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Erdoğan M, Başkan C, Serdaroğlu G. Substituted naphthoxy-phthalonitrile derivatives: Synthesis, substituent effects, DFT, TD-DFT Calculations, antimicrobial properties and DNA interaction studies. Comput Biol Chem 2023; 102:107798. [PMID: 36495747 DOI: 10.1016/j.compbiolchem.2022.107798] [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: 10/26/2022] [Revised: 11/23/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022]
Abstract
Herein, substituted-naphthol derivatives 4a-e were synthesized in two steps, namely the Diels Alder cycloaddition and Cu-catalyzed aromatization reactions, respectively. Then, pththalonitrile derivatives 7-12 have been prepared by a nucleophilic displacement reaction of 3-nitrophthalonitrile with the naphthol derivatives 4a-e, 5 and, obtained in excellent yields. Structural characterization of the compounds was identified by different spectroscopic techniques. Antimicrobial properties of the synthesized compounds were determined by the microdilution procedure against Gram-positive, Gram-negative bacteria, and yeast. Furthermore, the DNA interaction of the compounds were determined by gel electrophoresis. One of the most prominent findings is that compounds 9 and 10 have more inhibitory effects on Gram-positive bacteria than Gram-negative bacteria. These compounds especially exhibited the highest antibacterial potency against S. aureus (625 µg/mL) among Gram-positive bacteria. According to the plasmid DNA interaction results, the synthesized compounds caused changes in the structure and mobility of the plasmid DNA. Then, geometry optimizations and frequency calculations were conducted at B3LYP/6-311 G(d,p) level of DFT, and optimized structures were used for further analyses. The NBO results revealed that the π→π * and n→π * interactions were greatly contributed to lowering the stabilization energy of all compounds (7-12). FMO energy analyses showed that compound 9 has the biggest electrodonating power.
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Affiliation(s)
- Musa Erdoğan
- Department of Food Engineering, Faculty of Engineering and Architecture, Kafkas University, Kars 36100, Turkey.
| | - Ceren Başkan
- Sabuncuoğlu Şerefeddin Health Services, Vocational School, Amasya University, Amasya, Turkiye.
| | - Goncagül Serdaroğlu
- Sivas Cumhuriyet University, Faculty of Education, Math. and Sci. Edu., 58140 Sivas, Turkey.
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2
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Identification of dual-targeted Mycobacterium tuberculosis aminoacyl-tRNA synthetase inhibitors using machine learning. Future Med Chem 2022; 14:1223-1237. [PMID: 35876255 DOI: 10.4155/fmc-2022-0085] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: The most serious challenge in the treatment of tuberculosis is the multidrug resistance of Mycobacterium tuberculosis to existing antibiotics. As a strategy to overcome resistance we used a multitarget drug design approach. The purpose of the work was to discover dual-targeted inhibitors of mycobacterial LeuRS and MetRS with machine learning. Methods: The artificial neural networks were built using module nnet from R 3.6.1. The inhibitory activity of compounds toward LeuRS and MetRS was investigated in aminoacylation assays. Results: Using a machine-learning approach, we identified dual-targeted inhibitors of LeuRS and MetRS among 2-(quinolin-2-ylsulfanyl)-acetamide derivatives. The most active compound inhibits MetRS and LeuRS with IC50 values of 33 μm and 23.9 μm, respectively. Conclusion: 2-(Quinolin-2-ylsulfanyl)-acetamide scaffold can be useful for further research.
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Sethupathi M, Thulasinathan B, Sengottuvelan N, Ponnuchamy K, Perdih F, Alagarsamy A, Karthikeyan M. Macrocyclic "tet a"-Derived Cobalt(III) Complex with a N, N'-Disubstituted Hexadentate Ligand: Crystal Structure, Photonuclease Activity, and as a Photosensitizer. ACS OMEGA 2022; 7:669-682. [PMID: 35036733 PMCID: PMC8756598 DOI: 10.1021/acsomega.1c05306] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
A cobalt(III) complex, [Co(L)]Cl (complex 1, where L = 1,8-[N,N-bis{(3-formyl-2-hydroxy-5-methyl)benzyl}]-1,4,8,11-tetraaza-5,5,7,12,12,14-hexamethylcyclotetradecane) with distorted octahedral geometry has been synthesized and characterized using various spectroscopic techniques. The structure of the ligand has remarkably rich hydrogen intermolecular interactions such as H···H, H···C/C···H, and H···O/O···H that vary with the presence of the metal ion, and the structure of complex 1 has Cl···H interactions; this result has been proved by Hirshfeld surface and two-dimensional (2D) fingerprint maps analyses. The complex exhibits a quasi-reversible Co(III)/Co(II) redox couple with E 1/2 = -0.76 V. Calf thymus DNA (CT DNA) binding abilities of the ligand and complex 1 were confirmed by spectroscopic and electrochemical analyses. According to absorption studies, the ligand and complex 1 bind to CT DNA via intercalative binding mode, with intrinsic binding strengths of 1.41 × 103 and 8.64 × 103 M-1, respectively. A gel electrophoresis assay shows that complex 1 promotes the pUC19 DNA cleavage under dark and light irradiation conditions. Complex 1 has superior antimicrobial activity than the ligand. The cytotoxicity of complex 1 was tested against MDA-MB-231 breast cancer cells with values of IC50 of 1.369 μg mL-1 in the dark and 0.9034 μg mL-1 after light irradiation. Besides, cell morphological studies confirmed the morphological changes with AO/EB dual staining, reactive oxygen species (ROS) staining, mitochondria staining, and Hoechst staining on MDA-MB-231 cancer cells by fluorescence microscopy. Complex 1 was found to be a potent antiproliferative agent against MDA-MB-231 cells, and it can induce mitochondrial-mediated and caspase-dependent apoptosis with activation of downregulated caspases. The biotoxicity assay of complex 1 on the development of Artemia nauplii was evaluated at an IC50 value of 200 μg mL-1 and with excellent biocompatibility.
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Affiliation(s)
- Murugan Sethupathi
- Department
of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | | | - Nallathambi Sengottuvelan
- Department
of Industrial Chemistry, Alagappa University, Karaikudi 630003, Tamil Nadu, India
- Department
of Chemistry (DDE), Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Kumar Ponnuchamy
- Food
Chemistry and Molecular Cancer Biology Laboratory, Department of Animal
Health and Management, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Franc Perdih
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, 1000 Ljubljana, Slovenia
| | - Arun Alagarsamy
- Department
of Microbiology, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Muthusamy Karthikeyan
- Pharmacogenomics
and Computational Biology Laboratory, Department of Bioinformatics, Alagappa University, Karaikudi 630004, Tamil
Nadu, India
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Youf R, Müller M, Balasini A, Thétiot F, Müller M, Hascoët A, Jonas U, Schönherr H, Lemercier G, Montier T, Le Gall T. Antimicrobial Photodynamic Therapy: Latest Developments with a Focus on Combinatory Strategies. Pharmaceutics 2021; 13:1995. [PMID: 34959277 PMCID: PMC8705969 DOI: 10.3390/pharmaceutics13121995] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial photodynamic therapy (aPDT) has become a fundamental tool in modern therapeutics, notably due to the expanding versatility of photosensitizers (PSs) and the numerous possibilities to combine aPDT with other antimicrobial treatments to combat localized infections. After revisiting the basic principles of aPDT, this review first highlights the current state of the art of curative or preventive aPDT applications with relevant clinical trials. In addition, the most recent developments in photochemistry and photophysics as well as advanced carrier systems in the context of aPDT are provided, with a focus on the latest generations of efficient and versatile PSs and the progress towards hybrid-multicomponent systems. In particular, deeper insight into combinatory aPDT approaches is afforded, involving non-radiative or other light-based modalities. Selected aPDT perspectives are outlined, pointing out new strategies to target and treat microorganisms. Finally, the review works out the evolution of the conceptually simple PDT methodology towards a much more sophisticated, integrated, and innovative technology as an important element of potent antimicrobial strategies.
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Affiliation(s)
- Raphaëlle Youf
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Max Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Ali Balasini
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Franck Thétiot
- Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 6521, Université de Brest (UBO), CS 93837, 29238 Brest, France
| | - Mareike Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Alizé Hascoët
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Ulrich Jonas
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Holger Schönherr
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Gilles Lemercier
- Coordination Chemistry Team, Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 7312, Institut de Chimie Moléculaire de Reims (ICMR), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 2, 51687 Reims, France
| | - Tristan Montier
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
- CHRU de Brest, Service de Génétique Médicale et de Biologie de la Reproduction, Centre de Référence des Maladies Rares Maladies Neuromusculaires, 29200 Brest, France
| | - Tony Le Gall
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
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Liang J, Sun D, Yang Y, Li M, Li H, Chen L. Discovery of metal-based complexes as promising antimicrobial agents. Eur J Med Chem 2021; 224:113696. [PMID: 34274828 DOI: 10.1016/j.ejmech.2021.113696] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 01/03/2023]
Abstract
The antimicrobial resistance (AMR) is an intractable problem for the world. Metal ions are essential for the cell process and biological function in microorganisms. Many metal-based complexes with the potential for releasing ions are more likely to be absorbed for their higher lipid solubility. Hence, this review highlights the clinical potential of organometallic compounds for the treatment of infections caused by bacteria or fungi in recent five years. The common scaffolds, including antimicrobial peptides, N-heterocyclic carbenes, Schiff bases, photosensitive-grand-cycle skeleton structures, aliphatic amines-based ligands, and special metal-based complexes are summarized here. We also discuss their therapeutic targets and the risks that should be paid attention to in the future studies, aiming to provide information for researchers on metal-based complexes as antimicrobial agents and inspire the design and synthesis of new antimicrobial drugs.
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Affiliation(s)
- Jing Liang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Dejuan Sun
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yueying Yang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Mingxue Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Hua Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Lixia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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