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Lustri WR, Lazarini SC, Simei Aquaroni NA, Resende FA, Aleixo NA, Pereira DH, Lustri BC, Moreira CG, Ribeiro CM, Pavan FR, Nakahata DH, Gonçalves AM, Nascimento-Júnior NM, Corbi PP. A new complex of silver(I) with probenecid: Synthesis, characterization, and studies of antibacterial and extended spectrum β-lactamases (ESBL) inhibition activities. J Inorg Biochem 2023; 243:112201. [PMID: 37003189 DOI: 10.1016/j.jinorgbio.2023.112201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023]
Abstract
This article describes the in vitro antibacterial and β-lactamase inhibition of a novel silver(I) complex with the sulfonamide probenecid (Ag-PROB). The formula Ag2C26H36N2O8S2·2H2O for the Ag-PROB complex was proposed based on elemental analysis. High-resolution mass spectrometric studies revealed the existence of the complex in its dimeric form. Infrared, nuclear magnetic resonance spectroscopies and Density Functional Theory calculations indicated a bidentate coordination of probenecid to the silver ions by the oxygen atoms of the carboxylate. In vitro antibacterial activities of Ag-PROB showed significant growth inhibitory activity over Mycobacterium tuberculosis, S. aureus, and P. aeruginosa PA01biofilm-producers, B. cereus, and E. coli. The Ag-PROB complex was active over multi-drug resistant of uropathogenic E. coli extended spectrum β-lactamases (ESBL) producing (EC958 and BR43), enterohemorrhagic E. coli (O157:H7) and enteroaggregative E. coli (O104:H4). Ag-PROB was able to inhibit CTX-M-15 and TEM-1B ESBL classes, at concentrations below the minimum inhibitory concentration for Ag-PROB, in the presence of ampicillin (AMP) concentration in which EC958 and BR43 bacteria were resistant in the absence of Ag-PROB. These results indicate that, in addition to ESBL inhibition, there is a synergistic antibacterial effect between AMP and the Ag-PROB. Molecular docking results revealed potential key residues involved in interactions between Ag-PROB, CTX-M-15 and TEM1B, suggesting the molecular mechanism of the ESBL inhibition. The obtained results added to the absence of mutagenic activity and low cytotoxic activity over non-tumor cell of the Ag-PROB complex open a new perspective for future in vivo tests demonstrating its potential of use as an antibacterial agent.
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Pereira GDM, Bormio Nunes JH, Cruz ÁB, Pereira DH, Buglio KE, Ruiz ALT, de Carvalho JE, Frajácomo SCL, Lustri WR, Bergamini FR, Corbi PP. Synthesis, spectroscopic characterization, antibacterial activity and antiproliferative profile of a new silver(I) complex of 5-fluorocytosine. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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3
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Aquaroni NAS, Nakahata DH, Lazarini SC, Resende FA, Cândido ALP, da Silva Barud H, Claro AM, de Carvalho JE, Ribeiro CM, Pavan FR, Lustri BC, Ribeiro TRM, Moreira CG, Cândido TZ, Lima CSP, Ruiz ALTG, Corbi PP, Lustri WR. Antibacterial activities and antiproliferative assays over a tumor cells panel of a silver complex with 4-aminobenzoic acid: Studies in vitro of sustained release using bacterial cellulose membranes as support. J Inorg Biochem 2020; 212:111247. [PMID: 32920435 DOI: 10.1016/j.jinorgbio.2020.111247] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/13/2020] [Accepted: 08/30/2020] [Indexed: 11/28/2022]
Abstract
The aims of this work were to evaluate the antibacterial and antiproliferative potential in vitro of the metal complex with 4-aminobenzoic acid (Ag-pABA) and a drug delivery system based on bacterial cellulose (BC-Ag-pABA). The Ag-pABA complex was characterized by elemental analysis, high resolution mass spectrometry and single-crystal X-ray diffraction techniques, which indicated a 1:2 metal/pABA composition plus a nitrate ion coordinated to silver by the oxygen atom, with the coordination formula [Ag (C7H7NO2)2(NO3)]. The coordination of pABA to the silver ion occurred by the nitrogen atom. The in vitro antibacterial activity of the complex evaluated by minimum inhibitory concentration assays demonstrated the effective growth inhibitory activity against Gram-positive, Gram-negative biofilm producers and acid-alcohol resistant Bacillus. The antiproliferative activities against a panel of eight tumor cells demonstrated the activity of the complex with a significant selectivity index (SI). The DNA interaction capacity and the Ames Test indicated the absence of mutagenicity. The BC-Ag-pABA composite showed an effective capacity of sustained release of Ag-pABA. The observed results validate further studies on its mechanisms of action and the conditions that mediate the in vivo biological effects using animal models to confirm its safety and effectiveness for treatment of skin and soft tissues infected by bacterial pathogens, urinary tract infections and cancer.
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Affiliation(s)
| | - Douglas H Nakahata
- University of Araraquara - UNIARA, 14801-320 Araraquara, São Paulo, Brazil
| | - Silmara C Lazarini
- University of Araraquara - UNIARA, 14801-320 Araraquara, São Paulo, Brazil
| | - Flávia A Resende
- University of Araraquara - UNIARA, 14801-320 Araraquara, São Paulo, Brazil
| | - Amanda L P Cândido
- University of Araraquara - UNIARA, 14801-320 Araraquara, São Paulo, Brazil
| | | | - Amanda Maria Claro
- University of Araraquara - UNIARA, 14801-320 Araraquara, São Paulo, Brazil
| | - João Ernesto de Carvalho
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP, 13081-970 Campinas, SP, Brazil
| | - Camila M Ribeiro
- São Paulo State University - UNESP, School of Pharmaceutical Sciences, 14801-903 Araraquara, Brazil
| | - Fernando R Pavan
- São Paulo State University - UNESP, School of Pharmaceutical Sciences, 14801-903 Araraquara, Brazil
| | - Bruna C Lustri
- São Paulo State University - UNESP, School of Pharmaceutical Sciences, 14801-903 Araraquara, Brazil
| | | | - Cristiano G Moreira
- São Paulo State University - UNESP, School of Pharmaceutical Sciences, 14801-903 Araraquara, Brazil
| | - Tuany Zambroti Cândido
- Faculty of Medical Sciences, University of Campinas - UNICAMP, 13081-970 Campinas, SP, Brazil
| | | | - Ana Lúcia T G Ruiz
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP, 13081-970 Campinas, SP, Brazil
| | - Pedro P Corbi
- Institute of Chemistry, University of Campinas - UNICAMP, 13083-970 Campinas, São Paulo, Brazil
| | - Wilton R Lustri
- University of Araraquara - UNIARA, 14801-320 Araraquara, São Paulo, Brazil.
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Manzano CM, Bergamini FR, Formiga AL, Corbi PP, Ruiz ALT, de Oliveira EC, Lustri WR, Ribeiro MA. Corrigendum to: Pt(II) and Pd(II) complexes with ibuprofen hydrazide: Characterization, theoretical calculations, antibacterial and antitumor assays and studies of interaction with CT-DNA.[vol. 1154 (2018) 469–479]. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Manzano CM, Nakahata DH, Tenorio JC, Lustri WR, Resende Nogueira FA, Aleixo NA, da Silva Gomes PS, Pavan FR, Grecco JA, Ribeiro CM, Corbi PP. Silver complexes with fluoroanthranilic acid isomers: Spectroscopic characterization, antimycobacterial activity and cytotoxic studies over a panel of tumor cells. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119293] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Nakahata DH, de Paiva REF, Lustri WR, Corbi PP. Sulfonamide-containing copper(ii) complexes: new insights on biophysical interactions and antibacterial activities. NEW J CHEM 2020. [DOI: 10.1039/d0nj01889a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu–(N^N)–sulfonamide complexes are selective metallonucleases that bind tightly to BSA with no protease activity. These compounds have promising antibacterial properties.
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Affiliation(s)
| | | | - Wilton R. Lustri
- Biological and Health Sciences Department
- University of Araraquara – UNIARA
- 14801-320 Araraquara
- Brazil
| | - Pedro P. Corbi
- Institute of Chemistry
- University of Campinas
- UNICAMP
- 13083-970 Campinas
- Brazil
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Fiori-Duarte AT, Bergamini FR, de Paiva REF, Manzano CM, Lustri WR, Corbi PP. A new palladium(II) complex with ibuprofen: Spectroscopic characterization, DFT studies, antibacterial activities and interaction with biomolecules. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Bergamini FR, Nunes JH, de Carvalho MA, Ribeiro MA, de Paiva PP, Banzato TP, Ruiz AL, de Carvalho JE, Lustri WR, Martins DO, da Costa Ferreira AM, Corbi PP. Polynuclear copper(II) complexes with nalidixic acid hydrazones: Antiproliferative activity and selectivity assessment over a panel of tumor cells. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.084] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Nakahata DH, de Paiva REF, Lustri WR, Ribeiro CM, Pavan FR, da Silva GG, Ruiz ALTG, de Carvalho JE, Corbi PP. Sulfonamide-containing copper(II) metallonucleases: Correlations with in vitro antimycobacterial and antiproliferative activities. J Inorg Biochem 2018; 187:85-96. [PMID: 30081333 DOI: 10.1016/j.jinorgbio.2018.07.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 12/25/2022]
Abstract
The bis-(1,10-phenanthroline)copper(I) complex, [Cu(I)(phen)2]+, was the first copper-based artificial nuclease reported in the literature. The biological and ligand-like properties of sulfonamides make them good candidates for fine-tuning the reactivity of the [Cu(phen)2] motif with biomolecules. In this context, we developed three novel copper(II) complexes containing the sulfonamides sulfameter (smtrH) and sulfadimethoxine (sdmxH) and (N^N)-bidentate ligands (2,2'-biyridine or 1,10-phenantroline). The compounds were characterized by chemical and spectroscopic techniques and single-crystal X-ray crystallography. When targeting plasmid DNA, the phen-containing compounds [Cu(smtr-)2(phen)] (1) and [Cu(sdmx-)2(phen)] (2) demonstrated nuclease activity even in the absence of reducing agents. Addition of ascorbic acid resulted in a complete cleavage of DNA by 1 and 2 at concentrations higher than 10 μM. Experiments designed to evaluate the copper intermediates involved in the nuclease effect after reaction with ascorbic acid identified at least the [Cu(I)(N^N)2]+, [Cu(I)(sulfa)(N^N)]+ and [Cu(I)(sulfa)2]+ species. The compounds interact with DNA via groove binding and intercalation as verified by fluorescence spectroscopy, circular dichroism (CD) and molecular docking. The magnitude and preferred mode of binding are dependent on the nature of both N^N ligand and the sulfonamide. The potent nuclease activity of compounds 1 and 2 are well correlated with their antiproliferative and anti-M. tuberculosis profiles. The results presented here demonstrated the potential for further development of copper(II)-sulfonamide-(N^N) complexes as multipurpose metallodrugs.
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Affiliation(s)
- Douglas H Nakahata
- Institute of Chemistry, University of Campinas, UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Raphael E F de Paiva
- Institute of Chemistry, University of Campinas, UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Wilton R Lustri
- Biological and Health Sciences Department, University of Araraquara, UNIARA, 14801-320 Araraquara, SP, Brazil
| | - Camila M Ribeiro
- School of Pharmaceutical Sciences, São Paulo State University, UNESP, 14800-901 Araraquara, SP, Brazil
| | - Fernando R Pavan
- School of Pharmaceutical Sciences, São Paulo State University, UNESP, 14800-901 Araraquara, SP, Brazil
| | - Gisele G da Silva
- Faculty of Pharmaceutical Sciences, University of Campinas, UNICAMP, 13081-970 Campinas, SP, Brazil; Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas - UNICAMP, 13148-218 Paulínia, SP, Brazil; Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, UNICAMP, 13414-903, Piracicaba, SP, Brazil
| | - Ana L T G Ruiz
- Faculty of Pharmaceutical Sciences, University of Campinas, UNICAMP, 13081-970 Campinas, SP, Brazil; Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas - UNICAMP, 13148-218 Paulínia, SP, Brazil
| | - João E de Carvalho
- Faculty of Pharmaceutical Sciences, University of Campinas, UNICAMP, 13081-970 Campinas, SP, Brazil
| | - Pedro P Corbi
- Institute of Chemistry, University of Campinas, UNICAMP, 13083-970 Campinas, SP, Brazil.
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Lazarini SC, Yamada C, Barud HS, Trovatti E, Corbi PP, Lustri WR. Influence of chemical and physical conditions in selection of Gluconacetobacter hansenii ATCC 23769 strains with high capacity to produce bacterial cellulose for application as sustained antimicrobial drug-release supports. J Appl Microbiol 2018; 125:777-791. [PMID: 29762885 DOI: 10.1111/jam.13916] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/04/2018] [Accepted: 05/09/2018] [Indexed: 02/05/2023]
Abstract
AIMS Obtain varieties of Gluconacetobacter hansenii from original strain ATCC 23729 with greater efficiency to produce bacterial cellulose (BC) membrane with better dry mass yield for application as support of sustained antimicrobials' drug release. METHODS AND RESULTS Application of different chemical and physical conditions (pH, temperature and UV light exposure) to obtain different G. hansenii varieties with high capacity to produce BC membranes. Characterization of the G. hansenii variants was performed by scanning electron microscopy (SEM) and optical microscopy of the colony-forming units. BC membrane produced was characterized by SEM, infrared spectroscopy and X-ray diffraction. The BC produced by variants isolated after incubation at 35°C showed elevated dry mass yield and high capacity of retention and sustained release of ceftriaxone antibiotic with the produced BC by original G. hansenii ATCC 23769 strain subjected to incubation at 28°C and with commercial BC. CONCLUSION The application of different chemical and physical conditions constitutes an important method to obtain varieties of micro-organisms with dissimilar metabolism advantageous in relation to the original strain in the BC production. SIGNIFICANCE AND IMPACT OF THE STUDY These results demonstrate the importance of in vivo studies for the application, in medicine, of BC membranes as support for antimicrobial-sustained release for the skin wound treatment.
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Affiliation(s)
- S C Lazarini
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - C Yamada
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - H S Barud
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - E Trovatti
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - P P Corbi
- Institute of Chemistry, University of Campinas, UNICAMP, Campinas-SP, Brazil
| | - W R Lustri
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
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Nunes JH, Nakahata DH, Lustri WR, Corbi PP, de Paiva RE. The nitro-reduced metabolite of nimesulide: Crystal structure, spectroscopic characterization, ESI-QTOF mass spectrometric analysis and antibacterial evaluation. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Manzano CM, Bergamini FR, Lustri WR, Ruiz ALT, de Oliveira EC, Ribeiro MA, Formiga AL, Corbi PP. Pt(II) and Pd(II) complexes with ibuprofen hydrazide: Characterization, theoretical calculations, antibacterial and antitumor assays and studies of interaction with CT-DNA. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Araújo IMS, Silva RR, Pacheco G, Lustri WR, Tercjak A, Gutierrez J, Júnior JRS, Azevedo FHC, Figuêredo GS, Vega ML, Ribeiro SJL, Barud HS. Hydrothermal synthesis of bacterial cellulose-copper oxide nanocomposites and evaluation of their antimicrobial activity. Carbohydr Polym 2017; 179:341-349. [PMID: 29111060 DOI: 10.1016/j.carbpol.2017.09.081] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 09/12/2017] [Accepted: 09/25/2017] [Indexed: 01/01/2023]
Abstract
In this work, for the first time bacterial cellulose (BC) hydrogel membranes were used for the fabrication of antimicrobial cellulosic nanocomposites by hydrothermal deposition of Cu derivative nanoparticles (i.e.Cu(0) and CuxOy species). BC-Cu nanocomposites were characterized by FTIR, SEM, AFM, XRD and TGA, to study the effect of hydrothermal processing time on the final physicochemical properties of final products. XRD result show that depending on heating time (3-48h), different CuxOy phases were achieved. SEM and AFM analyses unveil the presence of the Cu(0) and copper CuxOy nanoparticles over BC fibrils while the surface of 3D network became more compact and smother for longer heating times. Furthermore, the increase of heating time placed deleterious effect on the structure of BC network leading to decrease of BC crystallinity as well as of the on-set degradation temperature. Notwithstanding, BC-Cu nanocomposites showed excellent antimicrobial activity against E. coli, S. aureus and Salmonella bacteria suggesting potential applications as bactericidal films.
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Affiliation(s)
- Inês M S Araújo
- Universidade Federal do Piauí, Departamento de Química, Campus Ministro Petrônio Portela, Uninga, 64049-550,Teresina, PI, Brazil.
| | - Robson R Silva
- Universidade Estadual Paulista Júlio de Mesquita Filho, Instituto de Química de Araraquara, Departamento de Química Geral e Inorgânica, Rua Professor Francisco Degni, 55, Jardim Quitandinha, 14.800-060, Araraquara, SP, Brazil; Instituto de Física de São Carlos, Universidade São Paulo, 13560-970, São Carlos, SP, Brazil..
| | - Guilherme Pacheco
- Universidade de Araraquara, Uniara, Laboratório de Biopolímeros e Biomateriais (BIOPOLMAT), Rua. Carlos Gomes, 1217, 14.801-320, Araraquara, SP, Brazil.
| | - Wilton R Lustri
- Universidade de Araraquara, Uniara, Laboratório de Biopolímeros e Biomateriais (BIOPOLMAT), Rua. Carlos Gomes, 1217, 14.801-320, Araraquara, SP, Brazil.
| | - Agnieszka Tercjak
- University of the Basque Country (UPV/EHU), Dpto. Ingeniería Química y del Medio Ambiente, Escuela Politécnica Donostia-San Sebastián, Pza. Europa 1, 20018, Donostia-San Sebastián, Spain.
| | - Junkal Gutierrez
- University of the Basque Country (UPV/EHU), Dpto. Ingeniería Química y del Medio Ambiente, Escuela Politécnica Donostia-San Sebastián, Pza. Europa 1, 20018, Donostia-San Sebastián, Spain.
| | - José R S Júnior
- Universidade Federal do Piauí, Departamento de Química, Campus Ministro Petrônio Portela, Uninga, 64049-550,Teresina, PI, Brazil.
| | - Francisco H C Azevedo
- Universidade Luterana do Brasil, Programa de Pós Graduação Em Genética e Toxicologia Aplicada, Av. Farroupilha, 8001, Prédio 01, São Luís, 92.450-900, Canoas, RS, Brazil.
| | - Girlene S Figuêredo
- Universidade Federal do Piauí, Departamento de Química, Campus Ministro Petrônio Portela, Uninga, 64049-550,Teresina, PI, Brazil.
| | - Maria L Vega
- Universidade Federal do Piauí, Departamento de Química, Campus Ministro Petrônio Portela, Uninga, 64049-550,Teresina, PI, Brazil.
| | - Sidney J L Ribeiro
- Universidade Estadual Paulista Júlio de Mesquita Filho, Instituto de Química de Araraquara, Departamento de Química Geral e Inorgânica, Rua Professor Francisco Degni, 55, Jardim Quitandinha, 14.800-060, Araraquara, SP, Brazil.
| | - Hernane S Barud
- Universidade de Araraquara, Uniara, Laboratório de Biopolímeros e Biomateriais (BIOPOLMAT), Rua. Carlos Gomes, 1217, 14.801-320, Araraquara, SP, Brazil.
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Lustri WR, Lazarini SC, Lustri BC, Corbi PP, Silva MAC, Resende Nogueira FA, Aquino R, Amaral AC, Treu Filho O, Massabni AC, da Silva Barud H. Spectroscopic characterization and biological studies in vitro of a new silver complex with furosemide: Prospective of application as an antimicrobial agent. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Nunes JHB, Bergamini FR, Lustri WR, de Paiva PP, Ruiz ALT, de Carvalho JE, Corbi PP. Synthesis, characterization and in vitro biological assays of a silver(I) complex with 5-fluorouracil: A strategy to overcome multidrug resistant tumor cells. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.01.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Nakahata DH, Ribeiro MA, Corbi PP, Machado D, Lancellotti M, Lustri WR, da Costa Ferreira AM, Formiga AL. Synthesis, characterization and preliminary antimicrobial assays of copper(II) complexes with 2-(imidazole-2-yl)heteroaryl ligands. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.01.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fiori ATM, Nakahata DH, Cuin A, Lustri WR, Corbi PP. Synthesis, crystallographic studies, high resolution mass spectrometric analyses and antibacterial assays of silver(I) complexes with sulfisoxazole and sulfadimethoxine. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.09.046] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zanvettor NT, Abbehausen C, Lustri WR, Cuin A, Masciocchi N, Corbi PP. Silver sulfadoxinate: Synthesis, structural and spectroscopic characterizations, and preliminary antibacterial assays in vitro. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Carvalho MA, de Paiva RE, Bergamini FR, Gomes AF, Gozzo FC, Lustri WR, Formiga AL, Shishido SM, Ferreira CV, Corbi PP. A silver complex with tryptophan: Synthesis, structural characterization, DFT studies and antibacterial and antitumor assays in vitro. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.07.044] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Corbi PP, Formiga AL, Bonk FA, Quintão FA, Ferraresi DK, Lustri WR, Massabni AC. Synthesis, spectroscopic characterization and molecular modeling of a tetranuclear platinum(II) complex with thiazolidine-4-carboxylic acid. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.03.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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de Paiva RE, Abbehausen C, Gomes AF, Gozzo FC, Lustri WR, Formiga AL, Corbi PP. Synthesis, spectroscopic characterization, DFT studies and antibacterial assays of a novel silver(I) complex with the anti-inflammatory nimesulide. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.02.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abbehausen C, Castro JF, Spera MB, Heinrich TA, Costa-Neto CM, Lustri WR, Formiga AL, Corbi PP. Synthesis, spectroscopic characterization, DFT studies and biological assays of a novel gold(I) complex with 2-mercaptothiazoline. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.06.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Fiori ATM, Lustri WR, Magalhães A, Corbi PP. Chemical, spectroscopic characterization and antibacterial activities in vitro of a novel gold(I)–ibuprofen complex. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2011.02.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Abbehausen C, Heinrich TA, Abrão EP, Costa-Neto CM, Lustri WR, Formiga AL, Corbi PP. Chemical, spectroscopic characterization, DFT studies and initial pharmacological assays of a silver(I) complex with N-acetyl-l-cysteine. Polyhedron 2011. [DOI: 10.1016/j.poly.2010.11.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Spera MBM, Quintão FA, Ferraresi DKD, Lustri WR, Magalhães A, Formiga ALB, Corbi PP. Palladium(II) complex with S-allyl-L-cysteine: new solid-state NMR spectroscopic measurements, molecular modeling and antibacterial assays. Spectrochim Acta A Mol Biomol Spectrosc 2011; 78:313-318. [PMID: 21050807 DOI: 10.1016/j.saa.2010.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Revised: 08/25/2010] [Accepted: 10/01/2010] [Indexed: 05/30/2023]
Abstract
Nuclear magnetic resonance studies, molecular modeling and antibacterial assays of the palladium(II) complex with S-allyl-L-cysteine (deoxyalliin) are presented. Studies based on solid and solution 13C and 15N nuclear magnetic resonance (NMR) spectroscopy confirmed that the palladium(II) complex preserved the same structural arrangement in both states, with no modifications on coordination sphere when dissolved in water. Density functional theory (DFT) studies stated that the trans isomer is the most stable one. Antibacterial activities of S-allyl-L-cysteine and its palladium(II) complex were evaluated by antibiogram assays using the disc diffusion method. The palladium(II) complex showed an effective antibacterial activity against Staphylococcus aureus (Gram-positive), Escherichia coli and Pseudomonas aeruginosa (Gram-negative) bacterial cells.
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Affiliation(s)
- Marcelle B M Spera
- Instituto de Química, Universidade Estadual de Campinas-UNICAMP, Cidade Universitária Zeferino Vaz, s/n, CP 6154, CEP 13083-970, Campinas, SP, Brazil
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26
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Barud HS, Regiani T, Marques RFC, Lustri WR, Messaddeq Y, Ribeiro SJL. Antimicrobial Bacterial Cellulose-Silver Nanoparticles Composite Membranes. Journal of Nanomaterials 2011; 2011:1-8. [PMID: 0 DOI: 10.1155/2011/721631] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Antimicrobial bacterial cellulose-silver nanoparticles composite membranes have been obtained by“in situ”preparation of Ag nanoparticles from hydrolytic decomposition of silver nitrate solution using triethanolamine as reducing and complexing agent. The formation of silver nanoparticles was evidenced by the X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and absorption in the UV-Visible (350 nm to 600 nm). Thermal and mechanical properties together with swelling behavior for water were considered. TEA concentration was observed to be important in order to obtain only Ag particles and not a mixture of silver oxides. It was also observed to control particle size and amount of silver contents in bacterial cellulose. The composite membranes exhibited strong antimicrobial activity against Gram-negative and Gram-positive bacteria.
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Affiliation(s)
- Hernane S. Barud
- Institute of Chemistry, São Paulo State University (UNESP), 14801-970 Araraquara, SP, Brazil
| | - Thaís Regiani
- Institute of Chemistry, São Paulo State University (UNESP), 14801-970 Araraquara, SP, Brazil
| | - Rodrigo F. C. Marques
- Instituto de Ciência e Tecnologia (ICT), Universidade Federal de Alfenas (UNIFAL-MG), Campus Avançado de Poços de Caldas, Rua Gabriel Monteiro da Silva, 37130-000 Alfenas, MG, Brazil
| | | | - Younes Messaddeq
- Institute of Chemistry, São Paulo State University (UNESP), 14801-970 Araraquara, SP, Brazil
| | - Sidney J. L. Ribeiro
- Institute of Chemistry, São Paulo State University (UNESP), 14801-970 Araraquara, SP, Brazil
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27
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Donini ÍAN, Salvi DTBD, Fukumoto FK, Lustri WR, Barud HS, Marchetto R, Messaddeq Y, Ribeiro SJL. Biossíntese e recentes avanços na produção de celulose bacteriana. Eclet Quím 2010. [DOI: 10.1590/s0100-46702010000400021] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
O presente trabalho discute os recentes avanços na biossíntese e na produção de celulose bacteriana (CB) pela gram-negativa, aeróbia e aceto-ácida Gluconacetobacter. xylinus. A CB se difere de seu par vegetal, principalmente devido ao seu caráter de fibras nanométricas, contra o caráter micrométrico da vegetal, são extruídas através da parede celular de G. xylinus, com isso sua estrutura macroscópica é mecanicamente e fisicamente mais resistente, abrindo grandes oportunidades de aplicações tecnológicas e biológicas, muito além das obtidas pela celulose vegetal. O desafio atual está no aumento da produção de CB, que se debruça num maior entendimento de sua biossíntese para que seja possível uma posterior manipulação genético-bioquímica oriundas do recente avanço na biologia molecular e nos bioprocessos. São relacionados trabalhos utilizando a CB como base para produção de compósitos como também o que a está sendo feito de mais atual com este material biológico.
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Affiliation(s)
| | | | - Fabiana K. Fukumoto
- Universidade Estadual Paulista, Brasil; Universidade Estadual Paulista, Brasil
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28
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Zanelli CF, Maragno ALC, Gregio APB, Komili S, Pandolfi JR, Mestriner CA, Lustri WR, Valentini SR. eIF5A binds to translational machinery components and affects translation in yeast. Biochem Biophys Res Commun 2006; 348:1358-66. [PMID: 16914118 DOI: 10.1016/j.bbrc.2006.07.195] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2006] [Accepted: 07/28/2006] [Indexed: 11/20/2022]
Abstract
The putative translation factor eIF5A is essential for cell viability and is highly conserved from archebacteria to mammals. Although this protein was originally identified as a translation initiation factor, subsequent experiments did not support a role for eIF5A in general translation. In this work, we demonstrate that eIF-5A interacts with structural components of the 80S ribosome, as well as with the translation elongation factor 2 (eEF2). Moreover, eIF5A is further shown to cofractionate with monosomes in a translation-dependent manner. Finally, eIF5A mutants show altered polysome profiles and are sensitive to translation inhibitors. Our results re-establish a function for eIF5A in translation and suggest a role for this factor in translation elongation instead of translation initiation.
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Affiliation(s)
- Cleslei F Zanelli
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University-UNESP, Araraquara, SP 14801-902, Brazil
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