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Shabaninejad Z, Nikkhah M, Nabavizadeh SM. DNA binding properties and cytotoxic effects of two double rollover cycloplatinated (II) complexes on cancer cell lines. J Inorg Biochem 2023; 243:112194. [PMID: 36966676 DOI: 10.1016/j.jinorgbio.2023.112194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/05/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
In this study, the DNA binding capacity and cytotoxic effects of two double rollovers cycloplatinated complexes, [Pt2(μ-bpy-2H)(CF3COO)2(PPh3)2] and [Pt2(μ-bpy-2H)(I)2(PPh3)2] denoted as C1 and C2, respectively, were evaluated. By using UV-Visible spectroscopy the intrinsic binding constant (Kb) of C1 and C2 to DNA were determined as 2.9 × 105 M-1, and 5.4 × 105 M-1, respectively. Both the compounds were able to quench the fluorescence of ethidium bromide as a well known DNA intercalator. The calculated Stern-Volmer quenching constants (Ksv) for C1 and C2 were 3.5 × 103 M-1, and 1.2 × 104 M-1, respectively. Upon interaction of both the compounds with DNA, increase in viscosity of DNA solution were observed, further confiming the involvement of intercalative interactions between the complexes and DNA. The cytotoxic effects of complexes in compare to cisplatin were evaluated on different cancer cell lines by MTT assay. Interestingly, C2 showed the highest cytotoxicity on A2780R, a cisplatin resistant-cell line. Induction of apoptosis by the complexes was proved by flowcytometry. In all the studied cell lines, the extent of apoptosis induced by C2 was comparable or higher than cisplatin. Cisplatin induced more necrosis in all the cancer cell lines in the tested concentration.
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Affiliation(s)
- Zahra Shabaninejad
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-175, Tehran, Iran
| | - Maryam Nikkhah
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-175, Tehran, Iran.
| | - S Masoud Nabavizadeh
- Department of Chemistry, College of Sciences, Shiraz University, P.O. Box: 71454, Shiraz, Iran
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2
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Vinay Kumar B, Ananda Murthy HC, Aravinda T, Harish KN, Bhojya Naik HS. Advancement in specific strand scission of DNA and evaluation of in-vitro biological assessment by pharmacologically significant tetraaza macrocyclic metal complexes constrained by triazole. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:896-913. [PMID: 34396914 DOI: 10.1080/15257770.2021.1962536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION
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Affiliation(s)
- B Vinay Kumar
- Department of Chemistry, RNS Institute of Technology, Bengaluru, Karnataka, India
| | - H C Ananda Murthy
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, Adama, Ethiopia
| | - T Aravinda
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, Karnataka, India
| | - K N Harish
- Department of Chemistry, Dayananda Sagar College of Engineering, Bengaluru, India
| | - H S Bhojya Naik
- Department of Studies and Research in Industrial Chemistry, Kuvempu University, Shankaraghatta, Shimoga, India
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3
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Zhou YY, Xu DY, Cheng W, Wang Y, Tong BH, He GF, Tian YP. Effect of the triptycene scaffold on the photophysical, electrochemical and electroluminescence properties of the iridium( iii) complex. NEW J CHEM 2020. [DOI: 10.1039/d0nj01930e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complex 2 achieves obviously higher nondoped device performance (12.6 cd A−1, 5.5%) than that of complex 1 (9.8 cd A−1, 3.8%).
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Affiliation(s)
- Yue-Yue Zhou
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Ding-Yan Xu
- National Engineering Lab for TFT-LCD Materials and Technologies
- Department of Electronic Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wei Cheng
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Yue Wang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Bi-Hai Tong
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Gu-Feng He
- National Engineering Lab for TFT-LCD Materials and Technologies
- Department of Electronic Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yong-Pan Tian
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
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4
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Wang Y, Xiao YP, Zhou YY, Hu CG, Tong BH, Ye SH, Mei QB. Novel phosphorescent triptycene-based Ir(iii) complexes for organic light-emitting diodes. Dalton Trans 2019; 48:16289-16297. [PMID: 31621733 DOI: 10.1039/c9dt03182k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A series of charge-neutral cyclometalated iridium(iii) complexes (1-3 and 5-7) containing triptycene-substituted ligands (tbt and tpbi) and two parent complexes (4 and 8) were synthesized and characterized. The crystal structures indicated that π-π stacking interactions existed in ligand tbtH, but not in complex 6. However, a large intramolecular repulsion was found in complex 6. These triptycene-based complexes exhibited good thermal stability, which was higher compared with that of the parent complexes. These complexes showed green to yellow emission with peaks that ranged from 503 to 563 nm. The introduction of the rigid non-conjugate triptycene skeleton caused a slight emission red shift (<25 nm), but a significant increase in the PLQYs (>47%) was observed. The electroluminescent devices employing 2 and 6 as phosphors displayed impressive performance improvements and low efficiency roll-off because of the higher PLQYs and HOMO levels of these triptycene-based complexes. The maximum current and external quantum efficiencies of the devices based on complexes 2 and 6 were 41.7 cd A-1, 11.9% and 41.2 cd A-1, 12.6%, respectively, which were about 31% higher than that of the devices based on the parent complexes 4 and 8. This work provides a novel approach to develop highly efficient phosphors with a triptycene skeleton.
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Affiliation(s)
- Yue Wang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Yu-Ping Xiao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, Jiangsu, China.
| | - Yue-Yue Zhou
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Cheng-Gui Hu
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Bi-Hai Tong
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Shang-Hui Ye
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, Jiangsu, China.
| | - Qun-Bo Mei
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, Jiangsu, China.
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A novel Trans-Pt(II) complex bearing 2-acetoxymethylbenzimidazole as a non-leaving ligand (trans-[Pt(AMBi)2Cl2]): Synthesis, antiproliferative activity, DNA interaction and molecular docking studies compared with its cis isomer (cis-[Pt(AMBi)2Cl2]). J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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6
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Sanmartín-Matalobos J, Fondo M, García-Deibe AM, Amoza M, Bermejo P, Domínguez MR, Mota AJ, Pérez-Lustres JL, Bhowmick S, Das N. Zinc-mediated diastereoselective assembly of a trinuclear circular helicate. RSC Adv 2016. [DOI: 10.1039/c6ra01783e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
We have designed a triptycene-based ditopic ligand H2L, which is able to adopt an adequate topology required for optimal binding to naked Zn2+ leading to a neutral trinuclear circular helicate Zn3L3.
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Kumari R, Singh S, Monisha M, Bhowmick S, Roy A, Das N, Das P. Hierarchical coassembly of DNA-triptycene hybrid molecular building blocks and zinc protoporphyrin IX. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:697-707. [PMID: 27335759 PMCID: PMC4901925 DOI: 10.3762/bjnano.7.62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/29/2016] [Indexed: 05/06/2023]
Abstract
Herein, we describe the successful construction of composite DNA nanostructures by the self-assembly of complementary symmetrical 2,6,14-triptycenetripropiolic acid (TPA)-DNA building blocks and zinc protoporphyrin IX (Zn PpIX). DNA-organic molecule scaffolds for the composite DNA nanostructure were constructed through covalent conjugation of TPA with 5'-C12-amine-terminated modified single strand DNA (ssDNA) and its complementary strand. The repeated covalent conjugation of TPA with DNA was confirmed by using denaturing polyacrylamide gel electrophoresis (PAGE), reverse-phase high-performance liquid chromatography (RP-HPLC) and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF). The biologically relevant photosensitizer Zn PpIX was used to direct the hybridization-mediated self-assembly of DNA-TPA molecular building blocks as well as a model guest molecule within the DNA-TPA supramolecular self-assembly. The formation of fiber-like composite DNA nanostructures was observed. Native PAGE, circular dichroism (CD) and atomic force microscopy (AFM) have been utilized for analyzing the formation of DNA nanofibers after the coassembly. Computational methods were applied to discern the theoretical dimension of the DNA-TPA molecular building block of the nanofibers. A notable change in photocatalytic efficiency of Zn PpIX was observed when it was inside the TPA-DNA scaffold. The significant increase in ROS generation by Zn PpIX when trapped in this biocompatible DNA-TPA hybrid nanofiber may be an effective tool to explore photodynamic therapy (PDT) applications as well as photocatalytic reactions.
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Affiliation(s)
- Rina Kumari
- Department of Chemistry, IIT Patna, Bihata 801118, India
| | - Sumit Singh
- Department of Chemistry, IIT Patna, Bihata 801118, India
| | - Mohan Monisha
- Department of Biotechnology, IIT Hyderabad, Hyderabad, 502205, India
| | | | - Anindya Roy
- Department of Biotechnology, IIT Hyderabad, Hyderabad, 502205, India
| | - Neeladri Das
- Department of Chemistry, IIT Patna, Bihata 801118, India
| | - Prolay Das
- Department of Chemistry, IIT Patna, Bihata 801118, India
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8
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Coban B, Tekin IO, Sengul A, Yildiz U, Kocak I, Sevinc N. DNA studies of newly synthesized heteroleptic platinum(II) complexes [Pt(bpy)(iip)](2+) and [Pt(bpy)(miip)](2.). J Biol Inorg Chem 2015; 21:163-75. [PMID: 26626200 DOI: 10.1007/s00775-015-1317-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 11/18/2015] [Indexed: 12/20/2022]
Abstract
Two new mono-nuclear heteroleptic platinum(II) complexes, [Pt(bpy)(iip)](PF6)2 (1) and [Pt(bpy)(miip)](PF6)2·2H2O (2) (bpy is 2,2'-bipyridine; iip is 2-(imidazo-4-yl)-1H-imidazo[4,5-f] [1,10] phenanthroline; miip is 2-(1-methylimidazo-2-yl)-1H-imidazo[4,5-f] [1, 10] phenanthroline), have been synthesized and fully characterized by CHN analysis, electrospray ionization and MALDI-TOF mass spectrometry, (1)H NMR, FT-IR (ATR), and UV-Vis spectrophotometer. Cytotoxicity, ability to inhibit DNA transcription and DNAse activity of the complexes were studied. The DNA-binding behaviors of both complexes have also been studied by spectroscopic methods, cyclic voltammetry and viscosity measurements. Both complexes showed cytotoxic properties and 2 was more cytotoxic than 1. DNA transcription was inhibited upon increasing concentrations of both complexes. The complex 2 was found to be a better inhibitor than 1. The same pattern can be seen in the DNAse profile of the complexes. In addition, 2 was found to promote cleavage of pBR322 DNA at a lower concentration than 1. The spectroscopic, electrochemical and viscometric results indicate that both complexes show some degree of binding to DNA in an intercalative mode, resulting in intrinsic binding constants K b = 3.55 ± 0.6 × 10(4) M(-1) and 7.01 ± 0.9 × 10(4) M(-1) for 1 and 2, respectively. The difference in the DNA-binding affinities of 1 and 2 may presumably be explained by the methylated imidazole nitrogen atom that makes the compound more hydrophobic and gives better intercalative binding ability to DNA's hydrophobic environment.
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Affiliation(s)
- Burak Coban
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey.
| | - Ishak Ozel Tekin
- Department of Immunology, Faculty of Medicine, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Abdurrahman Sengul
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Ufuk Yildiz
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Izzet Kocak
- Department of Chemistry, Faculty of Arts and Sciences, Bulent Ecevit University, 67100, Zonguldak, Turkey
| | - Nergis Sevinc
- Department of Immunology, Faculty of Medicine, Bulent Ecevit University, 67100, Zonguldak, Turkey
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Icsel C, Yilmaz VT, Kaya Y, Durmus S, Sarimahmut M, Buyukgungor O, Ulukaya E. Cationic Pd(II)/Pt(II) 5,5-diethylbarbiturate complexes with bis(2-pyridylmethyl)amine and terpyridine: Synthesis, structures,DNA/BSA interactions, intracellular distribution, cytotoxic activity and induction of apoptosis. J Inorg Biochem 2015; 152:38-52. [DOI: 10.1016/j.jinorgbio.2015.08.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 08/25/2015] [Accepted: 08/26/2015] [Indexed: 02/05/2023]
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