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Antibiofilm and Antivirulence Activities of Gold and Zinc Oxide Nanoparticles Synthesized from Kimchi-Isolated Leuconostoc sp. Strain C2. Antibiotics (Basel) 2022; 11:antibiotics11111524. [PMID: 36358180 PMCID: PMC9686622 DOI: 10.3390/antibiotics11111524] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022] Open
Abstract
The rapid emergence of antimicrobial resistance (AMR) among bacterial pathogens results in antimicrobial treatment failure and the high mortality rate associated with AMR. The application of nanoparticles synthesized from probiotics will be widely accepted due to their efficacy and biocompatibility in treating microbial infections in humans. The current work sought to isolate and identify lactic acid bacteria (LAB) from Kimchi. Based on 16S rRNA gene sequencing, the LAB isolate C2 was identified as a member of the genus Leuconostoc. The obtained supernatant from Leuconostoc sp. strain C2 was employed for the green synthesis of metal (AuNPs) and metal oxide (ZnONPs) nanoparticles. UV–vis absorption spectra, FTIR analysis, XRD, DLS, FE-TEM, and EDS mapping were used to fully characterize these C2-AuNPs and C2-ZnONPs. The C2-AuNPs were found to be spherical in shape, with a size of 47.77 ± 5.7 nm and zeta potential of −19.35 ± 0.67 mV. The C2-ZnONPs were observed to be rod-shaped and 173.77 ± 14.53 nm in size. The C2-ZnONPs zeta potential was determined to be 26.62 ± 0.35 mV. The C2-AuNPs and C2-ZnONPs were shown to have antimicrobial activity against different pathogens. Furthermore, these nanoparticles inhibited the growth of Candida albicans. The antibiofilm and antivirulence properties of these NPs against Pseudomonas aeruginosa and Staphylococcus aureus were thoroughly investigated. C2-AuNPs were reported to be antibiofilm and antivirulence against P. aeruginosa, whereas C2-ZnONPs were antibiofilm and antivirulence against both P. aeruginosa and S. aureus. Furthermore, these nanoparticles disrupted the preformed mature biofilm of P. aeruginosa and S. aureus. The inhibitory impact was discovered to be concentration-dependent. The current research demonstrated that C2-AuNPs and C2-ZnONPs exhibited potential inhibitory effects on the biofilm and virulence features of bacterial pathogens. Further studies are needed to unravel the molecular mechanism behind biofilm inhibition and virulence attenuation.
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2
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Sanad SMH, Mekky AEM, Ahmed AAM. Tandem synthesis, cytotoxicity, and in silico study of new 1,3,4‐oxadiazoles as potential thymidylate synthase inhibitors. Arch Pharm (Weinheim) 2022; 355:e2200170. [DOI: 10.1002/ardp.202200170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 12/24/2022]
Affiliation(s)
| | - Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Ahmed A. M. Ahmed
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
- Common First Year Deanship Jouf University Sakaka Saudi Arabia
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3
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Oliveira AP, Ferencs M, Azevedo VO, Diniz R, Louro SR, Alves OC, Beraldo H. Physicochemical characterization of antimony(III), copper(II) and silver(I) complexes with 4-nitroimidazole-derived hydrazones. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Bonnet M, Hong CR, Wong WW, Liew LP, Shome A, Wang J, Gu Y, Stevenson RJ, Qi W, Anderson RF, Pruijn FB, Wilson WR, Jamieson SMF, Hicks KO, Hay MP. Next-Generation Hypoxic Cell Radiosensitizers: Nitroimidazole Alkylsulfonamides. J Med Chem 2018; 61:1241-1254. [PMID: 29253343 DOI: 10.1021/acs.jmedchem.7b01678] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Innovations in the field of radiotherapy such as stereotactic body radiotherapy, along with the advent of radio-immuno-oncology, herald new opportunities for classical oxygen-mimetic radiosensitizers. The role of hypoxic tumor cells in resistance to radiotherapy and in suppression of immune response continues to endorse tumor hypoxia as a bona fide, yet largely untapped, drug target. Only nimorazole is used clinically as a radiosensitizer, and there is a dearth of new radiosensitizers in development. Here we present a survey of novel nitroimidazole alkylsulfonamides and document their cytotoxicity and ability to radiosensitize anoxic tumor cells in vitro. We use a phosphate prodrug approach to increase aqueous solubility and to improve tumor drug delivery. A 2-nitroimidazole and a 5-nitroimidazole analogue demonstrated marked tumor radiosensitization in either ex vivo assays of surviving clonogens or tumor regrowth delay.
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Affiliation(s)
- Muriel Bonnet
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand
| | - Cho Rong Hong
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand
| | - Way Wua Wong
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand
| | - Lydia P Liew
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
| | - Avik Shome
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand
| | - Jingli Wang
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand
| | - Yongchuan Gu
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
| | - Ralph J Stevenson
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand
| | - Wen Qi
- School of Chemical Sciences, Faculty of Science, University of Auckland , Private Bag 92019, Auckland, New Zealand
| | - Robert F Anderson
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,School of Chemical Sciences, Faculty of Science, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
| | - Frederik B Pruijn
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
| | - William R Wilson
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
| | - Stephen M F Jamieson
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Department of Pharmacology and Clinical Pharmacology, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
| | - Kevin O Hicks
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
| | - Michael P Hay
- Auckland Cancer Society Research Centre, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland , Private Bag 92019, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland , 3 Symonds St, Auckland, New Zealand
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5
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Efficient Protocol for the Identification of Hypoxic Cell Radiosensitisers. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 899:269-90. [DOI: 10.1007/978-3-319-26666-4_16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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6
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Sangani CB, Makwana JA, Duan YT, Tarpada UP, Patel YS, Patel KB, Dave VN, Zhu HL. Design, synthesis, and antibacterial evaluation of new Schiff’s base derivatives bearing nitroimidazole and pyrazole nuclei as potent E. coli FabH inhibitors. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2018-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Qin YJ, Wang PF, Makawana JA, Wang ZC, Wang ZN, Yan-Gu, Jiang AQ, Zhu HL. Design, synthesis and biological evaluation of metronidazole-thiazole derivatives as antibacterial inhibitors. Bioorg Med Chem Lett 2014; 24:S0960-894X(14)01007-5. [PMID: 25318998 DOI: 10.1016/j.bmcl.2014.09.054] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 09/11/2014] [Accepted: 09/18/2014] [Indexed: 10/24/2022]
Abstract
A series of metronidazole-thiazole derivatives has been designed, synthesized and evaluated as potential antibacterial inhibitors. All the synthesized compounds were determined by elemental analysis, 1H NMR and MS. They were also tested for antibacterial activity against Escherichia coli, Bacillus thuringiensis, Bacillus subtilis and Pseudomonas aeruginosa as well as for the inhibition to FabH. The results showed that compound 5e exhibited the most potent inhibitory activity against E. coli FabH with IC50 of 4.9μM. Molecular modeling simulation studies were performed in order to predict the biological activity of proposed compounds. Toxicity assay of compounds 5a, 5b, 5d, 5e, 5g and 5i showed that they were noncytotoxic against human macrophage. The results revealed that these compounds offered remarkable viability.
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Affiliation(s)
- Ya-Juan Qin
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science Nanjing University, Nanjing 210093, People's Republic of China
| | - Peng-Fei Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science Nanjing University, Nanjing 210093, People's Republic of China
| | - Jigar A Makawana
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science Nanjing University, Nanjing 210093, People's Republic of China
| | - Zhong-Chang Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science Nanjing University, Nanjing 210093, People's Republic of China
| | - Ze-Nan Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science Nanjing University, Nanjing 210093, People's Republic of China
| | - Yan-Gu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science Nanjing University, Nanjing 210093, People's Republic of China
| | - Ai-Qin Jiang
- School of Medicine, Nanjing University, Nanjing 210093, People's Republic of China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science Nanjing University, Nanjing 210093, People's Republic of China.
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8
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Abe C, Uto Y, Kawasaki A, Noguchi C, Tanaka R, Yoshitomi T, Nagasaki Y, Endo Y, Hori H. Evaluation of the in vivo antioxidative activity of redox nanoparticles by using a developing chicken egg as an alternative animal model. J Control Release 2014; 182:67-72. [PMID: 24637467 DOI: 10.1016/j.jconrel.2014.03.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 03/07/2014] [Accepted: 03/09/2014] [Indexed: 01/09/2023]
Abstract
Antioxidants have been demonstrated to exert beneficial effects as pharmacotherapies for cardiovascular diseases. The in vitro systems generally employed to evaluate antioxidants, however, are limited by having no appreciable in vivo redox status of the antioxidants. Therefore, we used our developing chicken egg model to evaluate the in vivo antioxidative activity of a redox nanoparticle possessing 2,2,6,6-tetramethylpiperidine-1-oxyl (RNP(O)). The 2,2'-azobis(2-methylpropionamidine) dihydrochloride (AAPH) elicited strong oxidative stress and its LD50 value for chick embryos was 3.5±0.9mg/egg. The low molecular weight nitroxide compound, 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPOL), which is known to have the highest level of antioxidant activity, showed no significant protective effect against AAPH-induced embryo lethality. On the contrary, RNP(O) had potent protective effects against AAPH-induced embryo lethality. Moreover, RNP(O) could significantly suppress the production of lipid peroxides in chick serum induced by hydrocortisone. Since RNP(O) has a longer retention time in blood than TEMPOL, RNP(O) may protect the embryo against lethal oxidative stress by suppressing lipid peroxidation. The validity of in vivo experiments using developing chicken eggs was supported by our data, where RNP(O) was determined to elicit strong antioxidative activity in vivo, irrespective of the lack of a significant difference in the in vitro activity between low-molecular weight TEMPOL and RNP(O). Our results support the use of the developing chicken egg model to evaluate the potential in vivo antioxidative activity of RNP(O).
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Affiliation(s)
- Chiaki Abe
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
| | - Yoshihiro Uto
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan.
| | - Ayaka Kawasaki
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
| | - Chiho Noguchi
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
| | - Ryo Tanaka
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
| | - Toru Yoshitomi
- Department of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan
| | - Yukio Nagasaki
- Department of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan; Master's School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan; Satellite Laboratory, International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), University of Tsukuba, Tennoudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan
| | - Yoshio Endo
- Central Research Resource Branch, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Hitoshi Hori
- Department of Life System, Institute of Technology and Science, Graduate School, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
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9
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Zhang X, Sangani CB, Jia LX, Gong PX, Wang F, Wang JF, Zhu HL. Synthesis and antibacterial evaluation of novel Schiff's base derivatives of nitroimidazole nuclei as potent E. coli FabH inhibitors. RSC Adv 2014. [DOI: 10.1039/c4ra08567a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Series of novel Schiff's base derivatives have been synthesized. Compound 10q showed the most potent inhibitory activity (IC50 = 2.6883 μM).
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Affiliation(s)
- Xin Zhang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Chetan B. Sangani
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Li-Xin Jia
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Pi-Xian Gong
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Fang Wang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Jun-Fang Wang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093, People's Republic of China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093, People's Republic of China
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10
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Potentiating 1-(2-hydroxypropyl)-2-styryl-5-nitroimidazole derivatives against antibacterial agents: Design, synthesis and biology analysis. Eur J Med Chem 2013; 65:456-63. [DOI: 10.1016/j.ejmech.2013.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 04/03/2013] [Accepted: 05/05/2013] [Indexed: 11/24/2022]
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11
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Design, synthesis and antimicrobial activities evaluation of Schiff base derived from secnidazole derivatives as potential FabH inhibitors. Bioorg Med Chem 2013; 21:3120-6. [DOI: 10.1016/j.bmc.2013.03.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/12/2013] [Accepted: 03/18/2013] [Indexed: 11/19/2022]
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12
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Du QR, Li DD, Pi YZ, Li JR, Sun J, Fang F, Zhong WQ, Gong HB, Zhu HL. Novel 1,3,4-oxadiazole thioether derivatives targeting thymidylate synthase as dual anticancer/antimicrobial agents. Bioorg Med Chem 2013; 21:2286-2297. [DOI: 10.1016/j.bmc.2013.02.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 02/06/2013] [Accepted: 02/09/2013] [Indexed: 10/27/2022]
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13
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Li Y, Luo Y, Hu Y, Zhu DD, Zhang S, Liu ZJ, Gong HB, Zhu HL. Design, synthesis and antimicrobial activities of nitroimidazole derivatives containing 1,3,4-oxadiazole scaffold as FabH inhibitors. Bioorg Med Chem 2012; 20:4316-22. [DOI: 10.1016/j.bmc.2012.05.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 05/21/2012] [Accepted: 05/22/2012] [Indexed: 02/06/2023]
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14
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Sridevi C, Velraj G. Investigation of molecular structure, vibrational, electronic, NMR and NBO analysis of 5-chloro-1-methyl-4-nitro-1H-imidazole (CMNI) using ab initio HF and DFT calculations. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.03.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Zhang HJ, Zhu DD, Li ZL, Sun J, Zhu HL. Synthesis, molecular modeling and biological evaluation of β-ketoacyl-acyl carrier protein synthase III (FabH) as novel antibacterial agents. Bioorg Med Chem 2011; 19:4513-9. [DOI: 10.1016/j.bmc.2011.06.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 06/05/2011] [Accepted: 06/08/2011] [Indexed: 11/29/2022]
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16
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Qian Y, Zhang HJ, Zhang H, Xu C, Zhao J, Zhu HL. Synthesis, molecular modeling, and biological evaluation of cinnamic acid metronidazole ester derivatives as novel anticancer agents. Bioorg Med Chem 2010; 18:4991-6. [PMID: 20594859 DOI: 10.1016/j.bmc.2010.06.003] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2010] [Revised: 06/02/2010] [Accepted: 06/03/2010] [Indexed: 10/19/2022]
Abstract
A series of novel cinnamic acid metronidazole ester derivatives have been designed and synthesized, and their biological activities were also evaluated as potential EGFR and HER-2 kinase inhibitors. Compound 3h showed the most potent biological activity (IC50=0.62 microM for EGFR and IC50=2.15 microM for HER-2). Docking simulation was performed to position compound 3h into the EGFR active site to determine the probable binding model. Antiproliferative assay results demonstrated that some of these compounds possessed good antiproliferative activity against MCF-7. Compound 3h with potent inhibitory activity in tumor growth inhibition may be a potential anticancer agent.
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Affiliation(s)
- Yong Qian
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
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17
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Dumont F, Altmeyer A, Bischoff P. Radiosensitising agents for the radiotherapy of cancer: novel molecularly targeted approaches. Expert Opin Ther Pat 2009; 19:775-99. [PMID: 19456277 DOI: 10.1517/13543770902967666] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The efficacy of radiotherapy (RT) for cancer treatment is limited by normal tissue toxicity and by the intrinsic or acquired radioresistance of many tumours. Therefore, continuing efforts are conducted to identify radiosensitising agents that preferentially sensitise tumour cells to the cytotoxic action of RT. Recent progresses in molecular oncology have uncovered an array of novel targets, which may be exploited for RT enhancement. OBJECTIVE To survey the patent literature of the past 4 years pertaining to the development of molecularly targeted agents as potential tumour radiosensitisers. METHODS Patents were searched with a set of relevant keywords using several search engines. A Medline search on the same topics was performed in parallel. RESULTS/CONCLUSION A total of 48 patents/applications were selected. These concerned agents target molecular components of pathways involved in DNA damage repair, cell growth and survival signalling, apoptosis modulation and tumour angiogenesis. Current trials of some of these agents may reveal their value as clinical radiosensitisers.
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Affiliation(s)
- Francis Dumont
- Université de Strasbourg, Laboratoire de Radiobiologie EA-3430, Centre Régional de Lutte Contre le Cancer Paul Strauss, 3 rue de la porte de l'Hôpital, F-67065 Strasbourg, France
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Nakayama S, Uto Y, Tanimoto K, Okuno Y, Sasaki Y, Nagasawa H, Nakata E, Arai K, Momose K, Fujita T, Hashimoto T, Okamoto Y, Asakawa Y, Goto S, Hori H. TX-2152: A conformationally rigid and electron-rich diyne analogue of FTY720 with in vivo antiangiogenic activity. Bioorg Med Chem 2008; 16:7705-14. [DOI: 10.1016/j.bmc.2008.07.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Revised: 07/01/2008] [Accepted: 07/02/2008] [Indexed: 11/30/2022]
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