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Masoud MS, Yacout GA, Abd-El-Khalek BA, Ramadan AM. Synthesis, Physicochemical Characterization, Biological Assessment, and Molecular Docking Study of Some Metal Complexes of Alloxan and Ninhydrin as Alterdentate Ligands. J Inorg Organomet Polym Mater 2023; 33:1-18. [PMID: 37359388 PMCID: PMC10149045 DOI: 10.1007/s10904-023-02661-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 04/11/2023] [Indexed: 06/28/2023]
Abstract
A series of transition metal complexes of alloxan monohydrate (H2L1) and ninhydrin (H2L2) have been prepared where metal ions are Fe(III), Co(II), Ni(II), Cu(II), Zr(IV), and Mo(VI). Different microanalytical techniques, spectroscopic methods, and magnetic studies were applied to assign the mode of bonding and elucidate the structure of complexes. All solid complexes are of 1:1 (M:L) stoichiometry and octahedral geometry except nickel (II) complexes exist in a tetrahedral geometry. FTIR spectral interpretation reveals that HL1 coordinates to the central metal ion in a bidentate ON pattern, whereas HL2 behaves as an alterdentate ligand through hydroxyl oxygen and carbonyl oxygen either C(1) = O or C(3) = O. The thermal behavior of some complexes was followed up to 700 °C by different techniques (TGA, DTA, and DSC) where decomposition stages progress in complicated mechanisms and are ended by the formation of metal oxide residue. Besides, biological screening involving antioxidant, antibacterial, and antifungal for ligands and some of their complexes was done. Moreover, four examined metal complexes displayed anticancer activity against hepatocellular carcinoma cells (HepG-2) but to different degrees. According to the IC50 values, Cu-ninhydrin complex, [Cu(HL2)(H2O)4].Cl has a better potency impact in comparison with cisplatin which was used as a reference control. This is in harmony with the molecular docking simulation outcomes that predicted a good binding propensity of the Cu-ninhydrin complex with hepatocellular carcinoma protein (2jrs). Therefore, the Cu-ninhydrin complex should be deemed as a potential chemotherapeutic agent for hepatocellular cancer. Graphical Abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10904-023-02661-5.
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Affiliation(s)
- Mamdouh S. Masoud
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Alexandria, 21321 Egypt
| | - Galila A. Yacout
- Biochemistry Department, Faculty of Science, Alexandria University, P.O. Box 21511, Alexandria, Egypt
| | - Bassant A. Abd-El-Khalek
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Alexandria, 21321 Egypt
| | - Ahmed M. Ramadan
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Alexandria, 21321 Egypt
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Mo D, Song X, Wu J, Jaiswal Y, Guan Y, Zhang Y, Shen Y, Bian H. Synthesis, characterization, superoxide dismutase, and antimicrobial activities of Co (II) complexes with Schiff base ligand and their hybrid proteins. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dan Mo
- Key Laboratory of Chemistry and Engineering of Forest Products (State Ethnic Affairs Commission), Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering Guangxi University for Nationalities Nanning China
| | - Xun Song
- College of Pharmacy Shenzhen Technology University Shenzhen China
| | - Jiri Wu
- Key Laboratory of Chemistry and Engineering of Forest Products (State Ethnic Affairs Commission), Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering Guangxi University for Nationalities Nanning China
| | - Yogini Jaiswal
- Center for Excellence in Post Harvest Technologies North Carolina Agricultural and Technical State University Kannapolis North Carolina USA
| | - Yifu Guan
- Key Laboratory of Chemistry and Engineering of Forest Products (State Ethnic Affairs Commission), Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering Guangxi University for Nationalities Nanning China
| | - Yuzhen Zhang
- Key Laboratory of Chemistry and Engineering of Forest Products (State Ethnic Affairs Commission), Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering Guangxi University for Nationalities Nanning China
| | - Yunjun Shen
- Key Laboratory of Chemistry and Engineering of Forest Products (State Ethnic Affairs Commission), Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering Guangxi University for Nationalities Nanning China
| | - Hedong Bian
- Key Laboratory of Chemistry and Engineering of Forest Products (State Ethnic Affairs Commission), Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering Guangxi University for Nationalities Nanning China
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Ramadan AM, Bayoumi HA, Elsamra RMI. Synthesis, characterization, biological evaluation, and molecular docking approach of nickel (II) complexes containing O, N‐donor chelation pattern of sulfonamide‐based Schiff bases. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ahmed M. Ramadan
- Chemistry Department, Faculty of Science Alexandria University Alexandria Egypt
| | - Hoda A. Bayoumi
- Chemistry Department, Girls College for Arts, Science and Education Ain‐Shams University Cairo Egypt
| | - Rehab M. I. Elsamra
- Chemistry Department, Faculty of Science Alexandria University Alexandria Egypt
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Yaşar Ü, Gönül İ, Türkeş C, Demir Y, Beydemir Ş. Transition‐Metal Complexes of Bidentate Schiff‐Base Ligands: In Vitro and In Silico Evaluation as Non‐Classical Carbonic Anhydrase and Potential Acetylcholinesterase Inhibitors. ChemistrySelect 2021. [DOI: 10.1002/slct.202102082] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ümit Yaşar
- Department of Laboratory and Veterinary Health Nihat Delibalta Göle Vocational High School Ardahan University Ardahan 75700 Turkey
| | - İlyas Gönül
- Department of Chemistry Faculty of Arts and Science Cukurova University Adana 01330 Turkey
| | - Cüneyt Türkeş
- Department of Biochemistry Faculty of Pharmacy Erzincan Binali Yıldırım University Erzincan 24100 Turkey
| | - Yeliz Demir
- Department of Pharmacy Services Nihat Delibalta Göle Vocational High School Ardahan University Ardahan 75700 Turkey
| | - Şükrü Beydemir
- Department of Biochemistry Faculty of Pharmacy Anadolu University Eskişehir 26470 Turkey
- The Rectorate of Bilecik Şeyh Edebali University Bilecik 11230 Turkey
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Llanos MA, Sbaraglini ML, Villalba ML, Ruiz MD, Carrillo C, Alba Soto C, Talevi A, Angeli A, Parkkila S, Supuran CT, Gavernet L. A structure-based approach towards the identification of novel antichagasic compounds: Trypanosoma cruzi carbonic anhydrase inhibitors. J Enzyme Inhib Med Chem 2020; 35:21-30. [PMID: 31619095 PMCID: PMC6807911 DOI: 10.1080/14756366.2019.1677638] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/30/2019] [Accepted: 10/01/2019] [Indexed: 11/28/2022] Open
Abstract
Trypanosoma cruzi carbonic anhydrase (TcCA) has recently emerged as an interesting target for the design of new compounds to treat Chagas disease. In this study we report the results of a structure-based virtual screening campaign to identify novel and selective TcCA inhibitors. The combination of properly validated computational methodologies such as comparative modelling, molecular dynamics and docking simulations allowed us to find high potency hits, with KI values in the nanomolar range. The compounds also showed trypanocidal effects against T. cruzi epimastigotes and trypomastigotes. All the candidates are selective for inhibiting TcCA over the human isoform CA II, which is encouraging in terms of possible therapeutic safety and efficacy.
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Affiliation(s)
- Manuel A. Llanos
- Laboratory of Bioactive Research and Development (LIDeB), Medicinal Chemistry, Department of Biological Sciences, Faculty of Exact Sciences, National University of La Plata, Buenos Aires, Argentina
| | - María L. Sbaraglini
- Laboratory of Bioactive Research and Development (LIDeB), Medicinal Chemistry, Department of Biological Sciences, Faculty of Exact Sciences, National University of La Plata, Buenos Aires, Argentina
| | - María L. Villalba
- Laboratory of Bioactive Research and Development (LIDeB), Medicinal Chemistry, Department of Biological Sciences, Faculty of Exact Sciences, National University of La Plata, Buenos Aires, Argentina
| | - María D. Ruiz
- Instituto de Ciencias y Tecnología Dr. Cesar Milstein (ICT Milstein), Argentinean National Council of Scientific and Technical Research (CONICET), Buenos Aires, Argentina
| | - Carolina Carrillo
- Instituto de Ciencias y Tecnología Dr. Cesar Milstein (ICT Milstein), Argentinean National Council of Scientific and Technical Research (CONICET), Buenos Aires, Argentina
| | - Catalina Alba Soto
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPaM), UBA-CONICET, Buenos Aires, Argentina
| | - Alan Talevi
- Laboratory of Bioactive Research and Development (LIDeB), Medicinal Chemistry, Department of Biological Sciences, Faculty of Exact Sciences, National University of La Plata, Buenos Aires, Argentina
| | - Andrea Angeli
- Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Universita degli Studi di Firenze, Sesto Fiorentino, Florence, Italy
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland
| | - Claudiu T. Supuran
- Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Universita degli Studi di Firenze, Sesto Fiorentino, Florence, Italy
| | - Luciana Gavernet
- Laboratory of Bioactive Research and Development (LIDeB), Medicinal Chemistry, Department of Biological Sciences, Faculty of Exact Sciences, National University of La Plata, Buenos Aires, Argentina
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Synthesis and biological evaluation of novel aromatic and heterocyclic bis-sulfonamide Schiff bases as carbonic anhydrase I, II, VII and IX inhibitors. Bioorg Med Chem 2017; 25:3093-3097. [DOI: 10.1016/j.bmc.2017.03.063] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 03/27/2017] [Accepted: 03/29/2017] [Indexed: 11/22/2022]
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Durgun M, Turkmen H, Ceruso M, Supuran CT. Synthesis of 4-sulfamoylphenyl-benzylamine derivatives with inhibitory activity against human carbonic anhydrase isoforms I, II, IX and XII. Bioorg Med Chem 2016; 24:982-8. [PMID: 26803577 DOI: 10.1016/j.bmc.2016.01.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 01/08/2016] [Accepted: 01/09/2016] [Indexed: 11/27/2022]
Abstract
Imine derivatives were obtained by condensation of sulfanilamide with substituted aromatic aldehydes. The Schiff bases were thereafter reduced with sodium borohydride, leading to the corresponding amines, derivatives of 4-sulfamoylphenyl-benzylamine. These sulfonamides were investigated as inhibitors of the human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms hCA I and II (cytosolic isozymes), as well as hCA IX and XII (transmembrane, tumor-associated enzymes). We noted that the compounds incorporating secondary amine moieties showed a better inhibitory activity against all CA isozymes compared to the corresponding Schiff bases. Low nanomolar CA II, IX and XII inhibitors were detected, whereas the activity against hCA I was less potent. The secondary amines incorporating sulfonamide or similar zinc-binding groups, poorly investigated chemotypes for designing metalloenzyme inhibitors, may offer interesting opportunities in the field due to the facile preparation and possibility to explore a vast chemical space.
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Affiliation(s)
- Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, 63190 Sanliurfa, Turkey.
| | - Hasan Turkmen
- Department of Medical Pharmacology, Faculty of Medicine, Harran University, 63190 Sanliurfa, Turkey
| | - Mariangela Ceruso
- Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy; Università degli Studi di Firenze, Neurofarba Dept., Section of Pharmaceutical and Nutriceutical Sciences, Via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy.
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Nasr G, Petit E, Supuran CT, Winum JY, Barboiu M. Carbonic anhydrase II-induced selection of inhibitors from a dynamic combinatorial library of Schiff’s bases. Bioorg Med Chem Lett 2009; 19:6014-7. [PMID: 19796939 DOI: 10.1016/j.bmcl.2009.09.047] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2009] [Revised: 09/14/2009] [Accepted: 09/14/2009] [Indexed: 10/20/2022]
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Kilinc E, Gumgum B, Hamamci C, Aydin F. Stability-indicating high performance thin layer chromatographic determination of sulfanilamide in human urine. JOURNAL OF ANALYTICAL CHEMISTRY 2009. [DOI: 10.1134/s1061934809070090] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Asadi M, Mohammadi K, Esmaielzadeh S, Etemadi B, Fun HK. Some new Schiff base ligands giving a NNOS coordination sphere and their nickel(II) complexes: Synthesis, characterization and complex formation. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.03.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chohan ZH, Shaikh AU, Rauf A, Supuran CT. Antibacterial, antifungal and cytotoxic properties of novel N-substituted sulfonamides from 4-hydroxycoumarin. J Enzyme Inhib Med Chem 2008; 21:741-8. [PMID: 17252948 DOI: 10.1080/14756360600810340] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
A new series of 4-({[2, 4-dioxo-2H-chromen-3 (4H)-ylidene] methyl} amino) sulfonamides have been obtained by the condensation reaction of 4-hydroxycoumarin with various sulfonamides (sulfanilamide, sulfaguanidine, p-aminomethyl-sufanilamide, p-aminoethylsufanilamide, sulfathiazole, sulfamethoxazole, sulfamethazine and 4-[(2-amino-4-pyrimidinyl) amino] benzenesulfonamide) in the presence of an excess of ethylorthoformate. These compounds were screened for their in-vitro antibacterial activity against four Gram-negative (E. coli, S. flexneri, P. aeruginosa and S. typhi) and two Gram-positive (B. subtilis and S. aureus) bacterial strains and for in-vitro antifungal activity against T. longifusus, C. albicans, A. flavus, M. canis, F. solani and C. glaberata. Results revealed that a significant antibacterial activity was observed by compounds (4) and (5), (6) and (8) against two Gram-negative, (P. aeruginosa and S. typhi) and two Gram-positive (B. subtilis and S. aureus) species, respectively. Of these (4) was found to be the most active. Similarly, for antifungal activity compounds (3) and (8) showed significant activity against M. canis and, (6) and (8) against F. solani. The brine shrimp bioassay was also carried out to study their in-vitro cytotoxic properties and only two compounds, (4) and (8) possessing LD50 = 2.9072 x 10(-4) and 3.2844 x 10(-4) M, respectively, displayed potent cytotoxic activity against Artemia salina
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Affiliation(s)
- Zahid H Chohan
- Department of Chemistry, Bahauddin Zakariya University, Multan 60800, Pakistan.
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Chohan ZH, Rauf A, Naseer MM, Somra MA, Supuran CT. Antibacterial, antifungal and cytotoxic properties of some sulfonamide-derived chromones. J Enzyme Inhib Med Chem 2008; 21:173-7. [PMID: 16789431 DOI: 10.1080/14756360500533059] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
A series of antibacterial and antifungal sulfonamide (sulfanilamide, sulfaguanidine, sulfamethaxozole, 4-aminoethylbenzene-sulfonamide and 4-amino-6-trifluoromethyl-benzene-1,3-disulfonamide) derived chromones, previously reported as inhibitors of carbonic anhydrase, have been screened for in-vitro antibacterial activity against four Gram-negative (Escherichia coli, Pseudomonas aeruginosa, Salmonella typhi and Shigella flexener) and two Gram-positive (Bacillus subtilis and Staphylococcus aureus) bacterial strains, and for in-vitro antifungal activity against Trichophyton longifusus, Candida albicans, Aspergillus flavus, Microsporum canis, Fusarium solani, Candida glaberata. All compounds (1)-(5) showed significant antibacterial activity against all four Gram-negative species and both Gram-positive species. However, three of them, (1), (4) and (5), were found to be comparatively much more active compared to (2) and (3). Of these, (5) was found to be the most active one. For antifungal activity, generally compounds (1) and (2) showed significant activity against more than three strains whereas (3)-(5) also showed significant activity against varied fungal strains. In the brine shrimp bioassay for in-vitro cytotoxic properties, only two compounds, (4) and (5) displayed potent cytotoxic activity, LD50 = 2.732 x 10(-4)M) and LD50 = 2.290 x 10(-4)M) respectively, against Artemia salina.
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Affiliation(s)
- Zahid H Chohan
- Department of Chemistry, Bahauddin Zakariya University, Multan-60800, Pakistan.
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Chohan ZH, Scozzafava A, Supuran CT. Carbonic Anhydrase Inhibitors: Schiff's Bases of Aromatic and Heterocyclic Sulfonamides and their Metal Complexes. J Enzyme Inhib Med Chem 2008; 19:263-7. [PMID: 15499998 DOI: 10.1080/14756360410001689595] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Schiff's bases were obtained from aromatic/heterocyclic sulfonamides and amino-sulfonamide derivatives, such as sulfanilamide, homosulfanilamide, 4-aminoethyl-benzenesulfonamide and 5-amino-1,3,4-thiadiazole-2-sulfonamide. Metal complexes of some of these Schiff's bases, incorporating Zn(II), Co(lI), Ni(II) and Cu(II) ions, were also prepared and tested as inhibitors of the zinc enzyme carbonic anhydrase (CA), and more specifically the red blood cell isozymes I and II. The Schiff's bases behaved as medium potency CA I and CA II inhibitors, whereas their metal complexes showed a highly enhanced potency, with several low nanomolar CA II inhibitors detected.
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Synthesis, characterization, structural optimization using density functional theory and superoxide ion scavenging activity of some Schiff bases. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.02.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Puccetti L, Fasolis G, Vullo D, Chohan ZH, Scozzafava A, Supuran CT. Carbonic anhydrase inhibitors. Inhibition of cytosolic/tumor-associated carbonic anhydrase isozymes I, II, IX, and XII with Schiff’s bases incorporating chromone and aromatic sulfonamide moieties, and their zinc complexes. Bioorg Med Chem Lett 2005; 15:3096-101. [PMID: 15908204 DOI: 10.1016/j.bmcl.2005.04.055] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2005] [Revised: 03/31/2005] [Accepted: 04/12/2005] [Indexed: 11/23/2022]
Abstract
A series of Schiff's bases was prepared by reaction of 3-formyl-chromone or 6-methyl-3-formyl-chromone with aromatic sulfonamides, such as sulfanilamide, homosulfanilamide, 4-aminoethyl-benzenesulfonamide, a pyrimidinyl-substituted sulfanilamide derivative, sulfaguanidine and 4-amino-6-trifluoromethyl-benzene-1,3-disulfonamide. The zinc complexes of these sulfonamides have also been obtained. The new derivatives and their Zn(II) complexes were investigated for the inhibition of four physiologically relevant isozymes of carbonic anhydrase (CA, EC 4.2.1.1): the cytosolic isoforms I and II, as well as the tumor-associated, transmembrane isozymes CA IX and XII. Except for the sulfaguanidine-derived compounds which were devoid of activity against all isozymes, the other sulfonamides and their metal complexes showed interesting inhibitory activity. Against isozyme CA I, the inhibition constants were in the range of 13-100 nM, against isozyme CA II in the range of 1.9-102 nM, against isozyme CA IX in the range of 6.3-48nM, and against CA XII in the range of 5.9-50nM. Generally, the formyl-chromone derived compounds were better CA inhibitors as compared to the corresponding 6-methyl-chromone derivatives, and for the simple, benzenesulfonamide derivatives activity increased with an increase of the spacer from sulfanilamide to homosulfanilamide and 4-aminoethylbenzenesulfonamide derivatives, respectively. Some of these compounds may show applications for the development of therapies targeting hypoxic tumors in which CA IX and XII are often highly overexpressed.
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Affiliation(s)
- Luca Puccetti
- Ospedale San Lazzaro, Divisione di Urologia, Via Pierino Belli 26, 12051 Alba, Cuneo, Italy
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Pastorekova S, Parkkila S, Pastorek J, Supuran CT. Carbonic anhydrases: current state of the art, therapeutic applications and future prospects. J Enzyme Inhib Med Chem 2004; 19:199-229. [PMID: 15499993 DOI: 10.1080/14756360410001689540] [Citation(s) in RCA: 524] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Carbonic anhydrases (CAs, EC 4.2.1.1) are wide-spread enzymes, present in mammals in at least 14 different isoforms. Some of these isozymes are cytosolic (CA I, CA II, CA III, CA VII, CA XIII), others are membrane-bound (CA IV, CA IX, CA XII and CA XIV), CA V is mitochondrial and CA VI is secreted in the saliva and milk. Three cytosolic acatalytic forms are also known (CARP VIII, CARP X and CARP XI). The catalytically active isoforms, which play important physiological and patho-physiological functions, are strongly inhibited by aromatic and heterocyclic sulfonamides. The catalytic and inhibition mechanisms of these enzymes are understood in great detail, and this greatly helped the design of potent inhibitors, some of which possess important clinical applications. The use of such CA inhibitors (CAIs) as antiglaucoma drugs are discussed in detail, together with the recent developments that led to isozyme-specific and organ-selective inhibitors. A recent discovery is connected with the involvement of CAs and their sulfonamide inhibitors in cancer: many potent CAIs were shown to inhibit the growth of several tumor cell lines in vitro and in vivo, thus constituting interesting leads for developing novel antitumor therapies. Future prospects for drug design of inhibitors of these ubiquitous enzymes are dealt with. Although activation of CAs has been a controversial issue for some time, recent kinetic, spectroscopic and X-ray crystallographic experiments offered an explanation of this phenomenon, based on the catalytic mechanism. It has been demonstrated recently, that molecules that act as carbonic anhydrase activators (CAAs) bind at the entrance of the enzyme active site participating in facilitated proton transfer processes between the active site and the reaction medium. In addition to CA II-activator adducts, X-ray crystallographic studies have been also reported for ternary complexes of this isozyme with activators and anion (azide) inhibitors. Structure-activity correlations for diverse classes of activators is discussed for the isozymes for which the phenomenon has been studied, i.e., CA I, II, III and IV. The possible physiological relevance of CA activation/inhibition is also addressed, together with recent pharmacological/ biomedical applications of such compounds in different fields of life sciences.
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Affiliation(s)
- Silvia Pastorekova
- Centre of Molecular Medicine, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 842 45 Bratislava, Slovak Republic
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Abstract
At least 14 different carbonic anhydrase (CA, EC 4.2.1.1) isoforms were isolated in higher vertebrates, where these zinc enzymes play crucial physiological roles. Some of these isozymes are cytosolic (CA I, CA II, CA III, CA VII), others are membrane-bound (CA IV, CA IX, CA XII, and CA XIV), CA V is mitochondrial and CA VI is secreted in saliva. Three acatalytic forms are also known, which are denominated CA related proteins (CARP), CARP VIII, CARP X, and CARP XI. Several important physiological and physio-pathological functions are played by many CA isozymes, which are strongly inhibited by aromatic and heterocyclic sulfonamides as well as inorganic, metal complexing anions. The catalytic and inhibition mechanisms of these enzymes are understood in detail, and this helped the design of potent inhibitors, some of which possess important clinical applications. The use of such enzyme inhibitors as antiglaucoma drugs will be discussed in detail, together with the recent developments that led to isozyme-specific and organ-selective inhibitors. A recent discovery is connected with the involvement of CAs and their sulfonamide inhibitors in cancer: several potent sulfonamide inhibitors inhibited the growth of a multitude of tumor cells in vitro and in vivo, thus constituting interesting leads for developing novel antitumor therapies. Furthermore, some other classes of compounds that interact with CAs have recently been discovered, some of which possess modified sulfonamide or hydroxamate moieties. Some sulfonamides have also applications as diagnostic tools, in PET and MRI or as antiepileptics or for the treatment of other neurological disorders. Future prospects for drug design applications for inhibitors of these ubiquitous enzymes are also discussed.
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Affiliation(s)
- Claudiu T Supuran
- Dipartimento di Chimica, University of Florence, Via della Lastruccia 3, Rm 188, Polo Scientifico, 50019-Sesto Fiorentino (Firenze), Italy.
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Chohan ZH, Supuran CT. ANTIBACTERIAL Co(II) AND Ni(II) COMPLEXES OF BENZOTHIAZOLE-DERIVED SCHIFF BASES. ACTA ACUST UNITED AC 2002. [DOI: 10.1081/sim-120014861] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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