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Bunea MC, Diculescu VC, Enculescu M, Oprea D, Enache TA. Influence of the Photodegradation of Azathioprine on DNA and Cells. Int J Mol Sci 2022; 23:14438. [PMID: 36430909 PMCID: PMC9692341 DOI: 10.3390/ijms232214438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
Azathioprine (AZA) is a pharmacologic immunosuppressive agent administrated in various conditions such as autoimmune disease or to prevent the rejection of organ transplantation. The mechanism of action is based on its biologically active metabolite 6-mercaptopurine (6-MP), which is converted, among others, into thioguanine nucleotides capable of incorporating into replicating DNA, which may act as a strong UV chromophore and trigger DNA oxidation. The interaction between azathioprine and DNA, before and after exposure to solar simulator radiation, was investigated using UV-vis spectrometry and differential pulse voltammetry at a glassy carbon electrode. The results indicated that the interaction of AZA with UV radiation was pH-dependent and occurred with the formation of several metabolites, which induced oxidative damage in DNA, and the formation of DNA-metabolite adducts. Moreover, the viability assays obtained for the L929 cell culture showed that both azathioprine and degraded azathioprine induced a decrease in cell proliferation.
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Affiliation(s)
| | | | - Monica Enculescu
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
| | - Daniela Oprea
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
- Faculty of Physics, University of Bucharest, Atomistilor 405, 077125 Magurele, Romania
| | - Teodor Adrian Enache
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
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2
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Nimal R, Nur Unal D, Erkmen C, Bozal-Palabiyik B, Siddiq M, Eren G, Shah A, Uslu B. Development of the electrochemical, spectroscopic and molecular docking approaches toward the investigation of interaction between DNA and anti-leukemic drug azacytidine. Bioelectrochemistry 2022; 146:108135. [DOI: 10.1016/j.bioelechem.2022.108135] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 12/16/2022]
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3
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Eleftheriadis GK, Genina N, Boetker J, Rantanen J. Modular design principle based on compartmental drug delivery systems. Adv Drug Deliv Rev 2021; 178:113921. [PMID: 34390776 DOI: 10.1016/j.addr.2021.113921] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/21/2021] [Accepted: 08/09/2021] [Indexed: 12/28/2022]
Abstract
The current manufacturing solutions for oral solid dosage forms are fundamentally based on technologies from the 19th century. This approach is well suited for mass production of one-size-fits-all products; however, it does not allow for a straight-forward personalization and mass customization of the pharmaceutical end-product. In order to provide better therapies to the patients, a need for innovative manufacturing concepts and product design principles has been rising. Additive manufacturing opens up a possibility for compartmentalization of drug products, including design of spatially separated multidrug and functional excipient compartments. This compartmentalized solution can be further expanded to modular design thinking. Modular design is referring to combination of building blocks containing a given amount of drug compound(s) and related functional excipients into a larger final product. Implementation of modular design principles is paving the way for implementing the emerging personalization potential within health sciences by designing compartmental and reactive product structures that can be manufactured based on the individual needs of each patient. This review will introduce the existing compartmentalized product design principles and discuss the integration of these into edible electronics allowing for innovative control of drug release.
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Affiliation(s)
| | - Natalja Genina
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Johan Boetker
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100 Copenhagen, Denmark.
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4
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Bunea MC, Diculescu VC, Enculescu M, Iovu H, Enache TA. Redox Mechanism of Azathioprine and Its Interaction with DNA. Int J Mol Sci 2021; 22:ijms22136805. [PMID: 34202734 PMCID: PMC8268956 DOI: 10.3390/ijms22136805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 01/24/2023] Open
Abstract
The electrochemical behavior and the interaction of the immunosuppressive drug azathioprine (AZA) with deoxyribonucleic acid (DNA) were investigated using voltammetric techniques, mass spectrometry (MS), and scanning electron microscopy (SEM). The redox mechanism of AZA on glassy carbon (GC) was investigated using cyclic and differential pulse (DP) voltammetry. It was proven that the electroactive center of AZA is the nitro group and its reduction mechanism is a diffusion-controlled process, which occurs in consecutive steps with formation of electroactive products and involves the transfer of electrons and protons. A redox mechanism was proposed and the interaction of AZA with DNA was also investigated. Morphological characterization of the DNA film on the electrode surface before and after interaction with AZA was performed using scanning electron microscopy. An electrochemical DNA biosensor was employed to study the interactions between AZA and DNA with different concentrations, incubation times, and applied potential values. It was shown that the reduction of AZA molecules bound to the DNA layer induces structural changes of the DNA double strands and oxidative damage, which were recognized through the occurrence of the 8-oxo-deoxyguanosine oxidation peak. Mass spectrometry investigation of the DNA film before and after interaction with AZA also demonstrated the formation of AZA adducts with purine bases.
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Affiliation(s)
- Mihaela-Cristina Bunea
- Laboratory of Multifunctional Materials and Structures, National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.-C.B.); (V.-C.D.); (M.E.)
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu, 011061 Bucharest, Romania;
| | - Victor-Constantin Diculescu
- Laboratory of Multifunctional Materials and Structures, National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.-C.B.); (V.-C.D.); (M.E.)
| | - Monica Enculescu
- Laboratory of Multifunctional Materials and Structures, National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.-C.B.); (V.-C.D.); (M.E.)
| | - Horia Iovu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu, 011061 Bucharest, Romania;
| | - Teodor Adrian Enache
- Laboratory of Multifunctional Materials and Structures, National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.-C.B.); (V.-C.D.); (M.E.)
- Correspondence:
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5
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Liu D, Zeng M, Pi JW, Liu MJ, Ding WZ, Mei XY, Liu JL, Cao XY. Exploring the Potential Mechanism of Costunolide-Induced MCF-7 Cells Apoptosis by Multi-Spectroscopy, Molecular Docking and Cell Experiments. Chem Biodivers 2021; 18:e2001069. [PMID: 33855794 DOI: 10.1002/cbdv.202001069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/12/2021] [Indexed: 12/15/2022]
Abstract
Breast cancer is one of the most common cancer with high morbidity and mortality in women. This study aimed to explore the potential mechanism of costunolide inducing MCF-7 cells apoptosis by multi-spectroscopy, molecular docking, and cell experiments. The results manifested that costunolide interacted with calf thymus DNA (ct-DNA) in a spontaneous manner, and the minor groove as the preferential binding mode. Furthermore, costunolide inhibited cell proliferation and colony formation. Hoechst 33258 staining showed that cell apoptosis induced by costunolide might be related to DNA damage. The apoptosis mechanism relied on regulating the protein expression of Bax, Bcl-2, p53, Caspase-3 and the activation of p38MAPK and nuclear factor κB (NF-κB) pathways. This study will provide some experimental basis and potential therapeutic strategy for breast cancer treatment.
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Affiliation(s)
- Dan Liu
- School of life Science, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Meng Zeng
- Tianjin Ecological Academy of Environmental Sciences, 17 Fukang Road Nankai District Tianjin, Tianjin, 300191, P. R. China
| | - Jing-Wen Pi
- School of life Science, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Mei-Jia Liu
- School of life Science, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Wei-Zhe Ding
- School of life Science, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Xue-Ying Mei
- School of life Science, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Jian-Li Liu
- School of life Science, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Xiang-Yu Cao
- School of life Science, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
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6
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Zhu M, Hu X, Zhang Y, Pan J, Zhang G. Revealing the groove binding characteristics of plant growth regulator 3-indoleacetic acid with calf thymus DNA. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115265] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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7
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Hu M, Zhu M, Xin L, Zhang G, Wu S, Hu X, Gong D. Change of benzo(a)pyrene during frying and its groove binding to calf thymus DNA. Food Chem 2021; 350:129276. [PMID: 33609937 DOI: 10.1016/j.foodchem.2021.129276] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 09/21/2020] [Accepted: 12/20/2020] [Indexed: 01/07/2023]
Abstract
Benzo[a]pyrene (BaP), a prototype of polycyclic aromatic hydrocarbons (PAHs) with potential mutagenicity, toxicity and carcinogenicity, is ubiquitous in deep-fried foods. Herein, the changes in eight specific PAHs (PAH8) concentration in sunflower oil during frying were investigated by gas chromatography-triple quadrupole-mass spectrometry (GC-QqQ-MS). PAH8 concentrations in sunflower oil were 23.92-27.82 μg kg-1 and increased with increasing frying time. The detected BaP levels were 3.64-4.00 μg kg-1, exceeding the upper limit (2 μg kg-1) set by European Union (EU), though below the limiting value (10 μg kg-1) in China. The interaction between BaP and calf thymus DNA (ctDNA) was explored through various spectroscopic methods and molecular docking. Melting studies, denaturation experiments, ionic strength effects and viscosity measurements indicated that BaP interacted with ctDNA primarily via groove binding as evidenced by circular dichroism analysis and molecular docking. Further gel electrophoresis assays suggested that DNA was damaged at high levels of BaP.
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Affiliation(s)
- Mingming Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Miao Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Le Xin
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Bor S. Luh Food Safety Research Centre, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Shimin Wu
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Bor S. Luh Food Safety Research Centre, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
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8
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Orts-Arroyo M, Castro I, Martínez-Lillo J. Detection of Hypoxanthine from Inosine and Unusual Hydrolysis of Immunosuppressive Drug Azathioprine through the Formation of a Diruthenium(III) System. BIOSENSORS 2021; 11:19. [PMID: 33440852 PMCID: PMC7827764 DOI: 10.3390/bios11010019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/27/2020] [Accepted: 01/06/2021] [Indexed: 12/30/2022]
Abstract
Hypoxanthine (hpx) is an important molecule for both biochemistry research and biomedical applications. It is involved in several biological processes associated to energy and purine metabolism and has been proposed as a biomarker for a variety of disease states. Consequently, the discovery and development of systems suitable for the detection of hypoxanthine is pretty appealing in this research field. Thus, we have obtained a stable diruthenium (III) compound in its dehydrated and hydrated forms with formula [{Ru(µ-Cl)(µ-hpx)}2Cl4] (1a) and [{Ru(µ-Cl)(µ-hpx)}2Cl4]·2H2O (1b), respectively. This purine-based diruthenium(III) system was prepared from two very different starting materials, namely, inosine and azathioprine, the latter being an immunosuppressive drug. Remarkably, it was observed that an unusual azathioprine hydrolysis occurs in the presence of ruthenium, thus generating hypoxanthine instead of the expected 6-mercaptopurine antimetabolite, so that the hpx molecule is linked to two ruthenium(III) ions. 1a and 1b were characterized through IR, SEM, powder and single-crystal X-ray Diffraction and Cyclic Voltammetry (CV). The electrochemical studies allowed us to detect the hpx molecule when coordinated to ruthenium in the reported compound. The grade of sensitivity, repeatability and stability reached by this diruthenium system make it potentially useful and could provide a first step to develop new sensor devices suitable to detect hypoxanthine.
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Affiliation(s)
| | | | - José Martínez-Lillo
- Instituto de Ciencia Molecular (ICMol), Universitat de València, c/ Catedrático José Beltrán 2, Paterna, 46980 València, Spain; (M.O.-A.); (I.C.)
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9
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Perkins KR, Atilho RM, Moon MH, Breaker RR. Employing a ZTP Riboswitch to Detect Bacterial Folate Biosynthesis Inhibitors in a Small Molecule High-Throughput Screen. ACS Chem Biol 2019; 14:2841-2850. [PMID: 31609568 DOI: 10.1021/acschembio.9b00713] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Various riboswitch classes are being discovered that precisely monitor the status of important biological processes, including metabolic pathway function, signaling for physiological adaptations, and responses to toxic agents. Biochemical components for some of these processes might make excellent targets for the development of novel antibacterial molecules, which can be broadly sought by using phenotypic drug discovery (PDD) methods. However, PDD data do not normally provide clues regarding the target for each hit compound. We have developed and validated a robust fluorescent reporter system based on a ZTP riboswitch that identifies numerous folate biosynthesis inhibitors with high sensitivity and precision. The utility of the riboswitch-based PDD strategy was evaluated using Escherichia coli bacteria by conducting a 128 310-compound high-throughput screen, which identified 78 sulfanilamide derivatives among the many initial hits. Similarly, representatives of other riboswitch classes could be employed to rapidly match antibacterial hits with the biological processes they target.
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Affiliation(s)
- Kevin R. Perkins
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520-8103, United States
| | - Ruben M. Atilho
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520-8103, United States
| | - Michelle H. Moon
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8103, United States
| | - Ronald R. Breaker
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520-8103, United States
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520-8103, United States
- Howard Hughes Medical Institute, Yale University, New Haven, Connecticut 06520-8103, United States
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10
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Asadi Z, Nasrollahi N, Golchin M. A water-soluble metal–organic coordination polymer of Zn(II) Schiff base complex in interaction with DNA: diagnosing the mode of binding by in vitro studies. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01716-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Pawar SK, Jaldappagari S. Intercalation of a flavonoid, silibinin into DNA base pairs: Experimental and theoretical approach. J Mol Recognit 2019; 33:e2812. [DOI: 10.1002/jmr.2812] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/13/2019] [Accepted: 08/14/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Suma K. Pawar
- Department of ChemistryKarnatak University Dharwad India
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12
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Huang S, Cheng L, Yang J, Hu Y. Comparative study of two cephalosporin antibiotics binding to calf thymus DNA by multispectroscopy, electrochemistry, and molecular docking. LUMINESCENCE 2019; 35:52-61. [DOI: 10.1002/bio.3696] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/12/2019] [Accepted: 07/25/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Sheng‐Chao Huang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical EngineeringHubei Normal University Huangshi China
| | - Li‐Yang Cheng
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical EngineeringHubei Normal University Huangshi China
| | - Jing Yang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical EngineeringHubei Normal University Huangshi China
| | - Yan‐Jun Hu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical EngineeringHubei Normal University Huangshi China
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13
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Oliveira R, Amaro F, Azevedo M, Vale N, Gonçalves H, Antunes C, Rego R. New voltammetric and spectroscopic studies to quinacrine-DNA-Cdots interaction. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Chakraborty A, Panda AK, Ghosh R, Roy I, Biswas A. Depicting the DNA binding and photo-nuclease ability of anti-mycobacterial drug rifampicin: A biophysical and molecular docking perspective. Int J Biol Macromol 2019; 127:187-196. [DOI: 10.1016/j.ijbiomac.2019.01.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/25/2018] [Accepted: 01/06/2019] [Indexed: 12/13/2022]
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15
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Moradi SZ, Nowroozi A, Sadrjavadi K, Moradi S, Mansouri K, Hosseinzadeh L, Shahlaei M. Direct evidences for the groove binding of the Clomifene to double stranded DNA. Int J Biol Macromol 2018; 114:40-53. [PMID: 29555513 DOI: 10.1016/j.ijbiomac.2018.03.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 02/10/2018] [Accepted: 03/09/2018] [Indexed: 12/25/2022]
Abstract
It has been reported that the antiestrogen Tamoxifen induces liver tumors in rats and genotoxic effects in vitro through DNA interaction. So, it can be proposed that its structural analogue, Clomifene, also can bind to DNA. To test this hypothesis, the DNA binding properties of Clomifene have been studied by absorption spectroscopy, fluorescence spectroscopy, cellular uptake, cell viability, cell proliferation and molecular modeling techniques. Evidences are provided that Clomifene could interact with DNA via minor groove interaction mode. The negative ΔG value implied that the interaction occurred between DNA and Clomifene spontaneously. Also, the positive ΔH and positive ΔS values indicated that the binding of Clomifene with DNA is mainly entropy driven and the enthalpy is unfavorable parameter. This also suggests that the hydrophobic interaction plays a major role in the binding with overall binding constant of K=5.645×107M-1 at 298K. From the results of docking, it can be concluded that Hydrogen bonds is also one of the most important interactions. The increase in entropy of system after binding might be due to the destruction of the DNA structure.
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Affiliation(s)
| | - Amin Nowroozi
- Pharmaceutical Sciences Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Komail Sadrjavadi
- Pharmaceutical Sciences Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sajad Moradi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kamran Mansouri
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Leila Hosseinzadeh
- Pharmaceutical Sciences Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohsen Shahlaei
- Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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16
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Salehzadeh S, Hajibabaei F, Moghadam NH, Sharifinia S, Khazalpour S, Golbedaghi R. Binding Studies of Isoxsuprine Hydrochloride to Calf Thymus DNA Using Multispectroscopic and Molecular Docking Techniques. J Fluoresc 2017; 28:195-206. [DOI: 10.1007/s10895-017-2182-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 10/02/2017] [Indexed: 10/18/2022]
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17
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Groove Binding of Vanillin and Ethyl Vanillin to Calf Thymus DNA. J Fluoresc 2017; 27:1815-1828. [DOI: 10.1007/s10895-017-2119-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 05/14/2017] [Indexed: 10/19/2022]
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18
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Asadi Z, Nasrollahi N, Karbalaei-Heidari H, Eigner V, Dusek M, Mobaraki N, Pournejati R. Investigation of the complex structure, comparative DNA-binding and DNA cleavage of two water-soluble mono-nuclear lanthanum(III) complexes and cytotoxic activity of chitosan-coated magnetic nanoparticles as drug delivery for the complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 178:125-135. [PMID: 28178588 DOI: 10.1016/j.saa.2017.01.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/11/2017] [Accepted: 01/18/2017] [Indexed: 06/06/2023]
Abstract
Two water-soluble mono-nuclear macrocyclic lanthanum(III) complexes of 2,6-diformyl-4-methylphenol with 1,3-diamino-2-propanol (C1) or 1,3-propylenediamine (C2) were synthesized and characterized by UV-Vis, FT-IR, 13C and 1H NMR spectroscopy and elemental analysis. C1 complex was structurally characterized by single-crystal X-ray diffraction, which revealed that the complex was mononuclear and ten-coordinated. The coordination sites around lanthanum(III) were occupied with a five-dentate ligand, two bidentate nitrates, and one water molecule. The interaction of complexes with DNA was studied in buffered aqueous solution at pH7.4. UV-Vis absorption spectroscopy, emission spectroscopy, circular dichroism (CD) and viscometric measurements provided clear evidence of the intercalation mechanism of binding. The obtained intrinsic binding constants (Kb) 9.3×103 and 1.2×103M-1 for C1 and C2, respectively confirmed that C1 is better intercalator than C2. The DNA docking studies suggested that the complexes bind with DNA in a groove binding mode with the binding affinity of C1>C2. Moreover, agarose gel electrophoresis study of the DNA-complex for both compounds revealed that the C1 intercalation cause ethidium bromide replacement in a competitive manner which confirms the suggested mechanism of binding. Finally, the anticancer experiments for the treated cancerous cell lines with both synthesized compounds show that these hydrophilic molecules need a suitable carrier to pass through the hydrophobic nature of cell membrane efficiently.
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Affiliation(s)
- Zahra Asadi
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran.
| | - Neda Nasrollahi
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Hamidreza Karbalaei-Heidari
- Molecular Biotechnology Laboratory, Department of Biology, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Vaclav Eigner
- Institute of Physics ASCR, v.v.i, Na Slovance 2, Praha 821182, Czech Republic
| | - Michal Dusek
- Institute of Physics ASCR, v.v.i, Na Slovance 2, Praha 821182, Czech Republic
| | - Nabiallah Mobaraki
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Roya Pournejati
- Molecular Biotechnology Laboratory, Department of Biology, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
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Cardoso JMS, Correia I, Galvão AM, Marques F, Carvalho MFNN. Synthesis of Ag(I) camphor sulphonylimine complexes and assessment of their cytotoxic properties against cisplatin-resistant A2780cisR and A2780 cell lines. J Inorg Biochem 2016; 166:55-63. [PMID: 27835775 DOI: 10.1016/j.jinorgbio.2016.11.003] [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: 06/28/2016] [Revised: 10/10/2016] [Accepted: 11/03/2016] [Indexed: 12/24/2022]
Abstract
Camphorsulphonylimine complexes [Ag(NO3)(IL)2] (IL=C12H19N3SO2, 1) and [(AgNO3)2(IIL)] (IIL=C22H23N3SO2, 2) were synthesized and characterized by elemental analysis, spectroscopy (IR, NMR) and cyclic voltammetry. [Ag(NO3)(IL)2] crystalizes in the monoclinic C2 space group with a triangular geometry assuming a chalice-type shape. The anti-proliferative properties of the new complexes 1 and 2 and those of the previously reported [Ag(NO3)(IIIL)] (IIIL=C16H18N3SO2, 3) were assessed against the human ovarian cancer cells (cisplatin-sensitive A2780, cisplatin-resistant A2780cisR) and the non-tumoral human HEK 293 cell line, using the MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay. The NR (3-amino-7-dimethylamino-2-methylphenazine hydrochloride) assay was alternatively used to assess the cytotoxicity on the A2780 cells. Results from the MTT assay (48h exposure) show that the complexes display IC50 values lower (by at least one order of magnitude) than cisplatin, while the cytotoxicity of AgNO3 is of the same order of cisplatin. The camphorsulphonylimine ligands display irrelevant (IL, IIIL) or no cytotoxicity (IIL). The highest cytotoxicity (lower IC50) was found for [(AgNO3)2(IIL)]. The binding ability of the complexes to calf thymus-deoxyribonucleic acid (CT-DNA) was studied by fluorescence. Constants (Ksv, Ka) and the number (n) of binding centres to DNA were calculated showing that DNA intercalation possibly occurs in the cases of complexes 2 and 3, while a more complicated process operates for 1. As expected from the cytotoxicity, [(AgNO3)2(IIL)] displays the highest binding affinity (Ka=1.61×105 M-1). No binding to DNA was detected for AgNO3 or IIL under the experimental conditions used. The binding trend to CT-DNA found by fluorescence was corroborated by cyclic voltammetry.
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Affiliation(s)
- João M S Cardoso
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1049-001, Lisboa, Portugal
| | - Isabel Correia
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1049-001, Lisboa, Portugal
| | - Adelino M Galvão
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1049-001, Lisboa, Portugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares (C(2)TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 (km 139,7), 2695-066 Bobadela LRS, Portugal
| | - M Fernanda N N Carvalho
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1049-001, Lisboa, Portugal.
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Existence of hydroxylated MWCNTs demotes the catalysis effect of amylases against starch degradation. Int J Biol Macromol 2016; 86:250-61. [PMID: 26812109 DOI: 10.1016/j.ijbiomac.2016.01.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 11/22/2022]
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