1
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Soliman AM, El-Sagheir AMK, Thabet MM, Abdel Hakiem AF, Aboraia AS. Synthesis, characterization, molecular modeling studies, and biological evaluation of metal piroxicam complexes (M = Ni(II), Pt(IV), Pd(II), Ag(I)) as antibacterial and anticancer agents. Drug Dev Res 2024; 85:e22156. [PMID: 38355931 DOI: 10.1002/ddr.22156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/01/2024] [Accepted: 01/22/2024] [Indexed: 02/16/2024]
Abstract
Four piroxicam metal complexes; NiL2 , PtL2 , PdL2 , and AgL were synthesized and characterized by different techniques with enhanced antibacterial and anticancer activity. Regarding in vitro antimicrobial activity, complex NiL2 displayed potent antibacterial effect against Escherichia coli and Pseudomonas aeruginosa that was 1.9-folds higher than piroxicam (minimum inhibitory concentration [MIC] = 31.85, 65.32 µM), respectively. In case of G+ve bacteria, complex PtL2 had potent activity on Staphylococcus aureus which was 2.1-folds higher than piroxicam (MIC = 43.12 µM), while activity of complex AgL against Enterococcus faecalis was threefolds higher than piroxicam (MIC = 74.57 µM. Complexes PtL2 and PdL2 exhibited higher inhibition of DNA gyrase than piroxicam (IC50 = 6.21 µM) in the range of 1.9-1.7-folds. The in vitro antiproliferative activity depicted that all investigated complexes showed better cytotoxic effect than piroxicam, specifically Pt and Pd complexes which had lower IC50 values than piroxicam on human liver cancer cell line HepG2 by 1.8 and 1.7-folds, respectively. While Pd and Ag complexes showed 2 and 1.6-folds better effect on human colon cancer cell line HT-29 compared with piroxicam. Molecular modeling studies including docking on Stranded DNA Duplex (1juu) and DNA gyrase enzyme (1kzn) that gave good insight about interaction of complexes with target molecules, calculation of electrostatic potential map and global reactivity descriptors were performed.
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Affiliation(s)
- Aya M Soliman
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Ahmed M K El-Sagheir
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Momen M Thabet
- Department of Microbiology and Immunology, Faculty of Pharmacy, South Valley University, Qena, Egypt
| | | | - Ahmed S Aboraia
- Department of Medicinal Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
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2
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Romanovska A, Schmidt M, Brandt V, Tophoven J, Tiller JC. Controlling the function of bioactive worm micelles by enzyme-cleavable non-covalent inter-assembly cross-linking. J Control Release 2024; 368:15-23. [PMID: 38346504 DOI: 10.1016/j.jconrel.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
Drugs that form self-assembled supramolecular structures to be most-active is a promising way of creating new highly specific and active pharmaceuticals. Controlling the activity of bioactive supramolecular structures such as drug-loaded micelles is possible by both core/shell and inter-assembly cross-linking. However, if the flexibility of the assembly is mandatory for the activity cross-linking is not feasible. Thus, such structures cannot be manipulated in their activity. The present study demonstrates a novel concept to control the activity of not drug-releasing, non-cross-linked bioactive superstructures. This is achieved by formation of nanostructured nanoparticles derived by non-covalent inter-assembly cross-linking of the superstructures. This is shown on the example of amphiphilic diblock-copolymers conjugated with the antibiotic ciprofloxacin (CIP). These polymer-antibiotic conjugates form worm micelles, which greatly activate the conjugated antibiotic without releasing it. Non-covalent inter-assembly cross-linking of these CIP-worm-micelles with amphiphilic triblock copolymers terminated with lipase-cleavable esters leads to nanostructured nanoparticles that resemble cross-linked worm micelles and show an up to 135-fold lower activity than the free worm micelles. The activity of the worm-micelles can be fully recovered by cleaving the end groups of the polymeric cross-linker with lipase.
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Affiliation(s)
- Alina Romanovska
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Martin Schmidt
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Volker Brandt
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Jonas Tophoven
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Joerg C Tiller
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany.
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3
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Kamal El-sagheir A, Abdelmesseh Nekhala I, Abd El-Gaber MK, Aboraia AS, Persson J, Schäfer AB, Wenzel M, Omar FA. N4-Substituted Piperazinyl Norfloxacin Derivatives with Broad-Spectrum Activity and Multiple Mechanisms on Gyrase, Topoisomerase IV, and Bacterial Cell Wall Synthesis. ACS BIO & MED CHEM AU 2023; 3:494-506. [PMID: 38144255 PMCID: PMC10739246 DOI: 10.1021/acsbiomedchemau.3c00038] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/23/2023] [Accepted: 08/23/2023] [Indexed: 12/26/2023]
Abstract
Fluoroquinolones are an important class of antibiotics with broad-spectrum antibacterial and antitubercular activity. Here, we describe the design and synthesis of a series of 38 N4-substituted piperazinyl norfloxacin derivatives. Their activity and mechanism of action were characterized using in silico, in vitro, and in vivo approaches. Several compounds displayed interesting activities against both Gram-negative and Gram-positive bacteria, and few displayed antimycobacterial activity, whereby some were as potent as norfloxacin and ciprofloxacin. Molecular docking experiments suggested that the new derivatives inhibit both DNA gyrase and DNA topoisomerase IV in a similar manner as norfloxacin. Selecting the most promising candidates for experimental mode of action analysis, we confirmed DNA gyrase and topoisomerase IV as targets of all tested compounds using enzymatic in vitro assays. Phenotypic analysis of both Escherichia coli and Bacillus subtilis confirmed a typical gyrase inhibition phenotype for all of the tested compounds. Assessment of possible additional targets revealed three compounds with unique effects on the B. subtilis cell wall synthesis machinery, suggesting that they may have an additional target in this pathway. Comparison with known cell wall synthesis inhibitors showed that the new compounds elicit a distinct and, so far, unique phenotype, suggesting that they act differently from known cell wall synthesis inhibitors. Interestingly, our phenotypic analysis revealed that both norfloxacin and ciprofloxacin displayed additional cellular effects as well, which may be indicative of the so far unknown additional mechanisms of fluoroquinolones.
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Affiliation(s)
| | - Ireny Abdelmesseh Nekhala
- Division
of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, 412 96 Gothenburg, Sweden
| | | | - Ahmed S. Aboraia
- Medicinal
Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Jonatan Persson
- Division
of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, 412 96 Gothenburg, Sweden
- Center
for Antibiotic Resistance Research in Gothenburg (CARe), 405 30 Gothenburg, Sweden
| | - Ann-Britt Schäfer
- Division
of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, 412 96 Gothenburg, Sweden
- Center
for Antibiotic Resistance Research in Gothenburg (CARe), 405 30 Gothenburg, Sweden
| | - Michaela Wenzel
- Division
of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, 412 96 Gothenburg, Sweden
- Center
for Antibiotic Resistance Research in Gothenburg (CARe), 405 30 Gothenburg, Sweden
| | - Farghaly A. Omar
- Medicinal
Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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4
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Kanth S, Malgar Puttaiahgowda Y, Gupta S, T S. Recent advancements and perspective of ciprofloxacin-based antimicrobial polymers. JOURNAL OF BIOMATERIALS SCIENCE, POLYMER EDITION 2022; 34:918-949. [PMID: 36346071 DOI: 10.1080/09205063.2022.2145872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In recent years, microbial pathogens, which are major sources of infections, have become a widespread concern across the world. The number of deaths caused by infectious diseases is continually rising, according to World Health Organization records. Antimicrobial resistance, particularly resistance to several drugs, is steadily growing in percentages of organisms. Ciprofloxacin is a second-generation fluoroquinolone with significant antimicrobial activity and pharmacokinetic characteristics. According to studies, many bacteria are resistant to the antibiotic ciprofloxacin. In this article, we look into polymers as ciprofloxacin macromolecular carriers with a wide range of antibacterial activity. We also discuss the latter form of coupling, in which ciprofloxacin and polymers are covalently bonded. This article also discusses the use of antimicrobial polymers in combination with ciprofloxacin in a various sectors. The current review article provides an overview of publications in the last five years on polymer loaded or modified with ciprofloxacin having applications in numerous sectors.
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Affiliation(s)
- Shreya Kanth
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Yashoda Malgar Puttaiahgowda
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sonali Gupta
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Swathi T
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
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5
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Romanovska A, Keil J, Tophoven J, Oruc MF, Schmidt M, Breisch M, Sengstock C, Weidlich D, Klostermeier D, Tiller JC. Conjugates of Ciprofloxacin and Amphiphilic Block Copoly(2-alkyl-2-oxazolines)s Overcome Efflux Pumps and Are Active against CIP-Resistant Bacteria. Mol Pharm 2021; 18:3532-3543. [PMID: 34323492 DOI: 10.1021/acs.molpharmaceut.1c00430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Conjugation of antibiotics with polymers is an emerging strategy to improve the performance of these important drugs. Here, the antibiotic ciprofloxacin (CIP) was conjugated with amphiphilic poly(2-oxazoline) (POx) block copolymers to investigate whether the activity of the antibiotic was enhanced due to additionally induced membrane activity. The resulting polymer-antibiotic conjugates (PACs) are an order of magnitude more active against the bacterial strain Staphylococcus aureus than CIP and show high activities against numerous pathogenic bacterial strains. Their high activity depends on an optimal hydrophobic/hydrophilic balance (HHB) of the POx tail. Mechanistic studies revealed that the derivatization of CIP required for the polymer conjugation lowers the affinity of the antibiotic to its target topoisomerase IV. However, the amphiphilic PACs are most likely concentrated within the bacterial cytoplasm, which overcompensates the loss of affinity and results in high antibacterial activity. In addition, the development of resistance in S. aureus and Escherichia coli is slowed down. More importantly, the amphiphilic PACs are active against CIP-resistant S. aureus and E. coli. The PACs with the highest activity are not cytotoxic toward human stem cells and do not lyse blood cells in saturated solution.
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Affiliation(s)
- Alina Romanovska
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany
| | - Johanna Keil
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany
| | - Jonas Tophoven
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany
| | - Murat Furkan Oruc
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany
| | - Martin Schmidt
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany
| | - Marina Breisch
- BG University Hospital Bergmannsheil Bochum/Surgical Research, Ruhr University Bochum, Buerkle-de-la-Camp-Platz 1, D-44789 Bochum, Germany
| | - Christina Sengstock
- BG University Hospital Bergmannsheil Bochum/Surgical Research, Ruhr University Bochum, Buerkle-de-la-Camp-Platz 1, D-44789 Bochum, Germany
| | - Daniela Weidlich
- Institute for Physical Chemistry, University of Muenster, Corrensstrasse 30, 48149 Muenster, Germany
| | - Dagmar Klostermeier
- Institute for Physical Chemistry, University of Muenster, Corrensstrasse 30, 48149 Muenster, Germany
| | - Joerg C Tiller
- Biomaterials and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany
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6
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Tudó G, Lopez-Gavin A, Portell-Buj E, Freixes J, Vila J, Roman A, Monté MR, Gonzalez-Martin J. In Vitro Activity of a Novel Quinolone, UB-8902, Against Ofloxacin-Resistant Mycobacterium tuberculosis Isolates. Microb Drug Resist 2020; 26:1019-1022. [PMID: 32159449 DOI: 10.1089/mdr.2019.0367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The main objective of this study was to compare in vitro activities of a novel fluoroquinolone (FQ), UB-8902, with ofloxacin (OFX), levofloxacin (LFX), and moxifloxacin (MOX) against Mycobacterium tuberculosis isolates. Eleven OFX-resistant and 11 drug-susceptible clinical isolates were studied. Individual minimum inhibitory concentrations of OFX, LFX, MOX, and UB-8902 were determined using Middlebrook 7H11 agar. The concentrations studied ranged from 0.125 to 128 μg/mL in twofold dilutions. UB-8902 was more active than LFX and similar to MOX for OFX-resistant M. tuberculosis isolates. In addition, UB-8902 and MOX showed equal activity against drug-susceptible isolates, both being more active than OFX and LFX. In conclusion, the new FQ, UB-8902, showed good activity against OFX-resistant isolates. Moreover, it showed better activity than OFX and LFX and was equivalent to MOX against FQ-susceptible clinical isolates. UB-8902 can be considered as a drug with potential antituberculous activity, similar to MOX.
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Affiliation(s)
- Griselda Tudó
- Microbiology Department, CDB, Hospital Clinic-Barcelona Institute of Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | - Alexandre Lopez-Gavin
- Microbiology Department, CDB, Hospital Clinic-Barcelona Institute of Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | - Elena Portell-Buj
- Microbiology Department, CDB, Hospital Clinic-Barcelona Institute of Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | - Joan Freixes
- Cenavisa Plc Laboratories, Reus, Tarragona, Spain
| | - Jordi Vila
- Microbiology Department, CDB, Hospital Clinic-Barcelona Institute of Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | - Angely Roman
- Microbiology Department, CDB, Hospital Clinic-Barcelona Institute of Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | - Maria Rosa Monté
- Microbiology Department, CDB, Hospital Clinic-Barcelona Institute of Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
| | - Julian Gonzalez-Martin
- Microbiology Department, CDB, Hospital Clinic-Barcelona Institute of Global Health (ISGlobal), University of Barcelona, Barcelona, Spain
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7
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Mukherjee I, Ghosh A, Bhadury P, De P. Matrix assisted antibacterial activity of polymer conjugates with pendant antibiotics, and bioactive and biopassive moieties. J Mater Chem B 2019. [DOI: 10.1039/c9tb00328b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report the comparative antibacterial activity of a polymer–antibiotic conjugate with coupled bioactive (cationic) and biopassive (zwitterionic) functionalities against several biofilm and nonbiofilm forming bacterial species in both liquid and solid matrices.
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Affiliation(s)
| | - Anwesha Ghosh
- Integrative Taxonomy and Microbial Ecology Research Group
- Department of Biological Sciences
- India
| | - Punyasloke Bhadury
- Integrative Taxonomy and Microbial Ecology Research Group
- Department of Biological Sciences
- India
- Centre for Advanced Functional Materials
- Indian Institute of Science Education and Research Kolkata
| | - Priyadarsi De
- Polymer Research Centre
- Department of Chemical Sciences
- India
- Centre for Advanced Functional Materials
- Indian Institute of Science Education and Research Kolkata
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8
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Mukherjee I, Ghosh A, Bhadury P, De P. Matrix-Assisted Regulation of Antimicrobial Properties: Mechanistic Elucidation with Ciprofloxacin-Based Polymeric Hydrogel Against Vibrio Species. Bioconjug Chem 2018; 30:218-230. [DOI: 10.1021/acs.bioconjchem.8b00846] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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9
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Gao F, Wang P, Yang H, Miao Q, Ma L, Lu G. Recent developments of quinolone-based derivatives and their activities against Escherichia coli. Eur J Med Chem 2018; 157:1223-1248. [DOI: 10.1016/j.ejmech.2018.08.095] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 12/14/2022]
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10
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Schmidt M, Romanovska A, Wolf Y, Nguyen TD, Krupp A, Tumbrink HL, Lategahn J, Volmer J, Rauh D, Luetz S, Krumm C, Tiller JC. Insights into the Kinetics of the Resistance Formation of Bacteria against Ciprofloxacin Poly(2-methyl-2-oxazoline) Conjugates. Bioconjug Chem 2018; 29:2671-2678. [PMID: 29927244 DOI: 10.1021/acs.bioconjchem.8b00361] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The influence on the resistance formation of polymers attached to antibiotics has rarely been investigated. In this study, ciprofloxacin (CIP) was conjugated to poly(2-methyl-2-oxazoline)s with an ethylene diamine end group (Me-PMOx28-EDA) via two different spacers (CIP modified with α,α'-dichloro- p-xylene-xCIP, CIP modified with chloroacetyl chloride-eCIP). The antibacterial activity of the conjugates against a number of bacterial strains shows a great dependence on the nature of the spacer. The Me-PMOx39-EDA-eCIP, containing a potentially cleavable linker, does not exhibit a molecular weight dependence on antibacterial activity in contrast to Me-PMOx27-EDA-xCIP. The resistance formation of both conjugates against Staphylococcus aureus and Escherichia coli was investigated. Both conjugates showed the potential to significantly delay the formation of resistant bacteria compared to the unmodified CIP. Closer inspection of a possible resistance mechanism by genome sequencing of the topoisomerase IV region of resistant S. aureus revealed that this bacterium mutates at the same position when building up resistance to CIP and to Me-PMOx27-EDA-xCIP. However, the S. aureus cells that became resistant against the polymer conjugate are fully susceptible to CIP. Thus, conjugation of CIP with PMOx seems to alter the resistance mechanism.
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Affiliation(s)
| | | | | | | | | | - Hannah L Tumbrink
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Strasse 4a , 44227 Dortmund , Germany
| | - Jonas Lategahn
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Strasse 4a , 44227 Dortmund , Germany
| | | | - Daniel Rauh
- Faculty of Chemistry and Chemical Biology , TU Dortmund University , Otto-Hahn-Strasse 4a , 44227 Dortmund , Germany
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11
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Cannalire R, Tiecco M, Cecchetti V, Germani R, Manfroni G. Advantageous Use of Ionic Liquids for the Synthesis of Pharmaceutically Relevant Quinolones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Rolando Cannalire
- Dipartimento di Scienze Farmaceutiche; Università degli Studi di Perugia; Via del Liceo 1-06123 Perugia Italy
| | - Matteo Tiecco
- Dipartimento di Chimica; Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italy
| | - Violetta Cecchetti
- Dipartimento di Scienze Farmaceutiche; Università degli Studi di Perugia; Via del Liceo 1-06123 Perugia Italy
| | - Raimondo Germani
- Dipartimento di Chimica; Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italy
| | - Giuseppe Manfroni
- Dipartimento di Scienze Farmaceutiche; Università degli Studi di Perugia; Via del Liceo 1-06123 Perugia Italy
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López-Gavín A, Tudó G, Vergara A, Hurtado JC, Gonzalez-Martín J. In vitro activity against Mycobacterium tuberculosis of levofloxacin, moxifloxacin and UB-8902 in combination with clofazimine and pretomanid. Int J Antimicrob Agents 2015; 46:582-5. [DOI: 10.1016/j.ijantimicag.2015.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/16/2015] [Accepted: 08/04/2015] [Indexed: 10/23/2022]
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13
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Schmidt M, Harmuth S, Barth ER, Wurm E, Fobbe R, Sickmann A, Krumm C, Tiller JC. Conjugation of Ciprofloxacin with Poly(2-oxazoline)s and Polyethylene Glycol via End Groups. Bioconjug Chem 2015; 26:1950-62. [DOI: 10.1021/acs.bioconjchem.5b00393] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Martin Schmidt
- Biomaterials
and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Simon Harmuth
- Biomaterials
and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Eva Rebecca Barth
- Biomaterials
and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Elena Wurm
- Biomaterials
and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Rita Fobbe
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., Otto Hahn-Straße 6b, 44227 Dortmund, Germany
| | - Albert Sickmann
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., Otto Hahn-Straße 6b, 44227 Dortmund, Germany
| | - Christian Krumm
- Biomaterials
and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Joerg C. Tiller
- Biomaterials
and Polymer Science, Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 66, 44227 Dortmund, Germany
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14
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Functional Imaging in Diagnostic of Orthopedic Implant-Associated Infections. Diagnostics (Basel) 2013; 3:356-71. [PMID: 26824928 PMCID: PMC4665528 DOI: 10.3390/diagnostics3040356] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/10/2013] [Accepted: 09/22/2013] [Indexed: 12/11/2022] Open
Abstract
Surgeries’ sterile conditions and perioperative antibiotic therapies decrease implant associated infections rates significantly. However, up to 10% of orthopedic devices still fail due to infections. An implant infection generates a high socio-economic burden. An early diagnosis of an infection would significantly improve patients’ outcomes. There are numerous clinical tests to diagnose infections. The “Gold Standard” is a microbiological culture, which requires an invasive sampling and lasts up to several weeks. None of the existing tests in clinics alone is sufficient for a conclusive diagnosis of an infection. Meanwhile, there are functional imaging modalities, which hold the promise of a non-invasive, quick, and specific infection diagnostic. This review focuses on orthopedic implant-associated infections, their pathogenicity, diagnosis and functional imaging.
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Osman R, Kan PL, Awad G, Mortada N, EL-Shamy AE, Alpar O. Spray dried inhalable ciprofloxacin powder with improved aerosolisation and antimicrobial activity. Int J Pharm 2013; 449:44-58. [DOI: 10.1016/j.ijpharm.2013.04.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Revised: 03/20/2013] [Accepted: 04/07/2013] [Indexed: 01/31/2023]
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16
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Abstract
Ciprofloxacin (CP) is a fluoroquinolone that is highly active against diverse microorganisms. At concentrations less than 1 µg/ml it is active against a diverse types of bacteria, including Staphylococcus aureus, Staphylococcus epidermidis, Bacillius subtilius, Escherichia coli and Mycobacterium tuberculosis. In addition, it has shown to be effective against other diseases such as malaria, cancer and AIDS. The extended antimicrobial activity, lack of plasmid-mediated resistance, large volume of distribution and minimal adverse effects of CP are therapeutically advantageous. In the pursuit of increasing their effectiveness against these diseases and prevent unwanted resistance, researchers have begun to synthesize a class of organic, inorganic and organometallic derivatives, which have displayed interesting activities. This review describes the development and recent advances on the evaluation of CP and its derivatives as a new class of drugs with potential for clinical development.
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Vila J, Pachón J. Therapeutic options forAcinetobacter baumanniiinfections: an update. Expert Opin Pharmacother 2012; 13:2319-36. [DOI: 10.1517/14656566.2012.729820] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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18
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Outstanding effect of the conformational restriction of isoquinolines: hints for the development of optimized antimicrobial agents. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0808-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Roca I, Espinal P, Vila-Farrés X, Vila J. The Acinetobacter baumannii Oxymoron: Commensal Hospital Dweller Turned Pan-Drug-Resistant Menace. Front Microbiol 2012; 3:148. [PMID: 22536199 PMCID: PMC3333477 DOI: 10.3389/fmicb.2012.00148] [Citation(s) in RCA: 243] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Accepted: 03/28/2012] [Indexed: 12/28/2022] Open
Abstract
During the past few decades Acinetobacter baumannii has evolved from being a commensal dweller of health-care facilities to constitute one of the most annoying pathogens responsible for hospitalary outbreaks and it is currently considered one of the most important nosocomial pathogens. In a prevalence study of infections in intensive care units conducted among 75 countries of the five continents, this microorganism was found to be the fifth most common pathogen. Two main features contribute to the success of A. baumannii: (i) A. baumannii exhibits an outstanding ability to accumulate a great variety of resistance mechanisms acquired by different mechanisms, either mutations or acquisition of genetic elements such as plasmids, integrons, transposons, or resistant islands, making this microorganism multi- or pan-drug-resistant and (ii) The ability to survive in the environment during prolonged periods of time which, combined with its innate resistance to desiccation and disinfectants, makes A. baumannii almost impossible to eradicate from the clinical setting. In addition, its ability to produce biofilm greatly contributes to both persistence and resistance. In this review, the pathogenesis of the infections caused by this microorganism as well as the molecular bases of antibacterial resistance and clinical aspects such as treatment and potential future therapeutic strategies are discussed in depth.
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Affiliation(s)
- Ignasi Roca
- Department of Clinical Microbiology, School of Medicine, IDIBAPS and Barcelona Centre for International Health Research, Hospital Clínic-Universitat de Barcelona Barcelona, Spain
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López-Rojas R, Sánchez-Céspedes J, Docobo-Pérez F, Domínguez-Herrera J, Vila J, Pachón J. Pre-clinical studies of a new quinolone (UB-8902) against Acinetobacter baumannii resistant to ciprofloxacin. Int J Antimicrob Agents 2011; 38:355-9. [DOI: 10.1016/j.ijantimicag.2011.06.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 06/02/2011] [Accepted: 06/07/2011] [Indexed: 10/17/2022]
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Ballesta S, García I, Sánchez-Céspedez J, Vila J, Pascual A. Intracellular penetration and activity of UB-8902 in human polymorphonuclear leukocytes. Enferm Infecc Microbiol Clin 2010; 28:612-4. [PMID: 20417992 DOI: 10.1016/j.eimc.2009.11.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 11/04/2009] [Accepted: 11/09/2009] [Indexed: 11/25/2022]
Abstract
The intracellular penetration and activity of UB-8902 in human polymorphonuclear leukocytes was evaluated. Intracellular UB-8902 concentrations were 6-fold higher than extracellular levels. Uptake was rapid, reversible, saturable, and affected by external pH. UB-8902 showed intracellular activity against Staphylococcus aureus strains presenting mutations associated with fluoroquinolone resistance in the gyrA and/or grlA genes.
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Affiliation(s)
- Sofía Ballesta
- Departmento de Microbiología, Facultad de Medicina, Universidad de Sevilla, Seville, Spain.
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Sharma PC, Jain A, Jain S, Pahwa R, Yar MS. Ciprofloxacin: review on developments in synthetic, analytical, and medicinal aspects. J Enzyme Inhib Med Chem 2010; 25:577-89. [DOI: 10.3109/14756360903373350] [Citation(s) in RCA: 131] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Ankit Jain
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra, India
| | - Sandeep Jain
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Rakesh Pahwa
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra, India
| | - Mohammad Shahar Yar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, Hamard Nagar, New Delhi, India
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Wainwright M, Shah A, Meegan K, Loughran C, Smith A, Valli N, Dempster N. Phenothiazinium-fluoroquinolone drug conjugates. Int J Antimicrob Agents 2010; 35:405-9. [PMID: 20060690 DOI: 10.1016/j.ijantimicag.2009.11.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Revised: 11/27/2009] [Accepted: 11/30/2009] [Indexed: 11/17/2022]
Abstract
Synthesis and antibacterial screening of a homologous series of 3-dialkylaminophenothiazinium-7-norfloxacin conjugates was carried out alongside a corresponding series of symmetrical methylene blue derivatives. The norfloxacin conjugates maintained typical methylene blue derivative photoproperties, such as long wavelength absorption, but produced no measurable singlet oxygen in the standard assay and provided no significant increase in the magnitude of photoantibacterial action, this being similar to the methylene blue homologues, although both the conjugates and homologues were considerably more active than methylene blue itself both against Staphylococcus aureus and Escherichia coli. DNA binding via intercalation was considerably greater for the series of norfloxacin conjugates than for the methylene blue homologues.
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Affiliation(s)
- Mark Wainwright
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK.
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Madurga S, Sánchez-Céspedes J, Belda I, Vila J, Giralt E. Mechanism of binding of fluoroquinolones to the quinolone resistance-determining region of DNA gyrase: towards an understanding of the molecular basis of quinolone resistance. Chembiochem 2009; 9:2081-6. [PMID: 18677735 DOI: 10.1002/cbic.200800041] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We have studied the bacterial resistance to fluoroquinolones that arises as a result of mutations in the DNA gyrase target protein. Although it is known that DNA gyrase is a target of quinolone antibacterial agents, the molecular details of the quinolone-gyrase interaction remain unclear. The mode of binding of ciprofloxacin, levofloxacin, and moxifloxacin to DNA gyrase was analyzed by means of docking calculations over the surface of the QRDR of GyrA. The analysis of these binding models allows study of the resistance mechanism associated with gyrA mutations more commonly found in E. coli fluoroquinolone-resistant strains at the atomic level. Asp87 was found to be critical in the binding of these fluoroquinolones because it interacts with the positively charged nitrogens in these bactericidal drugs. The role of the other most common mutations at amino acid codon Ser83 can be explained through the contacts that the side chain of this residue establishes with fluoroquinolone molecules. Finally, our results strongly suggest that, although Arg121 has never been found to be associated with fluoroquinolone resistance, this residue makes a pivotal contribution to the binding of the antibiotic to GyrA and to defining its position in the QRDR of the enzyme.
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Affiliation(s)
- Sergio Madurga
- Institute for Research in Biomedicine, Baldiri Reixac 10, 08028 Barcelona, Spain
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