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Vora M, Dey S, Kongor A, Panchal M, Verma A, Trivedi P, Sindhav G, Jain V. CHEF induced fluorometric sensing of Al3+ and picric acid with bioimaging in human peripheral blood mononuclear cell. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Fluorescent Calixarene-Schiff as a Nanovehicle with Biomedical Purposes. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Gene therapy is a technique that is currently under expansion and development. Recent advances in genetic medicine have paved the way for a broader range of therapies and laid the groundwork for next-generation technologies. A terminally substituted difluorene-diester Schiff Base calix[4]arene has been studied in this work as possible nanovector to be used in gene therapy. Changes to luminescent behavior of the calixarene macrocycle are reported in the presence of ct-DNA. The calixarene macrocycle interacts with calf thymus DNA (ct-DNA), generating changes in its conformation. Partial double-strand denaturation is induced at low concentrations of the calixarene, resulting in compaction of the ct-DNA. However, interaction between calixarene molecules themselves takes place at high calixarene concentrations, favoring the decompaction of the polynucleotide. Based on cytotoxicity studies, the calixarene macrocycle investigated has the potential to be used as a nanovehicle and improve the therapeutic efficacy of pharmacological agents against tumors.
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Ozkan SC, Aksakal F, Yilmaz A. Synthesis of novel calix[4]arene p-benzazole derivatives and investigation of their DNA binding and cleavage activities with molecular docking and experimental studies. RSC Adv 2020; 10:38695-38708. [PMID: 35517565 PMCID: PMC9057276 DOI: 10.1039/d0ra07486a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 09/14/2020] [Indexed: 12/05/2022] Open
Abstract
In this study, novel p-benzimidazole-derived calix[4]arene compounds with different structures, and a benzothiazole-derived calix[4]arene compound, were synthesized by a microwave-assisted method and their structures were determined by FTIR, 1H NMR, 13C NMR, MALDI-TOF mass spectroscopy, and elemental analysis. The effects of functional calixarenes against bacterial (pBR322 plasmid DNA) and eukaryotic DNA (calf thymus DNA = CT-DNA) were investigated. The studies with plasmid DNA have shown that compounds 6 and 10 containing methyl and benzyl groups, respectively, have DNA cleavage activity at the highest concentrations (10 000 μM). Interactions with plasmid DNA using some restriction enzymes (BamHI and HindIII) were also investigated. The binding ability of p-substituted calix[4]arene compounds towards CT-DNA was examined using UV-vis and fluorescence spectroscopy and it was determined that some compounds showed efficiency. In particular, it was observed that the functional compounds (10 and 5) containing benzyl and chloro-groups had higher activity (K b binding constants were found to be 7.1 × 103 M-1 and 9.3 × 102 M-1 respectively) on DNA than other compounds. Competitive binding experiments using ethidium bromide also gave an idea about the binding properties. Docking studies of the synthesized compounds with DNA were performed to predict the binding modes, affinities and noncovalent interactions stabilizing the DNA-compound complexes at the molecular level. Docking results were in good agreement with the experimental findings on the DNA binding activities of compounds. Based on these results, this preliminary study could shed light on future experimental antibacterial and/or anticancer research.
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Affiliation(s)
- Seyda Cigdem Ozkan
- Department of Chemical and Chemical Processing Technologies, Acigol Vocational School of Technical Sciences, Nevsehir Haci Bektas Veli University Nevsehir Turkey +90 332 2412499 +90 332 2233866
- Department of Chemistry, Faculty of Science, Selcuk University 42075 Konya Turkey
| | - Fatma Aksakal
- Department of Chemistry, Faculty of Science, Hacettepe University Ankara Turkey
| | - Aydan Yilmaz
- Department of Chemistry, Faculty of Science, Selcuk University 42075 Konya Turkey
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Pan Y, Hu X, Guo D. Biomedizinische Anwendungen von Calixarenen: Stand der Wissenschaft und Perspektiven. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916380] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yu‐Chen Pan
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Xin‐Yue Hu
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Dong‐Sheng Guo
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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Pan Y, Hu X, Guo D. Biomedical Applications of Calixarenes: State of the Art and Perspectives. Angew Chem Int Ed Engl 2020; 60:2768-2794. [DOI: 10.1002/anie.201916380] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Yu‐Chen Pan
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Xin‐Yue Hu
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
| | - Dong‐Sheng Guo
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education) State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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Lépori CMO, Correa NM, Silber JJ, Falcone RD, López-López M, Moyá ML. Use of Ionic Liquids-like Surfactants for the Generation of Unilamellar Vesicles with Potential Applications in Biomedicine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13332-13339. [PMID: 31510743 DOI: 10.1021/acs.langmuir.9b01197] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The goal of this work is to understand the influence of the counterion nature on the organized systems formed by 1,4-bis-2-ethylhexylsulfosuccinate surfactants in aqueous solutions and how these aggregates will influence the deoxyribonucleic acid (DNA)-surfactant interactions. With this in mind, two ionic liquid-like surfactants were investigated: 1-butyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate (bmim-AOT) and 1-hexyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate (hmim-AOT). Measurements of dynamic light scattering, ζ-potential, transmission electron microscopy, and fluorescence and UV-visible spectroscopy were performed to study the characteristics of the vesicles formed by bmim-AOT and hmim-AOT. Regarding the determination of the interaction of the surfactants with DNA, circular dichroism was used. The results obtained showed that bmim-AOT and hmim-AOT ionic liquid-like surfactants spontaneously form unilamellar vesicles in water at very low surfactant concentrations. The characteristics of these aggregates are dependent on the length of the tail of the counterions. The length of the hydrophobic chains of the counterions also influences the DNA-surfactant interactions through hydrophobic effects.
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Affiliation(s)
- Cristian M O Lépori
- Instituto de Física Enrique Gaviola (IFEG) , Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad Nacional de Córdoba (UNC), Medina Allende s/n , Ciudad Universitaria , X5016LAE Córdoba , Argentina
| | - N Mariano Correa
- Departamento de Química , Universidad Nacional de Río Cuarto (UNRC) , Agencia Postal # 3 , X5804BYA Río Cuarto , Argentina
- Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS) , CONICET-UNRC , Agencia Postal # 3 , X5804BYA Río Cuarto , Argentina
| | - Juana J Silber
- Departamento de Química , Universidad Nacional de Río Cuarto (UNRC) , Agencia Postal # 3 , X5804BYA Río Cuarto , Argentina
- Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS) , CONICET-UNRC , Agencia Postal # 3 , X5804BYA Río Cuarto , Argentina
| | - R Darío Falcone
- Departamento de Química , Universidad Nacional de Río Cuarto (UNRC) , Agencia Postal # 3 , X5804BYA Río Cuarto , Argentina
- Instituto para el Desarrollo Agroindustrial y de la Salud (IDAS) , CONICET-UNRC , Agencia Postal # 3 , X5804BYA Río Cuarto , Argentina
| | - Manuel López-López
- Departamento de Ingeniería Química, Química Física y Ciencias de Materiales, Centro de Ciencia y Tecnología , Universidad de Huelva , Campus 'El Carmen', Facultad de Ciencias Experimentales , E-21071 Huelva , Spain
| | - M Luisa Moyá
- Departamento de Química Física , Universidad de Sevilla , c/Prof. García González 1 , 41012 Sevilla , Spain
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