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Albaqami FF, Sahib AS, Alharthy KM, Altharawi A, Alshahrani MY, Jawad MA, Suliman M, Ahmad I. A phenanthroline-based erbium (III) complex: molecular docking, DNA/BSA -binding and biological evaluation. J Biomol Struct Dyn 2024:1-13. [PMID: 38174386 DOI: 10.1080/07391102.2023.2300130] [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: 08/04/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
With the help of both theoretical as well as experimental research, in vitro binding research with CT-DNA (calf thymus) and BSA (bovine serum albumin) were carefully examined to figure out the chemotherapeutic and pharmacokinetic facets of the Erbium complex, which contains 1,10-phenanthroline (Phen). The binding characteristics and the mechanism of complex's interaction with DNA as well as the protein were determined utilizing fluorescence quenching method. Findings indicated that the complex's interaction with DNA via groove binding into DNA's minor grooves, with their binding constants falling within the 104 M-1 range. Furthermore, thermodynamic characteristics and the fluorescence emission of the tryptophan residues of the protein were obtained through fluorescence quenching studies at different temperatures. According to the results of the binding constants, the protein's interactions with the Er- complex were moderate, demonstrating that the compound may be transported effectively by the protein. Molecular docking results supported that of the experimental research. The HeLa and MCF-7 cancer cell lines, along with the normal human fibroblast cell line, were used in an MTT assay evaluation of the Er-complex cytotoxicity. The Er-complex displayed a selective inhibitory effect on the proliferation of different cancer cells.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Faisal F Albaqami
- Pharmacology and Toxicology Department, College of Pharmacy, Prince Sattam bin Abdulaziz University, AlKharj, Saudi Arabia
| | - Ameer S Sahib
- Department of Pharmacy, Al- Mustaqbal University College, Hilla, Iraq
| | - Khalid M Alharthy
- Pharmacology and Toxicology Department, College of Pharmacy, Prince Sattam bin Abdulaziz University, AlKharj, Saudi Arabia
| | - Ali Altharawi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Mohammad Y Alshahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mohammed Abed Jawad
- Department of Medical Laboratories Technology, Al-Nisour University College, Iraq
| | - Muath Suliman
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
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2
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Thanoon RD, Ibadi EA, Ahmad I, Alamir HTA, Alwan M, Hashim FS, Khaled DW, Alkhafaji AT, Asiri M, Alsaalamy A. Experimental and theoretical investigations of Erbium complex: DNA/BSA interaction, anticancer and antibacterial studies. Front Chem 2023; 11:1266520. [PMID: 37701051 PMCID: PMC10493310 DOI: 10.3389/fchem.2023.1266520] [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: 07/25/2023] [Accepted: 08/14/2023] [Indexed: 09/14/2023] Open
Abstract
To assess the biological potential of an Er complex that contains a 2,2'-bipyridine ligand, various techniques such as multispectral and molecular modeling procedures were utilized to examine its DNA-binding ability, BSA binding affinity, antimicrobial effects, and anticancer properties. By analyzing fluorescent information and employing the vant' Hoff equation, important parameters such as the innate docking coefficient (Kb), Stern-Volmer coefficient (KSV), and thermodynamic properties including modifications in liberated energy (ΔG°), enthalpy (∆H°), and entropy (∆S°) were determined. The trial findings suggest that the compound can bind to DNA, primarily through groove binding. Additionally, the engagement between the Er compound and the protein BSA was examined using emission spectroscopy technique, revealing a powerful binding affinity between the compound and BSA. The Er complex binds to BSA primarily via hydrogen links and van der Waals forces, as indicated by the adverse values of ΔH° and ∆S°. Through a static quenching process, the complex significantly reduces the intrinsic fluorescence of BSA. Molecular binding calculations and rivalrous binding trials confirm that this compound dock to hydrophobic remains found in site III of BSA. Additionally, the Er complex demonstrates promising results in terms of its anticancer and antimicrobial activities based on screening tests.
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Affiliation(s)
- Raid D. Thanoon
- Department of Medical Biochemical Analysis, Cihan University-Erbil, Kurdistan Region, Iraq
| | - Emam Atiyah Ibadi
- Department of Pharmacy, Al-Mustaqbal University College, Babylon, Iraq
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Marim Alwan
- Medical Lab Techniques, College of Medical Technology, Al-Farahidi University, Baghdad, Iraq
| | - Furqan S. Hashim
- Department of Medical Laboratories Technology, Al-Nisour University College, Baghdad, Iraq
| | | | | | - Mohammed Asiri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ali Alsaalamy
- College of Technical Engineering, Imam Ja’afar Al‐Sadiq University, Baghdad, Iraq
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Raeisi Vanani A, Asadpour S, Aramesh-Boroujeni Z, Mobini Dehkordi M. Studying the interaction between the new neodymium (Nd) complex with the ligand of 1,10-phenanthroline with FS-DNA and BSA. Front Chem 2023; 11:1208503. [PMID: 37601904 PMCID: PMC10433770 DOI: 10.3389/fchem.2023.1208503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/18/2023] [Indexed: 08/22/2023] Open
Abstract
To learn more about the chemotherapeutic and pharmacokinetic properties of a neodymium complex containing 1,10-phenanthroline (dafone), In vitro binding was investigated with bovine serum albumin and fish-salmon DNA, using a variety of molecular modeling research and biophysical approaches. A variety of spectroscopic techniques including fluorescence and absorption were used to investigate the interplay between DNA/BSA and the neodymium complex. The findings revealed that the Nd complex had a high affinity for BSA and DNA interplays through van der Waals powers. In addition, the binding of the Nd complex to FS-DNA mainly in the groove binding mode clearly reflects with iodide quenching studies, ethidium bromide (EtBr) exclusion assay, ionic strength effect, and viscosity studies. It was observed that the Nd complex binds to FS-DNA through a minor groove with 3.81 × 105 (M-1). Also, Kb for BSA at 298 K was 5.19×105 (M-1), indicating a relatively high affinity of the Nd complex for DNA and BSA. In addition, a competitive study of a docking investigation revealed that the neodymium complex interacts at BSA site III. The results obtained from the binding calculations are well consistent with the experimental findings. Also, cytotoxicity studies of Nd complex were performed in MCF-7 and A-549 cell lines and the results show that this new complex has a selective inhibitory effect on the growth of various cancer cells.
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Affiliation(s)
- Ahmad Raeisi Vanani
- Department of Chemistry, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
| | - Saeid Asadpour
- Department of Chemistry, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
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4
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Samala S, Lim W, You DK, Lee KM, Jo H, Ok KM, Park J, Lee CH. Synthesis, photophysical properties and photo-induced cytotoxicity of novel tris(diazatriphenylene)ruthenium (II) complex. Bioorg Chem 2022; 128:106044. [DOI: 10.1016/j.bioorg.2022.106044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 11/30/2022]
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5
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DNA Interaction, DNA Photocleavage, Photocytotoxicity In Vitro, and Molecular Docking of Naphthyl-Appended Ruthenium Complexes. Molecules 2022; 27:molecules27123676. [PMID: 35744808 PMCID: PMC9227816 DOI: 10.3390/molecules27123676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/27/2022] [Accepted: 06/01/2022] [Indexed: 02/04/2023] Open
Abstract
With the development of metal-based drugs, Ru(II) compounds present potential applications of PDT (photodynamic therapy) and anticancer reagents. We herein synthesized two naphthyl-appended ruthenium complexes by the combination of the ligand with naphthyl and bipyridyl. The DNA affinities, photocleavage abilities, and photocytotoxicity were studied by various spectral methods, viscosity measurement, theoretical computation method, gel electrophoresis, and MTT method. Two complexes exhibited strong interaction with calf thymus DNA by intercalation. Production of singlet oxygen (1O2) led to obvious DNA photocleavage activities of two complexes under 365 nm light. Furthermore, two complexes displayed obvious photocytotoxicity and low dark cytotoxicity towards Hela, A549, and A375 cells.
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Rahaman SK, Mohammad M, Laskar RA, Siddiqui MR, Wabaidur SM, Islam MA, Alam SM, Ahmed F, Islam MM, Mir MH. A muconate bridged bipyridyl appended binuclear Cu(II) complex reveals dissimilar affinities to DNA and BSA protein. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hu X, Liu NY, Deng YQ, Wang S, Liu T, Liu XW. Photoinduced DNA Cleavage and Photocytotoxic of Phenanthroline-Based Ligand Ruthenium Compounds. Molecules 2021; 26:molecules26113471. [PMID: 34200469 PMCID: PMC8201372 DOI: 10.3390/molecules26113471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 11/23/2022] Open
Abstract
The photophysical and biological properties of two new phenanthroline-based ligand ruthenium complexes were investigated in detail. Their DNA interaction modes were determined to be the intercalation mode using spectra titration and viscosity measurements. Under irradiation, obvious photo-reduced DNA cleavages were observed in the two complexes via singlet oxygen generation. Furthermore, complex 2 showed higher DNA affinity, photocleavage activity, and singlet oxygen quantum yields than complex 1. The two complexes showed no toxicity towards tumor cells (HeLa, A549, and A375) in the dark. However, obvious photocytotoxicities were observed in the two complexes. Complex 2 exhibited large PIs (phototherapeutic indices) (ca. 400) towards HeLa cells. The study suggests that these complexes may act as DNA intercalators, DNA photocleavers, and photocytotoxic agents.
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Affiliation(s)
- Xia Hu
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China; (X.H.); (N.-Y.L.); (Y.-Q.D.); (S.W.); (T.L.)
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde 415000, China
- Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan University of Arts and Science, Changde 415000, China
| | - Ning-Yi Liu
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China; (X.H.); (N.-Y.L.); (Y.-Q.D.); (S.W.); (T.L.)
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde 415000, China
- Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan University of Arts and Science, Changde 415000, China
| | - Yuan-Qing Deng
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China; (X.H.); (N.-Y.L.); (Y.-Q.D.); (S.W.); (T.L.)
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde 415000, China
- Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan University of Arts and Science, Changde 415000, China
| | - Shan Wang
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China; (X.H.); (N.-Y.L.); (Y.-Q.D.); (S.W.); (T.L.)
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde 415000, China
- Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan University of Arts and Science, Changde 415000, China
| | - Ting Liu
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China; (X.H.); (N.-Y.L.); (Y.-Q.D.); (S.W.); (T.L.)
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde 415000, China
- Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan University of Arts and Science, Changde 415000, China
| | - Xue-Wen Liu
- Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China; (X.H.); (N.-Y.L.); (Y.-Q.D.); (S.W.); (T.L.)
- Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde 415000, China
- Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan University of Arts and Science, Changde 415000, China
- Correspondence: ; Tel.: +86-736-7186115
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Zong Z, Huang GM, Zhang X, Fan YH, Bi CF, Zhang DM, Yan XC, Zhang N. Synthesis, crystal structure, theoretical calculation, and DNA binding of a copper (II) complex with 3,5-dibromo-L-tyrosine. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1835961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ziao Zong
- Youjiang Medical University For Nationalities, Baise, PR China
| | - Gui-Mei Huang
- Youjiang Medical University For Nationalities, Baise, PR China
| | - Xia Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, PR China
| | - Yu-Hua Fan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, PR China
| | - Cai-Feng Bi
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, PR China
| | - Dong-Mei Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, PR China
| | - Xing-Chen Yan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, PR China
| | - Nan Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, PR China
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9
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Xue-Wen Liu, Liu NY, Deng YQ, Wang S, Liu T. Topoisomerase I Inhibition, DNA Photocleavage Activity, and G-Quadruplex DNA ‘Light Switch’ Based on Nitro-Substituted Ruthenium Complexes. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620080094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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10
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Ru(II) Complexes Bearing O, O-Chelated Ligands Induced Apoptosis in A549 Cells through the Mitochondrial Apoptotic Pathway. Bioinorg Chem Appl 2020; 2020:8890950. [PMID: 32879623 PMCID: PMC7448123 DOI: 10.1155/2020/8890950] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 07/23/2020] [Indexed: 12/18/2022] Open
Abstract
Two new Ru(II) complexes containing O, O-chelated ligands, Ru(dip)2(SA) (Ru-1) and Ru(dmp)2(SA) (Ru-2) (dip = 4,7-diphenyl-1,10-phenanthroline; dmp = 2,9-dimethyl-1,10-phenanthroline; SA = salicylate) were synthesized to evaluate their cytotoxicity in vitro. These complexes were found to exhibit moderate antitumor activity to different types of human cancers, including A549 (human lung carcinoma), MCF-7 (breast cancer), HeLa (human cervical cancer), and HepG2 (human hepatocellular carcinoma) cell lines, but displayed low toxicity to human normal cell lines BEAS-2B (immortalized human bronchial epithelial cells) when compared with that of cisplatin. Further studies revealed that these complexes could induce apoptosis in A549 cells, including activating caspase family proteins and poly (ADP-ribose) polymerase (PARP), reducing Bcl-2/Bax and Bcl-xl/Bad ratio, enhancing cellular reactive oxygen species (ROS) accumulation, triggering DNA damage, decreasing mitochondrial membrane potential (MMP), and leading cytochrome c release from mitochondria. Notably, complex Ru-1 showed low toxicity to developing zebrafish embryos. The obtained results suggest that these new synthetic complexes have the potential to be developed as low-toxicity agents for lung cancer treatment.
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Qian L, Miao T, Xu L. Probing DNA-Cleavage Efficiencies of Copper(II) Complexes: A Computational Perspective. ACS OMEGA 2020; 5:19029-19033. [PMID: 32775905 PMCID: PMC7408204 DOI: 10.1021/acsomega.0c02331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
Theoretical studies on DNA-cleavage efficiencies of Cu(II) complexes 1-3 were carried out using density functional theory (DFT). The optimized Cu(II) complexes were allowed to bind to glutathiones (GSH) and ascorbic acids (VC) by the docking program so that corresponding docking structures can be obtained. To predict DNA-cleavage efficiencies, the docking structures of Cu(II) complexes with GSH and VC were further optimized by DFT. The activation energies of electrons from GSH to complexes, the redox potentials of these complexes, and binding energies of these complexes with GSH and VC were calculated. The efficiencies of complexes cleaving DNA were predicted and found to be in agreement with the experimental results. Finally, three occupied molecular orbitals of docking structures (GSH-complexes) were analyzed, and the DNA-cleavage abilities of complexes were also explained by the electron distribution on the three occupied orbitals. This work has important implications understanding the DNA-cleavage mechanism of Cu(II) complexes, which might be helpful for designing novel anticancer Cu(II) complexes for the future.
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Affiliation(s)
- Li Qian
- College
of Pharmacy, Youjiang Medical College for
Nationalities, Guangxi, Baise 533000, China
| | - Tifang Miao
- School
of Chemistry and Materials Science, Huaibei
Normal University, Huaibei 235000, China
| | - Liancai Xu
- Department
of Material and Chemical Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
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12
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Abulhasanov B, Yıldız U, Akkoç S, Coban B. Synthesis, characterization, duplex‐DNA interactions, and anticancer activities of novel octahedral [Ni(phen)
2
(dppz‐idzo)]
2+
and [Co(phen)
2
(dppz‐idzo)]
3+
complexes. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Bahrouz Abulhasanov
- Department of Chemistry, Faculty of Arts and Sciences Zonguldak Bulent Ecevit University Zonguldak 67100 Turkey
| | - Ufuk Yıldız
- Department of Chemistry, Faculty of Arts and Sciences Zonguldak Bulent Ecevit University Zonguldak 67100 Turkey
| | - Senem Akkoç
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy Suleyman Demirel University Isparta 32260 Turkey
| | - Burak Coban
- Department of Chemistry, Faculty of Arts and Sciences Zonguldak Bulent Ecevit University Zonguldak 67100 Turkey
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Aramesh-Boroujeni Z, Jahani S, Khorasani-Motlagh M, Kerman K, Noroozifar M. Evaluation of parent and nano-encapsulated terbium(III) complex toward its photoluminescence properties, FS-DNA, BSA binding affinity, and biological applications. J Trace Elem Med Biol 2020; 61:126564. [PMID: 32485498 DOI: 10.1016/j.jtemb.2020.126564] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND There is a crucial need for finding and developing new compounds as the anticancer and antimicrobial agents with better activity, specific target, and less toxic side effects. OBJECTIVES Base on the potential anticancer properties of lanthanide complexes, in the paper, the biological applications of terbium (Tb) complex, containing 2,9-dimethyl- 1,10-phenanthroline (Me2Phen) such as anticancer, antimicrobial, DNA cleavage ability, the interaction with FS-DNA (Fish-Salmon DNA) and BSA (Bovine Serum Albumin) was examined. METHODS The interaction of Tb-complex with BSA and DNA was studied by emission spectroscopy, absorption titration, viscosity measurement, CD spectroscopy, competitive experiments, and docking calculation. Also, the ability of this complex to cleave DNA was reported by gel electrophoresis. Tb-complex was concurrently screened for its antibacterial activities by different methods. Besides, the nanocarriers of Tb-complex (lipid nanoencapsulation (LNEP) and the starch nanoencapsulation (SNEP)), as active anticancer candidates, were prepared. MTT technique was applied to measure the antitumor properties of these compounds on human cancer cell lines. RESULTS The experimental and docking results suggest significant binding between DNA as well as BSA with terbium-complex. Besides, groove binding plays the main role in the binding of this compound with DNA and BSA. The competitive experiment with hemin demonstrated that the terbium complex was bound at site III of BSA, which was confirmed by the docking study. Also, Tb-complex was concurrently screened for its DNA cleavage, antimicrobial, and anticancer activities. The anticancer properties of LNEP and SNEP are more than the terbium compound. CONCLUSIONS Tb-complex can bond to DNA/BSA with high binding affinity. Base on biological applications of Tb-complex, it can be concluded that this complex and its nanocarriers can suggest as novel anticancer, antimicrobial candidates.
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Affiliation(s)
- Zahra Aramesh-Boroujeni
- Isfahan University of Medical Sciences, Isfahan, Iran; Department of Chemistry, University of Sistan and Baluchestan, Zahedan, 98135-674, Iran.
| | - Shohreh Jahani
- Nano Bioeletrochemistry Research Center, Bam University of Medical Sciences, Bam, Iran
| | | | - Kagan Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - Meissam Noroozifar
- Department of Physical and Environmental Sciences, University of Toronto Scarborough 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada.
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14
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Aramesh-Boroujeni Z, Jahani S, Khorasani-Motlagh M, Kerman K, Noroozifar M. Parent and nano-encapsulated ytterbium(iii) complex toward binding with biological macromolecules, in vitro cytotoxicity, cleavage and antimicrobial activity studies. RSC Adv 2020; 10:23002-23015. [PMID: 35520322 PMCID: PMC9054636 DOI: 10.1039/d0ra03895d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/04/2020] [Indexed: 01/14/2023] Open
Abstract
To determine the chemotherapeutic and pharmacokinetic aspects of an ytterbium complex containing 2,9-dimethyl-1,10-phenanthroline (Me2Phen), in vitro binding studies were carried out with FS-DNA/BSA by employing multiple biophysical methods and a molecular modeling study. There are different techniques including absorption spectroscopy, fluorescence spectroscopy, circular dichroism studies, viscosity experiments (only in the case of DNA), and competitive experiments used to determine the interaction mode between DNA/BSA and the ytterbium-complex. The results showed that the Yb-complex exhibited a high propensity for the interaction of BSA and DNA via hydrophobic interactions and van der Waals forces. Further, a competitive examination and docking study showed that the interaction site of the ytterbium complex on BSA is site III. The results of docking calculations for DNA/BSA were in good agreement with experimental findings. The complex displays efficient DNA cleavage in the presence of hydrogen peroxide. Moreover, antimicrobial studies of different bacteria and fungi indicated its promising antibacterial activity. In vitro cytotoxicity studies of the Yb-complex, starch nano-encapsulated, and lipid nano-encapsulated were carried out in MCF-7 and A-549 cell lines, which revealed significantly good activity. The results of anticancer activity studies showed that the cytotoxic activity of the Yb-complex was increased when encapsulated with nanocarriers. Based on biological applications of the Yb-complex, it can be concluded that this complex and its nanocarriers can act as novel anticancer and antimicrobial candidates. The biological applications of Yb-complexes including anticancer, antimicrobial and DNA cleavage ability, and their interaction with FS-DNA and BSA were examined.![]()
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Affiliation(s)
- Zahra Aramesh-Boroujeni
- Department of Clinical Laboratory
- AlZahra Hospital
- Isfahan University of Medical Sciences
- Iran
- Young Researchers and Elite Club, Najafabad Branch
| | - Shohreh Jahani
- Nano Bioeletrochemistry Research Center
- Bam University of Medical Sciences
- Bam
- Iran
| | | | - Kagan Kerman
- Department of Physical and Environmental Sciences
- University of Toronto Scarborough
- Toronto
- Canada
| | - Meissam Noroozifar
- Department of Physical and Environmental Sciences
- University of Toronto Scarborough
- Toronto
- Canada
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15
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Asadpour S, Aramesh-Boroujeni Z, Jahani S. In vitro anticancer activity of parent and nano-encapsulated samarium(iii) complex towards antimicrobial activity studies and FS-DNA/BSA binding affinity. RSC Adv 2020; 10:31979-31990. [PMID: 35518188 PMCID: PMC9056537 DOI: 10.1039/d0ra05280a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/11/2020] [Indexed: 11/21/2022] Open
Abstract
Based on the potential anticancer properties of lanthanide complexes, the anticancer activity of the Sm(iii) complex containing a 2,2′-bipyridine ligand (bpy) and its interaction with FS-DNA (Fish-Salmon DNA) and BSA (Bovine Serum Albumin) were examined experimentally and by molecular docking in this paper. Absorption and fluorescence spectroscopic methods were used to define the thermodynamic parameters, binding constant (Kb), and the probable binding mechanism. It was concluded that the Sm complex interacts with FS-DNA through a minor groove with a Kb of 105 M−1. Also, the Kb for the BSA binding at 298 K was found to be 5.89 × 105 M−1, showing relatively a high tendency of the Sm complex to DNA and BSA. Besides, the Sm complex was docked to BSA and DNA by the autodock program. The results of the docking calculations were in good agreement with the experimental examinations. Additionally, the antifungal and antibacterial properties of this complex were investigated. The anticancer tests on the effect of the Sm complex, starch nano-encapsulation, and lipid nano-encapsulation in MCF-7 and A-549 cell lines were performed by the MTT method. It can be observed that the Sm complex and its nanocarriers presented a selective inhibitory effect on various cancer cell growths. The biological properties of the Sm-complex, such as its interaction with FS-DNA and BSA, anticancer, and antimicrobial activities were studied.![]()
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Affiliation(s)
- Saeid Asadpour
- Department of Chemistry
- Faculty of Sciences
- Shahrekord University
- Shahrekord 115
- Iran
| | - Zahra Aramesh-Boroujeni
- Department of Clinical Laboratory
- AlZahra Hospital
- Isfahan University of Medical Sciences
- Iran
- Young Researchers and Elite Club
| | - Shohreh Jahani
- Noncommunicable Diseases Research Center
- Bam University of Medical Sciences
- Bam
- Iran
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16
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Aramesh-Boroujeni Z, Jahani S, Khorasani-Motlagh M, Kerman K, Aramesh N, Asadpour S, Noroozifar M. Experimental and theoretical investigations of Dy(III) complex with 2,2'-bipyridine ligand: DNA and BSA interactions and antimicrobial activity study. J Biomol Struct Dyn 2019; 38:4746-4763. [PMID: 31684852 DOI: 10.1080/07391102.2019.1689170] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In this study, the interactions of a novel metal complex [Dy(bpy)2Cl3.OH2] (bpy is 2,2'-bipyridine) with fish salmon DNA (FS-DNA) and bovine serum albumin (BSA) were investigated by experimental and theoretical methods. All results suggested significant binding between the Dy(III) complex with FS-DNA and BSA. The binding constants (Kb), Stern-Volmer quenching constants (KSV) of Dy(III)-complex with FS-DNA and BSA at various temperatures as well as thermodynamic parameters using Van't Hoff equation were obtained. The experimental results from absorption, ionic strength, iodide ion quenching, ethidium bromide (EtBr) quenching studies and positive ΔH˚ and ΔS˚ suggested that hydrophobic groove-binding mode played a predominant role in the binding of Dy(III)-complex with FS-DNA. Indeed, the molecular docking results for DNA-binding were in agreement with experimental data. Besides, the results found from experimental and molecular modeling indicated that the Dy(III)-complex bound to BSA via Van der Waals interactions. Moreover, the results of competitive tests by phenylbutazone, ibuprofen, and hemin (as a site-I, site-II and site-III markers, respectively) considered that the site-III of BSA is the most possible binding site for Dy(III)-complex. In addition, Dy(III) complex was concurrently screened for its antimicrobial activities. The presented data provide a promising platform for the development of novel metal complexes that target nucleic acids and proteins with antimicrobial activity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zahra Aramesh-Boroujeni
- Department of Clinical Laboratory, AlZahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran
| | - Shohreh Jahani
- Nano Bioeletrochemistry Research Center, Bam University of Medical Sciences, Bam, Iran
| | | | - Kagan Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Nahal Aramesh
- Department of Chemistry, Faculty of Sciences, Yasouj University, Yasouj, Iran
| | - Saeid Asadpour
- Department of Chemistry, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
| | - Meissam Noroozifar
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
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17
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Conti L, Bencini A, Ferrante C, Gellini C, Paoli P, Parri M, Pietraperzia G, Valtancoli B, Giorgi C. Highly Charged Ruthenium(II) Polypyridyl Complexes as Effective Photosensitizer in Photodynamic Therapy. Chemistry 2019; 25:10606-10615. [PMID: 31107567 DOI: 10.1002/chem.201901570] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Indexed: 11/12/2022]
Abstract
A comparative study between two novel, highly water soluble, ruthenium(II) polypyridyl complexes, [Ru(phen)2 L'] and [Ru(phen)2 Cu(II)L'] (L and L-CuII ), containing the polyaazamacrocyclic unit 4,4'-(2,5,8,11,14-pentaaza[15])-2,2'-bipyridilophane (L'), is herein reported. L and L-CuII interact with calf-thymus DNA and efficiently cleave DNA plasmid when light-activated. They also possess great penetration abilities and photo-induced biological activities, evaluated on an A375 human melanoma cell line, with L-CuII being the most effective. Our study highlights the key role of the Fenton active CuII center within the macrocycle framework, that would play a synergistic role with light activation in the formation of cytotoxic ROS species. Based on these results, an optimal design of RuII polypyridyl systems featuring specific CuII -chelating polyamine units could represent a suitable strategy for the development of novel and effective photosensitizers in photodynamic therapy.
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Affiliation(s)
- Luca Conti
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
| | - Andrea Bencini
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
| | - Camilla Ferrante
- Department of Chemical Sciences and UR INSTM, University of Padova, via Marzolo 1, 35131, Padova (PD), Italy
| | - Cristina Gellini
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
| | - Paolo Paoli
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, Firenze (FI), Italy
| | - Matteo Parri
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, Firenze (FI), Italy
| | - Giangaetano Pietraperzia
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy.,European Laboratory for Non Linear Spectroscopy (LENS), University of Florence, via Nello Carrara 1, 50019, Sesto Fiorentino (FI), Italy
| | - Barbara Valtancoli
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
| | - Claudia Giorgi
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
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18
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Guan S, Pan T, Zhang Y, Zeng Z, Mu L, Zhu D, Chang B, Zheng K, Qian J, Xie Q, Mei W, Tang W, Bai M. Synthesis, DNA-binding, and antitumor activity of polypyridyl-ruthenium(II) complexes [Ru(L)2(DClPIP)] (L = bpy, phen; DClPIP = 2-(2,4-dichlorophenyl)-1H-imidazo[4,5-f][1, 10]phenanthroline). J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1630614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shouhai Guan
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tao Pan
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yanyang Zhang
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaolin Zeng
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Luwen Mu
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Duo Zhu
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Boyang Chang
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kangdi Zheng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiesheng Qian
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiang Xie
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenjie Mei
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Wenjie Tang
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingjun Bai
- Department of Vascular Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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19
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He M, Du F, Zhang WY, Yi QY, Wang YJ, Yin H, Bai L, Gu YY, Liu YJ. Photoinduced anticancer effect evaluation of ruthenium(II) polypyridyl complexes toward human lung cancer A549 cells. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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20
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Aramesh-Boroujeni Z, Jahani S, Khorasani-Motlagh M, Kerman K, Noroozifar M. Evaluation of DNA, BSA binding, DNA cleavage and antimicrobial activity of ytterbium(III) complex containing 2,2'-bipyridine ligand. J Biomol Struct Dyn 2019; 38:1711-1725. [DOI: 10.1080/07391102.2019.1617788] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zahra Aramesh-Boroujeni
- Department of Clinical Laboratory, AlZahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Chemistry, University of Isfahan, Isfahan, Iran
| | - Shohreh Jahani
- Nano Bioeletrochemistry Research Center, Bam University of Medical Sciences, Bam, Iran
| | | | - Kagan Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Meissam Noroozifar
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
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21
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Moradinia E, Mansournia M, Aramesh‐Boroujeni Z, Bordbar A. New transition metal complexes of 9,10‐phenanthrenequinone p‐toluyl hydrazone Schiff base: Synthesis, spectroscopy, DNA and HSA interactions, antimicrobial, DFT and docking studies. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4893] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Elham Moradinia
- Department of Inorganic Chemistry, Faculty of ChemistryUniversity of Kashan Kashan P.O. Box 87317‐53153 IR Iran
| | - Mohammadreza Mansournia
- Department of Inorganic Chemistry, Faculty of ChemistryUniversity of Kashan Kashan P.O. Box 87317‐53153 IR Iran
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22
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Shum J, Leung PKK, Lo KKW. Luminescent Ruthenium(II) Polypyridine Complexes for a Wide Variety of Biomolecular and Cellular Applications. Inorg Chem 2019; 58:2231-2247. [DOI: 10.1021/acs.inorgchem.8b02979] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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23
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Djukić M, Jeremić MS, Jelić R, Klisurić O, Kojić V, Jakimov D, Djurdjević P, Matović ZD. Further insights into ruthenium(II) piano-stool complexes with N-alkyl imidazoles. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.08.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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24
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Miao T, Deng Q, Gao H, Fu X, Li S. Theoretical Studies on DNA-Cleavage Mechanism of Copper(II) Complexes: Probing Generation of Reactive Oxygen Species. J Chem Inf Model 2018. [DOI: 10.1021/acs.jcim.8b00055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Tifang Miao
- School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, P. R. China
- Anhui Key Laboratory of Energetic Materials, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Qinghua Deng
- School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Hui Gao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Xianliang Fu
- School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Shuang Li
- School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, P. R. China
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25
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Comparative studies on DNA-binding and in vitro antitumor activity of enantiomeric ruthenium(II) complexes. J Inorg Biochem 2018; 180:54-60. [DOI: 10.1016/j.jinorgbio.2017.11.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/31/2017] [Accepted: 11/26/2017] [Indexed: 02/07/2023]
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26
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Hadian Rasanani S, Eslami Moghadam M, Soleimani E, Divsalar A, Ajloo D, Tarlani A, Amiri M. Anticancer activity of new imidazole derivative of 1R,2R-diaminocyclohexane palladium and platinum complexes as DNA fluorescent probes. J Biomol Struct Dyn 2017; 36:3058-3076. [DOI: 10.1080/07391102.2017.1385538] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sara Hadian Rasanani
- Inorganic Chemistry Research Laboratory, Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | | | - Esmaiel Soleimani
- Inorganic Chemistry Research Laboratory, Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | - Adeleh Divsalar
- Faculty of Biological Sciences, Department of Cell & Molecular Biology, Kharazmi University, Tehran, Iran
| | - Davood Ajloo
- School of Chemistry, Damghan University, Damghan, Iran
| | - Aliakbar Tarlani
- Chemistry & Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Majid Amiri
- School of Chemistry, Damghan University, Damghan, Iran
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27
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Ghosh B, Adak P, Naskar S, Pakhira B, Mitra P, Chattopadhyay SK. Ruthenium(II/III) complexes of redox non-innocent bis(thiosemicarbazone) ligands: Synthesis, X-ray crystal structures, electrochemical, DNA binding and DFT studies. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.04.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Smithen DA, Yin H, Beh MHR, Hetu M, Cameron TS, McFarland SA, Thompson A. Synthesis and Photobiological Activity of Ru(II) Dyads Derived from Pyrrole-2-carboxylate Thionoesters. Inorg Chem 2017; 56:4121-4132. [PMID: 28301148 DOI: 10.1021/acs.inorgchem.7b00072] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis and characterization of a series of heteroleptic ruthenium(II) dyads derived from pyrrole-2-carboxylate thionoesters are reported. Ligands bearing a conjugated thiocarbonyl group were found to be more reactive toward Ru(II) complexation compared to analogous all-oxygen pyrrole-2-carboxylate esters, and salient features of the resulting complexes were determined using X-ray crystallography, electronic absorption, and NMR spectroscopy. Selected complexes were evaluated for their potential in photobiological applications, whereupon all compounds demonstrated in vitro photodynamic therapy effects in HL-60 and SK-MEL-28 cells, with low nanomolar activities observed, and exhibited some of the largest photocytotoxicity indices to date (>2000). Importantly, the Ru(II) dyads could be activated by relatively soft doses of visible (100 J cm-2, 29 mW cm-2) or red light (100 J cm-2, 34 mW cm-2), which is compatible with therapeutic applications. Some compounds even demonstrated up to five-fold selectivity for malignant cells over noncancerous cells. These complexes were also shown to photocleave, and in some cases unwind, DNA in cell-free experiments. Thus, this new class of Ru(II) dyads has the capacity to interact with and damage biological macromolecules in the cell, making them attractive agents for photodynamic therapy.
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Affiliation(s)
- Deborah A Smithen
- Department of Chemistry, Dalhousie University , P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Huimin Yin
- Department of Chemistry, Acadia University , 6 University Avenue, Wolfville, Nova Scotia B4P 2R6, Canada
| | - Michael H R Beh
- Department of Chemistry, Dalhousie University , P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Marc Hetu
- Department of Chemistry, Acadia University , 6 University Avenue, Wolfville, Nova Scotia B4P 2R6, Canada
| | - T Stanley Cameron
- Department of Chemistry, Dalhousie University , P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Sherri A McFarland
- Department of Chemistry, Acadia University , 6 University Avenue, Wolfville, Nova Scotia B4P 2R6, Canada.,Department of Chemistry and Biochemistry, University of North Carolina at Greensboro , 301 McIver Street, Greensboro, North Carolina 27402, United States
| | - Alison Thompson
- Department of Chemistry, Dalhousie University , P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
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29
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Moradi Z, Khorasani-Motlagh M, Rezvani AR, Noroozifar M. Evaluation of DNA, BSA binding, and antimicrobial activity of new synthesized neodymium complex containing 29-dimethyl 110-phenanthroline. J Biomol Struct Dyn 2017; 36:779-794. [DOI: 10.1080/07391102.2017.1288170] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Zohreh Moradi
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, P.O. Box 98155-147, Iran
| | | | - Ali Reza Rezvani
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, P.O. Box 98155-147, Iran
| | - Meissam Noroozifar
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, P.O. Box 98155-147, Iran
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30
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van Rixel VHS, Siewert B, Hopkins SL, Askes SHC, Busemann A, Siegler MA, Bonnet S. Green light-induced apoptosis in cancer cells by a tetrapyridyl ruthenium prodrug offering two trans coordination sites. Chem Sci 2016; 7:4922-4929. [PMID: 30155140 PMCID: PMC6018302 DOI: 10.1039/c6sc00167j] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/17/2016] [Indexed: 12/23/2022] Open
Abstract
In this work, two new photopharmacological ruthenium prodrugs are described that can be activated by green light. Cell death occurs via apoptosis; it is not a consequence of singlet oxygen generation, but of light-induced photosubstitution reactions.
In this work, two new photopharmacological ruthenium prodrugs are described that can be activated by green light. They are based on the tetrapyridyl biqbpy ligand (6,6′-bis[N-(isoquinolyl)-1-amino]-2,2′-bipyridine), which coordinates to the basal plane of the metal centre and leaves two trans coordination sites for the binding of monodentate sulphur ligands. Due to the distortion of the coordination sphere these trans ligands are photosubstituted by water upon green light irradiation. In vitro cytotoxicity data on A431 and A549 cancer cell lines shows an up to 22-fold increase in cytotoxicity after green light irradiation (520 nm, 75 J cm–2), compared to the dark control. Optical microscopy cell imaging and flow cytometry indicate that the cancer cells die via apoptosis. Meanwhile, very low singlet oxygen quantum yields (∼1–2%) and cell-free DNA binding studies conclude that light-induced cell death is not caused by a photodynamic effect, but instead by the changes induced in the coordination sphere of the metal by light, which modifies how the metal complexes bind to biomolecules.
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Affiliation(s)
- V H S van Rixel
- Leiden Institute of Chemistry , Universiteit Leiden , Einsteinweg 55 2333 CC , Leiden , Netherlands .
| | - B Siewert
- Leiden Institute of Chemistry , Universiteit Leiden , Einsteinweg 55 2333 CC , Leiden , Netherlands .
| | - S L Hopkins
- Leiden Institute of Chemistry , Universiteit Leiden , Einsteinweg 55 2333 CC , Leiden , Netherlands .
| | - S H C Askes
- Leiden Institute of Chemistry , Universiteit Leiden , Einsteinweg 55 2333 CC , Leiden , Netherlands .
| | - A Busemann
- Leiden Institute of Chemistry , Universiteit Leiden , Einsteinweg 55 2333 CC , Leiden , Netherlands .
| | - M A Siegler
- Small Molecule X-ray Crystallography Facility , Johns Hopkins University , 3400N. Charles St , Baltimore , MD 21218 , USA
| | - Sylvestre Bonnet
- Leiden Institute of Chemistry , Universiteit Leiden , Einsteinweg 55 2333 CC , Leiden , Netherlands .
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31
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Sun Y, Li J, Zhao H, Tan L. Ruthenium(II) polypyridyl complexes with 1,8-naphthalimide group as DNA binder, photonuclease, and dual inhibitors of topoisomerases I and IIα. J Inorg Biochem 2016; 163:88-94. [PMID: 27470011 DOI: 10.1016/j.jinorgbio.2016.04.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 04/12/2016] [Accepted: 04/18/2016] [Indexed: 10/21/2022]
Abstract
Two ruthenium(II) polypyridyl complexes containing 1,8-naphthalimide group as DNA binders, photonucleases, and inhibitors of topoisomerases I and IIα are evaluated. The binding properties of [Ru(phen)2(pnip)]2+ {1; phen=1,10-phenanthroline; pnip=12-[N-(p-phenyl)-1,8-napthalimide]- imidazo[4',5'-f] [1,10]phenanthroline} and [Ru(bpy)2(pnip)]2+ (2; bpy=2,2'-bipyridine) with calf thymus DNA increases with increasing the bulkiness and hydrophobic character of ancillary ligands, although the two complexes possess high affinities for DNA via intercalation. Moreover, photoirradiation (λ=365nm) of the two complexes are found to induce strand cleavage of closed circular pBR322 plasmid DNA via singlet oxygen mechanism, while complex 1 displays more effective photocleavage activity than complex 2 under the same conditions. Topoisomerase inhibition and DNA strand passage assay reflect that complexes 1 and 2 are efficient dual poisons of topoisomerases I and IIα.
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Affiliation(s)
- Yanmei Sun
- College of Chemistry, Xiangtan University, Xiangtan, PR China
| | - Jia Li
- College of Chemistry, Xiangtan University, Xiangtan, PR China
| | - Hong Zhao
- College of Chemistry, Xiangtan University, Xiangtan, PR China
| | - Lifeng Tan
- Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan, PR China.
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32
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Huang LL, Xu J, Jin YJ, Zhao DX, Xie HY. Ru(ii) polypyridyl complex-incorporated and folate-conjugated vehicle for cancer cell imaging and photoinduced inactivation. Analyst 2016; 141:2948-54. [DOI: 10.1039/c5an02650d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A vehicle of photodynamic reagent [Ru(phen)2(dppz)]2+, which was incorporated into folate-conjugated liposomes, was constructed for the purpose of tumor-specific imaging and photodynamic therapy.
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Affiliation(s)
- Li-Li Huang
- School of Life Science Beijing Institute of Technology
- Beijing
- China
| | - Jin Xu
- School of Life Science Beijing Institute of Technology
- Beijing
- China
| | - Yong-Jie Jin
- School of Life Science Beijing Institute of Technology
- Beijing
- China
| | - Dong-Xu Zhao
- School of Life Science Beijing Institute of Technology
- Beijing
- China
| | - Hai-Yan Xie
- School of Life Science Beijing Institute of Technology
- Beijing
- China
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33
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Zhang P, Huang H, Huang J, Chen H, Wang J, Qiu K, Zhao D, Ji L, Chao H. Noncovalent Ruthenium(II) Complexes-Single-Walled Carbon Nanotube Composites for Bimodal Photothermal and Photodynamic Therapy with Near-Infrared Irradiation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23278-23290. [PMID: 26430876 DOI: 10.1021/acsami.5b07510] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To enhance the efficacy and optimize the treatment of cancers, the integration of multimodal treatment strategies leading to synergistic effects is a promising approach. The coassembly of multifunctional agents for systematic therapies has received considerable interest in cancer treatment. Herein, Ru(II) complex-functionalized single-walled carbon nanotubes (Ru@SWCNTs) are developed as nanotemplates for bimodal photothermal and two-photon photodynamic therapy (PTT-TPPDT). SWCNTs have the ability to load a great amount of Ru(II) complexes (Ru1 or Ru2) via noncovalent π-π interactions. The loaded Ru(II) complexes are efficiently released by the photothermal effect of irradiation from an 808 nm diode laser (0.25 W/cm(2)). The released Ru(II) complexes produce singlet oxygen species ((1)O2) upon two-photon laser irradiation (808 nm, 0.25 W/cm(2)) and can be used as a two-photon photodynamic therapy (TPPDT) agent. Based on the combination of photothermal therapy and two-photon photodynamic therapy, Ru@SWCNTs have greater anticancer efficacies than either PDT using Ru(II) complexes or PTT using SWCNTs in two-dimensional (2D) cancer cell and three-dimensional (3D) multicellular tumor spheroid (MCTS) models. Furthermore, in vivo tumor ablation is achieved with excellent treatment efficacy under a diode laser (808 nm) irradiation at the power density of 0.25 W/cm(2) for 5 min. This study examines an efficacious bimodal PTT and TPPDT nanoplat form for the development of cancer therapeutics.
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Affiliation(s)
- Pingyu Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Huaiyi Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Juanjuan Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Hongmin Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Jinquan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Kangqiang Qiu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Donglei Zhao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, People's Republic of China
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34
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Huang H, Zhang P, Yu B, Jin C, Ji L, Chao H. Synthesis, characterization and biological evaluation of mixed-ligand ruthenium(II) complexes for photodynamic therapy. Dalton Trans 2015; 44:17335-45. [PMID: 26387554 DOI: 10.1039/c5dt02081f] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study investigated the photodynamic therapy (PDT) and anticancer activity of mixed ligand Ru(ii) terpyridyl complexes (Ru1-Ru3). The photophysical and photochemical properties, hydrophobic properties, DNA binding and DNA transcription inhibition abilities, cell uptake efficiency, cellular localization and photo-cytotoxicity were investigated. Ru1-Ru3 exhibited red luminescence between 670-710 nm and functioned as photo-sensitizers (PSs) by generating both singlet oxygen and radical ions. Without light activation, Ru1-Ru3 were located at the cytoplasm and were nontoxic to cells. However, upon light activation, Ru1-Ru3 exhibited significant photocytotoxicity. After PDT treatment, mitochondria alteration and nuclear membrane disruption occurred, which resulted in relocalization of the complexes from the cytoplasm to the nucleus. Moreover, high cellular oxidative stress caused cell necrocytosis after PDT treatment.
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Affiliation(s)
- Huaiyi Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China.
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35
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Unexpected high photothemal conversion efficiency of gold nanospheres upon grafting with two-photon luminescent ruthenium(II) complexes: A way towards cancer therapy? Biomaterials 2015; 63:102-14. [PMID: 26093791 DOI: 10.1016/j.biomaterials.2015.06.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 06/08/2015] [Accepted: 06/11/2015] [Indexed: 12/17/2022]
Abstract
The design and development of functional hybrid nanomaterials is currently a topic of great interest in biomedicine. Herein we investigated the grafting of Ru(II) polypyridyl complexes onto gold nanospheres (Ru@AuNPs) to improve the particles' near infrared (NIR) absorption, and ultimately allow for application in photothermal cancer therapy. As demonstrated in this article, these ruthenium(II) complexes could indeed significantly enhance gold nanospheres' two-photon luminescence (PTL) intensity and photothermal therapy (PTT) efficiency. The best dual functional nanoparticles of this study were successfully used for real-time luminescent imaging-guided PTT in live cancer cells. Furthermore, in vivo tumor ablation was achieved with excellent treatment efficacy under a diode laser (808 nm) irradiation at the power density of 0.8 W/cm(2) for 5 min. This study demonstrates that the coupling of inert Ru(II) polypyridyl complexes to gold nanospheres allows for the enhancement of two-photon luminescence and for efficient photothermal effect.
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36
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The fluorescence properties and binding mechanism of SYTOX green, a bright, low photo-damage DNA intercalating agent. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2015; 44:337-48. [PMID: 26024786 DOI: 10.1007/s00249-015-1027-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 04/05/2015] [Accepted: 04/08/2015] [Indexed: 10/23/2022]
Abstract
DNA intercalators are widely used in cancer therapeutics, to probe protein-DNA interactions and to investigate the statistical-mechanical properties of DNA. Here, we employ single-molecule fluorescence microscopy, magnetic tweezers, and ensemble-binding assays to investigate the fluorescence properties and binding mechanism of SYTOX green, a DNA labeling dye previously used for staining dead cells and becoming of common use for single-molecule methodologies. Specifically, we show that SYTOX green presents several advantages with respect to other dyes: (1) binds DNA rapidly and with high affinity; (2) has a good signal-to-noise ratio even at low concentrations; (3) exhibits a low photobleaching rate; and (4) induces lower light-induced DNA degradation. Finally, we show that SYTOX green is a DNA intercalator that binds DNA cooperatively with a binding site of 3.5 bp, increasing the DNA length upon binding by 43%, while not affecting its mechanical properties.
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37
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Hall JP, Beer H, Buchner K, Cardin DJ, Cardin CJ. The Structural Effect of Methyl Substitution on the Binding of Polypyridyl Ru–dppz Complexes to DNA. Organometallics 2015. [DOI: 10.1021/om501208x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- James P. Hall
- Department
of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, U.K
- Diamond Light Source, Harwell Science and Innovation
Campus, Fermi Avenue, Didcot, Oxfordshire OX11 0QX, U.K
| | - Hanna Beer
- Department
of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, U.K
| | - Katrin Buchner
- Department
of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, U.K
| | - David J. Cardin
- Department
of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, U.K
| | - Christine J. Cardin
- Department
of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, U.K
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38
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Khorasani-Motlagh M, Noroozifar M, Akbari A, Mirkazehi-Rigi S. Experimental and theoretical studies on the DNA-binding of cationic yttrium(III) complex containing 2,2′-bipyridine. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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39
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Liu X, Li Z, Hu X, Zhang S, Lu J. DNA interaction and photocleavage properties of Ru (II) complexes [Ru(bpy)₂(pibi)]²⁺ and [Ru(phen)₂(pibi)]²⁺. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 33:519-35. [PMID: 25009987 DOI: 10.1080/15257770.2014.900183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A new asymmetry ligand pibi (pibi = 2-(pyridine-2-yl)-1-H-imidazo[4,5-f]benzo[d]imidazolone) and its ruthenium complexes with [Ru(L)2(pibi)](2+) (L = bpy (2, 2'-bipyridine), phen (1, 10-phenanthroline)), have been synthesized and characterized. The binding of two complexes with calf thymus DNA has been investigated by spectroscopic and viscosity measurement. The results indicate that both complexes can bind to CT-DNA through intercalative mode. Under irradiation at 365 nm, both complexes can partly promote the photocleavage of plasmid pBR322DNA. The low singlet oxygen generation abilities of the two complexes may be the factor for the low DNA photocleavage abilities.
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Affiliation(s)
- XueWen Liu
- a College of Chemistry and Chemical Engineering , Hunan University of Arts and Science , ChangDe , P.R. China
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40
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Zhang W, Lu X, Wang G, Cheng Y, Zhang B. Methyl-substituted enhancement of antitumor activity in square-planar metal complex and analysis of ΔE, ΔG, CV, UV-vis and luminescence. NEW J CHEM 2015. [DOI: 10.1039/c4nj01953a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In anticancer experiments, complex 2 exhibits the highest inhibitions from the data of IC50. We ascertain the structure by using X-ray diffraction and analysis of UV-vis, luminescence, cyclic voltammetry, ΔE and ΔG.
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Affiliation(s)
- WeiChuan Zhang
- Department of Chemistry
- Capital Normal University
- Beijing
- China
| | - Xiaoming Lu
- Department of Chemistry
- Capital Normal University
- Beijing
- China
- State Key Laboratory of Structural Chemistry
| | - Guo Wang
- Department of Chemistry
- Capital Normal University
- Beijing
- China
- State Key Laboratory of Structural Chemistry
| | - Yifeng Cheng
- Department of Chemistry
- Capital Normal University
- Beijing
- China
| | - Bo Zhang
- Department of Chemistry
- Capital Normal University
- Beijing
- China
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41
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Yu HJ, Zhao Y, Mo WJ, Hao ZF, Yu L. Ru-indoloquinoline complex as a selective and effective human telomeric G-quadruplex binder. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 132:84-90. [PMID: 24858349 DOI: 10.1016/j.saa.2014.04.160] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 04/26/2014] [Accepted: 04/28/2014] [Indexed: 06/03/2023]
Abstract
Indoloquinoline and its derivatives have been reported to be a kind of efficient G-quadruplex binder and have been found to interact preferentially to intramolecular G-quadruplex and inhibit telomerase activity in human K562 cells and SW620 cells. In contrast to indoloquinoline derivatives, much less is known about the metal complex based on indoloquinoline or its derivative. In this report, we studied the interaction of ruthenium complex [Ru(bpy)2(itatp)]2+ containing indoloquinoline moiety with human telomeric G-quadruplex DNA (Telo22) and c-myc G-quadruplex DNA (Pu27) by UV-visible (UV-Vis), fluorescence spectroscopy, fluorescent intercalator displacement (FID), thermal denaturation studies and CD spectroscopy. The results suggest that [Ru(bpy)2(itatp)]2+ displays a strong π-π stacking interaction with human telomeric G-quadruplex with a high binding constant (∼10(7) M(-1)), but just exhibits moderate binding affinity to c-myc G-quadruplex, thus showing significant selectivity to human telomeric G-quadruplex. The CD titration results indicate that [Ru(bpy)2(itatp)]2+ could effectively convert Telo22 into antiparallel G-quadruplex conformation, while in the c-myc G-quadruplex case, instead of promoting Pu27 to fold into G-quadruplex, [Ru(bpy)2(itatp)]2+ destroys the parallel G-quadruplex structure of Pu27.
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Affiliation(s)
- Hui-juan Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China.
| | - Ying Zhao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Wei-jie Mo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Zhi-feng Hao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Lin Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China.
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42
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Zhao XL, Li ZS, Zhang AG, Liu P, Song XM, Wang KZ. pH and DNA luminescence switching, DNA photocleavage and cytotoxic properties of two thiophene-containing ruthenium(II) complexes. Eur J Med Chem 2014; 87:10-22. [DOI: 10.1016/j.ejmech.2014.09.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 08/03/2014] [Accepted: 09/11/2014] [Indexed: 10/24/2022]
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43
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Zhang B, Lu X, Wang G, Zhang W, Xia S, Chen Y. Using methyl as substituted-radical in n-phen enhances the anticancer activities of [(DMF)Cu(n-phen)(NO3−)2]. J Inorg Biochem 2014; 140:213-8. [DOI: 10.1016/j.jinorgbio.2014.07.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/28/2014] [Accepted: 07/30/2014] [Indexed: 11/24/2022]
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44
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Mari C, Pierroz V, Rubbiani R, Patra M, Hess J, Spingler B, Oehninger L, Schur J, Ott I, Salassa L, Ferrari S, Gasser G. DNA Intercalating RuIIPolypyridyl Complexes as Effective Photosensitizers in Photodynamic Therapy. Chemistry 2014; 20:14421-36. [DOI: 10.1002/chem.201402796] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 07/10/2014] [Indexed: 12/22/2022]
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45
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Yu HJ, Yu L, Hao ZF, Zhao Y. Interactions of ruthenium complexes containing indoloquinoline moiety with human telomeric G-quadruplex DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:187-193. [PMID: 24486786 DOI: 10.1016/j.saa.2013.12.096] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 12/26/2013] [Accepted: 12/27/2013] [Indexed: 06/03/2023]
Abstract
G-quadruplex structures are attractive targets for the development of anticancer drugs, as their formation in human telomere could impair telomerase activity, thus inducing apoptosis in cancer cells. Vast majority of G-quadruplex binding molecules have been designed and synthesized. Ruthenium complexes have also been reported to induction or stabilization of G-quadruplex structure of human telomeric sequence, whereas most of them generally promote the formation of antiparallel or hybrid-type G-quadruplex structure. Ruthenium complex that selectively promotes the formation of parallel G-quadruplex structure has rarely been reported. We reported here the interaction of two ruthenium complexes [Ru(bpy)2(mitatp)](2+)1 and [Ru(phen)2(mitatp)](2+)2 (bpy=2,2' bipyridine, phen=1,10-phenanthroline, mitatp=5-methoxy-isatino[1,2-b]-1,4,8,9-tetraazatriphenylene) containing indoloquinoline moiety with human telomeric G-quadruplex DNA (Telo22). Complex 1 binds to Telo22 tightly via a stable π-π stacking interaction and efficiently stabilizes the G-quadruplex structure. Circular dichroism (CD) spectra titration results suggest that complex 1 could induce Telo22 to fold into antiparallel G-quadruplex conformation. Complex 2 exhibits moderate G-quadruplex binding and stabilizing ability, while CD titration data reveals that complex 2 could promote the formation of parallel G-quadruplex structure.
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Affiliation(s)
- Hui-juan Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China.
| | - Lin Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China.
| | - Zhi-feng Hao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Ying Zhao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
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46
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Ghosh K, Tyagi N, Kumar P, Singh UP. Synthesis, structure, redox properties and DNA interaction studies on mononuclear iron(III) complexes with amidate ligand. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.11.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Li MJ, Lin Z, Chen X, Chen G. Colorimetric and luminescent bifunctional Ru(ii) complexes for rapid and highly sensitive recognition of cyanide. Dalton Trans 2014; 43:11745-51. [DOI: 10.1039/c4dt00231h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four novel ruthenium(ii) complexes have been characterized for the colorimetric and luminescent bi-functional sensing of cyanide ions. The structure of one complex is also determined by single crystal X-ray diffraction.
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Affiliation(s)
- Mei-Jin Li
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province)
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P. R. China
- State Key Laboratory of Structural Chemistry
| | - Zhihong Lin
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province)
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P. R. China
| | - Xiudan Chen
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province)
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P. R. China
| | - Guonan Chen
- Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province)
- Department of Chemistry
- Fuzhou University
- Fuzhou 350108, P. R. China
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48
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Chen GJ, Wang ZG, Qiao X, Xu JY, Tian JL, Yan SP. Synthesis, DNA binding, photo-induced DNA cleavage, cytotoxicity studies of a family of heavy rare earth complexes. J Inorg Biochem 2013; 127:39-45. [DOI: 10.1016/j.jinorgbio.2013.06.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 06/02/2013] [Accepted: 06/05/2013] [Indexed: 01/22/2023]
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49
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Miao TF, Li S, Chen Q, Wang NL, Zheng KC. Probing DNA photocleavage efficiencies of Ru(II) polypyridyl complexes: Theoretical calculation of redox potentials. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.07.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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50
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Li L, Du K, Wang Y, Jia H, Hou X, Chao H, Ji L. Self-activating nuclease and anticancer activities of copper(II) complexes with aryl-modified 2,6-di(thiazol-2-yl)pyridine. Dalton Trans 2013; 42:11576-88. [PMID: 23843095 DOI: 10.1039/c3dt50395j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three mononuclear copper complexes [Cu(PDTP)Cl2] (PDTP = 4-phenyl-2,6-di(thiazole-2-yl)pyridine, CuPDTP), [Cu(ADTP)Cl2] (ADTP = 4-(anthracen-9-yl)-2,6-di(thiazole-2-yl)pyridine, CuADTP) and [Cu(BFDTP)Cl2] (BFDTP = 4-(benzofuran-2-yl)-2,6-di(thiazole-2-yl)pyridine, CuBFDTP) were synthesized and characterized. The X-ray single crystallography results indicated that the Cu(II) ions showed slightly distorted square pyramid coordination environments, and the ligands deviated from ideal planarity in all three compounds. Based on the DNA binding studies, it was demonstrated that these three complexes exhibited weak DNA binding strengths, which were most likely groove binding modes. CuPDTP, CuADTP and CuBFDTP induced efficient DNA cleavage in the dark without the addition of external catalysts (oxidant or reductant). In contrast, in the presence of reducing or oxidizing agents, the nuclease activities increased more than 10-fold. Mechanistic investigations revealed the participation of reactive oxygen species, which can be trapped by ROS radical scavengers and ROS sensors. In the same experimental conditions, the free ligands and CuCl2 did not display any DNA cleaving activity. This result indicates that the complexes, rather than their components, play a significant role in the nuclease reaction process and that DNA cleavage may be initiated in an oxidative pattern. The proposed mechanism was attributed to the in situ activation of molecular oxygen by the oxidation of the copper complexes. In the MTT cytotoxicity studies, the three Cu(II) complexes exhibited an antitumor activity against the HeLa, BEL-7402 and HepG2 tumor cell lines. The HeLa cells treated with Cu(II) complexes demonstrated marked changes in their nuclear morphology, which were detected by Hoechst 33258 nuclear staining and acridine orange/ethidium bromide (AO/EB) staining assays. Nuclear chromatin cleavage also was observed from alkaline single-cell gel electrophoresis (comet assay).
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Affiliation(s)
- Lüying Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, P R China
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