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Ivanova J, Abdoli M, Nocentini A, Žalubovskis R, Supuran CT. Derivatives of 4-methyl-1,2,3-benzoxathiazine 2,2-dioxide as selective inhibitors of human carbonic anhydrases IX and XII over the cytosolic isoforms I and II. J Enzyme Inhib Med Chem 2023; 38:2170370. [PMID: 36718988 PMCID: PMC9891166 DOI: 10.1080/14756366.2023.2170370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 02/01/2023] Open
Abstract
A series of 4-methyl-1,2,3-benzoxathiazine-2,2-dioxides with various substituents in 5, 6 or 7 positions was obtained from corresponding 2'-hydroxyacetophenones in their reaction with sulphamoyl chloride. 6- and 7-aryl substituted 4-methyl-1,2,3-benzoxathiazine-2,2-dioxides were obtained from aryl substituted 2'-hydroxyacetophenonesprepared from 4- or 5-bromo-2'-hydroxyacetophenones via two-step protocol. 4-Methyl-1,2,3-benzoxathiazine-2,2-dioxides were investigated as inhibitors of four human (h) carbonic anhydrase (hCA, EC 4.2.1.1) isoforms, off-target cytosolic hCA I and II, and target transmembrane, tumour-associated hCA IX and XII. Twenty derivatives of 4-methyl-1,2,3-benzoxathiazine 2,2-dioxide were obtained. With one exception (compound2a), they mostly act as nanomolar inhibitors of target hCA IX and XII. Basically, all screened compounds express none or low inhibitory properties towards off-target hCA I. hCA II is inhibited in micromolar range. Overwhelming majority of 4-methyl-1,2,3-benzoxathiazine 2,2-dioxides express excellent selectivity towards CA IX/XII over hCA I as well as very good selectivity towards CA IX/XII over hCA II.
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Affiliation(s)
| | - Morteza Abdoli
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia
| | - Alessio Nocentini
- Neurofarba Department, Università degli Studi di Firenze, Florence, Italy
| | - Raivis Žalubovskis
- Latvian Institute of Organic Synthesis, Riga, Latvia
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia
| | - Claudiu T. Supuran
- Neurofarba Department, Università degli Studi di Firenze, Florence, Italy
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Begines P, Bonardi A, Nocentini A, Gratteri P, Giovannuzzi S, Ronca R, Tavani C, Luisa Massardi M, López Ó, Supuran CT. Design and synthesis of sulfonamides incorporating a biotin moiety: Carbonic anhydrase inhibitory effects, antiproliferative activity and molecular modeling studies. Bioorg Med Chem 2023; 94:117467. [PMID: 37722299 DOI: 10.1016/j.bmc.2023.117467] [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: 07/23/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/20/2023]
Abstract
Sulfonamides constitute an important class of classical carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. Herein we have accomplished the conjugation of biotin with an ample number of sulfonamide motifs with the aim of testing them in vitro as inhibitors of the human carbonic anhydrase (hCA) isoforms I and II (cytosolic isozymes), as well as hCA IX and XII (transmembrane, tumor-associated enzymes). Most of these newly synthesized compounds exhibited interesting inhibition profiles, with activities in the nanomolar range. The presence of a 4-F-C6H4 moiety, also found in SLC-0111, afforded an excellent selectivity towards the tumor-associated hypoxia-induced hCA isoform XII with an inhibition constant (KI) of 4.5 nM. The 2-naphthyl derivative was the most potent inhibitor against hCA IX (KI = 6.2 nM), 4-fold stronger than AAZ (KI = 25 nM) with very good selectivity. Some compounds were chosen for antiproliferative activity testing against a panel of 3 human tumor cell lines, one compound showing anti-proliferative activity on glioblastoma, triple-negative breast cancer, and pancreatic carcinoma cell lines.
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Affiliation(s)
- Paloma Begines
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence 50019, Italy; Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, Seville E-41071, Spain
| | - Alessandro Bonardi
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence 50019, Italy; NEUROFARBA Department, Pharmaceutical and Nutraceutical Section, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino, Firenze, Italy
| | - Alessio Nocentini
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence 50019, Italy; NEUROFARBA Department, Pharmaceutical and Nutraceutical Section, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino, Firenze, Italy
| | - Paola Gratteri
- NEUROFARBA Department, Pharmaceutical and Nutraceutical Section, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino, Firenze, Italy
| | - Simone Giovannuzzi
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence 50019, Italy
| | - Roberto Ronca
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Camilla Tavani
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Maria Luisa Massardi
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Óscar López
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, Seville E-41071, Spain.
| | - Claudiu T Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence, Florence 50019, Italy.
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Abdoli M, Luca VD, Capasso C, Supuran CT, Žalubovskis R. Investigation of carbonic anhydrase inhibitory potency of ( Z/E)-alkyl N'-benzyl- N-(arylsulfonyl)-carbamimidothioates. Future Med Chem 2023; 15:615-627. [PMID: 37140057 DOI: 10.4155/fmc-2022-0287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
Aim: Among 15 human (h) carbonic anhydrase (CA; EC 4.2.1.1) isoforms, two (hCA IX and XII) play important roles in the growth and survival of tumor cells, making them therapeutic targets for cancer treatment. This study aimed to develop novel sulfonamide-based compounds as selective hCA IX and XII inhibitors. Materials & methods: A library of novel N-sulfonyl carbamimidothioates was obtained for CA inhibitory activity studies against four hCA isoforms. Results: None of the developed compounds displayed inhibitory potential against off-target isoforms hCA I and II. However, they effectively inhibited tumor-associated hCA IX and XII. Conclusion: The present study suggests potent lead compounds as selective hCA IX and XII inhibitors with anticancer activity.
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Affiliation(s)
- Morteza Abdoli
- Institute of Technology of Organic Chemistry, Faculty of Materials Science & Applied Chemistry, Riga Technical University, Riga, LV-1048, Latvia
| | - Viviana De Luca
- Department of Biology, Agriculture & Food Sciences, Institute of Biosciences & Bioresources, Napoli, 80131, Italy
| | - Clemente Capasso
- Department of Biology, Agriculture & Food Sciences, Institute of Biosciences & Bioresources, Napoli, 80131, Italy
| | - Claudiu T Supuran
- NEUROFARBA Department, Pharmaceutical & Nutraceutical Section, University of Florence, Florence, 50019, Italy
| | - Raivis Žalubovskis
- Institute of Technology of Organic Chemistry, Faculty of Materials Science & Applied Chemistry, Riga Technical University, Riga, LV-1048, Latvia
- Latvian Institute of Organic Synthesis, Riga, LV-1006, Latvia
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Small Structural Differences Govern the Carbonic Anhydrase II Inhibition Activity of Cytotoxic Triterpene Acetazolamide Conjugates. Molecules 2023; 28:molecules28031009. [PMID: 36770674 PMCID: PMC9919727 DOI: 10.3390/molecules28031009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Acetylated triterpenoids betulin, oleanolic acid, ursolic acid, and glycyrrhetinic acid were converted into their succinyl-spacered acetazolamide conjugates. These conjugates were screened for their inhibitory activity onto carbonic anhydrase II and their cytotoxicity employing several human tumor cell lines and non-malignant fibroblasts. As a result, the best inhibitors were derived from betulin and glycyrrhetinic acid while those derived from ursolic or oleanolic acid were significantly weaker inhibitors but also of diminished cytotoxicity. A betulin-derived conjugate held a Ki = 0.129 μM and an EC50 = 8.5 μM for human A375 melanoma cells.
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Ivanova J, Abdoli M, Nocentini A, Žalubovskis R, Supuran CT. 1,2,3-Benzoxathiazine-2,2-dioxides – effective inhibitors of human carbonic anhydrases. J Enzyme Inhib Med Chem 2023; 38:225-238. [DOI: 10.1080/14756366.2022.2142787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
| | - Morteza Abdoli
- Faculty of Materials Science and Applied Chemistry, Institute of Technology of Organic Chemistry, Riga Technical University, Riga, Latvia
| | - Alessio Nocentini
- Neurofarba Department, Università degli Studi di Firenze, Florence, Italy
| | - Raivis Žalubovskis
- Latvian Institute of Organic Synthesis, Riga, Latvia
- Faculty of Materials Science and Applied Chemistry, Institute of Technology of Organic Chemistry, Riga Technical University, Riga, Latvia
| | - Claudiu T. Supuran
- Neurofarba Department, Università degli Studi di Firenze, Florence, Italy
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Abdoli M, Giovannuzzi S, Supuran CT, Žalubovskis R. 4-(3-Alkyl/benzyl-guanidino)benzenesulfonamides as selective carbonic anhydrase VII inhibitors. J Enzyme Inhib Med Chem 2022; 37:1568-1576. [PMID: 35635139 PMCID: PMC9154774 DOI: 10.1080/14756366.2022.2080816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2022] Open
Affiliation(s)
- Morteza Abdoli
- Faculty of Materials Science and Applied Chemistry, Institute of Technology of Organic Chemistry, Riga Technical University, Riga, Latvia
| | - Simone Giovannuzzi
- Neurofarba Department, Universita Degli Studi di Firenze, Florence, Italy
| | - Claudiu T. Supuran
- Neurofarba Department, Universita Degli Studi di Firenze, Florence, Italy
| | - Raivis Žalubovskis
- Faculty of Materials Science and Applied Chemistry, Institute of Technology of Organic Chemistry, Riga Technical University, Riga, Latvia
- Latvian Institute of Organic Synthesis, Riga, Latvia
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Amine- and Amino Acid-Based Compounds as Carbonic Anhydrase Activators. Molecules 2021; 26:molecules26237331. [PMID: 34885917 PMCID: PMC8659172 DOI: 10.3390/molecules26237331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 12/01/2021] [Indexed: 02/01/2023] Open
Abstract
After being rather neglected as a research field in the past, carbonic anhydrase activators (CAAs) were undoubtedly demonstrated to be useful in diverse pharmaceutical and industrial applications. They also improved the knowledge of the requirements to selectively interact with a CA isoform over the others and confirmed the catalytic mechanism of this class of compounds. Amino acid and amine derivatives were the most explored in in vitro, in vivo and crystallographic studies as CAAs. Most of them were able to activate human or non-human CA isoforms in the nanomolar range, being proposed as therapeutic and industrial tools. Some isoforms are better activated by amino acids than amines derivatives and the stereochemistry may exert a role. Finally, non-human CAs have been very recently tested for activation studies, paving the way to innovative industrial and environmental applications.
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De Luca V, Petreni A, Carginale V, Scaloni A, Supuran CT, Capasso C. Effect of amino acids and amines on the activity of the recombinant ι-carbonic anhydrase from the Gram-negative bacterium Burkholderia territorii. J Enzyme Inhib Med Chem 2021; 36:1000-1006. [PMID: 33980103 PMCID: PMC8128165 DOI: 10.1080/14756366.2021.1919891] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/12/2021] [Accepted: 04/15/2021] [Indexed: 01/10/2023] Open
Abstract
We here report a study on the activation of the ι-class bacterial CA from Burkholderia territorii (BteCAι). This protein was recently characterised as a zinc-dependent enzyme that shows a significant catalytic activity (kcat 3.0 × 105 s-1) for the physiological reaction of CO2 hydration to bicarbonate and protons. Some amino acids and amines, among which some proteinogenic derivatives as well as histamine, dopamine and serotonin, showed efficient activating properties towards BteCAι, with activation constants in the range 3.9-13.3 µM. L-Phe, L-Asn, L-Glu, and some pyridyl-alkylamines, showed a weaker activating effect towards BteCAι, with KA values ranging between 18.4 µM and 45.6 µM. Nowadays, no information is available on active site architecture, metal ion coordination and catalytic mechanism of members of the ι-group of CAs, and this study represents another contribution towards a better understanding of this still uncharacterised class of enzymes.
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Affiliation(s)
- Viviana De Luca
- Department of Neurofarba, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Polo Scientifico, Florence, Italy
- Proteomics & Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment, CNR, Naples, Italy
| | - Andrea Petreni
- Department of Biology, Agriculture and Food Sciences, CNR, Institute of Biosciences and Bioresources, Napoli, Italy
| | - Vincenzo Carginale
- Department of Neurofarba, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Polo Scientifico, Florence, Italy
| | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment, CNR, Naples, Italy
| | - Claudiu T. Supuran
- Department of Biology, Agriculture and Food Sciences, CNR, Institute of Biosciences and Bioresources, Napoli, Italy
| | - Clemente Capasso
- Department of Neurofarba, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Polo Scientifico, Florence, Italy
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De Luca V, Angeli A, Mazzone V, Adelfio C, Carta F, Selleri S, Carginale V, Scaloni A, Supuran CT, Capasso C. Inhibitory Effects of Sulfonamide Derivatives on the β-Carbonic Anhydrase (MpaCA) from Malassezia pachydermatis, a Commensal, Pathogenic Fungus Present in Domestic Animals. Int J Mol Sci 2021; 22:ijms222212601. [PMID: 34830480 PMCID: PMC8620791 DOI: 10.3390/ijms222212601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/02/2022] Open
Abstract
Fungi are exposed to various environmental variables during their life cycle, including changes in CO2 concentration. CO2 has the potential to act as an activator of several cell signaling pathways. In fungi, the sensing of CO2 triggers cell differentiation and the biosynthesis of proteins involved in the metabolism and pathogenicity of these microorganisms. The molecular machineries involved in CO2 sensing constitute a promising target for the development of antifungals. Carbonic anhydrases (CAs, EC 4.2.1.1) are crucial enzymes in the CO2 sensing systems of fungi, because they catalyze the reversible hydration of CO2 to proton and HCO3-. Bicarbonate in turn boots a cascade of reactions triggering fungal pathogenicity and metabolism. Accordingly, CAs affect microorganism proliferation and may represent a potential therapeutic target against fungal infection. Here, the inhibition of the unique β-CA (MpaCA) encoded in the genome of Malassezia pachydermatis, a fungus with substantial relevance in veterinary and medical sciences, was investigated using a series of conventional CA inhibitors (CAIs), namely aromatic and heterocyclic sulfonamides. This study aimed to describe novel candidates that can kill this harmful fungus by inhibiting their CA, and thus lead to effective anti-dandruff and anti-seborrheic dermatitis agents. In this context, current antifungal compounds, such as the azoles and their derivatives, have been demonstrated to induce the selection of resistant fungal strains and lose therapeutic efficacy, which might be restored by the concomitant use of alternative compounds, such as the fungal CA inhibitors.
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Affiliation(s)
- Viviana De Luca
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (V.D.L.); (V.M.); (C.A.); (V.C.)
- Proteomics, Metabolomics & Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment, CNR, P.le Enrico Fermi 1, 80055 Portici (Napoli), Italy;
| | - Andrea Angeli
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy; (A.A.); (F.C.); (S.S.)
| | - Valeria Mazzone
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (V.D.L.); (V.M.); (C.A.); (V.C.)
| | - Claudia Adelfio
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (V.D.L.); (V.M.); (C.A.); (V.C.)
| | - Fabrizio Carta
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy; (A.A.); (F.C.); (S.S.)
| | - Silvia Selleri
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy; (A.A.); (F.C.); (S.S.)
| | - Vincenzo Carginale
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (V.D.L.); (V.M.); (C.A.); (V.C.)
| | - Andrea Scaloni
- Proteomics, Metabolomics & Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment, CNR, P.le Enrico Fermi 1, 80055 Portici (Napoli), Italy;
| | - Claudiu T. Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy; (A.A.); (F.C.); (S.S.)
- Correspondence: (C.T.S.); (C.C.); Tel.: +39-055-4573729 (C.T.S.); +39-081-613-2559 (C.C.)
| | - Clemente Capasso
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (V.D.L.); (V.M.); (C.A.); (V.C.)
- Correspondence: (C.T.S.); (C.C.); Tel.: +39-055-4573729 (C.T.S.); +39-081-613-2559 (C.C.)
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Supuran CT, Nocentini A, Yakubova E, Savchuk N, Kalinin S, Krasavin M. Biochemical profiling of anti-HIV prodrug Elsulfavirine (Elpida ®) and its active form VM1500A against a panel of twelve human carbonic anhydrase isoforms. J Enzyme Inhib Med Chem 2021; 36:1056-1060. [PMID: 34000969 PMCID: PMC8143618 DOI: 10.1080/14756366.2021.1927007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The non-nucleoside reverse transcriptase inhibitor VM1500A is approved for the treatment of HIV/AIDS in its N-acyl sulphonamide prodrug form elsulfavirine (Elpida®). Biochemical profiling against twelve human carbonic anhydrase (CA, EC 4.2.1.1) isoforms showed that while elsulfavirine was a weak inhibitor of all isoforms, VM1500A potently and selectively inhibited human (h) hCA VII isoform, a proven target for the therapy of neuropathic pain. The latter is a common neurologic complication of HIV infection and we hypothesise that by using Elpida® in patients may help alleviate this debilitating symptom.
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Affiliation(s)
- Claudiu T Supuran
- Neurofarba Department, Section of Pharmaceutical Sciences, University of Florence, Florence, Italy
| | - Alessio Nocentini
- Neurofarba Department, Section of Pharmaceutical Sciences, University of Florence, Florence, Italy
| | | | - Nikolay Savchuk
- Viriom Inc, San Diego, CA, USA.,ChemDiv Inc, San Diego, CA, USA
| | - Stanislav Kalinin
- Institute of Chemistry, St. Petersburg State University, St. Petersburg, Russia
| | - Mikhail Krasavin
- Institute of Chemistry, St. Petersburg State University, St. Petersburg, Russia
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Nocentini A, Angeli A, Carta F, Winum JY, Zalubovskis R, Carradori S, Capasso C, Donald WA, Supuran CT. Reconsidering anion inhibitors in the general context of drug design studies of modulators of activity of the classical enzyme carbonic anhydrase. J Enzyme Inhib Med Chem 2021; 36:561-580. [PMID: 33615947 PMCID: PMC7901698 DOI: 10.1080/14756366.2021.1882453] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Inorganic anions inhibit the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1) generally by coordinating to the active site metal ion. Cyanate was reported as a non-coordinating CA inhibitor but those erroneous results were subsequently corrected by another group. We review the anion CA inhibitors (CAIs) in the more general context of drug design studies and the discovery of a large number of inhibitor classes and inhibition mechanisms, including zinc binders (sulphonamides and isosteres, dithiocabamates and isosteres, thiols, selenols, benzoxaboroles, ninhydrins, etc.); inhibitors anchoring to the zinc-coordinated water molecule (phenols, polyamines, sulfocoumarins, thioxocoumarins, catechols); CAIs occluding the entrance to the active site (coumarins and derivatives, lacosamide), as well as compounds that bind outside the active site. All these new chemotypes integrated with a general procedure for obtaining isoform-selective compounds (the tail approach) has resulted, through the guidance of rigorous X-ray crystallography experiments, in the development of highly selective CAIs for all human CA isoforms with many pharmacological applications.
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Affiliation(s)
- Alessio Nocentini
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | - Andrea Angeli
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | - Fabrizio Carta
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | | | - Raivis Zalubovskis
- Latvian Institute of Organic Synthesis, Riga, Latvia.,Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia
| | - Simone Carradori
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Clemente Capasso
- Institute of Biosciences and Bioresources, National Research Council, Napoli, Italy
| | - William A Donald
- School of Chemistry, University of New South Wales, Sydney, Australia
| | - Claudiu T Supuran
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
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12
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Tsikas D, Gambaryan S. Nitrous anhydrase activity of carbonic anhydrase II: cysteine is required for nitric oxide (NO) dependent phosphorylation of VASP in human platelets. J Enzyme Inhib Med Chem 2021; 36:525-534. [PMID: 33508993 PMCID: PMC7875556 DOI: 10.1080/14756366.2021.1874946] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The carbonic anhydrase (CA) family does not only catalyse the reversible hydration of CO2 to bicarbonate, but it also possesses esterase and phosphatase activity. Recently, bovine CA II and human CA II have been reported to convert inorganic nitrite (O=N-O−) to nitric oxide (NO) and nitrous anhydride (N2O3). Given the ability of NO to mediate vasodilation and inhibit platelet aggregation, this CA II activity would represent a bioactivation of nitrite. There are contradictory reports in the literature and the physiological role of CA II nitrite bioactivation is still disputed. Here, we provide new experimental data in support of the nitrous anhydrase activity of CA II and the key role L-cysteine in the bioactivation of nitrite by CA II. Using washed human platelets and by measuring VASP phosphorylation we provide evidence that exogenous nitrite (10 µM) is bioactivated to NO in a manner strongly depending on L-cysteine (100 and 200 µM). The process is not inhibitable by acetazolamide, a potent CA inhibitor. The contradictory results of recently published studies in this area are thoroughly discussed.
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Affiliation(s)
- Dimitrios Tsikas
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, Hannover, Germany
| | - Stepan Gambaryan
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Petersburg, Russia
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13
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Comments to the Editor Due to the Response by the Supuran Group to Our Article. Biophys J 2020; 120:182-183. [PMID: 33308476 DOI: 10.1016/j.bpj.2020.11.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 12/18/2022] Open
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