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Koran K, Çalışkan E, Altay Öztürk D, Çapan İ, Tekin S, Sandal S, Orhan Görgülü A. The first peptide derivatives of dioxybiphenyl-bridged spiro cyclotriphosphazenes: In vitro cytotoxicity activities and DNA damage studies. Bioorg Chem 2023; 132:106338. [PMID: 36603512 DOI: 10.1016/j.bioorg.2022.106338] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/03/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
In this study, we aimed to synthesize new peptide-substituted cyclotriphosphazenes from a series of tyrosine-based peptides and dioxyphenyl-substituted spirocyclotriphosphazenes, and to evaluate their in vitro cytotoxicity and genotoxicity activities. Genotoxicity studies were conducted to understand whether the cytotoxic compounds cause cell death through DNA damage. The structures of the novel series of phosphazenes were characterized by FT-IR, elemental analysis, MS, 1D (31P, 1H, and 13C-APT NMR), and 2D (HETCOR) NMR spectroscopic techniques. In vitro cytotoxic activities were carried out against human breast (MCF-7), ovarian (A2780), prostate (PC-3), colon (Caco-2) cancer cell lines and human normal epithelial cell line (MCF-10A) at different concentrations by using an MTT assay. The compounds showed considerable reductions in cell viability against all human cancer cell lines. Especially, the compounds exhibited notable effects in A2780 cell lines (p < 0.05). The IC50 values of the compounds in the A2780 cell line were calculated to be 1.914 µM for TG, 20.21 µM for TV, 20.45 µM for TA, 4.643 µM for TP, 5.615 µM for BTG, 1.047 µM for BTV, 27.02 µM for BTA, 0.7734 µM for BTP, 21.5 µM for DTG, 1.65 µM for DTV, 2.89 µM for DTA and 4.599 µM for DTP. DNA damage studies of the compounds were conducted by the comet assay method using tail length, tail density, olive tail moment, head length, and head density parameters, and the results showed that the cell death occurred through DNA damage mechanism. In a nutshell, these compounds show promising cytotoxic effects and can be considered powerful candidate molecules for pharmaceutical applications.
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Affiliation(s)
- Kenan Koran
- Kenan Koran - Department of Chemistry, Faculty of Science, Fırat University, Elazig 23119, Turkey.
| | - Eray Çalışkan
- Department of Chemistry, Faculty of Science, Bingöl University, Bingöl 12000, Turkey
| | - Dilara Altay Öztürk
- Department of Physiology, Faculty of Medicine, Turgut Ozal University, Malatya 44210, Turkey
| | - İrfan Çapan
- Department of Materials and Material Processing Techn. Polymer Technology Program, Vocational School of Technical Sciences, Gazi University, Ankara 06560, Turkey
| | - Suat Tekin
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya 44280, Turkey
| | - Süleyman Sandal
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya 44280, Turkey
| | - Ahmet Orhan Görgülü
- Department of Chemistry, Faculty of Science, Marmara University, Istanbul, Turkey
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2
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Cemaloğlu R, Asmafiliz N, Çoşut B, Kılıç Z, Sabah BN, Açık L, Mergen H, Hökelek T. Phosphorus-nitrogen compounds: Part 69—Unsymmetrical dispiro(N/N)cyclotriphosphazenes containing different pendant arms: syntheses, characterization, stereogenism, photophysical and bioactivity studies. RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-04984-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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3
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Cyclo- and Polyphosphazenes for Biomedical Applications. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238117. [PMID: 36500209 PMCID: PMC9736570 DOI: 10.3390/molecules27238117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Cyclic and polyphosphazenes are extremely interesting and versatile substrates characterized by the presence of -P=N- repeating units. The chlorine atoms on the P atoms in the starting materials can be easily substituted with a variety of organic substituents, thus giving rise to a huge number of new materials for industrial applications. Their properties can be designed considering the number of repetitive units and the nature of the substituent groups, opening up to a number of peculiar properties, including the ability to give rise to supramolecular arrangements. We focused our attention on the extensive scientific literature concerning their biomedical applications: as antimicrobial agents in drug delivery, as immunoadjuvants in tissue engineering, in innovative anticancer therapies, and treatments for cardiovascular diseases. The promising perspectives for their biomedical use rise from the opportunity to combine the benefits of the inorganic backbone and the wide variety of organic side groups that can lead to the formation of nanoparticles, polymersomes, or scaffolds for cell proliferation. In this review, some aspects of the preparation of phosphazene-based systems and their characterization, together with some of the most relevant chemical strategies to obtain biomaterials, have been described.
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4
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Tümer Y. Synthesis, structural, and stereogenic characterizations of new trispirocyclotriphosphazenes. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yasemin Tümer
- Department of Chemistry Karabük University Karabük Turkey
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5
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Phosphorus-nitrogen compounds: Part 61. The novel sodium complexes of monoferrocenylspirocyclotriphosphaza-crown ethers. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Phosphorus-nitrogen compounds: part 57—Syntheses of tetrachloro- and tetraaminobenzylspiro(N/N)cyclotriphosphazenes: chemical, structural characterizations, bioactivity and molecular docking studies. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04746-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Şenkuytu E, Akbaş N, Yıldırım T, Çiftçi GY. The bioactive new type paraben decorated dispiro-cyclotriphosphaze compounds: synthesis, characterization and cytotoxic activity studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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8
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Tümer Y, Özdemir SZ. Vanillinato-Substituted Monospirocyclotriphosphazenes: Synthesis, Spectroscopic and Crystallographic Characterizations, and Thermal Properties. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363221120276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Tümer Y, Asmafiliz N, Kılıç Z, Hökelek T. Phosphorus–nitrogen compounds: part 63. Mono- and bis-vanillinatobisferrocenyldispiro( N/ N)cyclotriphosphazenes and their macrocyclic Schiff-bases: synthesis, structural characterization and isomerism. NEW J CHEM 2022. [DOI: 10.1039/d2nj00846g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Mono/bis-vanillinato ferrocenyldispirocyclotriphosphazenes and Schiff-bases were obtained. Structures of the compounds were determined using spectroscopic methods. Absolute configurations of three compounds were defined by X-ray crystallography.
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Affiliation(s)
- Yasemin Tümer
- Department of Chemistry, Karabük University, 78050 Karabük, Turkey
| | - Nuran Asmafiliz
- Department of Chemistry, Ankara University, 06100 Ankara, Turkey
| | - Zeynel Kılıç
- Department of Chemistry, Ankara University, 06100 Ankara, Turkey
| | - Tuncer Hökelek
- Department of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey
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10
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Bozkurt B, Elmas G, Yakut M, Okumuş A, Çerçi NA, Zeyrek CT, Kılıç Z, Açık L, Hökelek T. Phosphorus‐nitrogen compounds part 59. The syntheses of tetrachloro and tetraamino‐2‐pyridylmethylspiro(N/N)ethylenediaminocyclotriphosphazenes: Structural characterization, bioactivity, and molecular docking studies. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100475] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bilge Bozkurt
- Department of Chemistry Ankara University Ankara Turkey
| | - Gamze Elmas
- Department of Chemistry Ankara University Ankara Turkey
| | - Mehtap Yakut
- Department of Chemistry Ankara University Ankara Turkey
| | - Aytuğ Okumuş
- Department of Chemistry Ankara University Ankara Turkey
| | | | - Celal Tuğrul Zeyrek
- Department of Academy and Publications Turkish Energy, Nuclear and Mineral Research Agency Ankara Turkey
| | - Zeynel Kılıç
- Department of Chemistry Ankara University Ankara Turkey
| | - Leyla Açık
- Department of Biology Gazi University Ankara Turkey
| | - Tuncer Hökelek
- Department of Physics Hacettepe University Ankara Turkey
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11
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Phosphorus–nitrogen compounds Part 55. Syntheses of 4-methoxybenzylspiro(N/N)cyclotriphosphazenes: chemical, structural and biological properties. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04505-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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12
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İşcan Ö, Cemaloğlu R, Asmafiliz N, Zeyrek CT, Kılıç Z, Açık L, Aydın B, Türk M, Hökelek T. Phosphorus-nitrogen compounds: part 53-synthesis, characterization, cytotoxic and antimicrobial activity, DNA interaction and molecular docking studies of new mono- and dispirocyclotriphosphazenes with pendant arm(s). Mol Divers 2021; 26:1077-1100. [PMID: 33988806 DOI: 10.1007/s11030-021-10231-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/05/2021] [Indexed: 10/21/2022]
Abstract
Mono-/dispirocyclotriphosphazenes with pendant arm(s) are robust, but they are less investigated inorganic ring systems. In this study, a series of mono (3 and 4)- and dispirocyclotriphosphazenes with 4-chloro-benzyl pendant arm(s) (13-16) was obtained from the Cl exchange reactions of hexachlorocyclotriphosphazene with sodium (N-benzyl)aminopropanoxides (1 and 2). When compound (3) reacted with excess pyrrolidine, morpholine, tetra-1,4-dioxa-8-azaspiro[4,5]decane (DASD) and piperidine, the fully substituted monospirocyclotriphosphazenes (7, 9, 10 and 12) occurred. But, the reactions of 4 with excess piperidine and morpholine produced the gem-piperidino (5)- and morpholino (6)-substituted monospirocyclotriphosphazenes, whereas the reactions of 4 with excess pyrrolidine and DASD gave the fully substituted monospirocyclotriphosphazenes (8) and (11). However, it should be indicated that these derivatives were obtained to be used for the investigation of their spectral, stereogenic and biological properties. The structures of 5, 7 and 14 were determined crystallographically. X-ray data of 5 and 14 displayed that both of compounds were chiral in solid state, and their absolute configurations were assigned as R and RR. Additionally, the antimicrobial activities of phosphazenes were investigated. Minimum inhibitory concentrations, minimal bacterial concentrations and minimum fungicidal concentrations of phosphazenes were determined. The interactions of phosphazenes with plasmid DNA were evaluated by agarose gel electrophoresis. The cytotoxic activities of compounds were studied against L929 fibroblast and DLD-1 colon cancer cells. In addition, density functional theory calculations of 5, 7 and 14 were reported, and their molecular docking studies with DNA, E. coli DNA gyrase and topoisomerase IV were presented.
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Affiliation(s)
- Özlem İşcan
- Department of Chemistry, Ankara University, 06100, Ankara, Turkey.,Project and Technology Office, Bartın University, 74100, Bartın, Turkey
| | - Reşit Cemaloğlu
- Department of Chemistry, Ankara University, 06100, Ankara, Turkey
| | - Nuran Asmafiliz
- Department of Chemistry, Ankara University, 06100, Ankara, Turkey.
| | - Celal Tuğrul Zeyrek
- Department of Academy and Publication, Turkish Energy, Nuclear and Mining Research Institution, 06100, Ankara, Turkey
| | - Zeynel Kılıç
- Department of Chemistry, Ankara University, 06100, Ankara, Turkey
| | - Leyla Açık
- Department of Biology, Gazi University, 06500, Ankara, Turkey
| | - Betül Aydın
- Department of Biology, Gazi University, 06500, Ankara, Turkey
| | - Mustafa Türk
- Department of Bioengineering, Kırıkkale University, 71450, Yahşihan, Kırıkkale, Turkey
| | - Tuncer Hökelek
- Department of Physics, Hacettepe University, 06800, Ankara, Turkey
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13
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Okumuş A, Elmas G, Kılıç Z, Binici A, Ramazanoğlu N, Açık L, Çoşut B, Hökelek T, Güzel R, Tunalı BÇ, Türk M, Şimşek H. The comparative reactions of 2‐
cis
‐4‐ansa and spiro cyclotetraphosphazenes with difunctional ligands: Structural and stereogenic properties, electrochemical, antimicrobial and cytotoxic activity studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6150] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Aytuğ Okumuş
- Department of Chemistry Ankara University Ankara Turkey
| | - Gamze Elmas
- Department of Chemistry Ankara University Ankara Turkey
| | - Zeynel Kılıç
- Department of Chemistry Ankara University Ankara Turkey
| | - Arzu Binici
- Republic of Turkey Ministry of Health Ankara Turkey
| | | | - Leyla Açık
- Department of Biology Gazi University Ankara Turkey
| | - Bünyemin Çoşut
- Department of Chemistry Gebze Technical University Gebze‐Kocaeli Turkey
| | - Tuncer Hökelek
- Department of Physics Hacettepe University Ankara Turkey
| | - Remziye Güzel
- Department of Chemistry Dicle University Diyarbakır Turkey
| | | | - Mustafa Türk
- Department of Bioengineering Kırıkkale University Yahşihan‐Kırıkkale Turkey
| | - Hülya Şimşek
- Department of Microbiology Bozok University Yozgat Turkey
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14
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Doğan H, Bahar MR, Çalışkan E, Tekin S, Uslu H, Akman F, Koran K, Sandal S, Görgülü AO. Synthesis and spectroscopic characterizations of hexakis[(1-(4'-oxyphenyl)-3-(substituted-phenyl)prop-2-en-1-one)]cyclotriphosphazenes: their in vitro cytotoxic activity, theoretical analysis and molecular docking studies. J Biomol Struct Dyn 2020; 40:3258-3272. [PMID: 33210560 DOI: 10.1080/07391102.2020.1846621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The hexachlorocyclotriphosphaze compound (N3P3Cl6, HCCP) was reacted with excess (E)-(1-(4'-oxyphenyl)-3-(substituted-phenyl)prop-2-en-1-ones (2-11) to produce hexakis[(1-(4-oxyphenyl)-3-(substituted-phenyl)prop-2-en-1-one)]cyclotriphosphazenes (CP 2-11). The structures of products (CP 2-11) were confirmed using elemental analysis, FT-IR, MS spectral analysis as well as 31P, 1H and 13C-APT NMR techniques and their thermal properties determined by TGA and DSC techniques. The HOMO-LUMO energy gap and chemical reactivity identifiers were calculated and HOMO and LUMO images were viewed. According to the calculations, all the chemical potential values of CP 2-11 are negative and it shown that the molecules are stable. The in vitro cytotoxic of CP 2-11 investigated and their activity potentials were evaluated by molecular docking studies with Autodock Vina softwares. CP 2-11 compounds were found to demonstrate cytotoxic activity against human cancer cell lines (A2780, LNCaP and PC-3). The CP 2-11 compounds reduced the cell viability against all cancer cell lines in the range 36%-90% especially. The results showed that these compounds are powerful candidate molecules for pharmaceutical applications.
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Affiliation(s)
- Hacer Doğan
- Chemistry Department, Science Faculty, Firat University, Elazığ, Turkey
| | - Mehmet Refik Bahar
- Physiology Department, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Eray Çalışkan
- Department of Chemistry, Faculty of Science, Bingol University, Bingol, Turkey
| | - Suat Tekin
- Physiology Department, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Harun Uslu
- Department of Anesthesiology, Vocational School of Health Services, Firat University, Elazığ, Turkey
| | - Feride Akman
- Vocational School of Technical Sciences, Bingol University, Bingol, Turkey
| | - Kenan Koran
- Department of Food Processing, Karakoçan Voc. School, Firat University, Elazığ, Turkey
| | - Süleyman Sandal
- Physiology Department, Faculty of Medicine, Inonu University, Malatya, Turkey
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15
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Kuzey NG, Özgür M, Cemaloğlu R, Asmafiliz N, Kılıç Z, Açık L, Aydın B, Hökelek T. Mono- and dispirocyclotriphosphazenes containing 4-bromobenzyl pendant arm(s): Synthesis, spectroscopy, crystallography and biological activity studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128658] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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16
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Şenkuytu E, Eserci H, Bayık N, Akbaş N, Okutan E, Çiftçi GY. Synthesis, characterization, and photophysical properties of paraben substituted cyclotriphosphazenes with hydrophilic side groups. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2020.1728759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Elif Şenkuytu
- Department of Chemistry, Faculty of Science, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Hande Eserci
- Department of Chemistry, Faculty of Science, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Nagihan Bayık
- Department of Chemistry, Faculty of Science, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Nadide Akbaş
- Department of Chemistry, Faculty of Science, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Elif Okutan
- Department of Chemistry, Faculty of Science, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Gönül Yenilmez Çiftçi
- Department of Chemistry, Faculty of Science, Gebze Technical University, Gebze, Kocaeli, Turkey
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17
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Şenkuytu E, Kızılkaya P, Ölçer Z, Pala U, Davarcı D, Zorlu Y, Erdoğan H, Yenilmez Çiftçi G. Electrophoresis and Biosensor-Based DNA Interaction Analysis of the First Paraben Derivatives of Spermine-Bridged Cyclotriphosphazenes. Inorg Chem 2020; 59:2288-2298. [PMID: 31986027 DOI: 10.1021/acs.inorgchem.9b03031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cancer is the uncontrolled growth of abnormal cells via malignant cell division and rapid DNA replication. While DNA damaging molecules can cause cancer, their role as anticancer drugs are very significant. For this purpose, the novel series of paraben substituted spermine bridged(dispirobino) cyclotriphosphazene compounds 2-6 were synthesized for the first time, and their structures were characterized by various spectroscopic techniques. The solid-state structures and geometries of compounds 2-6 were determined using single-crystal X-ray structural analysis. In addition, it was confirmed by TGA that all compounds 1-6 showed high thermal stability. Two methods were used in order to investigate DNA interaction properties of the targeted molecules. While biosensor-based screening test that measures DNA hybridization efficiency on a biochip surface, the agarose gel electrophoresis method examines the effect of compounds on plasmid DNA structure. The results collected from the automated biosensor device and agarose gel electrophoresis have indicated that compounds 1, 5, and 6 showed higher DNA damage than the compounds 2-4. According to the biosensor results, compounds 1, 5, and 6 showed 85%, 69%, and 77% activity, respectively.
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Affiliation(s)
- Elif Şenkuytu
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey
| | - Perihan Kızılkaya
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey.,Faculty of Arts and Science, Department of Chemistry , Trakya University , Edirne 22020 , Turkey
| | - Zehra Ölçer
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey
| | - Uğur Pala
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey
| | - Derya Davarcı
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey
| | - Yunus Zorlu
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey
| | - Huriye Erdoğan
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey
| | - Gönül Yenilmez Çiftçi
- Department of Chemistry , Gebze Technical University , Gebze 41400 , Kocaeli , Turkey
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18
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Bilge Koçak S, Kaya Ö, Kılıç Z, Coban B, Yildiz U, Çoşut B. Syntheses, spectral and chiral properties and DNA interactions of multi-heterocyclic di- and trinuclear boron complexes. NEW J CHEM 2020. [DOI: 10.1039/d0nj04474a] [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
Stereoisomers of Salen-boron complexes with two equivalent stereogenic B-centers giving rise to diastereoisomers were assigned by CD and NMR spectra.
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Affiliation(s)
| | - Özgecan Kaya
- Department of Chemistry
- Ankara University
- 06100 Ankara
- Turkey
| | - Zeynel Kılıç
- Department of Chemistry
- Ankara University
- 06100 Ankara
- Turkey
| | - Burak Coban
- Department of Chemistry
- Zonguldak Bülent Ecevit University
- Incivez
- 67100 Zonguldak
- Turkey
| | - Ufuk Yildiz
- Department of Chemistry
- Zonguldak Bülent Ecevit University
- Incivez
- 67100 Zonguldak
- Turkey
| | - Bünyemin Çoşut
- Department of Chemistry
- Gebze Technical University
- 41400 Gebze-Kocaeli
- Turkey
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19
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Phosphorus-nitrogen compounds. Part 52. The reactions of octachlorocyclotetraphosphazene with sodium 3-(N-ferrocenylmethylamino)-1-propanoxide: Investigations of spectroscopic, crystallographic and stereogenic properties. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.119106] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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