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Fudulu A, Olar R, Maxim C, Scăeţeanu GV, Bleotu C, Matei L, Chifiriuc MC, Badea M. New Cobalt (II) Complexes with Imidazole Derivatives: Antimicrobial Efficiency against Planktonic and Adherent Microbes and In Vitro Cytotoxicity Features. Molecules 2020; 26:molecules26010055. [PMID: 33374438 PMCID: PMC7796409 DOI: 10.3390/molecules26010055] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 01/28/2023] Open
Abstract
Three novel Co(II) complexes of the type [Co(C4H5O2)2L2] (where C4H5O2 is methacrylate anion; L = C3H4N2 (imidazole; HIm) (1), C4H6N2 (2-methylimidazole; 2-MeIm) (2), C5H8N2 (2-ethylimidazole; 2-EtIm) (3)) have been synthesized and characterized by elemental analysis, IR and UV-Vis spectroscopic techniques, thermal analysis and single crystal X-ray diffraction. X-ray crystallography revealed for complexes (1) and (2) distorted trigonal bipyramid stereochemistry for Co(II), meanwhile for complex (3) evidenced that the unit cell comprises three molecular units with interesting structural features. In each unit, both stereochemistry adopted by metallic ion and coordination modes of carboxylate anions are different. The screening of antimicrobial activity revealed that Candida albicans planktonic cells were the most susceptible, with minimal inhibitory concentration (MIC) values of 7.8 μg/mL for complexes (1) and (2) and 15.6 μg/mL for complex (3). Complexes (1) and (2) proved to be more active than complex (3) against the tested bacterial strains, both in planktonic and biofilm growth state, with MIC and minimal biofilm eradication concentration (MBEC) values ranging from 15.6 to 62.5 μg/mL, the best antibacterial effects being noticed against Staphylococcus aureus and Pseudomonas aeruginosa. Remarkably, the MBEC values obtained for the four tested bacterial strains were either identical or even lower than the MIC ones. The cytotoxicity assay indicated that the tested complexes affected the cellular cycle of HeLa, HCT-8, and MG63 cells, probably by inhibiting the expression of vimentin and transient receptor potential canonical 1 (TRPC1). The obtained biological results recommend these complexes as potential candidates for the development of novel anti-biofilm agents.
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Affiliation(s)
- Alina Fudulu
- Stefan S. Nicolau Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (A.F.); (C.B.); (L.M.)
| | - Rodica Olar
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania; (R.O.); (C.M.)
| | - Cătălin Maxim
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania; (R.O.); (C.M.)
| | - Gina Vasile Scăeţeanu
- Department of Soil Sciences, University of Agronomical Sciences and Veterinary Medicine, 59 Mărăști Str., 011464 Bucharest, Romania;
| | - Coralia Bleotu
- Stefan S. Nicolau Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (A.F.); (C.B.); (L.M.)
| | - Lilia Matei
- Stefan S. Nicolau Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (A.F.); (C.B.); (L.M.)
| | - Mariana Carmen Chifiriuc
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor Str., 60101 Bucharest, Romania;
- Academy of Romanian Scientists, 010071 Bucharest, Romania
| | - Mihaela Badea
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania; (R.O.); (C.M.)
- Correspondence: ; Tel.: +40-072-314-0111
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Zarafu I, Matei L, Bleotu C, Ionita P, Tatibouët A, Păun A, Nicolau I, Hanganu A, Limban C, Nuta DC, Nemeș RM, Diaconu CC, Radulescu C. Synthesis, Characterization, and Biologic Activity of New Acyl Hydrazides and 1,3,4-Oxadiazole Derivatives. Molecules 2020; 25:E3308. [PMID: 32708236 PMCID: PMC7396991 DOI: 10.3390/molecules25143308] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/10/2020] [Accepted: 07/21/2020] [Indexed: 02/01/2023] Open
Abstract
Starting from isoniazid and carboxylic acids as precursors, thirteen new hydrazides and 1,3,4-oxadiazoles of 2-(4-substituted-phenoxymethyl)-benzoic acids were synthesized and characterized by appropriate means. Their biological properties were evaluated in terms of apoptosis, cell cycle blocking, and drug metabolism gene expression on HCT-8 and HT-29 cell lines. In vitro antimicrobial tests were performed by the microplate Alamar Blue assay for the anti-mycobacterial activities and an adapted agar disk diffusion technique for other non-tubercular bacterial strains. The best antibacterial activity (anti-Mycobacterium tuberculosis effects) was proved by 9. Compounds 7, 8, and 9 determined blocking of G1 phase. Compound 7 proved to be toxic, inducing apoptosis in 54% of cells after 72 h, an effect that can be predicted by the increased expression of mRNA caspases 3 and 7 after 24 h. The influence of compounds on gene expression of enzymes implicated in drug metabolism indicates that synthesized compounds could be metabolized via other pathways than NAT2, spanning adverse effects of isoniazid. Compound 9 had the best antibacterial activity, being used as a disinfectant agent. Compounds 7, 8, and 9, seemed to have antitumor potential. Further studies on the action mechanism of these compounds on the cell cycle may bring new information regarding their biological activity.
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Affiliation(s)
- Irina Zarafu
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Lilia Matei
- “Stefan S Nicolau” Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (L.M.); (C.B.); (C.C.D.)
- Research Institute of the University of Bucharest (ICUB), Life, Environmental and Earth Sciences Division, University of Bucharest, 060023 Bucharest, Romania;
| | - Coralia Bleotu
- “Stefan S Nicolau” Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (L.M.); (C.B.); (C.C.D.)
- Research Institute of the University of Bucharest (ICUB), Life, Environmental and Earth Sciences Division, University of Bucharest, 060023 Bucharest, Romania;
| | - Petre Ionita
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Arnaud Tatibouët
- Institute of Organic and Analytical Chemistry ICOA-UMR7311, University of Orleans, 45067 Orleans, France;
| | - Anca Păun
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Ioana Nicolau
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Anamaria Hanganu
- Research Institute of the University of Bucharest (ICUB), Life, Environmental and Earth Sciences Division, University of Bucharest, 060023 Bucharest, Romania;
- Institute of Organic Chemistry “C.D. Nenitescu” of the Romanian Academy, 060023 Bucharest, Romania
| | - Carmen Limban
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (C.L.); (D.C.N.)
| | - Diana Camelia Nuta
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (C.L.); (D.C.N.)
| | - Roxana Maria Nemeș
- National Institute of Pneumology Marius Nasta, 050152 Bucharest, Romania;
| | - Carmen Cristina Diaconu
- “Stefan S Nicolau” Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (L.M.); (C.B.); (C.C.D.)
| | - Cristiana Radulescu
- Faculty of Sciences and Arts, “Valahia” University of Targoviste, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13004 Targoviste, Romania
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Paprocka R, Wiese-Szadkowska M, Helmin-Basa A, Mazur L, Kutkowska J, Michałkiewicz J, Modzelewska-Banachiewicz B, Pazderski L. Synthesis and evaluation of new amidrazone-derived hydrazides as a potential anti-inflammatory agents. MONATSHEFTE FUR CHEMIE 2018; 149:1493-1500. [PMID: 30100633 PMCID: PMC6060958 DOI: 10.1007/s00706-018-2197-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 04/03/2018] [Indexed: 11/15/2022]
Abstract
ABSTRACT The series of new hydrazide derivatives were synthesized in reactions of N3-substituted amidrazones with cyclic anhydrides as potential anti-inflammatory and antibacterial agents. The compounds were characterized by 1H-13C two-dimensional NMR techniques, which revealed the presence of two tautomeric forms in DMSO-d6 solutions, while the molecular structure of one species was confirmed by single-crystal X-ray diffraction. The anti-inflammatory effects of hydrazides on peripheral blood mononuclear cells were experimentally evaluated. Three compounds showed antiproliferative activity comparable to ibuprofen. One derivative demonstrated strong reduction of lymphocyte proliferation stimulated by anti-CD3 antibody (by 90%) and PHA, as well as low cell toxicity. The obtained compounds exhibited relatively weak antibacterial activity; they were more effective against Gram-positive bacterial strains. GRAPHICAL ABSTRACT
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Affiliation(s)
- Renata Paprocka
- Department of Organic Chemistry, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | | | - Anna Helmin-Basa
- Department of Immunology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Liliana Mazur
- Faculty of Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - Jolanta Kutkowska
- Department of Genetics and Microbiology, Maria Curie-Sklodowska University, Lublin, Poland
| | - Jacek Michałkiewicz
- Department of Immunology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
- Department of Clinical Microbiology and Immunology, The Children’s Memorial Health Institute, Warsaw, Poland
| | | | - Leszek Pazderski
- Department of Analytical Chemistry and Applied Spectroscopy, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Toruń, Poland
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New lipophilic isoniazid derivatives and their 1,3,4-oxadiazole analogues: Synthesis, antimycobacterial activity and investigation of their mechanism of action. Eur J Med Chem 2018; 151:824-835. [PMID: 29679902 DOI: 10.1016/j.ejmech.2018.04.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/27/2018] [Accepted: 04/08/2018] [Indexed: 01/31/2023]
Abstract
The development of novel drugs is essential for the treatment of tuberculosis and other mycobacterial infections in future. A series of N-alkyl-2-isonicotinoylhydrazine-1-carboxamides was synthesized from isoniazid (INH) and then cyclized to N-alkyl-5-(pyridin-4-yl)-1,3,4-oxadiazole-2-amines. All derivatives were characterised spectroscopically. The compounds were screened for their in vitro antimycobacterial activity against susceptible and multidrug-resistant Mycobacterium tuberculosis (Mtb.) and nontuberculous mycobacteria (NTM; M. avium, M. kansasii). The most active carboxamides were substituted by a short n-alkyl, their activity was comparable to INH with minimum inhibitory concentrations (MICs) against Mtb. of 0.5-2 μM. Moreover, they are non-toxic for HepG2, and some of them are highly active against INH-resistant NTM (MICs ≥4 μM). Their cyclization to 1,3,4-oxadiazoles did not increase the activity. The experimentally proved mechanism of action of 2-isonicotinoylhydrazine-1-carboxamides consists of the inhibition of enoyl-ACP reductase (InhA) in a way similar to INH, which is blocking the biosynthesis of mycolic acids. N-Dodecyl-5-(pyridin-4-yl)-1,3,4-oxadiazol-2-amine as the most efficacious oxadiazole inhibits growth of both susceptible and drug-resistant Mtb. strains with uniform MIC values of 4-8 μM with no cross-resistance to antitubercular drugs including INH. The mechanism of action is not elucidated but it is different from INH. Obtained results qualify these promising derivatives for further investigation.
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Abrahams KA, Chung CW, Ghidelli-Disse S, Rullas J, Rebollo-López MJ, Gurcha SS, Cox JAG, Mendoza A, Jiménez-Navarro E, Martínez-Martínez MS, Neu M, Shillings A, Homes P, Argyrou A, Casanueva R, Loman NJ, Moynihan PJ, Lelièvre J, Selenski C, Axtman M, Kremer L, Bantscheff M, Angulo-Barturen I, Izquierdo MC, Cammack NC, Drewes G, Ballell L, Barros D, Besra GS, Bates RH. Identification of KasA as the cellular target of an anti-tubercular scaffold. Nat Commun 2016; 7:12581. [PMID: 27581223 PMCID: PMC5025758 DOI: 10.1038/ncomms12581] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 07/14/2016] [Indexed: 12/12/2022] Open
Abstract
Phenotypic screens for bactericidal compounds are starting to yield promising hits against tuberculosis. In this regard, whole-genome sequencing of spontaneous resistant mutants generated against an indazole sulfonamide (GSK3011724A) identifies several specific single-nucleotide polymorphisms in the essential Mycobacterium tuberculosis β-ketoacyl synthase (kas) A gene. Here, this genomic-based target assignment is confirmed by biochemical assays, chemical proteomics and structural resolution of a KasA-GSK3011724A complex by X-ray crystallography. Finally, M. tuberculosis GSK3011724A-resistant mutants increase the in vitro minimum inhibitory concentration and the in vivo 99% effective dose in mice, establishing in vitro and in vivo target engagement. Surprisingly, the lack of target engagement of the related β-ketoacyl synthases (FabH and KasB) suggests a different mode of inhibition when compared with other Kas inhibitors of fatty acid biosynthesis in bacteria. These results clearly identify KasA as the biological target of GSK3011724A and validate this enzyme for further drug discovery efforts against tuberculosis.
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Affiliation(s)
- Katherine A. Abrahams
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Chun-wa Chung
- GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, UK
| | | | - Joaquín Rullas
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - María José Rebollo-López
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Sudagar S. Gurcha
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Jonathan A. G. Cox
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Alfonso Mendoza
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Elena Jiménez-Navarro
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | | | - Margarete Neu
- GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, UK
| | | | - Paul Homes
- GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, UK
| | | | - Ruth Casanueva
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Nicholas J. Loman
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Patrick J. Moynihan
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Joël Lelièvre
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Carolyn Selenski
- GlaxoSmithKline, 709 Swedeland Road, PO Box 1539, King of Prussia, Pennsylvania 19406-0939, USA
| | - Matthew Axtman
- GlaxoSmithKline, 709 Swedeland Road, PO Box 1539, King of Prussia, Pennsylvania 19406-0939, USA
| | - Laurent Kremer
- Centre National de la Recherche Scientifique FRE 3689, Centre d'études d'agents Pathogènes et Biotechnologies pour la Santé, Université de Montpellier, 1919 route de Mende, 34293 Montpellier, France
- INSERM, CPBS, 34293 Montpellier, France
| | - Marcus Bantscheff
- Cellzome—a GSK Company, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Iñigo Angulo-Barturen
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Mónica Cacho Izquierdo
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Nicholas C. Cammack
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Gerard Drewes
- Cellzome—a GSK Company, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Lluis Ballell
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - David Barros
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
| | - Gurdyal S. Besra
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Robert H. Bates
- Diseases of the Developing World, GlaxoSmithKline, Severo Ochoa 2, Tres Cantos, 28760 Madrid, Spain
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Chans GM, Nieto-Camacho A, Ramírez-Apan T, Hernández-Ortega S, Álvarez-Toledano C, Gómez E. Synthetic, Spectroscopic, Crystallographic, and Biological Studies of Seven-Coordinated Diorganotin(IV) Complexes Derived from Schiff Bases and Pyridinic Carboxylic Acids. Aust J Chem 2016. [DOI: 10.1071/ch15344] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The synthesis and characterisation of diorganotin(iv) monomeric derivatives of pyridine Schiff bases and pyridinic carboxylic acids are reported. All complexes were characterised by mass spectrometry, elemental analyses, IR spectra, and multinuclear NMR analyses. Among them, complexes 5a, 5d, 5e, 5g, and 6a were also confirmed by X-ray crystallography diffraction analyses, which led to establishing that the tin atom is seven-coordinated and has a distorted pentagonal–bipyramidal coordination environment in the solid state and also revealed that both ligands occupy the equatorial positions and the organic substituents the axial positions. The antioxidant activity of the synthetic derivatives towards 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) as well as the thiobarbituric acid reactive substances (TBARS) assay were determined, and were compared with standard antioxidants, showing a dose-dependent activity in both cases. A prominent response was obtained depending on the substituent. The anti-inflammatory activity was also evaluated on a 12-O-tetradecanoylphorbol-13-acetate (TPA) model of induced acute inflammation. The results of the biological tests are discussed in terms of structural characteristics.
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