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Nafaee ZH, Egyed V, Jancsó A, Tóth A, Gerami AM, Dang TT, Heiniger‐Schell J, Hemmingsen L, Hunyadi‐Gulyás É, Peintler G, Gyurcsik B. Revisiting the hydrolysis of ampicillin catalyzed by Temoneira-1 β-lactamase, and the effect of Ni(II), Cd(II) and Hg(II). Protein Sci 2023; 32:e4809. [PMID: 37853808 PMCID: PMC10661098 DOI: 10.1002/pro.4809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/18/2023] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
β-Lactamases grant resistance to bacteria against β-lactam antibiotics. The active center of TEM-1 β-lactamase accommodates a Ser-Xaa-Xaa-Lys motif. TEM-1 β-lactamase is not a metalloenzyme but it possesses several putative metal ion binding sites. The sites composed of His residue pairs chelate borderline transition metal ions such as Ni(II). In addition, there are many sulfur-containing donor groups that can coordinate soft metal ions such as Hg(II). Cd(II) may bind to both types of the above listed donor groups. No significant change was observed in the circular dichroism spectra of TEM-1 β-lactamase on increasing the metal ion content of the samples, with the exception of Hg(II) inducing a small change in the secondary structure of the protein. A weak nonspecific binding of Hg(II) was proven by mass spectrometry and 119m Hg perturbed angular correlation spectroscopy. The hydrolytic process of ampicillin catalyzed by TEM-1 β-lactamase was described by the kinetic analysis of the set of full catalytic progress curves, where the slow, yet observable conversion of the primary reaction product into a second one, identified as ampilloic acid by mass spectrometry, needed also to be considered in the applied model. Ni(II) and Cd(II) slightly promoted the catalytic activity of the enzyme while Hg(II) exerted a noticeable inhibitory effect. Hg(II) and Ni(II), applied at 10 μM concentration, inhibited the growth of E. coli BL21(DE3) in M9 minimal medium in the absence of ampicillin, but addition of the antibiotic could neutralize this toxic effect by complexing the metal ions.
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Affiliation(s)
- Zeyad H. Nafaee
- Department of Molecular and Analytical ChemistryUniversity of SzegedSzegedHungary
- College of PharmacyUniversity of BabylonBabelIraq
| | - Viktória Egyed
- Department of Molecular and Analytical ChemistryUniversity of SzegedSzegedHungary
| | - Attila Jancsó
- Department of Molecular and Analytical ChemistryUniversity of SzegedSzegedHungary
| | - Annamária Tóth
- Department of Molecular and Analytical ChemistryUniversity of SzegedSzegedHungary
| | - Adeleh Mokhles Gerami
- School of Particles and AcceleratorsInstitute for Research in Fundamental Sciences (IPM)TehranIran
- European Organization for Nuclear Research (CERN)GenevaSwitzerland
| | - Thanh Thien Dang
- Institute for Materials Science and Center for Nanointegration Duisburg‐Essen (CENIDE)University of Duisburg‐EssenEssenGermany
| | - Juliana Heiniger‐Schell
- European Organization for Nuclear Research (CERN)GenevaSwitzerland
- Institute for Materials Science and Center for Nanointegration Duisburg‐Essen (CENIDE)University of Duisburg‐EssenEssenGermany
| | - Lars Hemmingsen
- Department of ChemistryUniversity of CopenhagenCopenhagenDenmark
| | - Éva Hunyadi‐Gulyás
- Laboratory of Proteomics Research, Biological Research CentreHungarian Research Network (HUN‐REN)SzegedHungary
| | - Gábor Peintler
- Department of Physical Chemistry and Material SciencesUniversity of SzegedSzegedHungary
| | - Béla Gyurcsik
- Department of Molecular and Analytical ChemistryUniversity of SzegedSzegedHungary
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Kosaristanova L, Rihacek M, Sucha F, Milosavljevic V, Svec P, Dorazilova J, Vojtova L, Antal P, Kopel P, Patocka Z, Adam V, Zurek L, Dolezelikova K. Synergistic antibacterial action of the iron complex and ampicillin against Staphylococcus aureus. BMC Microbiol 2023; 23:288. [PMID: 37803300 PMCID: PMC10559456 DOI: 10.1186/s12866-023-03034-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/28/2023] [Indexed: 10/08/2023] Open
Abstract
OBJECTIVES Resistance to antibiotics among bacteria of clinical importance, including Staphylococcus aureus, is a serious problem worldwide and the search for alternatives is needed. Some metal complexes have antibacterial properties and when combined with antibiotics, they may increase bacterial sensitivity to antimicrobials. In this study, we synthesized the iron complex and tested it in combination with ampicillin (Fe16 + AMP) against S. aureus. METHODS An iron complex (Fe16) was synthesized and characterized using spectroscopy methods. Confirmation of the synergistic effect between the iron complex (Fe16) and ampicillin (AMP) was performed using ζ-potential, infrared spectra and FICI index calculated from the minimum inhibitory concentration (MIC) from the checkerboard assay. Cytotoxic properties of combination Fe16 + AMP was evaluated on eukaryotic cell line. Impact of combination Fe16 + AMP on chosen genes of S. aureus were performed by Quantitative Real-Time PCR. RESULTS The MIC of Fe16 + AMP was significantly lower than that of AMP and Fe16 alone. Furthermore, the infrared spectroscopy revealed the change in the ζ-potential of Fe16 + AMP. We demonstrated the ability of Fe16 + AMP to disrupt the bacterial membrane of S. aureus and that likely allowed for better absorption of AMP. In addition, the change in gene expression of bacterial efflux pumps at the sub-inhibitory concentration of AMP suggests an insufficient import of iron into the bacterial cell. At the same time, Fe16 + AMP did not have any cytotoxic effects on keratinocytes. CONCLUSIONS Combined Fe16 + AMP therapy demonstrated significant synergistic and antimicrobial effects against S. aureus. This study supports the potential of combination therapy and further research.
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Affiliation(s)
- Ludmila Kosaristanova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Martin Rihacek
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Frantiska Sucha
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Vedran Milosavljevic
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Pavel Svec
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Jana Dorazilova
- Central European Institute of Technology, University of Technology, Brno, Czech Republic
| | - Lucy Vojtova
- Central European Institute of Technology, University of Technology, Brno, Czech Republic
| | - Peter Antal
- Department of Inorganic Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Pavel Kopel
- Department of Inorganic Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Zdenek Patocka
- Department of Forest Management and Applied Geoinformatics, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Ludek Zurek
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Kristyna Dolezelikova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.
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Božić Cvijan B, Korać Jačić J, Bajčetić M. The Impact of Copper Ions on the Activity of Antibiotic Drugs. Molecules 2023; 28:5133. [PMID: 37446795 DOI: 10.3390/molecules28135133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 07/15/2023] Open
Abstract
Copper (Cu) is an essential trace metal and its concentration in body plasma is tightly regulated. An increase in Cu concentration in body fluids is observed in numerous pathological conditions, including infections caused by microorganisms. Evidence shows that Cu ions can impact the activity of antibiotics by increasing efficiency or diminishing/neutralizing antibiotic activity, forming complexes which may lead to antibiotic structure degradation. Herein, we represent the evidence available on Cu-antibiotic interactions and their possible impact on antimicrobial therapy efficiency. So far, in vitro studies described interactions between Cu ions and the majority of antibiotics in clinical use: penicillins, cephalosporins, carbapenems, macrolides, aminoglycosides, tetracyclines, fluoroquinolones, isoniazid, metronidazole. In vitro-described degradation or lower antimicrobial activity of amoxicillin, ampicillin, cefaclor, ceftriaxone, and meropenem in the presence of Cu ions suggest caution when using prescribed antibiotics in patients with altered Cu levels. On the other hand, several Cu-dependent compounds with antibacterial activity including the drug-resistant bacteria were discovered, such as thiosemicarbazones, disulfiram, dithiocarbamates, 8-hydroxiquinoline, phenanthrolines, pyrithione. Having in mind that the development of new antibiotics is already marked as inadequate and does not meet global needs, the potential of Cu-antibiotic interactions to change the efficiency of antimicrobial therapy requires further investigation.
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Affiliation(s)
- Bojana Božić Cvijan
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Jelena Korać Jačić
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade, Serbia
| | - Milica Bajčetić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinical Pharmacology Unit, University Children's Hospital, 11000 Belgrade, Serbia
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4
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Study of Synthesis, Characterization, DFT, and In Vitro Biological Activity of Cu(II), Co(II), and Fe(II) Metal Complexes Based on Heterocyclic Azo Pyrazole Dye Ligand. J CHEM-NY 2022. [DOI: 10.1155/2022/3476954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A new azo dye ligand was synthesized by coupling 5-amino-3-methyl-1-phenylpyrazole with a diazonium ion of 2-amino-1-naphthalene sulfonic acid. Its Co(II), Fe(II), and Cu(II) complexes were also synthesized. This ligand and its complexes were characterized based on elemental analysis, IR, 1H NMR, UV-vis spectra, and thermogravimetric analysis. The data showed that the proposed complexes have an octahedral geometry around the central metal ion. The nonelectrolytic nature of the complexes was confirmed by molar conductance measurement. X-ray powder diffraction indicates that Co(II) and Fe(II) complexes are amorphous in nature, whereas the Cu(II) complex has crystalline and amorphous phases. The bond strength and molecular stability between the interaction of metal ions and the ligand were investigated by density functional theory (DFT). The in vitro antibacterial activity of the ligand and complexes was tested against two Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) and two Gram-negative bacteria (Escherichia coli and Neisseria gonorrhoeae) and a fungus (Candida albicans). The Cu(II) complex exhibited a high antimicrobial effect against all tested microorganisms. The DNA fragmentation percentage and cytotoxic activity against human liver cancer cells (HepG2) were evaluated. All tested compounds showed potential anticancer activity, and the Co(II) complex showed better activity results than the other tested compounds, with IC50 = 19.55 μg/mL.
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Abbas AM, Aboelmagd A, Kishk SM, Nasrallah HH, Boyd WC, Kalil H, Orabi AS. A Novel Ibuprofen Derivative and Its Complexes: Physicochemical Characterization, DFT Modeling, Docking, In Vitro Anti-Inflammatory Studies, and DNA Interaction. Molecules 2022; 27:molecules27217540. [PMID: 36364366 PMCID: PMC9653649 DOI: 10.3390/molecules27217540] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
A novel derivative of ibuprofen and salicylaldehyde N′-(4-hydroxybenzylidene)-2-(4-isobutylphenyl) propane hydrazide (HL) was synthesized, followed by its complexation with Cu, Ni, Co, Gd, and Sm. The compounds obtained were characterized by 1HNMR, mass spectrometry, UV-Vis spectroscopy, FT-IR spectroscopy, thermal analysis (DTA and TGA), conductivity measurements, and magnetic susceptibility measurements. The results indicate that the complexes formed were [Cu(L)(H2O)]Cl·2H2O, [Ni(L)2], [Co(L)2]·H2O, [Gd(L)2(H2O)2](NO3)·2H2O and [Sm(L)2(H2O)2](NO3)·2H2O. The surface characteristics of the produced compounds were evaluated by DFT calculations using the MOE environment. The docking was performed against the COX2 targeting protein (PDB code: 5IKT Homo sapiens). The binding energies were −7.52, −9.41, −9.51, −8.09, −10.04, and −8.05 kcal/mol for HL and the Co, Ni, Cu, Sm, and Gd complexes, respectively, which suggests the enhancement of anti-inflammatory behaviors compared with the binding energy of ibuprofen (−5.38 kcal/mol). The anti-inflammatory properties of the new compounds were assessed in vitro using the western blot analysis method and the enzyme-linked immunosorbent assay (ELISA), consistent with the outcomes obtained from docking. The half-maximal inhibitory concentration (IC50) values are 4.9, 1.7, 3.7, 5.6, 2.9, and 2.3 µM for HL and the Co, Ni, Cu, Sm, and Gd complexes, respectively, showing that they are more effective inhibitors of COX2 than ibuprofen (IC50 = 31.4 µM). The brain or intestinal estimated permeation method (BOILED-Egg) showed that HL and its Co complex have high gastrointestinal absorption, while only the free ligand has high brain penetration. The binding constants of Co, Cu, and Gd complexes with DNA were recorded as 2.20 × 104, 2.27 × 106, and 4.46 × 103 M−1, respectively, indicating the intercalator behavior of interaction. The newly synthesized ibuprofen derivative and its metal complexes showed greater anti-inflammatory activity than ibuprofen.
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Affiliation(s)
- Abbas M. Abbas
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: (A.M.A.); (H.K.); (A.S.O.)
| | - Ahmed Aboelmagd
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Safaa M. Kishk
- Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Hossam H. Nasrallah
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Chemistry Department, Faculty of Dentistry, Sinai University, Kantara 41612, Egypt
| | | | - Haitham Kalil
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Chemistry Department, Cleveland State University, Cleveland, OH 44115, USA
- Correspondence: (A.M.A.); (H.K.); (A.S.O.)
| | - Adel S. Orabi
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: (A.M.A.); (H.K.); (A.S.O.)
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Chmiel JA, Stuivenberg GA, Alathel A, Gorla J, Grohe B, Razvi H, Burton JP, Bjazevic J. High-Throughput in vitro Gel-Based Plate Assay to Screen for Calcium Oxalate Stone Inhibitors. Urol Int 2021; 106:616-622. [PMID: 34883484 DOI: 10.1159/000519842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/20/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Kidney stones are a common medical condition that is increasing in prevalence worldwide. Approximately, ∼80% of urinary calculi are composed of calcium oxalate (CaOx). There is a growing interest toward identifying therapeutic compounds that can inhibit the formation of CaOx crystals. However, some chemicals (e.g., antibiotics and bacterial metabolites) may directly promote crystallization. Current knowledge is limited regarding crystal promoters and inhibitors. Thus, we have developed an in vitro gel-based diffusion model to screen for substances that directly influence CaOx crystal formation. MATERIALS AND METHODS We used double diffusion of sodium oxalate and calcium chloride-loaded paper disks along an agar medium to facilitate the controlled formation of monohydrate and dihydrate CaOx crystals. A third disk was used for the perpendicular diffusion of a test substance to assess its influence on CaOx crystal formation. RESULTS We confirmed that citrates and magnesium are effective inhibitors of CaOx crystals. We also demonstrated that 2 strains of uropathogenic Escherichia coli are able to promote crystal formation. While the other tested uropathogens and most antibiotics did not change crystal formation, ampicillin was able to reduce crystallization. CONCLUSION We have developed an inexpensive and high-throughput model to evaluate substances that influence CaOx crystallization.
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Affiliation(s)
- John A Chmiel
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada.,Lawson Research Health Research Institute, London, Ontario, Canada
| | - Gerrit A Stuivenberg
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada.,Lawson Research Health Research Institute, London, Ontario, Canada
| | - Abdulaziz Alathel
- Division of Urology, Department of Surgery, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Jaswanth Gorla
- Lawson Research Health Research Institute, London, Ontario, Canada
| | - Bernd Grohe
- Lawson Research Health Research Institute, London, Ontario, Canada
| | - Hassan Razvi
- Division of Urology, Department of Surgery, Western University, London, Ontario, Canada
| | - Jeremy P Burton
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada.,Lawson Research Health Research Institute, London, Ontario, Canada.,Division of Urology, Department of Surgery, Western University, London, Ontario, Canada
| | - Jennifer Bjazevic
- Division of Urology, Department of Surgery, Western University, London, Ontario, Canada
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Hrioua A, Loudiki A, Farahi A, Laghrib F, Bakasse M, Lahrich S, Saqrane S, El Mhammedi MA. Complexation of amoxicillin by transition metals: Physico-chemical and antibacterial activity evaluation. Bioelectrochemistry 2021; 142:107936. [PMID: 34474204 DOI: 10.1016/j.bioelechem.2021.107936] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 08/15/2021] [Accepted: 08/17/2021] [Indexed: 10/20/2022]
Abstract
Some bacteria have developed resistance to antibiotics that were once commonly used to treat them. Moreover, this resistance has become more and more massive and worrying. During this work, we succeeded in synthesizing "metal-antibiotic" complexes, combining as a ligand for the metals of Cu (II), Zn (II) and Fe (III). These complexes AMX - M (M = Cu, Fe and Zn) were characterized by UV-Vis spectrophotometry, IR spectroscopy, and electrochemical methods. Job's method of continuous variation suggested 1:1 metals to ligand stoichiometry for all amoxicillin complexes. The binding constant/association constant (K) of the AMX with Zn(II), Cu(II), and Fe(III) were found to be 4.46 × 104, 7.17 × 102 and 7.65 × 102 L mol-1, respectively. The IR spectra shows that the ligands coordinated to the metal ions through amino, imino, carboxylate, β-lactamic and carbonyl groups. The electrochemical results proved that amoxicillin oxidation process can be delayed by transition metal complexation. After, the complex synthesis, the antibacterial activity of ligand and its metal complexes were evaluated against Escherichia. coli bacteria by antibiogram method. The results show that the metal-amoxicillin complexes have better antibacterial activity against Escherichia coli (E. coli) than the free ligand (amoxicillin) due to the AMX protection against oxidation after complexation.
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Affiliation(s)
- A Hrioua
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty, 25 000 Khouribga, Morocco
| | - A Loudiki
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty, 25 000 Khouribga, Morocco; Chouaib Doukkali University, Faculty of Sciences, Laboratory of Organic Bioorganic Chemistry and Environment, El Jadida, Morocco
| | - A Farahi
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty, 25 000 Khouribga, Morocco
| | - F Laghrib
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty, 25 000 Khouribga, Morocco; Sidi Mohamed Ben Abdellah University, City of Innovation, Immouzer Road, B. P 2626 Fez, Morocco; Sidi Mohamed Ben Abdellah University, Engineering Laboratory of Organometallic, Molecular Materials, and Environment, Faculty of Sciences, Fez, Morocco
| | - M Bakasse
- Chouaib Doukkali University, Faculty of Sciences, Laboratory of Organic Bioorganic Chemistry and Environment, El Jadida, Morocco
| | - S Lahrich
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty, 25 000 Khouribga, Morocco
| | - S Saqrane
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty, 25 000 Khouribga, Morocco
| | - M A El Mhammedi
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary faculty, 25 000 Khouribga, Morocco.
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8
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Das A, Das A, Banik BK. Influence of dipole moments on the medicinal activities of diverse organic compounds. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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9
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Mohapatra RK, Saikishore VP, Azam M, Biswal SK. Synthesis and physicochemical studies of a series of mixed-ligand transition metal complexes and their molecular docking investigations against Coronavirus main protease. OPEN CHEM 2020. [DOI: 10.1515/chem-2020-0190] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractA novel series of mixed-ligand complexes of the type, [M(L1)(L2)Cl]·2H2O [L1 = 2-(α-methyl salicylidene hydrazine) benzimidazole (primary ligand), L2 = 2,2′-bipyridine (bipy; secondary ligand), M = Co(ii), Ni(ii), Cu(ii) and Zn(ii)], were based on the physicoanalytical studies. The spectroscopic findings revealed tridentate nature of the Schiff base ligand (L1) and its coordination to the metal ions via azomethine nitrogen, ring nitrogen and the deprotonated phenolic oxygen atoms. Furthermore, the synthesized compounds were evaluated for antimicrobial activity against Bacillus subtilis, Escherichia coli and Salmonella typhi microorganisms. In addition, molecular docking studies were carried out against Middle East respiratory syndrome coronavirus (PDB ID: 4ZS6) and severe acute respiratory syndrome coronavirus 2 main protease (PDB ID: 6W63).
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Affiliation(s)
- Ranjan K. Mohapatra
- Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India
| | - V. P. Saikishore
- Department of Chemistry, Centurion University of Technology and Management, Odisha, India
| | - Mohammad Azam
- Department of Chemistry, College of Science, King Saud University, Riyadh PO BOX 2455, Riyadh 11451, Saudi Arabia
| | - Susanta K. Biswal
- Department of Chemistry, Centurion University of Technology and Management, Odisha, India
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10
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Abbas AM, Fisal SR, Orabi AS. Enhancement of the biochemical activity of some market antibiotics by chemical modification: Synthesis, characterization, and biochemical evaluation. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Abbas M. Abbas
- Chemistry Department, Faculty of Science Suez Canal University Ismailia Egypt
| | - Sara R. Fisal
- Chemistry Department, Faculty of Science Suez Canal University Ismailia Egypt
| | - Adel S. Orabi
- Chemistry Department, Faculty of Science Suez Canal University Ismailia Egypt
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11
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Garza-Cervantes JA, Meza-Bustillos JF, Resendiz-Hernández H, Suárez-Cantú IA, Ortega-Rivera OA, Salinas E, Escárcega-González CE, Morones-Ramírez JR. Re-sensitizing Ampicillin and Kanamycin-Resistant E. coli and S. aureus Using Synergistic Metal Micronutrients-Antibiotic Combinations. Front Bioeng Biotechnol 2020; 8:612. [PMID: 32671033 PMCID: PMC7327704 DOI: 10.3389/fbioe.2020.00612] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 05/19/2020] [Indexed: 01/19/2023] Open
Abstract
Due to the recent emergence of multi-drug resistant strains, the development of novel antimicrobial agents has become a critical issue. The use of micronutrient transition metals is a promising approach to overcome this problem since these compounds exhibit significant toxicity at low concentrations in prokaryotic cells. In this work, we demonstrate that at concentrations lower than their minimal inhibitory concentrations and in combination with different antibiotics, it is possible to mitigate the barriers to employ metallic micronutrients as therapeutic agents. Here, we show that when administered as a combinatorial treatment, Cu2+, Zn2+, Co2+, Cd2+, and Ni2+ increase susceptibility of Escherichia coli and Staphylococcus aureus to ampicillin and kanamycin. Furthermore, ampicillin-resistant E. coli is re-sensitized to ampicillin when the ampicillin is administered in combination with Cu2+, Cd2+, or Ni2. Similarly, Cu2+, Zn2+, or Cd2+ re-sensitize kanamycin-resistant E. coli and S. aureus to kanamycin when administered in a combinatorial treatment with those transition metals. Here, we demonstrate that for both susceptible and resistant bacteria, transition-metal micronutrients, and antibiotics interact synergistically in combinatorial treatments and exhibit increased effects when compared to the treatment with the antibiotic alone. Moreover, in vitro and in vivo assays, using a murine topical infection model, showed no toxicological effects of either treatment at the administered concentrations. Lastly, we show that combinatorial treatments can clear a murine topical infection caused by an antibiotic-resistant strain. Altogether, these results suggest that antibiotic-metallic micronutrient combinatorial treatments will play an important role in future developments of antimicrobial agents and treatments against infections caused by both susceptible and resistant strains.
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Affiliation(s)
- Javier Alberto Garza-Cervantes
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Mexico.,Centro de Investigación en Biotecnologíay Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Apodaca, Mexico
| | - Jesus F Meza-Bustillos
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Mexico
| | - Haziel Resendiz-Hernández
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Mexico
| | - Ivan A Suárez-Cantú
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Mexico
| | - Oscar Antonio Ortega-Rivera
- Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Mexico
| | - Eva Salinas
- Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, Mexico
| | - Carlos Enrique Escárcega-González
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Mexico.,Centro de Investigación en Biotecnologíay Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Apodaca, Mexico
| | - Jose Ruben Morones-Ramírez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, San Nicolás de los Garza, Mexico.,Centro de Investigación en Biotecnologíay Nanotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Apodaca, Mexico
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12
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Mohanta GC, Pandey SK, Maurya IK, Sahota TS, Mondal SK, Deep A. Synergistic Antimicrobial Activity in Ampicillin Loaded Core‐Shell ZnO@ZIF‐8 Particles. ChemistrySelect 2019. [DOI: 10.1002/slct.201902379] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Girish C. Mohanta
- Academy of Scientific and Innovative Research (AcSIR-CSIO) Chandigarh 160030 India
- Department of Ubiquitous Analytical TechniquesCSIR-Central Scientific Instruments Organisation (CSIR-CSIO) Chandigarh 160030 India
| | - Satish K. Pandey
- Department of Ubiquitous Analytical TechniquesCSIR-Central Scientific Instruments Organisation (CSIR-CSIO) Chandigarh 160030 India
| | - Indresh K. Maurya
- Department of Microbial BiotechnologyPanjab University (South Campus) Chandigarh 160014 India
| | - Tavleen S. Sahota
- Department of BiotechnologyPanjab University (South Campus) Chandigarh 160014 India
| | - Sanjay K. Mondal
- Department of Chemical SciencesIndian Institute of Science Education and Research, Mohali Sector 81, Manauli PO, S.A.S. Nagar Mohali 140306, Punjab India
| | - Akash Deep
- Academy of Scientific and Innovative Research (AcSIR-CSIO) Chandigarh 160030 India
- Department of Ubiquitous Analytical TechniquesCSIR-Central Scientific Instruments Organisation (CSIR-CSIO) Chandigarh 160030 India
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13
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Hrioua A, Farahi A, Lahrich S, Bakasse M, Saqrane S, El Mhammedi MA. Chronoamperometric Detection of Amoxicillin at Graphite Electrode using Chelate Effect of Copper(II) Ions : Application in Human Blood and Pharmaceutical Tablets. ChemistrySelect 2019. [DOI: 10.1002/slct.201901689] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Asmaa Hrioua
- Sultan Moulay Slimane University of Beni MellalLaboratory of ChemistryModeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga MoroccoTel.: +212 68858296
| | - Abdelfattah Farahi
- Ibn Zohr UniversityTeam of Catalysis and EnvironmentFaculty of Sciences, BP 8106 Cité Dakhla, Agadir Morocco
| | - Sara Lahrich
- Sultan Moulay Slimane University of Beni MellalLaboratory of ChemistryModeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga MoroccoTel.: +212 68858296
| | - Mina Bakasse
- Chouaib Doukkali UniversityFaculty of SciencesLaboratory of Organic Bioorganic Chemistry and Environment Morocco
| | - Sana Saqrane
- Sultan Moulay Slimane University of Beni MellalLaboratory of ChemistryModeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga MoroccoTel.: +212 68858296
| | - Moulay Abderrahim El Mhammedi
- Sultan Moulay Slimane University of Beni MellalLaboratory of ChemistryModeling and Environmental Sciences, Polydisciplinary faculty 25 000 Khouribga MoroccoTel.: +212 68858296
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14
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Synthesis, structural investigations, DFT, molecular docking and antifungal studies of transition metal complexes with benzothiazole based Schiff base ligands. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.070] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Božić B, Korać J, Stanković DM, Stanić M, Romanović M, Pristov JB, Spasić S, Popović-Bijelić A, Spasojević I, Bajčetić M. Coordination and redox interactions of β-lactam antibiotics with Cu 2+ in physiological settings and the impact on antibacterial activity. Free Radic Biol Med 2018; 129:279-285. [PMID: 30267756 DOI: 10.1016/j.freeradbiomed.2018.09.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 09/17/2018] [Accepted: 09/23/2018] [Indexed: 11/22/2022]
Abstract
An increase in the copper pool in body fluids has been related to a number of pathological conditions, including infections. Copper ions may affect antibiotics via the formation of coordination bonds and/or redox reactions. Herein, we analyzed the interactions of Cu2+ with eight β-lactam antibiotics using UV-Vis spectrophotometry, EPR spectroscopy, and electrochemical methods. Penicillin G did not show any detectable interactions with Cu2+. Ampicillin, amoxicillin and cephalexin formed stable colored complexes with octahedral coordination environment of Cu2+ with tetragonal distortion, and primary amine group as the site of coordinate bond formation. These β-lactams increased the solubility of Cu2+ in the phosphate buffer. Ceftazidime and Cu2+ formed a complex with a similar geometry and gave rise to an organic radical. Ceftriaxone-Cu2+ complex appears to exhibit different geometry. All complexes showed 1:1 stoichiometry. Cefaclor reduced Cu2+ to Cu1+ that further reacted with molecular oxygen to produce hydrogen peroxide. Finally, meropenem underwent degradation in the presence of copper. The analysis of activity against Escherichia coli and Staphylococcus aureus showed that the effects of meropenem, amoxicillin, ampicillin, and ceftriaxone were significantly hindered in the presence of copper ions. The interactions with copper ions should be taken into account regarding the problem of antibiotic resistance and in the selection of the most efficient antimicrobial therapy for patients with altered copper homeostasis.
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Affiliation(s)
- Bojana Božić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, P.O. Box 38, 11000 Belgrade, Serbia
| | - Jelena Korać
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade, Serbia
| | - Dalibor M Stanković
- The Vinča Institute of Nuclear Sciences, University of Belgrade, POB 522, 11001 Belgrade, Serbia; Innovation Center of the Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade 11000, Serbia
| | - Marina Stanić
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade, Serbia
| | - Mima Romanović
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade, Serbia
| | - Jelena Bogdanović Pristov
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade, Serbia
| | - Snežana Spasić
- Innovation Center of the Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade 11000, Serbia
| | - Ana Popović-Bijelić
- EPR Laboratory, Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Ivan Spasojević
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade, Serbia.
| | - Milica Bajčetić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, P.O. Box 38, 11000 Belgrade, Serbia; Clinical Pharmacology Unit, University Children's Hospital, 11000 Belgrade, Serbia
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16
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El-Gamel NE, Ali KA. Synthesis, spectroscopic characterization, DFT calculations and biological evaluation of benzothiazole derivative bearing Mn(II) and Ni(II) metal ions. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Poole K. At the Nexus of Antibiotics and Metals: The Impact of Cu and Zn on Antibiotic Activity and Resistance. Trends Microbiol 2017; 25:820-832. [PMID: 28526548 DOI: 10.1016/j.tim.2017.04.010] [Citation(s) in RCA: 182] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 04/18/2017] [Accepted: 04/26/2017] [Indexed: 12/14/2022]
Abstract
Environmental influences on antibiotic activity and resistance can wreak havoc with in vivo antibiotic efficacy and, ultimately, antimicrobial chemotherapy. In nature, bacteria encounter a variety of metal ions, particularly copper (Cu) and zinc (Zn), as contaminants in soil and water, as feed additives in agriculture, as clinically-used antimicrobials, and as components of human antibacterial responses. Importantly, there is a growing body of evidence for Cu/Zn driving antibiotic resistance development in metal-exposed bacteria, owing to metal selection of genetic elements harbouring both metal and antibiotic resistance genes, and metal recruitment of antibiotic resistance mechanisms. Many classes of antibiotics also form complexes with metal cations, including Cu and Zn, and this can hinder (or enhance) antibiotic activity. This review highlights the ways in which Cu/Zn influence antibiotic resistance development and antibiotic activity, and in so doing impact in vivo antibiotic efficacy.
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Affiliation(s)
- Keith Poole
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada, K7L 3N6.
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18
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Cardiano P, Crea F, Foti C, Giuffrè O, Sammartano S. Potentiometric, UV and 1H NMR study on the interaction of Cu 2+ with ampicillin and amoxicillin in aqueous solution. Biophys Chem 2017; 224:59-66. [PMID: 28410941 DOI: 10.1016/j.bpc.2017.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 03/27/2017] [Accepted: 04/03/2017] [Indexed: 12/13/2022]
Abstract
A potentiometric, UV and 1H NMR study on Cu2+-ampicillin [(2S,5R,6R)-6-([(2R)-2-amino-2-phenylacetyl]amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid] and -amoxicillin [(2S,5R,6R)-6-{[(2R)-2-amino-2-(4-hydroxyphenyl)-acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-24-carboxylic acid] systems in NaCl aqueous solution at I=0.15molL-1 and t=25°C is reported. On the basis of potentiometric results two speciation models were proposed for each system. It was found that spectrophotometric and 1H NMR measurements are essential for selecting the most reliable speciation models. They included ML, MLOH and ML(OH)2 species in both systems and, only for Cu2+-ampicillin, also MLH species. The stability constants obtained by UV and 1H NMR titrations were comparable to the ones calculated by potentiometry. The sequestering ability of the ligands under study towards Cu2+ by pL0.5 empiric parameter (ligand concentration required to sequester 50% of the metal cation present in traces) at several pH values was calculated as well. For ampicillin and amoxicillin, pL0.5=7.19 and 6.67, respectively, at physiological pH, I=0.15molL-1 and t=25°C were obtained.
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Affiliation(s)
- Paola Cardiano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Francesco Crea
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Silvio Sammartano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
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19
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Karpin GW, Morris DM, Ngo MT, Merola JS, Falkinham III JO. Transition metal diamine complexes with antimicrobial activity against Staphylococcus aureus and methicillin-resistant S. aureus (MRSA). MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00228a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Curves showing two different trials of killing a MRSA strain with [Cp*IrCl(cis-1,2-diaminocyclohexane)]Cl.
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Affiliation(s)
- G. W. Karpin
- Virginia Tech Center for Drug Discovery
- Blacksburg
- USA
- Department of Chemistry
- Virginia Tech
| | - D. M. Morris
- Virginia Tech Center for Drug Discovery
- Blacksburg
- USA
- Department of Chemistry
- Virginia Tech
| | - M. T. Ngo
- Virginia Tech Center for Drug Discovery
- Blacksburg
- USA
- Department of Chemistry
- Virginia Tech
| | - J. S. Merola
- Virginia Tech Center for Drug Discovery
- Blacksburg
- USA
- Department of Chemistry
- Virginia Tech
| | - J. O. Falkinham III
- Virginia Tech Center for Drug Discovery
- Blacksburg
- USA
- Department of Biological Sciences
- Virginia Tech
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20
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Soldati R, Aliprandi A, Mauro M, De Cola L, Giacomini D. β-Lactam Bioconjugates Bearing Luminescent Platinum(II) Tags: Synthesis and Photophysical Characterization. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402740] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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21
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Refat MS, Al-Maydama HMA, Al-Azab FM, Amin RR, Jamil YMS. Synthesis, thermal and spectroscopic behaviors of metal-drug complexes: La(III), Ce(III), Sm(III) and Y(III) amoxicillin trihydrate antibiotic drug complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 128:427-446. [PMID: 24682059 DOI: 10.1016/j.saa.2014.02.160] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 02/01/2014] [Accepted: 02/21/2014] [Indexed: 06/03/2023]
Abstract
The metal complexes of Amoxicillin trihydrate with La(III), Ce(III), Sm(III) and Y(III) are synthesized with 1:1 (metal:Amox) molar ratio. The suggested formula structures of the complexes are based on the results of the elemental analyses, molar conductivity, (infrared, UV-visible and fluorescence) spectra, effective magnetic moment in Bohr magnetons, as well as the thermal analysis (TG), and characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The results obtained suggested that Amoxicillin reacted with metal ions as tridentate ligands, coordinating the metal ion through its amino, imino, and β-lactamic carbonyl. The kinetic thermodynamic parameters such as: Ea, ΔH(*), ΔS(*) and ΔG(*) were estimated from the DTG curves.
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Affiliation(s)
- Moamen S Refat
- Department of Chemistry, Faculty of Science, Taif University, Al-Hawiah, P.O. Box 888, Taif 21974, Saudi Arabia; Department of Chemistry, Faculty of Science, Port Said University, Port Said, Egypt.
| | | | - Fathi M Al-Azab
- Department of Chemistry, Faculty of Science, Sana'a University, Yemen
| | | | - Yasmin M S Jamil
- Department of Chemistry, Faculty of Science, Sana'a University, Yemen
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22
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Muntaner JG, Casarrubios L, Sierra MA. Synthesis of new bioorganometallic Ir- and Rh-complexes having β-lactam containing ligands. Org Biomol Chem 2014; 12:286-97. [DOI: 10.1039/c3ob41354c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Marques CS, Burke AJ. Ethyl 2,2-bis(4-methylphenylsulfonamido)acetate to aromatic α-amino acids: stable substrates for catalytic arylation reactions. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Baeza B, Casarrubios L, Sierra MA. Towards a General Synthesis of 3-Metal-Substituted β-Lactams. Chemistry 2013; 19:11536-40. [DOI: 10.1002/chem.201301114] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 06/10/2013] [Indexed: 11/07/2022]
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25
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Stokowa-Sołtys K, Gaggelli N, Nagaj J, Szczepanik W, Ciesiołka J, Wrzesiński J, Górska A, Gaggelli E, Valensin G, Jeżowska-Bojczuk M. High affinity of copper(II) towards amoxicillin, apramycin and ristomycin. Effect of these complexes on the catalytic activity of HDV ribozyme. J Inorg Biochem 2013; 124:26-34. [DOI: 10.1016/j.jinorgbio.2013.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 02/28/2013] [Accepted: 03/04/2013] [Indexed: 12/18/2022]
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26
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Qian SS, Chen YH, Long QP, Wang F, Zhu HL. Syntheses, crystal structures, and antimicrobial activities of nickel(II) and cadmium(II) complexes with 4-methylsulfonyl cinnamate and diamines. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.744001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Shao-Song Qian
- a School of Life Sciences, Shandong University of Technology , Zibo 255049 , China
| | - Yue-Hu Chen
- a School of Life Sciences, Shandong University of Technology , Zibo 255049 , China
| | - Qi-Peng Long
- a School of Life Sciences, Shandong University of Technology , Zibo 255049 , China
| | - Fang Wang
- a School of Life Sciences, Shandong University of Technology , Zibo 255049 , China
| | - Hai-Liang Zhu
- a School of Life Sciences, Shandong University of Technology , Zibo 255049 , China
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27
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Karabocek N, Armutcu M, Karabocek S, Tanak H, Isik S, Baskan O. Synthesis and Structural and Biochemical Activity Studies of Dioxime Ligand and its Mononuclear Cu(II), Ni(II), and Co(II) Complexes. ACTA ACUST UNITED AC 2011. [DOI: 10.1080/15533174.2011.591878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Nevin Karabocek
- a Department of Chemistry , Karadeniz Technical University , Trabzon, Turkey
| | - Mine Armutcu
- a Department of Chemistry , Karadeniz Technical University , Trabzon, Turkey
| | - Serdar Karabocek
- a Department of Chemistry , Karadeniz Technical University , Trabzon, Turkey
| | - Hasan Tanak
- b Department of Physics, Faculty of Arts and Sciences , Amasya University , Amasya, Turkey
| | - Samil Isik
- c Department of Physics, Faculty of Arts and Sciences , Ondokuz Mayıs University , Kurupelit, Samsun, Turkey
| | - Oya Baskan
- a Department of Chemistry , Karadeniz Technical University , Trabzon, Turkey
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28
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Saghatforoush L, Valencia L, Chalabian F, Ghammamy S, Khaledi L. Synthesis, crystal structure, and biological activity of 4′-chloro-2,2′ : 6′,2″-terpyridine (Cltpy) as tridentate ligand in a Cd(II) complex. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.619008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- L.A. Saghatforoush
- a Chemistry Department , Payame Noor University , 19395-4697 Tehran, Islam Republic of Iran
| | - L. Valencia
- b Departamento de Quimica Inorganica , Facultad de Quimica, Universidade de Vigo , 36310 Vigo Pontevedra, Spain
| | - F. Chalabian
- c Department of Biology , North Tehran Branch, Islamic Azad University , Tehran, Iran
| | - S. Ghammamy
- d Department of Chemistry , Ardabil Branch, Islamic Azad University , Ardabil, Iran
| | - L.Z. Khaledi
- a Chemistry Department , Payame Noor University , 19395-4697 Tehran, Islam Republic of Iran
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Bergamini F, Abbehausen C, Magalhães A, Lustri W, Gomes A, Gozzo F, Corbi P. Synthesis, spectroscopic studies, and preliminary antibacterial assays of a palladium(II) complex with 2-mercaptothiazoline. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.613463] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- F.R.G. Bergamini
- a Institute of Chemistry, University of Campinas – UNICAMP , P.O. Box 6154, 13083-970, Campinas-SP , Brazil
| | - C. Abbehausen
- a Institute of Chemistry, University of Campinas – UNICAMP , P.O. Box 6154, 13083-970, Campinas-SP , Brazil
| | - A. Magalhães
- a Institute of Chemistry, University of Campinas – UNICAMP , P.O. Box 6154, 13083-970, Campinas-SP , Brazil
| | - W.R. Lustri
- b Department of Biological and Health Sciences , UNIARA, 14801-320, Araraquara-SP , Brazil
| | - A.F. Gomes
- a Institute of Chemistry, University of Campinas – UNICAMP , P.O. Box 6154, 13083-970, Campinas-SP , Brazil
| | - F.C. Gozzo
- a Institute of Chemistry, University of Campinas – UNICAMP , P.O. Box 6154, 13083-970, Campinas-SP , Brazil
| | - P.P. Corbi
- a Institute of Chemistry, University of Campinas – UNICAMP , P.O. Box 6154, 13083-970, Campinas-SP , Brazil
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30
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Castello W, Spera M, Gomes A, Gozzo F, Lustri W, Formiga A, Corbi P. Synthesis, spectroscopic characterization, and antibacterial assays in vitro of a new platinum(II) complex with methionine sulfoxide. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.540325] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- W.S. Castello
- a Instituto de Química, Universidade Estadual de Campinas – UNICAMP, CP 6154 , CEP 13083-970 Campinas, SP, Brazil
| | - M.B.M. Spera
- a Instituto de Química, Universidade Estadual de Campinas – UNICAMP, CP 6154 , CEP 13083-970 Campinas, SP, Brazil
| | - A.F. Gomes
- a Instituto de Química, Universidade Estadual de Campinas – UNICAMP, CP 6154 , CEP 13083-970 Campinas, SP, Brazil
| | - F.C. Gozzo
- a Instituto de Química, Universidade Estadual de Campinas – UNICAMP, CP 6154 , CEP 13083-970 Campinas, SP, Brazil
| | - W.R. Lustri
- b Centro Universitário de Araraquara – UNIARA, Associação São Bento de Ensino , Rua Voluntários da Pátria, 1309, CEP 14801-320 Araraquara, SP, Brazil
| | - A.L.B. Formiga
- a Instituto de Química, Universidade Estadual de Campinas – UNICAMP, CP 6154 , CEP 13083-970 Campinas, SP, Brazil
| | - P.P. Corbi
- a Instituto de Química, Universidade Estadual de Campinas – UNICAMP, CP 6154 , CEP 13083-970 Campinas, SP, Brazil
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31
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Jadhav SM, Shelke VA, Munde AS, Shankarwar SG, Patharkar VR, Chondhekar TK. Synthesis, characterization, potentiometry, and antimicrobial studies of transition metal complexes of a tridentate ligand. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.529136] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sarika Manohar Jadhav
- a Department of Chemistry , Dr. Babasaheb Ambedkar Marathwada University , Aurangabad 431004, Maharashtra, India
| | - Vinod Ambadas Shelke
- a Department of Chemistry , Dr. Babasaheb Ambedkar Marathwada University , Aurangabad 431004, Maharashtra, India
| | - Achut Sadashiv Munde
- b Department of Chemistry , Milind College of Science , Aurangabad 431004, Maharashtra, India
| | - Sunil Govind Shankarwar
- a Department of Chemistry , Dr. Babasaheb Ambedkar Marathwada University , Aurangabad 431004, Maharashtra, India
| | - Vaishali Ramrao Patharkar
- a Department of Chemistry , Dr. Babasaheb Ambedkar Marathwada University , Aurangabad 431004, Maharashtra, India
| | - Trimbak Kamaji Chondhekar
- a Department of Chemistry , Dr. Babasaheb Ambedkar Marathwada University , Aurangabad 431004, Maharashtra, India
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32
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Xu SP, Shi L, Pei Y, Yang Y, Xu G, Zhu HL. Synthesis and antibacterial activities of copper(II) with [(2-hydroxy-3,5-diiodo-benzylidene)-amino]-acetic acid. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.514338] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Suo-Ping Xu
- a School of Chemistry and Chemical Engineering, Xuzhou Normal University , Xuzhou 221116, China
- b School of Life Sciences, Nanjing University , Nanjing 210093, China
| | - Lei Shi
- b School of Life Sciences, Nanjing University , Nanjing 210093, China
| | - Yuan Pei
- a School of Chemistry and Chemical Engineering, Xuzhou Normal University , Xuzhou 221116, China
| | - Ying Yang
- b School of Life Sciences, Nanjing University , Nanjing 210093, China
| | - Guo Xu
- a School of Chemistry and Chemical Engineering, Xuzhou Normal University , Xuzhou 221116, China
| | - Hai-Liang Zhu
- a School of Chemistry and Chemical Engineering, Xuzhou Normal University , Xuzhou 221116, China
- b School of Life Sciences, Nanjing University , Nanjing 210093, China
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