)(QL1)2] (Co3), [Co(Phen)(QL2)2] (Co4), [Co(DPQ)(QL1)2]·(CH3OH)4 (Co5), [Co(DPQ)(QL2)2] (Co6), [Co(DPPZ)(QL1)2]·CH3OH (Co7), [Co(MDP)(QL1)2]·3H2O (Co8), [Co(ODP)(QL1)2]·CH3OH (Co9), [Co(PPT)(QL1)2]·CH3OH (Co10), [Co(ClPT)(QL1)2] (Co11), [Co(dpy)(QL3)2] (Co12), [Co(mpy)(QL1)2] (Co13), [Co(Phen)(QL4)2] (Co14), [Co(ODP)(QL4)2] (Co15), [Co(mpy)(QL4)2]I (Co16), [Co(ClPT)(QL4)2] (Co17), and
[Co(ClPT)(QL5)2] (Co18), with 5,7-dihalo-8-quinolinol
and 2,2′-bipyridine mixed ligands. The antitumor activity of Co1–Co18 has been evaluated against human
HeLa (cervical) cancer cells in vitro (IC50 values = 0.8 nM–11.88 μM), as well as in vivo against HeLa xenograft tumor growth (TIR = 43.7%, p < 0.05). Importantly, Co7 exhibited high safety in vivo and was more effective in inhibiting HeLa tumor
xenograft growth (43.7%) than cisplatin (35.2%) under the same conditions
(2.0 mg/kg). In contrast, the H-QL1 and DPPZ ligands greatly enhanced
the activity and selectivity of Co7 in comparison to Co1–Co6, Co8–Co18, and previously reported cobalt(II) compounds. In addition, Co7 (0.8 nM) inhibited telomerase activity, caused G2/M phase
arrest, and induced mitochondrial dysfunction at a concentration 5662.5
times lower than Co1 (4.53 μM) in related assays.
Taken together, Co7 showed low toxicity, and the combination
could be a novel Co(II) antitumor compound candidate.
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Affiliation(s)
- Ting Meng
- 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
| | - Qi-Pin Qin
- 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
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, 1303 Jiaoyudong Road, Yulin 537000, P. R. China
| | - Hua-Hong 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
| | - Kai Wang
- 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
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Fu-Pei 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
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
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Domarco O, Kieler C, Pirker C, Dinhof C, Englinger B, Reisecker JM, Timelthaler G, García MD, Peinador C, Keppler BK, Berger W, Terenzi A. Subcellular Duplex DNA and G-Quadruplex Interaction Profiling of a Hexagonal Pt II Metallacycle. Angew Chem Int Ed Engl 2019; 58:8007-8012. [PMID: 31002438 PMCID: PMC6563712 DOI: 10.1002/anie.201900934] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/17/2019] [Indexed: 12/21/2022]
Abstract
Metal-driven self-assembly afforded a multitude of fascinating supramolecular coordination complexes (SCCs) with applications as catalysts, host-guest, and stimuli-responsive systems. However, the interest in the biological applications of SCCs is only starting to emerge and thorough characterization of their behavior in biological milieus is still lacking. Herein, we report on the synthesis and detailed in-cell tracking of a Pt2 L2 metallacycle. We show that our hexagonal supramolecule accumulates in cancer cell nuclei, exerting a distinctive blue fluorescence staining of chromatin resistant to UV photobleaching selectively in nucleolar G4-rich regions. SCC co-localizes with epitopes of the quadruplex-specific antibody BG4 and replaces other well-known G4 stabilizers. Moreover, the photophysical changes accompanying the metallacycle binding to G4s in solution (fluorescence quenching, absorption enhancement) also take place intracellularly, allowing its subcellular interaction tracking.
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Affiliation(s)
- Olaya Domarco
- Universidade da CoruñaDepartamento de Química y Centro de Investigacións Científicas AvanzadasE-15071 ACoruñaSpain
| | - Claudia Kieler
- Medical University of ViennaDepartment of Medicine IInstitute of Cancer Research and Comprehensive Cancer CenterBorschkegasse 8aA-1090ViennaAustria
| | - Christine Pirker
- Medical University of ViennaDepartment of Medicine IInstitute of Cancer Research and Comprehensive Cancer CenterBorschkegasse 8aA-1090ViennaAustria
| | - Carina Dinhof
- Medical University of ViennaDepartment of Medicine IInstitute of Cancer Research and Comprehensive Cancer CenterBorschkegasse 8aA-1090ViennaAustria
| | - Bernhard Englinger
- Medical University of ViennaDepartment of Medicine IInstitute of Cancer Research and Comprehensive Cancer CenterBorschkegasse 8aA-1090ViennaAustria
| | - Johannes M. Reisecker
- Medical University of ViennaDepartment of Medicine IInstitute of Cancer Research and Comprehensive Cancer CenterBorschkegasse 8aA-1090ViennaAustria
| | - Gerald Timelthaler
- Medical University of ViennaDepartment of Medicine IInstitute of Cancer Research and Comprehensive Cancer CenterBorschkegasse 8aA-1090ViennaAustria
| | - Marcos D. García
- Universidade da CoruñaDepartamento de Química y Centro de Investigacións Científicas AvanzadasE-15071 ACoruñaSpain
| | - Carlos Peinador
- Universidade da CoruñaDepartamento de Química y Centro de Investigacións Científicas AvanzadasE-15071 ACoruñaSpain
| | - Bernhard K. Keppler
- University of ViennaInstitute of Inorganic ChemistryWaehringerstrasse 42A-1090ViennaAustria
| | - Walter Berger
- Medical University of ViennaDepartment of Medicine IInstitute of Cancer Research and Comprehensive Cancer CenterBorschkegasse 8aA-1090ViennaAustria
| | - Alessio Terenzi
- University of ViennaInstitute of Inorganic ChemistryWaehringerstrasse 42A-1090ViennaAustria
- Present address: Donostia International Physics CenterPaseo Manuel de Lardizabal 420018DonostiaSpain
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14
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Domarco O, Kieler C, Pirker C, Dinhof C, Englinger B, Reisecker JM, Timelthaler G, García MD, Peinador C, Keppler BK, Berger W, Terenzi A. Subcellular Duplex DNA and G‐Quadruplex Interaction Profiling of a Hexagonal Pt
II
Metallacycle. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900934] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Olaya Domarco
- Universidade da Coruña Departamento de Química y Centro de Investigacións Científicas Avanzadas E-15071 A Coruña Spain
| | - Claudia Kieler
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Christine Pirker
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Carina Dinhof
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Bernhard Englinger
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Johannes M. Reisecker
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Gerald Timelthaler
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Marcos D. García
- Universidade da Coruña Departamento de Química y Centro de Investigacións Científicas Avanzadas E-15071 A Coruña Spain
| | - Carlos Peinador
- Universidade da Coruña Departamento de Química y Centro de Investigacións Científicas Avanzadas E-15071 A Coruña Spain
| | - Bernhard K. Keppler
- University of Vienna Institute of Inorganic Chemistry Waehringerstrasse 42 A-1090 Vienna Austria
| | - Walter Berger
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Alessio Terenzi
- University of Vienna Institute of Inorganic Chemistry Waehringerstrasse 42 A-1090 Vienna Austria
- Present address: Donostia International Physics Center Paseo Manuel de Lardizabal 4 20018 Donostia Spain
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15
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Wu G, Chen L, Liu W, Yang D. Molecular Recognition of the Hybrid-Type G-Quadruplexes in Human Telomeres. Molecules 2019; 24:molecules24081578. [PMID: 31013622 PMCID: PMC6514847 DOI: 10.3390/molecules24081578] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 04/17/2019] [Accepted: 04/19/2019] [Indexed: 12/13/2022] Open
Abstract
G-quadruplex (G4) DNA secondary structures formed in human telomeres have been shown to inhibit cancer-specific telomerase and alternative lengthening of telomere (ALT) pathways. Thus, human telomeric G-quadruplexes are considered attractive targets for anticancer drugs. Human telomeric G-quadruplexes are structurally polymorphic and predominantly form two hybrid-type G-quadruplexes, namely hybrid-1 and hybrid-2, under physiologically relevant solution conditions. To date, only a handful solution structures are available for drug complexes of human telomeric G-quadruplexes. In this review, we will describe two recent solution structural studies from our labs. We use NMR spectroscopy to elucidate the solution structure of a 1:1 complex between a small molecule epiberberine and the hybrid-2 telomeric G-quadruplex, and the structures of 1:1 and 4:2 complexes between a small molecule Pt-tripod and the hybrid-1 telomeric G-quadruplex. Structural information of small molecule complexes can provide important information for understanding small molecule recognition of human telomeric G-quadruplexes and for structure-based rational drug design targeting human telomeric G-quadruplexes.
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Affiliation(s)
- Guanhui Wu
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, 575 W Stadium Ave, West Lafayette, IN 47907, USA.
| | - Luying Chen
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, 575 W Stadium Ave, West Lafayette, IN 47907, USA.
| | - Wenting Liu
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, 575 W Stadium Ave, West Lafayette, IN 47907, USA.
| | - Danzhou Yang
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, 575 W Stadium Ave, West Lafayette, IN 47907, USA.
- Purdue Center for Cancer Research, 201 S University St, West Lafayette, IN 47906, USA.
- Purdue Institute for Drug Discovery, 720 Clinic Dr, West Lafayette, IN 47907, USA.
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16
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Wragg D, de Almeida A, Bonsignore R, Kühn FE, Leoni S, Casini A. On the Mechanism of Gold/NHC Compounds Binding to DNA G-Quadruplexes: Combined Metadynamics and Biophysical Methods. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805727] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Darren Wragg
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
| | | | | | - Fritz E. Kühn
- Molecular Catalysis; Department of Chemistry; Catalysis Research Center; Technische Universität München; Lichtenbergstr. 4 85747 Garching bei München Germany
| | - Stefano Leoni
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
| | - Angela Casini
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
- Institute for Advanced Study; Technische Universität München; Lichtenbergstr. 2a 85747 Garching bei München Germany
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17
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Wragg D, de Almeida A, Bonsignore R, Kühn FE, Leoni S, Casini A. On the Mechanism of Gold/NHC Compounds Binding to DNA G-Quadruplexes: Combined Metadynamics and Biophysical Methods. Angew Chem Int Ed Engl 2018; 57:14524-14528. [DOI: 10.1002/anie.201805727] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Darren Wragg
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
| | | | | | - Fritz E. Kühn
- Molecular Catalysis; Department of Chemistry; Catalysis Research Center; Technische Universität München; Lichtenbergstr. 4 85747 Garching bei München Germany
| | - Stefano Leoni
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
| | - Angela Casini
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
- Institute for Advanced Study; Technische Universität München; Lichtenbergstr. 2a 85747 Garching bei München Germany
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18
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Saker L, Ali S, Masserot C, Kellermann G, Poupon J, Teulade-Fichou MP, Ségal-Bendirdjian E, Bombard S. Platinum Complexes Can Bind to Telomeres by Coordination. Int J Mol Sci 2018; 19:E1951. [PMID: 29970863 PMCID: PMC6073198 DOI: 10.3390/ijms19071951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/27/2018] [Accepted: 06/29/2018] [Indexed: 01/07/2023] Open
Abstract
It is suggested that several compounds, including G-quadruplex ligands, can target telomeres, inducing their uncapping and, ultimately, cell death. However, it has never been demonstrated whether such ligands can bind directly and quantitatively to telomeres. Here, we employed the property of platinum and platinum-G-quadruplex complexes to target G-rich sequences to investigate and quantify their covalent binding to telomeres. Using inductively coupled plasma mass spectrometry, surprisingly, we found that, in cellulo, in the presence of cisplatin, a di-functional platinum complex, telomeric DNA was platinated 13-times less than genomic DNA in cellulo, as compared to in vitro data. On the contrary, the amount of mono-functional platinum complexes (Pt-ttpy and Pt-tpy) bound either to telomeric or to genomic DNA was similar and occurred in a G-quadruplex independent-manner. Importantly, the quantification revealed that the low level of cisplatin bound to telomeric DNA could not be the direct physical cause of TRF2 displacement from telomeres. Altogether, our data suggest that platinum complexes can affect telomeres both directly and indirectly.
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Affiliation(s)
- Lina Saker
- INSERM UMR-S 1007, Cellular Homeostasis and Cancer, 75006 Paris, France.
- Paris Descartes University, Paris Sorbonne Cité, 75006 Paris, France.
| | - Samar Ali
- INSERM UMR-S 1007, Cellular Homeostasis and Cancer, 75006 Paris, France.
- Paris Sud University, Paris-Saclay University, 91405 Orsay, France.
| | - Caroline Masserot
- INSERM UMR-S 1007, Cellular Homeostasis and Cancer, 75006 Paris, France.
- Paris Sud University, Paris-Saclay University, 91405 Orsay, France.
| | - Guillaume Kellermann
- INSERM UMR-S 1007, Cellular Homeostasis and Cancer, 75006 Paris, France.
- Paris Descartes University, Paris Sorbonne Cité, 75006 Paris, France.
| | - Joel Poupon
- Laboratoire de Toxicologie-Biologique, Hôpital Lariboisière, 2 rue Ambroise Paré, 75475 Paris, France.
| | - Marie-Paule Teulade-Fichou
- Paris Sud University, Paris-Saclay University, 91405 Orsay, France.
- Institut Curie-Recherche, Bât. 112, Centre Universitaire, 91405 Orsay, France.
- CNRS UMR918, Centre Universitaire, 91405 Orsay, France.
- INSERM U1196, Centre Universitaire, 91405 Orsay, France.
| | - Evelyne Ségal-Bendirdjian
- INSERM UMR-S 1007, Cellular Homeostasis and Cancer, 75006 Paris, France.
- Paris Descartes University, Paris Sorbonne Cité, 75006 Paris, France.
- Paris Sud University, Paris-Saclay University, 91405 Orsay, France.
| | - Sophie Bombard
- INSERM UMR-S 1007, Cellular Homeostasis and Cancer, 75006 Paris, France.
- Paris Descartes University, Paris Sorbonne Cité, 75006 Paris, France.
- Paris Sud University, Paris-Saclay University, 91405 Orsay, France.
- Institut Curie-Recherche, Bât. 112, Centre Universitaire, 91405 Orsay, France.
- CNRS UMR918, Centre Universitaire, 91405 Orsay, France.
- INSERM U1196, Centre Universitaire, 91405 Orsay, France.
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19
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Domarco O, Lötsch D, Schreiber J, Dinhof C, Van Schoonhoven S, García MD, Peinador C, Keppler BK, Berger W, Terenzi A. Self-assembled Pt 2L 2 boxes strongly bind G-quadruplex DNA and influence gene expression in cancer cells. Dalton Trans 2018; 46:329-332. [PMID: 27918050 DOI: 10.1039/c6dt03876j] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Supramolecular Pt(ii) quadrangular boxes bind native and G-quadruplex DNA motifs in a size-dependent fashion. Three Pt molecular squares of distinct size show biological activity against cancer cells and heavily influence the expression of genes known to form G-quadruplexes in their promoter regions. The smallest Pt-box displays less activity but more selectivity for a quadruplex formed in the c-Kit gene.
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Affiliation(s)
- O Domarco
- Universidade da Coruña, Departamento de Química Fundamental and Centro de Investigacións Científicas Avanzadas, Facultade de Ciencias, E-15071 A Coruña, Spain.
| | - D Lötsch
- Medical University Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090 Vienna, Austria
| | - J Schreiber
- Medical University Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090 Vienna, Austria
| | - C Dinhof
- Medical University Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090 Vienna, Austria
| | - S Van Schoonhoven
- Medical University Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090 Vienna, Austria
| | - M D García
- Universidade da Coruña, Departamento de Química Fundamental and Centro de Investigacións Científicas Avanzadas, Facultade de Ciencias, E-15071 A Coruña, Spain.
| | - C Peinador
- Universidade da Coruña, Departamento de Química Fundamental and Centro de Investigacións Científicas Avanzadas, Facultade de Ciencias, E-15071 A Coruña, Spain.
| | - B K Keppler
- University of Vienna, Institute of Inorganic Chemistry, Waehringerstrasse 42, A-1090 Vienna, Austria and Research Platform "Translational Cancer Therapy Research", University of Vienna and Medical University of Vienna, Vienna, Austria.
| | - W Berger
- Medical University Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090 Vienna, Austria and Research Platform "Translational Cancer Therapy Research", University of Vienna and Medical University of Vienna, Vienna, Austria.
| | - A Terenzi
- University of Vienna, Institute of Inorganic Chemistry, Waehringerstrasse 42, A-1090 Vienna, Austria and Research Platform "Translational Cancer Therapy Research", University of Vienna and Medical University of Vienna, Vienna, Austria.
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20
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Garci A, Castor KJ, Fakhoury J, Do JL, Di Trani J, Chidchob P, Stein RS, Mittermaier AK, Friščić T, Sleiman H. Efficient and Rapid Mechanochemical Assembly of Platinum(II) Squares for Guanine Quadruplex Targeting. J Am Chem Soc 2017; 139:16913-16922. [PMID: 29058892 DOI: 10.1021/jacs.7b09819] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We present a rapid and efficient method to generate a family of platinum supramolecular square complexes, including previously inaccessible targets, through the use of ball milling mechanochemistry. This one-pot, two-step process occurs in minutes and enables the synthesis of the squares [Pt4(en)4(N∩N)4][CF3SO3]8 (en= ethylenediamine, N∩N = 4,4'-bipyridine derivatives) from commercially available precursor K2PtCl4 in good to excellent yields. In contrast, solution-based assembly requires heating the reagents for weeks and gives lower yields. Mechanistic investigations into this remarkable rate acceleration revealed that solution-based assembly (refluxing for days) results in the formation of large oligomeric side-products that are difficult to break down into the desired squares. On the other hand, ball milling in the solid state is rapid and appears to involve smaller intermediates. We examined the binding of the new supramolecular squares to guanine quadruplexes, including oncogene and telomere-associated DNA and RNA sequences. Sub-micromolar binding affinities were obtained by fluorescence displacement assays (FID) and isothermal titration calorimetry (ITC), with binding preference to telomere RNA (TERRA) sequences. ITC showed a 1:1 binding stoichiometry of the metallosquare to TERRA, while the stoichiometry was more complex for telomeric quadruplex DNA and a double-stranded DNA control.
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Affiliation(s)
- Amine Garci
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Katherine J Castor
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Johans Fakhoury
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Jean-Louis Do
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Justin Di Trani
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Pongphak Chidchob
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Robin S Stein
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Anthony K Mittermaier
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Tomislav Friščić
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Hanadi Sleiman
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
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21
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Xi SF, Bao LY, Xu ZL, Wang YX, Ding ZD, Gu ZG. Enhanced Stabilization of G-Quadruplex DNA by [Ni4
L6
]8+
Cages with Large Rigid Aromatic Ligands. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700409] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sai-Fei Xi
- The Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 214122 Wuxi China
| | - Ling-Yu Bao
- The Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 214122 Wuxi China
| | - Zong-Li Xu
- The Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 214122 Wuxi China
| | - Yu-Xia Wang
- The Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 214122 Wuxi China
| | - Zheng-Dong Ding
- The Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 214122 Wuxi China
| | - Zhi-Guo Gu
- The Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 214122 Wuxi China
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22
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Zheng XH, Nie X, Fang Y, Zhang Z, Xiao Y, Mao Z, Liu H, Ren J, Wang F, Xia L, Huang J, Zhao Y. A Cisplatin Derivative Tetra-Pt(bpy) as an Oncotherapeutic Agent for Targeting ALT Cancer. J Natl Cancer Inst 2017; 109:3752362. [PMID: 28521363 DOI: 10.1093/jnci/djx061] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 03/13/2017] [Indexed: 11/14/2022] Open
Abstract
Background In approximately 15% of human cancers, telomere length is maintained independently of telomerase by the homologous recombination (HR)-mediated alternative lengthening of telomeres (ALT) pathway. Whether the ALT pathway can be exploited for therapeutic treatment remains unknown. The purpose of this study is to develop oncotherapeutic agent to target ALT cancers. Methods Surface plasmon resonance assay, antibody to G-quadruplex, and fluorescence in situ hybridization (FISH) were used to discover Tetra-Pt(bpy), a cisplatin derivative that specifically targets telomeric G-quadruplex. We used immunofluorescence, FISH, C-circle assay, and chromosome orientation FISH to evaluate the inhibitory effect of Tetra-Pt(bpy) on ALT activity in human ALT cancers. The shortening of telomere length induced by Tetra-Pt(bpy) was determined by telomere restriction fragment or Q-FISH. Cell destination after Tetra-Pt(bpy) treatment was determined by β-gal staining or apoptosis assay. Nude mice (n = 4 per group) were injected with U2OS cells to evaluate the effects of Tetra-Pt(bpy) on tumor growth. All statistical tests were two-sided. Results Tetra-Pt(bpy) inhibits the strand invasion/annealing step of telomeric homologous recombination by selectively converting telomeric ssDNA to a G-quadruplex. ALT-cells treated with Tetra-Pt(bpy) show fewer ALT-associated promyelocytic leukemia bodies (untreated: mean±SD = 5.9±0.2 vs treated: mean±SD = 3.1±0.1, P < .001), fewer extrachromosomal C-circles (untreated: mean±SD = 100.5±1.6 vs treated: mean±SD = 18.0±1.7, P < .001), and reduced telomere sister chromatin exchanges (untreated: mean±SD = 25.2%±1.5% vs treated: mean±SD = 13.1%±1.9%, P < .001). Consequently, critically short telomeres accumulate after multiple population doublings (untreated: mean±SD = 18.9%±1.7% vs treated: mean±SD = 57.4%±2.2%, P < .001), resulting in cell death by apoptosis or senescence. In vivo, Tetra-Pt(bpy) severely inhibits the growth of ALT-cell xenograft tumors in mice (untreated: mean±SD = 57.1±3.7 mm 3 vs treated: mean±SD = 19.0±3.2 mm 3 , P < .001). Importantly, Tetra-Pt(bpy) exhibits no adverse effects on proliferation, gene expression, or telomere metabolism in normal cells. Conclusions These results reveal the potential of Tetra-Pt(bpy) as a novel oncotherapeutic agent for targeting ALT cancer cells.
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Affiliation(s)
- Xiao-Hui Zheng
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China.,Sun Yat-sen University, Guangzhou, P. R. China; Medical School, Shenzhen University, Shenzhen, P. R. China
| | - Xin Nie
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China
| | - Yiming Fang
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China
| | - Zepeng Zhang
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China
| | - Yingnan Xiao
- School of basic Medical Sciences, Tianjin Medical University, Tianjin, P. R. China
| | - Zongwan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, P. R. China
| | - Haiying Liu
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China
| | - Jian Ren
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China.,Collaborative Innovation Center of High Performance Computing, National University of Defense Technology, Changsha, P. R. China
| | - Feng Wang
- School of basic Medical Sciences, Tianjin Medical University, Tianjin, P. R. China
| | - Lixin Xia
- Sun Yat-sen University, Guangzhou, P. R. China; Medical School, Shenzhen University, Shenzhen, P. R. China
| | - Junjiu Huang
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China
| | - Yong Zhao
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou, P. R. China.,Collaborative Innovation Center of High Performance Computing, National University of Defense Technology, Changsha, P. R. China
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23
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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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24
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Cao Q, Li Y, Freisinger E, Qin PZ, Sigel RKO, Mao ZW. G-quadruplex DNA targeted metal complexes acting as potential anticancer drugs. Inorg Chem Front 2017. [DOI: 10.1039/c6qi00300a] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarizes the recent development of G4 DNA targeted metal complexes and discusses their potential as anticancer drugs.
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Affiliation(s)
- Qian Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Yi Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Eva Freisinger
- University of Zurich
- Department of Chemistry
- CH-8057 Zurich
- Switzerland
| | - Peter Z. Qin
- Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | | | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- Guangzhou 510275
- China
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25
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Zheng XH, Nie X, Liu HY, Fang YM, Zhao Y, Xia LX. TMPyP4 promotes cancer cell migration at low doses, but induces cell death at high doses. Sci Rep 2016; 6:26592. [PMID: 27221067 PMCID: PMC4879555 DOI: 10.1038/srep26592] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 05/05/2016] [Indexed: 01/10/2023] Open
Abstract
TMPyP4 is widely considered as a potential photosensitizer in photodynamic therapy and a G-quadruplex stabilizer for telomerase-based cancer therapeutics. However, its biological effects including a possible adverse-effect are poorly understood. In this study, whole genome RNA-seq analysis was used to explore the alteration in gene expression induced by TMPyP4. Unexpectedly, we find that 27.67% of changed genes were functionally related to cell adhesion. Experimental evidences from cell adhesion assay, scratch-wound and transwell assay indicate that TMPyP4 at conventional doses (≤0.5 μM) increases cell-matrix adhesion and promotes the migration of tumor cells. In contrast, a high dose of TMPyP4 (≥2 μM) inhibits cell proliferation and induces cell death. The unintended “side-effect” of TMPyP4 on promoting cell migration suggests that a relative high dose of TMPyP4 is preferred for therapeutic purpose. These findings contribute to better understanding of biological effects induced by TMPyP4 and provide a new insight into the complexity and implication for TMPyP4 based cancer therapy.
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Affiliation(s)
- Xiao-Hui Zheng
- Medical School, Shenzhen University, Shenzhen 518060, P. R. China.,Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.,Collaborative Innovation Center of High Performance Computing, National University of Defense Technology, Changsha 410073, P. R. China
| | - Xin Nie
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.,Collaborative Innovation Center of High Performance Computing, National University of Defense Technology, Changsha 410073, P. R. China
| | - Hai-Ying Liu
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.,Collaborative Innovation Center of High Performance Computing, National University of Defense Technology, Changsha 410073, P. R. China
| | - Yi-Ming Fang
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.,Collaborative Innovation Center of High Performance Computing, National University of Defense Technology, Changsha 410073, P. R. China
| | - Yong Zhao
- Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.,Collaborative Innovation Center of High Performance Computing, National University of Defense Technology, Changsha 410073, P. R. China
| | - Li-Xin Xia
- Medical School, Shenzhen University, Shenzhen 518060, P. R. China
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26
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Xu CX, Zhang X, Zhou YW, Wang H, Cao Q, Shen Y, Ji LN, Mao ZW, Qin PZ. A Nitroxide-Tagged Platinum(II) Complex Enables the Identification of DNA G-Quadruplex Binding Mode. Chemistry 2016; 22:3405-3413. [PMID: 26845489 DOI: 10.1002/chem.201504960] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We reported a novel strategy for investigating small molecule binding to G-quadruplexes (GQs). A newly synthesized dinuclear platinum(II) complex (Pt2L) containing a nitroxide radical was shown to selectively bind a GQ-forming sequence derived from human telomere (hTel). Using the nitroxide moiety as a spin label, electron paramagnetic resonance (EPR) spectroscopy was carried out to investigate binding between Pt2L and hTel GQ. Measurements indicated that two molecules of Pt2L bind with one molecule of hTel GQ. The inter-spin distance measured between the two bound Pt2L, together with molecular docking analyses, revealed that Pt2L predominately binds to the neighboring narrow and wide grooves of the G-tetrads as hTel adopts the antiparallel conformation. The design and synthesis of nitroxide tagged GQ binders, and the use of spin-labeling/EPR to investigate their interactions with GQs, will aid the development of small molecules for manipulating GQs involved in crucial biological processes.
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Affiliation(s)
- Cui-Xia Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou, Guangdong, 510275 (P.R. China)
| | - Xiaojun Zhang
- Department of Chemistry, University of Southern California Los Angeles, California, 90089 (USA)
| | - Yi-Wei Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou, Guangdong, 510275 (P.R. China)
| | - Hanqiang Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou, Guangdong, 510275 (P.R. China)
| | - Qian Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou, Guangdong, 510275 (P.R. China)
| | - Yong Shen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou, Guangdong, 510275 (P.R. China)
| | - Liang-Nian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou, Guangdong, 510275 (P.R. China)
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry and Chemical Engineering, Sun Yat-Sen University Guangzhou, Guangdong, 510275 (P.R. China)
| | - Peter Z Qin
- Department of Chemistry, University of Southern California Los Angeles, California, 90089 (USA)
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27
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Xi SF, Bao LY, Lin JG, Liu QZ, Qiu L, Zhang FL, Wang YX, Ding ZD, Li K, Gu ZG. Enantiomers of tetrahedral metal–organic cages: a new class of highly efficient G-quadruplex ligands with potential anticancer activities. Chem Commun (Camb) 2016; 52:10261-4. [DOI: 10.1039/c6cc05743h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A new class of chiral tetrahedral cages efficiently stabilized antiparallel G-quadruplex DNA with moderate enantioselectivity and displayed promising cytotoxicity against several cancer cell lines.
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28
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Zheng XH, Mu G, Zhong YF, Zhang TP, Cao Q, Ji LN, Zhao Y, Mao ZW. Trigeminal star-like platinum complexes induce cancer cell senescence through quadruplex-mediated telomere dysfunction. Chem Commun (Camb) 2016; 52:14101-14104. [DOI: 10.1039/c6cc08254h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Trigeminal star-like platinum complexes induce cancer cell senescence through quadruplex-mediated telomeric DNA damage and telomere end-loss.
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Affiliation(s)
- Xiao-Hui Zheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Ge Mu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Yi-Fang Zhong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Tian-Peng Zhang
- School of Life Sciences
- SunYat-Sen University
- Guangzhou 510006
- China
| | - Qian Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Liang-Nian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Yong Zhao
- School of Life Sciences
- SunYat-Sen University
- Guangzhou 510006
- China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
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29
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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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30
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Zheng XH, Cao Q, Ding YL, Zhong YF, Mu G, Qin PZ, Ji LN, Mao ZW. Platinum(II) clovers targeting G-quadruplexes and their anticancer activities. Dalton Trans 2015; 44:50-3. [PMID: 25373495 DOI: 10.1039/c4dt02760d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two porphyrin-bridged tetranuclear platinum(II) complexes are found to effectively stabilize various kinds of G-quadruplexes. Their clover-like shape endows them with the capability of targeting G-quadruplexes rather than the double-stranded structure. Their excellent anticancer activity is the result of a dual effect, inhibition of the telomerase activity and repression of oncogene expression.
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Affiliation(s)
- Xiao-Hui Zheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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31
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McNeill SM, Preston D, Lewis JEM, Robert A, Knerr-Rupp K, Graham DO, Wright JR, Giles GI, Crowley JD. Biologically active [Pd2L4](4+) quadruply-stranded helicates: stability and cytotoxicity. Dalton Trans 2015; 44:11129-36. [PMID: 25997516 DOI: 10.1039/c5dt01259g] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There is emerging interest in the anti-proliferative effects of metallosupramolecular systems due to the different size and shape of these metallo-architectures compared to traditional small molecule drugs. Palladium(II)-containing systems are the most abundant class of metallosupramolecular complexes, yet their biological activity has hardly been examined. Here a small series of [Pd2(L)4](BF4)4 quadruply-stranded, dipalladium(II) architectures were screened for their cytotoxic effects against three cancer cell lines and one non-malignant line. The helicates exhibited a range of cytotoxic properties, with the most cytotoxic complex [Pd2(hextrz)4](BF4)4 possessing low micromolar IC50 values against all of the cell lines tested, while the other helicates displayed moderate or no cytotoxicity. Against the MDA-MB-231 cell line, which is resistant to platinum-based drugs, [Pd2(hextrz)4](BF4)4 was 7-fold more active than cisplatin. Preliminary mechanistic studies indicate that the [Pd2(hextrz)4](BF4)4 helicate does not induce cell death in the same way as clinically used metal complexes such as cisplatin. Rather than interacting with DNA, the helicate appears to disrupt the cell membrane. These studies represent the first biological characterisation of quadruply-stranded helicate architectures, and provide insight into the design requirements for the development of biologically active and stable palladium(II)-containing metallosupramolecular architectures.
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Affiliation(s)
- Samantha M McNeill
- Department of Pharmacology and Toxicology, University of Otago, P.O. Box 913, Dunedin, New Zealand.
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32
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Chen ZF, Qin QP, Qin JL, Liu YC, Huang KB, Li YL, Meng T, Zhang GH, Peng Y, Luo XJ, Liang H. Stabilization of G-quadruplex DNA, inhibition of telomerase activity, and tumor cell apoptosis by organoplatinum(II) complexes with oxoisoaporphine. J Med Chem 2015; 58:2159-79. [PMID: 25650792 DOI: 10.1021/jm5012484] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Two G-quadruplex ligands [Pt(L(a))(DMSO)Cl] (Pt1) and [Pt(L(b))(DMSO)Cl] (Pt2) have been synthesized and fully characterized. The two complexes are more selective for SK-OV-3/DDP tumor cells versus normal cells (HL-7702). It was found that both Pt1 and Pt2 could be a telomerase inhibitor targeting G-quadruplex DNA. This is the first report demonstrating that telomeric, c-myc, and bcl-2 G-quadruplexes and caspase-3/9 preferred to bind with Pt2 rather than Pt1, which also can induce senescence and apoptosis. The different biological behavior of Pt1 and Pt2 may correlate with the presence of a 6-hydroxyl group in L(b). Importantly, Pt1 and Pt2 exhibited higher safety in vivo and more effective inhibitory effects on tumor growth in the HCT-8 and NCI-H460 xenograft mouse model, compared with cisplatin. Taken together, these mechanistic insights indicate that both Pt1 and Pt2 display low toxicity and could be novel anticancer drug candidates.
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Affiliation(s)
- 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 , Yucai Road 15, Guilin 541004, P. R. China
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33
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Xu CX, Shen Y, Hu Q, Zheng YX, Cao Q, Qin PZ, Zhao Y, Ji LN, Mao ZW. Stabilization of human telomeric G-quadruplex and inhibition of telomerase activity by propeller-shaped trinuclear Pt(II) complexes. Chem Asian J 2014; 9:2519-26. [PMID: 24996049 DOI: 10.1002/asia.201402258] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 05/15/2014] [Indexed: 12/21/2022]
Abstract
Two novel propeller-shaped, trigeminal-ligand-containing, flexible trinuclear Pt(II) complexes, {[Pt(dien)]3(ptp)}(NO3)6 (1) and {[Pt(dpa)]3(ptp)}(NO3)6 (2) (dien: diethylenetriamine; dpa: bis-(2-pyridylmethyl)amine; ptp: 6'-(pyridin-3-yl)-3,2':4',3''-terpyridine), have been designed and synthesized, and their interactions with G-quadruplex (G4) sequences are characterized. A combination of biophysical and biochemical assays reveals that both Pt(II) complexes exhibit higher affinity for human telomeric (hTel) and c-myc promoter G4 sequences than duplex DNA. Complex 1 binds and stabilizes hTel G4 sequence more effectively than complex 2. Both complexes are found to induce and stabilize either antiparallel or parallel conformation of G4 structures. Molecular docking studies indicate that complex 1 binds into the large groove of the antiparallel hTel G4 structure (PDB ID: 143D) and complex 2 stacks onto the exposed G-quartet of the parallel hTel G4 structure (PDB ID: 1KF1). Telomeric repeat amplification protocol assays demonstrate that both complexes are good telomerase inhibitors, with IC50 values of (16.0±0.4) μM and (4.20±0.25) μM for 1 and 2, respectively. Collectively, the results suggest that these propeller-shaped flexible trinuclear Pt(II) complexes are effective and selective G4 binders and good telomerase inhibitors. This work provides valuable information for the interaction between multinuclear metal complexes with G4 DNA.
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Affiliation(s)
- Cui-Xia Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, Guangdong, 510275 (China), Fax: (+86) 20-84112245
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34
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Xu CX, Zheng YX, Zheng XH, Hu Q, Zhao Y, Ji LN, Mao ZW. V-shaped dinuclear Pt(II) complexes: selective interaction with human telomeric G-quadruplex and significant inhibition towards telomerase. Sci Rep 2013; 3:2060. [PMID: 23792883 PMCID: PMC3690394 DOI: 10.1038/srep02060] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 06/04/2013] [Indexed: 01/29/2023] Open
Abstract
A quaternized trigeminal ligand, 4-[4,6-di(4-pyridyl)-1,3,5-(2-triazinyl)]-1-methylpyridine-1-ium hexafluorophosphate (dptmp·PF6), and two derivative V-shaped dinuclear Pt(II) complexes, {[Pt(dien)]₂(dptmp)}(PF₆)₅ (1) and {[Pt(dpa)]₂(dptmp)}(PF₆)₅ (2), were synthesized, characterized and applied to a series of biochemical studies. FRET and SPR analyses showed these compounds, especially Pt(II) complexes, bound more strongly to human telomeric (hTel) G-quadruplex than to promoters (such as c-myc and bcl2) or to the duplex DNA. PCR-stop assays revealed that the Pt(II) complexes could bind to and stabilize G-quadruplex far more effectively than corresponding ligand. CD analyses further indicated the three compounds likely stabilized the formation of mixed-type parallel/antiparallel G-quadruplex structures. Their efficacy as telomerase inhibitors and potential anticancer drugs was explored via TRAP. The IC₅₀ value was determined to be 0.113 ± 0.019 μM for 1, indicating that it is one of the strongest known telomerase inhibitors. These results confirm that both V-shaped dinuclear Pt(II) complexes act as selective G-quadruplex binders and significant telomerase inhibitors.
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Affiliation(s)
- Cui-Xia Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
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35
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Yang Y, Shen J, Yu X, Qin G, Zhang M, Shen H, Mao Z, Ferrari M. Identification of an inhibitory mechanism of luteolin on the insulin-like growth factor-1 ligand-receptor interaction. Chembiochem 2013; 14:929-33. [PMID: 23630137 DOI: 10.1002/cbic.201300082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Indexed: 01/03/2023]
Abstract
Using single-molecule force measurement and fluorescence imaging, we have demonstrated that luteolin has an inhibitory effect on IGF-1 ligand-receptor binding, the initial step in IGF-1 signaling. This inhibition mechanism, which was confirmed by flow cytometry and molecular docking, could play a role in cancer therapy.
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Affiliation(s)
- Yong Yang
- Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave, Houston, TX 77030, USA.
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36
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Micco M, Collie GW, Dale AG, Ohnmacht SA, Pazitna I, Gunaratnam M, Reszka AP, Neidle S. Structure-based design and evaluation of naphthalene diimide G-quadruplex ligands as telomere targeting agents in pancreatic cancer cells. J Med Chem 2013; 56:2959-74. [PMID: 23514618 DOI: 10.1021/jm301899y] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Tetra-substituted naphthalene diimide (ND) derivatives with positively charged termini are potent stabilizers of human telomeric and gene promoter DNA quadruplexes and inhibit the growth of human cancer cells in vitro and in vivo. The present study reports the enhancement of the pharmacological properties of earlier ND compounds using structure-based design. Crystal structures of three complexes with human telomeric intramolecular quadruplexes demonstrate that two of the four strongly basic N-methyl-piperazine groups can be replaced by less basic morpholine groups with no loss of intermolecular interactions in the grooves of the quadruplex. The new compounds retain high affinity to human telomeric quadruplex DNA but are 10-fold more potent against the MIA PaCa-2 pancreatic cancer cell line, with IC50 values of ~10 nM. The lead compound induces cellular senescence but does not inhibit telomerase activity at the nanomolar dosage levels required for inhibition of cellular proliferation. Gene array qPCR analysis of MIA PaCa-2 cells treated with the lead compound revealed significant dose-dependent modulation of a distinct subset of genes, including strong induction of DNA damage responsive genes CDKN1A, DDIT3, GADD45A/G, and PPM1D, and repression of genes involved in telomere maintenance, including hPOT1 and PARP1.
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Affiliation(s)
- Marialuisa Micco
- The School of Pharmacy, University College London, London WC1N 1AX, UK
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37
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Zhuo FF, Xie WW, Yang YX, Zhang L, Wang P, Yuan R, Da CS. TMEDA-assisted effective direct ortho arylation of electron-deficient N-heteroarenes with aromatic Grignard reagents. J Org Chem 2013; 78:3243-9. [PMID: 23464705 DOI: 10.1021/jo400152f] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In the addition of TMEDA in toluene, aryl Grignards could effectively and site-specifically ortho-arylate electron-deficient heteroarenes under mild conditions. This endeavor successfully changed the old low-yielding reaction, aryl Grignard addition to N-heteroarenes, into an efficient procedure for heterobiaryls. The combination of the inexpensive aryl Grignards, TMEDA, the cost-free air, no use of any transition-metal catalyst, the mild reaction conditions, and the high-yielding gram-scale results enables this new procedure to be cost-effective and potentially utilizable in industry.
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Affiliation(s)
- Fang-Fang Zhuo
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, People's Republic of China
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39
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Barry NPE, Sadler PJ. Exploration of the medical periodic table: towards new targets. Chem Commun (Camb) 2013; 49:5106-31. [DOI: 10.1039/c3cc41143e] [Citation(s) in RCA: 570] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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40
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Zheng XH, Zhong YF, Tan CP, Ji LN, Mao ZW. Pt(ii) squares as selective and effective human telomeric G-quadruplex binders and potential cancer therapeutics. Dalton Trans 2012; 41:11807-12. [DOI: 10.1039/c2dt31303k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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