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Kumar A, Rani M, Giovannuzzi S, Raghav N, Supuran CT, Sharma PK. Novel thiazolotriazole and triazolothiadiazine scaffolds as selective tumor associated carbonic anhydrase inhibitors endowed with cathepsin B inhibition. Arch Pharm (Weinheim) 2024:e2400366. [PMID: 38991221 DOI: 10.1002/ardp.202400366] [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] [Received: 05/11/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/13/2024]
Abstract
The present research focused on the tail-approach synthesis of novel extended thiazolotriazoles (8a-8j) and triazolothiadiazines (11a-11j) including aminotriazole intermediate 10. After successful synthesis, all the compounds were evaluated for their inhibition potential against cytosolic isoforms of human carbonic anhydrase (hCA I, II), tumor-linked transmembrane isoforms (hCA IX, XII), and cathepsin B. As per the inhibition data, the newly synthesized compounds showed poor inhibition against hCA I. Many of the compounds showed effective inhibition toward hCA IX and/or XII in low nanomolar concentration. Despite the strong to moderate inhibition of hCA II by these compounds, more than half of them demonstrated better inhibition against hCA IX and/or XII, comparatively. Further, insights of CA inhibition data of these extended analogs and their comparison with earlier reported thiazolotriazole and triazolothiadiazine derivatives might help in the rational design of novel potent and selective hCA IX and XII inhibitors. The novel compounds were also found to possess anti-cathepsin B potential at a low concentration of 10-7 M. Broadly, compounds of series 11a-11j presented more effective inhibition against cathepsin B than their counterparts in series 8a-8j. Moreover, these in vitro results with respect to cathepsin B inhibition were also supported by the in silico insights obtained via molecular modeling studies.
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Affiliation(s)
- Amit Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Manishita Rani
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Simone Giovannuzzi
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | - Neera Raghav
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Claudiu T Supuran
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | - Pawan K Sharma
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
- Department of Chemistry, Central University of Haryana, Mahendergarh, India
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Gheibzadeh MS, Capasso C, Supuran CT, Zolfaghari Emameh R. Antibacterial carbonic anhydrase inhibitors targeting Vibrio cholerae enzymes. Expert Opin Ther Targets 2024; 28:623-635. [PMID: 39028535 DOI: 10.1080/14728222.2024.2369622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 06/14/2024] [Indexed: 07/20/2024]
Abstract
INTRODUCTION Cholera is a bacterial diarrheal disease caused by pathogen bacteria Vibrio cholerae, which produces the cholera toxin (CT). In addition to improving water sanitation, oral cholera vaccines have been developed to control infection. Besides, rehydration and antibiotic therapy are complementary treatment strategies for cholera. ToxT regulatory protein activates transcription of CT gene, which is enhanced by bicarbonate (HCO3-). AREAS COVERED This review delves into the genomic blueprint of V. cholerae, which encodes for α-, β-, and γ- carbonic anhydrases (CAs). We explore how the CAs contribute to the pathogenicity of V. cholerae and discuss the potential of CA inhibitors in mitigating the disease's impact. EXPERT OPINION CA inhibitors can reduce the virulence of bacteria and control cholera. Here, we reviewed all reported CA inhibitors, noting that α-CA from V. cholerae (VchCAα) was the most effective inhibited enzyme compared to the β- and γ-CA families (VchCAβ and VchCAγ). Among the CA inhibitors, acyl selenobenzenesulfonamidenamides and simple/heteroaromatic sulfonamides were the best VchCA inhibitors in the nM range. It was noted that some antibacterial compounds show good inhibitory effects on all three bacterial CAs. CA inhibitors belonging to other classes may be synthesized and tested on VchCAs to harness cholera.
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Affiliation(s)
- Mohammad Sadegh Gheibzadeh
- Department of Energy and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | - Claudiu T Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Firenze, Italy
| | - Reza Zolfaghari Emameh
- Department of Energy and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Chaudhari SB, Kumar A, Mankar VH, Banerjee S, Kumar D, Mubarak NM, Dehghani MH. Diverse role, structural trends, and applications of fluorinated sulphonamide compounds in agrochemical and pharmaceutical fields. Heliyon 2024; 10:e32434. [PMID: 38975170 PMCID: PMC11226812 DOI: 10.1016/j.heliyon.2024.e32434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 06/02/2024] [Accepted: 06/04/2024] [Indexed: 07/09/2024] Open
Abstract
Our knowledge of fluorine's unique and complex properties has significantly increased over the past 20 years. Consequently, more sophisticated and innovative techniques have emerged to incorporate this feature into the design of potential drug candidates. In recent years, researchers have become interested in synthesizing fluoro-sulphonamide compounds to discover new chemical entities with distinct and unexpected physical, chemical, and biological characteristics. The fluorinated sulphonamide molecules have shown significant biomedical importance. Their potential is not limited to biomedical applications but also includes crop protection. The discovery of novel fluorine and Sulfur compounds has highlighted their importance in the chemical sector, particularly in the agrochemical and medicinal fields. Recently, several fluorinated sulphonamide derivatives have been developed and frequently used by agriculturalists to produce food for the growing global population. These molecules have also exhibited their potential in health by inhibiting various human diseases. In today's world, it is crucial to have a steady supply of innovative pharmaceutical and agrochemical molecules that are highly effective, less harmful to the environment, and affordable. This review summarizes the available information on the activity of Fluorine and Sulphonamide compounds, which have proven active in pharmaceuticals and agrochemicals with excellent environmental and human health approaches. Moreover, it focuses on the current literature on the chemical structures, the application of fluorinated sulphonamide compounds against various pathological conditions, and their effectiveness in crop protection.
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Affiliation(s)
- Shankar B. Chaudhari
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Jalandhar, Punjab, India
| | - Anupam Kumar
- Department of Biotechnology, School of Bioengineering and Bio Sciences, Lovely Professional University, Jalandhar, Punjab, India
| | - Viraj H. Mankar
- Department of Chemistry, Queensland University of Technology Brisbane, Australia
| | - Shaibal Banerjee
- Department of Applied Chemistry, Defence Institute of Advanced Technology, (DU), Girinagar, Pune 411025, India
| | - Deepak Kumar
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Jalandhar, Punjab, India
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei Darussalam
- Department of Biosciences, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Mohammad Hadi Dehghani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
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Capasso C, Supuran CT. Carbonic anhydrase and bacterial metabolism: a chance for antibacterial drug discovery. Expert Opin Ther Pat 2024; 34:465-474. [PMID: 38506448 DOI: 10.1080/13543776.2024.2332663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/08/2024] [Indexed: 03/21/2024]
Abstract
INTRODUCTION Carbonic anhydrases (CAs, EC 4.2.1.1) play a pivotal role in the regulation of carbon dioxide , bicarbonate, and hydrogen ions within bacterial cells, ensuring pH homeostasis and facilitating energy production. We conducted a systematic literature search (PubMed, Web of Science, and Google Scholar) to examine the intricate interplay between CAs and bacterial metabolism, revealing the potential of CA inhibitors (CAIs) as innovative therapeutic agents against pathogenic bacteria. AREA COVERED Inhibition of bacterial CAs was explored in various pathogens, emphasizing the CA roles in microbial virulence, survival, and adaptability. Escherichia coli, a valid and convenient model microorganism, was recently used to investigate the effects of acetazolamide (AAZ) on the bacterial life cycle. Furthermore, the effectiveness of CAIs against pathogenic bacteria has been further substantiated for Vancomycin-Resistant Enterococci (VRE) and antibiotic-resistant Neisseria gonorrhoeae strains. EXPERT OPINION CAIs target bacterial metabolic pathways, offering alternatives to conventional therapies. They hold promise against drug-resistant microorganisms such as VRE and N. gonorrhoeae strains. CAIs offer promising avenues for addressing antibiotic resistance and underscore their potential as novel antibacterial agents. Recognizing the central role of CAs in bacterial growth and pathogenicity will pave the way for innovative infection control and treatment strategies possibly also for other antibiotic resistant species.
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Affiliation(s)
- Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | - Claudiu T Supuran
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
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Supuran CT. An overview of novel antimicrobial carbonic anhydrase inhibitors. Expert Opin Ther Targets 2023; 27:897-910. [PMID: 37747071 DOI: 10.1080/14728222.2023.2263914] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/24/2023] [Indexed: 09/26/2023]
Abstract
INTRODUCTION Four different genetic families of the enzyme carbonic anhydrase (CA, EC 4.2.1.1) are present in bacteria, α-, β-, γ- and ι-CAs. They play relevant functions related to CO2, HCO3-/H+ ions homeostasis, being involved in metabolic biosynthetic pathways, pH regulation, and represent virulence and survival factors for bacteria in various niches. Bacterial CAs started to be considered druggable targets in the last decade, as their inhibition impairs survival, growth, and virulence of these pathogens. AREAS COVERED Significant advances were registered in the last years for designing effective inhibitors of sulfonamide type for Helicobacter pylori α-CA, Neisseria gonorrhoeae α-CA, vacomycin-resistant enterococci (VRE) α- and γ-CAs, for which the in vivo validation has also been achieved. MIC-s in the range of 0.25-4.0 µg/mL for wild type and drug resistant N. gonorrhoeae strains, and of 0.007-2.0 µg/mL for VRE were observed for some 1,3,4-thiadiazole-2-sulfonamides, and acetazolamide was effective in gut decolonization from VRE. EXPERT OPINION Targeting bacterial CAs from other pathogens, among which Vibrio cholerae, Mycobacterium tuberculosis, Brucella suis, Salmonella enterica serovar Typhimurium, Legionella pneumophila, Porphyromonas gingivalis, Clostridium perfringens, Streptococcus mutans, Burkholderia pseudomallei, Francisella tularensis, Escherichia coli, Mammaliicoccus (Staphylococcus) sciuri, Pseudomonas aeruginosa, may lead to novel antibacterials devoid of drug resistance problems.
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Affiliation(s)
- Claudiu T Supuran
- Department of NEUROFARBA, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Firenze, Italy
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Nocentini A, Capasso C, Supuran CT. Carbonic Anhydrase Inhibitors as Novel Antibacterials in the Era of Antibiotic Resistance: Where Are We Now? Antibiotics (Basel) 2023; 12:antibiotics12010142. [PMID: 36671343 PMCID: PMC9854953 DOI: 10.3390/antibiotics12010142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 12/29/2022] [Accepted: 01/09/2023] [Indexed: 01/12/2023] Open
Abstract
Resistance to antibiotic treatment developed by bacteria in humans and animals occurs when the microorganisms resist treatment with clinically approved antibiotics. Actions must be implemented to stop the further development of antibiotic resistance and the subsequent emergence of superbugs. Medication repurposing/repositioning is one strategy that can help find new antibiotics, as it speeds up drug development phases. Among them, the Zn2+ ion binders, such as sulfonamides and their bioisosteres, are considered the most promising compounds to obtain novel antibacterials, thus avoiding antibiotic resistance. Sulfonamides and their bioisosteres have drug-like properties well-known for decades and are suitable lead compounds for developing new pharmacological agent families for inhibiting carbonic anhydrases (CAs). CAs are a superfamily of metalloenzymes catalyzing the reversible reaction of CO2 hydration to HCO3- and H+, being present in most bacteria in multiple genetic families (α-, β-, γ- and ι-classes). These enzymes, acting as CO2 transducers, are promising drug targets because their activity influences microbe proliferation, biosynthetic pathways, and pathogen persistence in the host. In their natural or slightly modified scaffolds, sulfonamides/sulfamates/sulamides inhibit CAs in vitro and in vivo, in mouse models infected with antibiotic-resistant strains, confirming thus their role in contrasting bacterial antibiotic resistance.
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Affiliation(s)
- Alessio Nocentini
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, 50019 Firenze, Italy
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, 80131 Napoli, Italy
- Correspondence: (C.C.); (C.T.S.)
| | - Claudiu T. Supuran
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, 50019 Firenze, Italy
- Correspondence: (C.C.); (C.T.S.)
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De Luca V, Carginale V, Supuran CT, Capasso C. The gram-negative bacterium Escherichia coli as a model for testing the effect of carbonic anhydrase inhibition on bacterial growth. J Enzyme Inhib Med Chem 2022; 37:2092-2098. [PMID: 35899716 PMCID: PMC9341340 DOI: 10.1080/14756366.2022.2101644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Carbonic anhydrases, catalysing the reversible CO2 hydration reaction, contribute in all living organisms to the maintenance of stable metabolic functions depending on intracellular concentrations of carbon dioxide, bicarbonate, and protons. Recent studies have examined how CAs affect bacterial lifecycle, considering these enzymes druggable targets due to interference with their activities by using inhibitors or activators. Here, we propose Escherichia coli cells as a model for testing the effect of acetazolamide (AZA), a potent CA inhibitor, on bacterial survival by evaluating E. coli growth through its glucose consumption. AZA, at concentrations higher than 31.2 µg/mL, was able to impair E. coli growth and glucose uptake. AZA is a good inhibitor of the two recombinant E. coli CAs, the β-CA CynT2, and the γ-CA EcoCAγ, with KIs of 227 and 248 nM, respectively. This study provides a proof-of-concept, low-cost method for identifying effective CA inhibitors capable of impairing bacterial metabolism.
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Affiliation(s)
- Viviana De Luca
- Institute of Biosciences and Bioresources, National Research Council, Napoli, Italy
| | - Vincenzo Carginale
- Institute of Biosciences and Bioresources, National Research Council, Napoli, Italy
| | - Claudiu T Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Florence, Italy
| | - Clemente Capasso
- Institute of Biosciences and Bioresources, National Research Council, Napoli, Italy
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Nannini G, De Luca V, D'Ambrosio C, Scaloni A, Taddei A, Ringressi MN, Cianchi F, Staderini F, Capasso C, Amedei A, Supuran CT. A comparative study of carbonic anhydrase activity in lymphocytes from colorectal cancer tissues and adjacent healthy counterparts. J Enzyme Inhib Med Chem 2022; 37:1651-1655. [PMID: 35695123 PMCID: PMC9225793 DOI: 10.1080/14756366.2022.2085694] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Several carbonic anhydrase (CA, EC 4.2.1.1) isoforms play an essential role in processes connected to tumorigenesis, as they efficiently accelerate the hydration of carbon dioxide to bicarbonate and proton. In this context, examples are CA IX and CA XII, which were proved to be upregulated in many solid malignancies. On the other hand, cancer and the immune system are inextricably linked, and targeting the immune checkpoints recently was shown to efficiently improve the treatment of malignancies. In this study, we have investigated the expression of CA isoforms in tumour-infiltrating lymphocytes (TILs) that, according to the immunosurveillance theory, were suggested to have a crucial role in the development of colorectal cancer (CRC). T lymphocytes isolated from healthy surrounding mucosa showed a higher CA activity compared to those present in tumour and peripheral blood in the same patients. CA I and II were confirmed as enzyme isoforms involved in the process, as determined by proteomic analysis of corresponding TIL samples. These preliminary findings suggest a dysregulation of the local immune response in the CRC tissues and a loss of effective anticancer mechanisms mediated by CAs therein.
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Affiliation(s)
- Giulia Nannini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Viviana De Luca
- Institute of Biosciences and Bioresources, National Research Council, Napoli, Italy.,Proteomics, Metabolomics and Mass Spectrometry Laboratory, ISPAAM, National Research Council, Portici, Italy
| | - Chiara D'Ambrosio
- Proteomics, Metabolomics and Mass Spectrometry Laboratory, ISPAAM, National Research Council, Portici, Italy
| | - Andrea Scaloni
- Proteomics, Metabolomics and Mass Spectrometry Laboratory, ISPAAM, National Research Council, Portici, Italy
| | - Antonio Taddei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | | | - Fabio Cianchi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Fabio Staderini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Clemente Capasso
- Institute of Biosciences and Bioresources, National Research Council, Napoli, Italy
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.,SOD of Interdisciplinary Internal Medicine, Azienda Ospedaliera Universitaria Careggi (AOUC), Florence, Italy
| | - Claudiu T Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Florence, Italy
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De Luca V, Angeli A, Mazzone V, Adelfio C, Carginale V, Scaloni A, Carta F, Selleri S, Supuran CT, Capasso C. Heterologous expression and biochemical characterisation of the recombinant β-carbonic anhydrase (MpaCA) from the warm-blooded vertebrate pathogen malassezia pachydermatis. J Enzyme Inhib Med Chem 2021; 37:62-68. [PMID: 34894958 PMCID: PMC8667878 DOI: 10.1080/14756366.2021.1994559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Warm-blooded animals may have Malassezia pachydermatis on healthy skin, but changes in the skin microenvironment or host defences induce this opportunistic commensal to become pathogenic. Malassezia infections in humans and animals are commonly treated with azole antifungals. Fungistatic treatments, together with their long-term use, contribute to the selection and the establishment of drug-resistant fungi. To counteract this rising problem, researchers must find new antifungal drugs and enhance drug resistance management strategies. Cyclic adenosine monophosphate, adenylyl cyclase, and bicarbonate have been found to promote fungal virulence, adhesion, hydrolase synthesis, and host cell death. The CO2/HCO3-/pH-sensing in fungi is triggered by HCO3- produced by metalloenzymes carbonic anhydrases (CAs, EC 4.2.1.1). It has been demonstrated that the growth of M. globosa can be inhibited in vivo by primary sulphonamides, which are the typical CA inhibitors. Here, we report the cloning, purification, and characterisation of the β-CA (MpaCA) from the pathogenic fungus M. pachydermatis, which is homologous to the enzyme encoded in the genome of M. globosa and M. restricta, that are responsible for dandruff and seborrhoeic dermatitis. Fungal CAs could be thus considered a new pharmacological target for combating fungal infections and drug resistance developed by most fungi to the already used drugs.
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Affiliation(s)
- Viviana De Luca
- Institute of Biosciences and Bioresources, CNR, Napoli, Italy.,Proteomics & Mass Spectrometry Laboratory, ISPAAM, CNR, Naples, Italy
| | - Andrea Angeli
- Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Sesto Fiorentino, Italy
| | - Valeria Mazzone
- Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | - Claudia Adelfio
- Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | | | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, CNR, Naples, Italy
| | - Fabrizio Carta
- Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Sesto Fiorentino, Italy
| | - Silvia Selleri
- Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Sesto Fiorentino, Italy
| | - Claudiu T Supuran
- Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Sesto Fiorentino, Italy
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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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12
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Amedei A, Capasso C, Nannini G, Supuran CT. Microbiota, Bacterial Carbonic Anhydrases, and Modulators of Their Activity: Links to Human Diseases? Mediators Inflamm 2021; 2021:6926082. [PMID: 34803517 PMCID: PMC8601860 DOI: 10.1155/2021/6926082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022] Open
Abstract
The involvement of the human microbiome is crucial for different host functions such as protection, metabolism, reproduction, and especially immunity. However, both endogenous and exogenous factors can affect the balance of the microbiota, creating a state of dysbiosis, which can start various gastrointestinal or systemic diseases. The challenge of future medicine is to remodel the intestinal microbiota to bring it back to healthy equilibrium (eubiosis) and, thus, counteract its negative role in the diseases' onset. The shaping of the microbiota is currently practiced in different ways ranging from diet (or use of prebiotics, probiotics, and synbiotics) to phage therapy and antibiotics, including microbiota fecal transplantation. Furthermore, because microbiota modulation is a capillary process, and because many microbiota bacteria (both beneficial and pathogenic) have carbonic anhydrases (specifically the four classes α, β, γ, and ι), we believe that the use of CA inhibitors and activators can open up new therapeutic strategies for many diseases associated with microbial dysbiosis, such as the various gastrointestinal disorders and the same colorectal cancer.
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Affiliation(s)
- Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
- SOD of Interdisciplinary Internal Medicine, Azienda Ospedaliera Universitaria Careggi (AOUC), 50134 Florence, Italy
| | - Clemente Capasso
- CNR, Institute of Biosciences and Bioresources, 80131 Napoli, Italy
| | - Giulia Nannini
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
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13
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Nocentini A, Supuran CT, Capasso C. An overview on the recently discovered iota-carbonic anhydrases. J Enzyme Inhib Med Chem 2021; 36:1988-1995. [PMID: 34482770 PMCID: PMC8425729 DOI: 10.1080/14756366.2021.1972995] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Carbonic anhydrases (CAs, EC 4.2.1.1) have been studied for decades and have been classified as a superfamily of enzymes which includes, up to date, eight gene families or classes indicated with the Greek letters α, β, γ, δ, ζ, η, θ, ι. This versatile enzyme superfamily is involved in multiple physiological processes, catalysing a fundamental reaction for all living organisms, the reversible hydration of carbon dioxide to bicarbonate and a proton. Recently, the ι-CA (LCIP63) from the diatom Thalassiosira pseudonana and a bacterial ι-CA (BteCAι) identified in the genome of Burkholderia territorii were characterised. The recombinant BteCAι was observed to act as an excellent catalyst for the physiologic reaction. Very recently, the discovery of a novel ι-CAs (COG4337) in the eukaryotic microalga Bigelowiella natans and the cyanobacterium Anabaena sp. PCC7120 has brought to light an unexpected feature for this ancient superfamily: this ι-CAs was catalytically active without a metal ion cofactor, unlike the previous reported ι-CAs as well as all known CAs investigated so far. This review reports recent investigations on ι-CAs obtained in these last three years, highlighting their peculiar features, and hypothesising that possibly this new CA family shows catalytic activity without the need of metal ions.
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Affiliation(s)
- Alessio Nocentini
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Firenze, Italy
| | - Claudiu T Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Firenze, Italy
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
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14
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Urbanski LJ, Bua S, Angeli A, Kuuslahti M, Hytönen VP, Supuran CT, Parkkila S. Sulphonamide inhibition profile of Staphylococcus aureus β-carbonic anhydrase. J Enzyme Inhib Med Chem 2021; 35:1834-1839. [PMID: 32972256 PMCID: PMC7534311 DOI: 10.1080/14756366.2020.1826942] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This paper presents the production and kinetic and inhibitory characterisation of β-carbonic anhydrase from the opportunistic bacterium Staphylococcus aureus (SauBCA). From the eight different carbonic anhydrase (CA) families known to date, humans have only the α-form, whereas many clinically relevant pathogens have β- and/or γ-form(s). Based on this discovery, β- and γ-CAs have been introduced as promising new anti-infective targets. The results of this study revealed that recombinant SauBCA possesses significant CO2 hydration activity with a kcat of 1.46 × 105 s-1 and a kcat/KM of 2.56 × 107 s- 1M-1. Its enzymatic function was inhibited by various sulphonamides in the nanomolar - micromolar range, and the Ki of acetazolamide was 628 nM. The best inhibitor was the clinically used sulfamide agent famotidine (Ki of 71 nM). The least efficient inhibitors were zonisamide and dorzolamide. Our work encourages further investigations of SauBCA in an attempt to discover novel drugs against staphylococcal infections.
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Affiliation(s)
- Linda J Urbanski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Silvia Bua
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Sesto Fiorentino (Firenze), Italy
| | - Andrea Angeli
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Sesto Fiorentino (Firenze), Italy
| | - Marianne Kuuslahti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Vesa P Hytönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd, Tampere University Hospital, Tampere, Finland
| | - Claudiu T Supuran
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Sesto Fiorentino (Firenze), Italy
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd, Tampere University Hospital, Tampere, Finland
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15
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Supuran CT, Capasso C. A Highlight on the Inhibition of Fungal Carbonic Anhydrases as Drug Targets for the Antifungal Armamentarium. Int J Mol Sci 2021; 22:4324. [PMID: 33919261 PMCID: PMC8122340 DOI: 10.3390/ijms22094324] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 12/24/2022] Open
Abstract
Carbon dioxide (CO2), a vital molecule of the carbon cycle, is a critical component in living organisms' metabolism, performing functions that lead to the building of compounds fundamental for the life cycle. In all living organisms, the CO2/bicarbonate (HCO3-) balancing is governed by a superfamily of enzymes, known as carbonic anhydrases (CAs, EC 4.2.1.1). CAs catalyze the pivotal physiological reaction, consisting of the reversible hydration of the CO2 to HCO3- and protons. Opportunistic and pathogenic fungi can sense the environmental CO2 levels, which influence their virulence or environmental subsistence traits. The fungal CO2-sensing is directly stimulated by HCO3- produced in a CA-dependent manner, which directly activates adenylyl cyclase (AC) involved in the fungal spore formation. The interference with CA activity may impair fungal growth and virulence, making this approach interesting for designing antifungal drugs with a novel mechanism of action: the inhibition of CAs linked to the CO2/HCO3-/pH chemosensing and signaling. This review reports that sulfonamides and their bioisosteres as well as inorganic anions can inhibit in vitro the β- and α-CAs from the fungi, suggesting how CAs may be considered as a novel "pathogen protein" target of many opportunistic, pathogenic fungi.
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Affiliation(s)
- Claudiu T. Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Clemente Capasso
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
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16
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Tugrak M, Gul HI, Akincioglu H, Gulcin I. New Chalcone Derivatives with Pyrazole and Sulfonamide Pharmacophores as Carbonic Anhydrase Inhibitors. LETT DRUG DES DISCOV 2021. [DOI: 10.2174/1570180817999201001160414] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background:
Compound containing sulfonamide, pyrazole and chalcone groups are
important in medicinal chemistry. They have a wide range of biological activities, including carbonic
anhydrase (CA) inhibitory activities.
Introduction:
Carbonic anhydrase I and II inhibitors are used for the treatment of diseases, such as
retinal and cerebral edema (CA I), epilepsy, and glaucoma (CA II). However, the currently available
drugs have some limitations or side effects. Thus, there is a need for new drug candidates to
overcome these issues. In this study, a series of compounds, (E)-4-(4-(3-aryl)-3-oxoprop-1-en-1-yl)-
3-phenyl-1H-pyrazol-1-yl) benzenesulfonamides MS4-MS10, were designed to discover new CA
inhibitors using a hybrid approach.
Methods:
Compounds MS4-MS10 were synthesized as shown in Scheme 1, and their chemical
structures were confirmed by 1H NMR, 13C NMR, and HRMS spectra. The CAs (E.C.4.2.1.1) inhibitory
effects of MS4-MS10 were tested on the hCA I and II isoenzymes using previously reported
procedures.
Results:
The CA inhibitors MS4–MS10 gave IC50 values (nM) of 27.8–87.3 towards hCA I and
24.4–54.8 towards hCA II while the IC50 values for reference drug acetazolamide were 384.2 (hCA I)
and 36.9 (hCA II). MS7 and MS9 exhibited 13.8 (hCA I) and 1.5 (hCA II) times more potent CA
inhibition than the reference compound acetazolamide, respectively.
Conclusion:
MS7 (Ar: 2,4,5-trimethoxy phenyl) and MS9 (Ar: 3,4-dimethoxy phenyl) were the
most promising compounds of our series with the lowest IC50 values towards hCA I and hCA II,
respectively, and can be considered for further studies.
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Affiliation(s)
- Mehtap Tugrak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Halise Inci Gul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Hulya Akincioglu
- Department of Chemistry, Faculty of Sciences and Arts, Agri Ibrahim Cecen University, Agri, Turkey
| | - Ilhami Gulcin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
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17
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Campestre C, De Luca V, Carradori S, Grande R, Carginale V, Scaloni A, Supuran CT, Capasso C. Carbonic Anhydrases: New Perspectives on Protein Functional Role and Inhibition in Helicobacter pylori. Front Microbiol 2021; 12:629163. [PMID: 33815311 PMCID: PMC8017301 DOI: 10.3389/fmicb.2021.629163] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 02/22/2021] [Indexed: 12/12/2022] Open
Abstract
Our understanding of the function of bacterial carbonic anhydrases (CAs, EC 4.2.1.1) has increased significantly in the last years. CAs are metalloenzymes able to modulate CO2, HCO3 - and H+ concentration through their crucial role in catalysis of reversible CO2 hydration (CO2 + H2O ⇄ HCO3 - + H+). In all living organisms, CA activity is linked to physiological processes, such as those related to the transport and supply of CO2 or HCO3 -, pH homeostasis, secretion of electrolytes, biosynthetic processes and photosynthesis. These important processes cannot be ensured by the very low rate of the non-catalyzed reaction of CO2 hydration. It has been recently shown that CAs are important biomolecules for many bacteria involved in human infections, such as Vibrio cholerae, Brucella suis, Salmonella enterica, Pseudomonas aeruginosa, and Helicobacter pylori. In these species, CA activity promotes microorganism growth and adaptation in the host, or modulates bacterial toxin production and virulence. In this review, recent literature in this research field and some of the above-mentioned issues are discussed, namely: (i) the implication of CAs from bacterial pathogens in determining the microorganism growth and virulence; (ii) the druggability of these enzymes using classical CA inhibitors (CAIs) of the sulfonamide-type as examples; (iii) the role played by Helicobacter pylori CAs in the acid tolerance/adaptation of the microbe within the human abdomen; (iv) the role of CAs played in the outer membrane vesicles spawned by H. pylori in its planktonic and biofilm phenotypes; (v) the possibility of using H. pylori CAIs in combination with probiotic strains as a novel anti-ulcer treatment approach. The latter approach may represent an innovative and successful strategy to fight gastric infections in the era of increasing resistance of pathogenic bacteria to classical antibiotics.
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Affiliation(s)
- Cristina Campestre
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Viviana De Luca
- Department of Biology, Agriculture and Food Sciences, National Research Council (CNR), Institute of Biosciences and Bioresources, Naples, Italy.,Proteomics and Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment, National Research Council (ISPAAM-CNR), Naples, Italy
| | - Simone Carradori
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Rossella Grande
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Vincenzo Carginale
- Department of Biology, Agriculture and Food Sciences, National Research Council (CNR), Institute of Biosciences and Bioresources, Naples, Italy
| | - Andrea Scaloni
- Proteomics and Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment, National Research Council (ISPAAM-CNR), Naples, Italy
| | - Claudiu T Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Polo Scientifico, Department of NEUROFARBA, University of Florence, Sesto Fiorentino, Italy
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, National Research Council (CNR), Institute of Biosciences and Bioresources, Naples, Italy
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18
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Urbański LJ, Di Fiore A, Azizi L, Hytönen VP, Kuuslahti M, Buonanno M, Monti SM, Angeli A, Zolfaghari Emameh R, Supuran CT, De Simone G, Parkkila S. Biochemical and structural characterisation of a protozoan beta-carbonic anhydrase from Trichomonas vaginalis. J Enzyme Inhib Med Chem 2021; 35:1292-1299. [PMID: 32515610 PMCID: PMC7717681 DOI: 10.1080/14756366.2020.1774572] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We report the biochemical and structural characterisation of a beta-carbonic anhydrase (β-CA) from Trichomonas vaginalis, a unicellular parasite responsible for one of the world’s leading sexually transmitted infections, trichomoniasis. CAs are ubiquitous metalloenzymes belonging to eight evolutionarily divergent groups (α, β, γ, δ, ζ, η, θ, and ι); humans express only α-CAs, whereas many clinically significant pathogens express only β- and/or γ-CAs. For this reason, the latter two groups of CAs are promising biomedical targets for novel antiinfective agents. The β-CA from T. vaginalis (TvaCA1) was recombinantly produced and biochemically characterised. The crystal structure was determined, revealing the canonical dimeric fold of β-CAs and the main features of the enzyme active site. The comparison with the active site of human CA enzymes revealed significant differences that can be exploited for the design of inhibitors selective for the protozoan enzyme with respect to the human ones.
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Affiliation(s)
- Linda J Urbański
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Anna Di Fiore
- Institute of Biostructures and Bioimaging of the National Research Council, Naples, Italy
| | - Latifeh Azizi
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Vesa P Hytönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd, Tampere, Finland
| | - Marianne Kuuslahti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Martina Buonanno
- Institute of Biostructures and Bioimaging of the National Research Council, Naples, Italy
| | - Simona M Monti
- Institute of Biostructures and Bioimaging of the National Research Council, Naples, Italy
| | - Andrea Angeli
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Reza Zolfaghari Emameh
- Department of Energy and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology, (NIGEB), Tehran, Iran
| | - Claudiu T Supuran
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Giuseppina De Simone
- Institute of Biostructures and Bioimaging of the National Research Council, Naples, Italy
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd, Tampere, Finland
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19
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De Luca V, Petreni A, Nocentini A, Scaloni A, Supuran CT, Capasso C. Effect of Sulfonamides and Their Structurally Related Derivatives on the Activity of ι-Carbonic Anhydrase from Burkholderia territorii. Int J Mol Sci 2021; 22:ijms22020571. [PMID: 33430028 PMCID: PMC7827628 DOI: 10.3390/ijms22020571] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 11/17/2022] Open
Abstract
Carbonic anhydrases (CAs) are essential metalloenzymes in nature, catalyzing the carbon dioxide reversible hydration into bicarbonate and proton. In humans, breathing and many other critical physiological processes depend on this enzymatic activity. The CA superfamily function and inhibition in pathogenic bacteria has recently been the object of significant advances, being demonstrated to affect microbial survival/virulence. Targeting bacterial CAs may thus be a valid alternative to expand the pharmacological arsenal against the emergence of widespread antibiotic resistance. Here, we report an extensive study on the inhibition profile of the recently discovered ι-CA class present in some bacteria, including Burkholderia territorii, namely BteCAι, using substituted benzene-sulfonamides and clinically licensed sulfonamide-, sulfamate- and sulfamide-type drugs. The BteCAι inhibition profile showed: (i) several benzene-sulfonamides with an inhibition constant lower than 100 nM; (ii) a different behavior with respect to other α, β and γ-CAs; (iii) clinically used drugs having a micromolar affinity. This prototype study contributes to the initial recognition of compounds which efficiently and selectively inhibit a bacterial member of the ι-CA class, for which such a selective inhibition with respect to other protein isoforms present in the host is highly desired and may contribute to the development of novel antimicrobials.
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Affiliation(s)
- Viviana De Luca
- Institute of Biosciences and Bioresources, CNR, via Pietro Castellino 111, 80131 Napoli, Italy;
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, CNR, via Argine 1085, 80147 Napoli, Italy;
| | - Andrea Petreni
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, via U. Schiff 6, 50019 Florence, Italy; (A.P.); (A.N.)
| | - Alessio Nocentini
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, via U. Schiff 6, 50019 Florence, Italy; (A.P.); (A.N.)
| | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, CNR, via Argine 1085, 80147 Napoli, Italy;
| | - Claudiu T. Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, via U. Schiff 6, 50019 Florence, Italy; (A.P.); (A.N.)
- 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;
- Correspondence: (C.T.S.); (C.C.); Tel.: +39-055-4573729 (C.T.S.); +39-081-613-2559 (C.C.)
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20
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Ozensoy Guler O, Supuran CT, Capasso C. Carbonic anhydrase IX as a novel candidate in liquid biopsy. J Enzyme Inhib Med Chem 2020; 35:255-260. [PMID: 31790601 PMCID: PMC6896409 DOI: 10.1080/14756366.2019.1697251] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/13/2019] [Accepted: 11/16/2019] [Indexed: 12/15/2022] Open
Abstract
Among the diagnostic techniques for the identification of tumour biomarkers, the liquid biopsy is considered one that offers future research on precision diagnosis and treatment of tumours in a non-invasive manner. The approach consists of isolating tumor-derived components, such as circulating tumour cells (CTC), tumour cell-free DNA (ctDNA), and extracellular vesicles (EVs), from the patient peripheral blood fluids. These elements constitute a source of genomic and proteomic information for cancer treatment. Within the tumour-derived components of the body fluids, the enzyme indicated with the acronym CA IX and belonging to the superfamily of carbonic anhydrases (CA, EC 4.2.1.1) is a promising aspirant for checking tumours. CA IX is a transmembrane-CA isoform that is strongly overexpressed in many cancers being not much diffused in healthy tissues except the gastrointestinal tract. Here, it is summarised the role of CA IX as tumour-associated protein and its putative relationship in liquid biopsyfor diagnosing and monitoring cancer progression.
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Affiliation(s)
- Ozen Ozensoy Guler
- Department of Medical Biology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - Claudiu. T. Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Firenze, Italy
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
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21
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Alissa SA, Alghulikah HA, Alothman ZA, Osman SM, Del Prete S, Capasso C, Nocentini A, Supuran CT. Phosphonamidates are the first phosphorus-based zinc binding motif to show inhibition of β-class carbonic anhydrases from bacteria, fungi, and protozoa. J Enzyme Inhib Med Chem 2020; 35:59-64. [PMID: 31663383 PMCID: PMC6830296 DOI: 10.1080/14756366.2019.1681987] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/05/2019] [Accepted: 10/10/2019] [Indexed: 12/26/2022] Open
Abstract
A primary strategy to combat antimicrobial resistance is the identification of novel therapeutic targets and anti-infectives with alternative mechanisms of action. The inhibition of the metalloenzymes carbonic anhydrases (CAs, EC 4.2.1.1) from pathogens (bacteria, fungi, and protozoa) was shown to produce an impairment of the microorganism growth and virulence. As phosphonamidates have been recently validated as human α-CA inhibitors (CAIs) and no phosphorus-based zinc-binding group have been assessed to date against β-class CAs, herein we report an inhibition study with this class of compounds against β-CAs from pathogenic bacteria, fungi, and protozoa. Our data suggest that phosphonamidates are among the CAIs with the best selectivity for β-class over human isozymes, making them interesting leads for the development of new anti-infectives.
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Affiliation(s)
- Siham A. Alissa
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Hanan A. Alghulikah
- Chemistry Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Zeid A. Alothman
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sameh M. Osman
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | | | - Alessio Nocentini
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Firenze), Italy
| | - Claudiu T. Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Firenze), Italy
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22
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Bonardi A, Nocentini A, Cadoni R, del Prete S, Dumy P, Capasso C, Gratteri P, Supuran CT, Winum JY. Benzoxaboroles: New Potent Inhibitors of the Carbonic Anhydrases of the Pathogenic Bacterium Vibrio cholerae. ACS Med Chem Lett 2020; 11:2277-2284. [PMID: 33214840 DOI: 10.1021/acsmedchemlett.0c00403] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/09/2020] [Indexed: 01/22/2023] Open
Abstract
A series of urea/thiourea substituted benzoxaboroles was investigated for the inhibition of the three carbonic anhydrases encoded by Vibrio cholerae (VchCAα, VchCAβ, and VchCAγ). In particular, benzoxaborole derivatives were here first assayed for the inhibition of a γ-class CA, extending the panel of CA classes that benzoxaboroles efficiently target beyond α and β. Inhibition profiles demonstrated that VchCAα was significantly more inhibited compared to VchCAγ and, in turn, more efficiently modulated than VchCAβ. Among the many selective benzoxaborole ligands detected against VchCAα over the off-target hCA II, compound 18, a p-NO2-phenylthiourea derivative, even exhibited a fully selective inhibition profile against the three VchCAs over hCA II. A comprehensive ligand/target interaction study was performed in silico for all three VchCA isoforms providing the first molecular modeling investigation with inhibitors of a γ-class CA to the best of our knowledge. The present study reinforces the rationale behind the use of benzoxaboroles as innovative antibacterial agents with a new mechanism of action, furnishing suggestions for the rational design of new potent and selective inhibitors targeting V. cholerae CAs over human off-target ones.
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Affiliation(s)
- Alessandro Bonardi
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, 50121 Florence, Italy
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, 50121 Florence, Italy
| | - Alessio Nocentini
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, 50121 Florence, Italy
- IBMM, Univ Montpellier, CNRS, ENSCM, 34296 Montpellier, France
| | - Roberta Cadoni
- IBMM, Univ Montpellier, CNRS, ENSCM, 34296 Montpellier, France
| | - Sonia del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Pascal Dumy
- IBMM, Univ Montpellier, CNRS, ENSCM, 34296 Montpellier, France
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy
| | - Paola Gratteri
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, 50121 Florence, Italy
| | - Claudiu T. Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, 50121 Florence, Italy
| | - Jean-Yves Winum
- IBMM, Univ Montpellier, CNRS, ENSCM, 34296 Montpellier, France
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Mancuso F, De Luca L, Angeli A, Berrino E, Del Prete S, Capasso C, Supuran CT, Gitto R. In Silico-Guided Identification of New Potent Inhibitors of Carbonic Anhydrases Expressed in Vibrio cholerae. ACS Med Chem Lett 2020; 11:2294-2299. [PMID: 33214843 DOI: 10.1021/acsmedchemlett.0c00417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/01/2020] [Indexed: 01/01/2023] Open
Abstract
Carbonic anhydrases from Vibrio cholerae (VchCAs) play a significant role in bacterial pathophysiological processes. Therefore, their inhibition leads to a reduction of gene expression virulence and bacterial growth impairment. Herein, we report the first ligand-based pharmacophore model as a computational tool to study selective inhibitors of the β-class of VchCA. By a virtual screening on a collection of sulfonamides, we retrieved 9 compounds that were synthesized and evaluated for their inhibitory effects against VchCAβ as well as α- and γ-classes of VchCAs and selectivity over human ubiquitous isoforms hCA I and II. Notably, all tested compounds were active inhibitors of VchCAs. The N-(4-sulfamoylbenzyl)-[1,1'-biphenyl]-4-carboxamide (20e) stood out as the most exciting inhibitor toward the β-class (K i = 95.6 nM), also showing a low affinity against the tested human isoforms. By applying docking procedures, we described the binding mode of the inhibitor 20e within the catalytic cavity of the modeled open conformation of VchCAβ.
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Affiliation(s)
- Francesca Mancuso
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (CHIBIOFARAM), Università degli Studi di Messina, Viale Palatucci 13, I-98168 Messina, Italy
| | - Laura De Luca
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (CHIBIOFARAM), Università degli Studi di Messina, Viale Palatucci 13, I-98168 Messina, Italy
| | - Andrea Angeli
- Dipartimento NEUROFARBA, Università di Firenze, Via Ugo Schiff, I-50019 Sesto Fiorentino, Italy
| | - Emanuela Berrino
- Dipartimento NEUROFARBA, Università di Firenze, Via Ugo Schiff, I-50019 Sesto Fiorentino, Italy
| | - Sonia Del Prete
- Istituto di Bioscienze e Biorisorse - CNR, Via Pietro Castellino 111 - I-80131 Napoli, Italy
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse - CNR, Via Pietro Castellino 111 - I-80131 Napoli, Italy
| | - Claudiu T. Supuran
- Dipartimento NEUROFARBA, Università di Firenze, Via Ugo Schiff, I-50019 Sesto Fiorentino, Italy
| | - Rosaria Gitto
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (CHIBIOFARAM), Università degli Studi di Messina, Viale Palatucci 13, I-98168 Messina, Italy
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Supuran CT, Capasso C. Antibacterial carbonic anhydrase inhibitors: an update on the recent literature. Expert Opin Ther Pat 2020; 30:963-982. [PMID: 32806966 DOI: 10.1080/13543776.2020.1811853] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION The clinically licensed drugs used as antibiotics prevent the microbial growth interfering with the biosynthesis of proteins, nucleic acids, microorganism wall biosynthesis or wall permeability, and microbial metabolic pathways. A serious, emerging problem is the arisen of extensive drug resistance afflicting most countries worldwide. AREAS COVERED An exciting approach to fight drug resistance is the identification of essential enzymes encoded by pathogen genomes. Inhibition of such enzymes may impair microbial growth or virulence due to interference with crucial metabolic processes. Genome exploration of pathogenic and nonpathogenic microorganisms has revealed carbonic anhydrases (CAs, EC 4.2.1.1) as possible antibacterial targets. EXPERT OPINION Balancing the equilibrium between CO2 and HCO3 - is essential for microbial metabolism and is regulated by at least four classes of CAs. Classical CA inhibitors (CAIs) such as ethoxzolamide were shown to kill the gastric pathogen Helicobacter pylori in vitro, whereas acetazolamide and some of its more lipophilic derivatives were shown to be effective against vancomycin-resistant Enterococcus spp., with MICs in the range of 0.007-2 µg/mL, better than linezolid, the only clinically used agent available to date. Such results reinforce the rationale of considering existing and newly designed CAIs as antibacterials with an alternative mechanism of action.
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Del Prete S, De Luca V, Bua S, Nocentini A, Carginale V, Supuran CT, Capasso C. The Effect of Substituted Benzene-Sulfonamides and Clinically Licensed Drugs on the Catalytic Activity of CynT2, a Carbonic Anhydrase Crucial for Escherichia coli Life Cycle. Int J Mol Sci 2020; 21:ijms21114175. [PMID: 32545297 PMCID: PMC7312386 DOI: 10.3390/ijms21114175] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 12/17/2022] Open
Abstract
Proteins are relevant antimicrobial drug targets, and among them, enzymes represent a significant group, since most of them catalyze reactions essential for supporting the central metabolism, or are necessary for the pathogen vitality. Genomic exploration of pathogenic and non-pathogenic microorganisms has revealed genes encoding for a superfamily of metalloenzymes, known as carbonic anhydrases (CAs, EC 4.2.1.1). CAs catalyze the physiologically crucial reversible reaction of the carbon dioxide hydration to bicarbonate and protons. Herein, we investigated the sulfonamide inhibition profile of the recombinant β-CA (CynT2) identified in the genome of the Gram-negative bacterium Escherichia coli. This biocatalyst is indispensable for the growth of the microbe at atmospheric pCO2. Surprisingly, this enzyme has not been investigated for its inhibition with any class of CA inhibitors. Here, we show that CynT2 was strongly inhibited by some substituted benzene-sulfonamides and the clinically used inhibitor sulpiride (KIs in the range of 82–97 nM). This study may be relevant for identifying novel CA inhibitors, as well as for another essential part of the drug discovery pipeline, such as the structure–activity relationship for this class of enzyme inhibitors.
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Affiliation(s)
- Sonia Del Prete
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (S.D.P.); (V.D.L.); (V.C.)
| | - Viviana De Luca
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (S.D.P.); (V.D.L.); (V.C.)
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, CNR, Via Argine 1085, 80147 Naples, Italy
| | - Silvia Bua
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy; (S.B.); (A.N.)
| | - Alessio Nocentini
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy; (S.B.); (A.N.)
| | - Vincenzo Carginale
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (S.D.P.); (V.D.L.); (V.C.)
| | - Claudiu T. Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neurofarba, University of Florence, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy; (S.B.); (A.N.)
- 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; (S.D.P.); (V.D.L.); (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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Del Prete S, De Luca V, Nocentini A, Scaloni A, Mastrolorenzo MD, Supuran CT, Capasso C. Anion Inhibition Studies of the Beta-Carbonic Anhydrase from Escherichia coli. Molecules 2020; 25:E2564. [PMID: 32486444 PMCID: PMC7321114 DOI: 10.3390/molecules25112564] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 12/15/2022] Open
Abstract
The interconversion of CO2 and HCO3- is catalyzed by a superfamily of metalloenzymes, known as carbonic anhydrases (CAs, EC 4.2.1.1), which maintain the equilibrium between dissolved inorganic CO2 and HCO3-. In the genome of Escherichia coli, a Gram-negative bacterium typically colonizing the lower intestine of warm-blooded organisms, the cyn operon gene includes the CynT gene, encoding for a β-CA, and CynS gene, encoding for the cyanase. CynT (β-CA) prevents the depletion of the cellular bicarbonate, which is further used in the reaction catalyzed by cyanase. A second β-CA (CynT2 or Can or yadF), as well as a γ and ι-CAs were also identified in the E. coli genome. CynT2 is essential for bacterial growth at atmospheric CO2 concentration. Here, we characterized the kinetic properties and the anion inhibition profiles of recombinant CynT2. The enzyme showed a good activity for the physiological CO2 hydratase reaction with the following parameters: kcat = 5.3 × 105 s-1 and kcat/KM = of 4.1 × 107 M-1 s-1. Sulfamide, sulfamate, phenylboronic acid, phenylarsonic acid, and diethyldithiocarbamate were the most effective CynT2 inhibitors (KI = 2.5 to 84 µM). The anions allowed for a detailed understanding of the interaction of inhibitors with the amino acid residues surrounding the catalytic pocket of the enzyme and may be used as leads for the design of more efficient and specific inhibitors.
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Affiliation(s)
- Sonia Del Prete
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (S.D.P.); (V.D.L.)
| | - Viviana De Luca
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (S.D.P.); (V.D.L.)
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, CNR, Via Argine 1085, 80147 Naples, Italy,
| | - Alessio Nocentini
- Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy; (A.N.); (M.D.M.)
| | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, CNR, Via Argine 1085, 80147 Naples, Italy,
| | - Margaret D. Mastrolorenzo
- Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy; (A.N.); (M.D.M.)
- University of California, San Diego (UCSD), 3425 Lebon Drive, Unit 918, San Diego, CA 92122, USA
| | - Claudiu T. Supuran
- Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy; (A.N.); (M.D.M.)
| | - Clemente Capasso
- Institute of Biosciences and Bioresources, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy; (S.D.P.); (V.D.L.)
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Debbabi KF, Al-Harbi SA, Al-Saidi HM, Aljuhani EH, Felaly RN, Abd El-Gilil SM, Bashandy MS, Jannet HB. Synthesis, anticancer, antimicrobial, anti-tuberculosis and molecular docking of heterocyclic N-ethyl-N-methylbenzenesulfonamide derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sulfonamide Inhibition Profile of the β-Carbonic Anhydrase from Malassezia restricta, An Opportunistic Pathogen Triggering Scalp Conditions. Metabolites 2020; 10:metabo10010039. [PMID: 31963335 PMCID: PMC7023381 DOI: 10.3390/metabo10010039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/13/2020] [Accepted: 01/16/2020] [Indexed: 02/06/2023] Open
Abstract
The critical CO2 hydration reaction to bicarbonate and protons is catalyzed by carbonic anhydrases (CAs, EC 4.2.1.1). Their physiological role is to assist the transport of the CO2 and HCO3− at the cellular level, which will not be ensured by the low velocity of the uncatalyzed reaction. CA inhibition may impair the growth of microorganisms. In the yeasts, Candida albicans and Malassezia globosa, the activity of the unique β-CA identified in their genomes was demonstrated to be essential for growth of the pathogen. Here, we decided to investigate the sulfonamide inhibition profile of the homologous β-CA (MreCA) identified in the genome of Malassezia restricta, an opportunistic pathogen triggering dandruff and seborrheic dermatitis. Among 40 investigated derivatives, the best MreCA sulfonamide inhibitors were dorzolamide, brinzolamide, indisulam, valdecoxib, sulthiam, and acetazolamide (KI < 1.0 μM). The MreCA inhibition profile was different from those of the homologous enzyme from Malassezia globosa (MgCA) and the human isoenzymes (hCA I and hCA II). These results might be useful to for designing CA inhibitor scaffolds that may selectively inhibit the dandruff-producing fungi.
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Anion Inhibition Profile of the β-Carbonic Anhydrase from the Opportunist Pathogenic Fungus Malassezia Restricta Involved in Dandruff and Seborrheic Dermatitis. Metabolites 2019; 9:metabo9070147. [PMID: 31323880 PMCID: PMC6680850 DOI: 10.3390/metabo9070147] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/11/2019] [Accepted: 07/16/2019] [Indexed: 12/14/2022] Open
Abstract
Carbonic anhydrases (CAs, EC 4.2.1.1) are ubiquitous metalloenzymes, which catalyze the crucial physiological CO2 hydration/dehydration reaction (CO2 + H2O ⇌ HCO3- + H+) balancing the equilibrium between CO2, H2CO3, HCO3- and CO32-. It has been demonstrated that their selective inhibition alters the equilibrium of the metabolites above affecting the biosynthesis and energy metabolism of the organism. In this context, our interest has been focalized on the fungus Malassezia restricta, which may trigger dandruff and seborrheic dermatitis altering the complex bacterial and fungal equilibrium of the human scalp. We investigated a rather large number of inorganic metal-complexing anions (a well-known class of CA inhibitors) for their interaction with the β-CA (MreCA) encoded by the M. restricta genome. The results were compared with those obtained for the two human ?-CA isoforms (hCAI and hCAII) and the β-CA from Malassezia globosa. The most effective MreCA inhibitors were diethyldithiocarbamate, sulfamide, phenyl arsenic acid, stannate, tellurate, tetraborate, selenocyanate, trithiocarbonate, and bicarbonate. The different KI values obtained for the four proteins investigated might be attributed to the architectural features of their catalytic site. The anion inhibition profile is essential for better understanding the inhibition/catalytic mechanisms of these enzymes and for designing novel types of inhibitors, which may have clinical applications for the management of dandruff and seborrheic dermatitis.
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Jaya P, Nathan VK, Ammini P. Characterization of marine bacterial carbonic anhydrase and their CO 2 sequestration abilities based on a soil microcosm. Prep Biochem Biotechnol 2019; 49:891-899. [PMID: 31244362 DOI: 10.1080/10826068.2019.1633669] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The novel technology of biological carbon sequestration using microbial enzymes have numerous advantages over conventional sequestration strategies. In the present study, extracellular carbonic anhydrase (CA) producing bacteria were isolated from water samples in the Arabian Sea, India. A potential isolate, Bacillus safensis isolate AS-75 was identified based on 16S rDNA sequence analysis. The culture conditions suitable for CA production were 32 °C incubation temperature with 4% NaCl and 10 mM Zn supplementation. Experimental optimization of culture conditions enhanced enzyme activity to 265 U mL-1. CA specific gene was characterized and based on the analysis, the CA of B. safensis isolate AS-75 was a leucine (11.3%) with α-helices as the dominant component in its secondary structure. Based on soil microcosm studies, CA could sequester CO2 by 95.4% ± 0.11% in sterilized soil with enzyme microcosm. Hence, the application of enzyme was found to be more effective in removing CO2.
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Affiliation(s)
- Panchami Jaya
- Regional Centre, National Institute of Oceanography-CSIR , Cochin , India
| | - Vinod Kumar Nathan
- Regional Centre, National Institute of Oceanography-CSIR , Cochin , India.,School of Chemical and Biotechnology, SASTRA University , Thanjavur , India
| | - Parvathi Ammini
- Regional Centre, National Institute of Oceanography-CSIR , Cochin , India
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Del Prete S, Merlo R, Valenti A, Mattossovich R, Rossi M, Carginale V, Supuran CT, Perugino G, Capasso C. Thermostability enhancement of the α-carbonic anhydrase from Sulfurihydrogenibium yellowstonense by using the anchoring-and-self-labelling-protein-tag system (ASL tag). J Enzyme Inhib Med Chem 2019; 34:946-954. [PMID: 31039618 PMCID: PMC6493269 DOI: 10.1080/14756366.2019.1605991] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Carbonic anhydrases (CAs, EC 4.2.1.1) are a superfamily of ubiquitous metalloenzymes present in all living organisms on the planet. They are classified into seven genetically distinct families and catalyse the hydration reaction of carbon dioxide to bicarbonate and protons, as well as the opposite reaction. CAs were proposed to be used for biotechnological applications, such as the post-combustion carbon capture processes. In this context, there is a great interest in searching CAs with robust chemical and physical properties. Here, we describe the enhancement of thermostability of the α-CA from Sulfurihydrogenibium yellowstonense (SspCA) by using the anchoring-and-self-labelling-protein-tag system (ASLtag). The anchored chimeric H5-SspCA was active for the CO2 hydration reaction and its thermostability increased when the cells were heated for a prolonged period at high temperatures (e.g. 70 °C). The ASLtag can be considered as a useful method for enhancing the thermostability of a protein useful for biotechnological applications, which often need harsh operating conditions.
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Affiliation(s)
- Sonia Del Prete
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Rosa Merlo
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Anna Valenti
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Rosanna Mattossovich
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Mosè Rossi
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Vincenzo Carginale
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Claudiu T Supuran
- b Neurofarba Department , University of Florence, Polo Scientifico , Sesto Fiorentino Firenze , Italy
| | - Giuseppe Perugino
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Clemente Capasso
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
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Rogato A, Del Prete S, Nocentini A, Carginale V, Supuran CT, Capasso C. Phaeodactylum tricornutum as a model organism for testing the membrane penetrability of sulphonamide carbonic anhydrase inhibitors. J Enzyme Inhib Med Chem 2019; 34:510-518. [PMID: 30688123 PMCID: PMC6352938 DOI: 10.1080/14756366.2018.1559840] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Carbonic anhydrases (CAs) are ubiquitous metalloenzymes, which started to be investigated in detail in pathogenic, as well as non-pathogenic species since their pivotal role is to accelerate the physiological CO2 hydration/dehydration reaction significantly. Here, we propose the marine unicellular diatom Phaeodactylum tricornutum as a model organism for testing the membrane penetrability of CA inhibitors (CAIs). Seven inhibitors belonging to the sulphonamide type and possessing a diverse scaffold have been explored for their in vitro inhibition of the whole diatom CAs and the in vivo inhibitory effect on the growth of P. tricornutum. Interesting, inhibition of growth was observed, in vivo, demonstrating that this diatom is a good model for testing the cell wall penetrability of this class of pharmacological agents. Considering that many pathogens are difficult and dangerous to grow in the laboratory, the growth inhibition of P. tricornutum with different such CAIs may be subsequently used to design inhibition studies of CAs from pathogenic organisms.
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Affiliation(s)
- Alessandra Rogato
- a Institute of Bioscience and BioResources, CNR , Naples , Italy.,b Department of Integrative Marine Ecology , Stazione Zoologica Anton Dohrn , Naples , Italy
| | - Sonia Del Prete
- a Institute of Bioscience and BioResources, CNR , Naples , Italy
| | - Alessio Nocentini
- c Neurofarba Department, University of Florence, Polo Scientifico , Sesto Fiorentino , Florence , Italy
| | | | - Claudiu T Supuran
- c Neurofarba Department, University of Florence, Polo Scientifico , Sesto Fiorentino , Florence , Italy
| | - Clemente Capasso
- a Institute of Bioscience and BioResources, CNR , Naples , Italy
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Vullo D, Del Prete S, Osman SM, Alasmary FAS, AlOthman Z, Donald WA, Capasso C, Supuran CT. Comparison of the amine/amino acid activation profiles of the β- and γ-carbonic anhydrases from the pathogenic bacterium Burkholderia pseudomallei. J Enzyme Inhib Med Chem 2018; 33:25-30. [PMID: 29098887 PMCID: PMC6009869 DOI: 10.1080/14756366.2017.1387544] [Citation(s) in RCA: 14] [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: 09/20/2017] [Revised: 09/29/2017] [Accepted: 09/29/2017] [Indexed: 01/04/2023] Open
Abstract
The β-class carbonic anhydrase (CA, EC 4.2.1.1) from the pathogenic bacterium Burkholderia pseudomallei, BpsCAβ, that is responsible for the tropical disease melioidosis was investigated for its activation with natural and non-natural amino acids and amines. Previously, the γ-CA from this bacterium has been investigated with the same library of 19 amines/amino acids, which show very potent activating effects on both enzymes. The most effective BpsCAβ activators were L- and D-DOPA, L- and D-Trp, L-Tyr, 4-amino-L-Phe, histamine, dopamine, serotonin, 2-pyridyl-methylamine, 1-(2-aminoethyl)-piperazine and L-adrenaline with KAs of 0.9-27 nM. Less effective activators were D-His, L- and D-Phe, D-Tyr, 2-(2-aminoethyl)pyridine and 4-(2-aminoethyl)-morpholine with KAs of 73 nM-3.42 µM. The activation of CAs from bacteria, such as BpsCAγ/β, has not been considered previously for possible biomedical applications. It would be of interest to perform studies in which bacteria are cultivated in the presence of CA activators, which may contribute to understanding processes connected with the virulence and colonization of the host by pathogenic bacteria.
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Affiliation(s)
- Daniela Vullo
- Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Università degliStudi di Firenze, Florence, Italy
| | - Sonia Del Prete
- CNR, Istituto di Bioscienze e Biorisorse, Napoli, Italy
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
| | - Sameh M. Osman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Fatmah A. S. Alasmary
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zeid AlOthman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - William A. Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales, Australia
| | | | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy
- School of Chemistry, University of New South Wales, Sydney, New South Wales, Australia
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Bua S, Berrino E, Del Prete S, Murthy VS, Vijayakumar V, Tamboli Y, Capasso C, Cerbai E, Mugelli A, Carta F, Supuran CT. Synthesis of novel benzenesulfamide derivatives with inhibitory activity against human cytosolic carbonic anhydrase I and II and Vibrio cholerae α- and β-class enzymes. J Enzyme Inhib Med Chem 2018; 33:1125-1136. [PMID: 29987956 PMCID: PMC6041819 DOI: 10.1080/14756366.2018.1467901] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The synthesis of a new series of sulfamides incorporating ortho-, meta, and para-benzenesulfamide moieties is reported, which were investigated for the inhibition of two human (h) isoforms of the zinc enzyme carbonic anhydrase (CA, EC 4.2.1.1), hCA I and II, and two Vibrio cholerae enzymes, belonging to the α- and β-CA classes (VchCAα, VchCAβ). The compounds were prepared by using the “tail approach”, aiming to overcome the scarcity of selective inhibition profiles associated to CA inhibitors belonging to the zinc binders. The built structure–activity relationship showed that the incorporation of benzhydryl piperazine tails on a phenyl sulfamide scaffold determines rather good efficacies against hCA I and VchCAα, with several compounds showing KIs < 100 nM. The activity was lower against hCA II and VchCAβ, probably due to the fact that the incorporated tails are quite bulky. The obtained evidences allow us to continue the investigations of different tails/zinc binding groups, with the purpose to increase the effectiveness/selectivity of such inhibitors against bacterial CAs from pathogens, affording thus potential new anti-infectives.
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Affiliation(s)
- Silvia Bua
- a NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
| | - Emanuela Berrino
- a NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
| | - Sonia Del Prete
- a NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
| | - Vallabhaneni S Murthy
- b School of Advanced Sciences , Center for Organic and Medicinal Chemistry , VIT University , Vellore , India
| | | | - Yasinalli Tamboli
- b School of Advanced Sciences , Center for Organic and Medicinal Chemistry , VIT University , Vellore , India
| | | | - Elisabetta Cerbai
- d Department of Neurosciences, Psychology, Drug's Research and Child's Health (NEUROFARBA) , University of Florence , Firenze , Italy.,e Section of Pharmacology and Toxicology , Firenze , Italy
| | - Alessandro Mugelli
- d Department of Neurosciences, Psychology, Drug's Research and Child's Health (NEUROFARBA) , University of Florence , Firenze , Italy.,e Section of Pharmacology and Toxicology , Firenze , Italy
| | - Fabrizio Carta
- a NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
| | - Claudiu T Supuran
- a NEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
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Abstract
INTRODUCTION The hydration/dehydration of CO2 catalyzed by carbonic anhydrases (CAs, EC 4.2.1.1) is a crucial physiological reaction for the survival of all living organisms because it is connected with numerous biosynthetic and biochemical pathways requiring CO2 or HCO3-, such as respiration, photosynthesis, carboxylation reactions, pH homeostasis, secretion of electrolytes, transport of CO2, bicarbonate, etc. AREAS COVERED The bacterial genome encodes CAs belonging to the α-, β-, and γ-CA classes able to ensure the survival and/or satisfying the metabolic needs of the bacteria, as demonstrated by in vivo and in vitro experiments. The discovery of new anti-infectives that target new bacterial pathways, such as those involving CAs, may lead to effective therapies against diseases subject to the antibiotic resistance. This aspect is important in pharmaceutical and biomedical research but received little attention till recently. EXPERT OPINION An overview of the potential use of CAs in biomedical applications, as drug targets, bioindicators, and within artificial organs is presented. The discovery of thermostable bacterial CAs allowed the use of CAs in biotechnological applications, but patents related to the use of bacterial CAs in the development of pharmacological agents are scarce.
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Affiliation(s)
- Claudiu T Supuran
- a Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Florence , Italy
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Abdoli M, Bozdag M, Angeli A, Supuran CT. Benzamide-4-Sulfonamides Are Effective Human Carbonic Anhydrase I, II, VII, and IX Inhibitors. Metabolites 2018; 8:metabo8020037. [PMID: 29857578 PMCID: PMC6027465 DOI: 10.3390/metabo8020037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 05/26/2018] [Accepted: 05/30/2018] [Indexed: 12/17/2022] Open
Abstract
A series of benzamides incorporating 4-sulfamoyl moieties were obtained by reacting 4-sulfamoyl benzoic acid with primary and secondary amines and amino acids. These sulfonamides were investigated as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). The human (h) isoforms hCA II, VII, and IX were inhibited in the low nanomolar or subnanomolar ranges, whereas hCA I was slightly less sensitive to inhibition (KIs of 5.3–334 nM). The β- and γ-class CAs from pathogenic bacteria and fungi, such as Vibrio cholerae and Malassezia globosa, were inhibited in the micromolar range by the sulfonamides reported in the paper. The benzamide-4-sulfonamides are a promising class of highly effective CA inhibitors.
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Affiliation(s)
- Morteza Abdoli
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy.
- Department of Chemistry, Faculty of Science, Lorestan University, Khorramabad 6813833946, Iran.
| | - Murat Bozdag
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy.
| | - Andrea Angeli
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy.
| | - Claudiu T Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Via U. Schiff 6, Sesto Fiorentino, 50019 Florence, Italy.
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Del Prete S, Vullo D, Caminiti-Segonds N, Zoccola D, Tambutté S, Supuran CT, Capasso C. Protonography and anion inhibition profile of the α-carbonic anhydrase (CruCA4) identified in the Mediterranean red coral Corallium rubrum. Bioorg Chem 2017; 76:281-287. [PMID: 29223031 DOI: 10.1016/j.bioorg.2017.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/06/2017] [Accepted: 12/03/2017] [Indexed: 12/19/2022]
Abstract
CruCA4 is a secreted isoform of the α-carbonic anhydrase (CA, EC 4.2.1.1) family, which has been identified in the octocoral Corallium rubrum. This enzyme is involved in the calcification process leading to the formation of the coral calcium carbonate skeleton. We report here experiments performed on the recombinant CruCA4 with the technique of protonography that can be used to detect in a simple way the enzyme activity. We have also investigated the inhibition profile of CruCA4 with one major class of CA inhibitors, the inorganic anions. A range of weak and moderate inhibitors have been identified having KI in the range of 1-100 mM, among which the halides, pseudohalides, bicarbonate, sulfate, nitrate, nitrite, and many complex inorganic anions. Stronger inhibitors were sulfamide, sulfamate, phenylboronic acid, phenylarsonic acid, and diethylditiocarbamate, which showed a better affinity for this enzyme, with KI in the range of 75 μM-0.60 mM. All these anions/small molecules probably coordinate to the Zn(II) ion within the CA active site as enzyme inhibition mechanism.
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Affiliation(s)
- Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy
| | - Daniela Vullo
- Università degli Studi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | | | - Didier Zoccola
- Centre Scientifique de Monaco, 8 Quai Antoine 1°, 98 000, Monaco
| | - Sylvie Tambutté
- Centre Scientifique de Monaco, 8 Quai Antoine 1°, 98 000, Monaco
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy.
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Angeli A, Abbas G, Del Prete S, Carta F, Capasso C, Supuran CT. Acyl selenoureido benzensulfonamides show potent inhibitory activity against carbonic anhydrases from the pathogenic bacterium Vibrio cholerae. Bioorg Chem 2017; 75:170-172. [DOI: 10.1016/j.bioorg.2017.09.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/19/2017] [Accepted: 09/20/2017] [Indexed: 01/08/2023]
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An Overview of the Bacterial Carbonic Anhydrases. Metabolites 2017; 7:metabo7040056. [PMID: 29137134 PMCID: PMC5746736 DOI: 10.3390/metabo7040056] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 11/08/2017] [Accepted: 11/08/2017] [Indexed: 12/12/2022] Open
Abstract
Bacteria encode carbonic anhydrases (CAs, EC 4.2.1.1) belonging to three different genetic families, the α-, β-, and γ-classes. By equilibrating CO2 and bicarbonate, these metalloenzymes interfere with pH regulation and other crucial physiological processes of these organisms. The detailed investigations of many such enzymes from pathogenic and non-pathogenic bacteria afford the opportunity to design both novel therapeutic agents, as well as biomimetic processes, for example, for CO2 capture. Investigation of bacterial CA inhibitors and activators may be relevant for finding antibiotics with a new mechanism of action.
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Perfetto R, Del Prete S, Vullo D, Carginale V, Sansone G, Barone CMA, Rossi M, Alasmary FAS, Osman SM, AlOthman Z, Supuran CT, Capasso C. Cloning, expression and purification of the α-carbonic anhydrase from the mantle of the Mediterranean mussel, Mytilus galloprovincialis. J Enzyme Inhib Med Chem 2017; 32:1029-1035. [PMID: 28741386 PMCID: PMC6010101 DOI: 10.1080/14756366.2017.1353502] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
We cloned, expressed, purified, and determined the kinetic constants of the recombinant α-carbonic anhydrase (rec-MgaCA) identified in the mantle tissue of the bivalve Mediterranean mussel, Mytilus galloprovincialis. In metazoans, the α-CA family is largely represented and plays a pivotal role in the deposition of calcium carbonate biominerals. Our results demonstrated that rec-MgaCA was a monomer with an apparent molecular weight of about 32 kDa. Moreover, the determined kinetic parameters for the CO2 hydration reaction were kcat = 4.2 × 105 s−1 and kcat/Km of 3.5 × 107 M−1 ×s−1. Curiously, the rec-MgaCA showed a very similar kinetic and acetazolamide inhibition features when compared to those of the native enzyme (MgaCA), which has a molecular weight of 50 kDa. Analysing the SDS-PAGE, the protonography, and the kinetic analysis performed on the native and recombinant enzyme, we hypothesised that probably the native MgaCA is a multidomain protein with a single CA domain at the N-terminus of the protein. This hypothesis is corroborated by the existence in mollusks of multidomain proteins with a hydratase activity. Among these proteins, nacrein is an example of α-CA multidomain proteins characterised by a single CA domain at the N-terminus part of the entire protein.
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Affiliation(s)
- Rosa Perfetto
- a Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Sonia Del Prete
- a Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy.,b Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Sesto Fiorentino, Florence , Italy
| | - Daniela Vullo
- b Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Sesto Fiorentino, Florence , Italy
| | | | - Giovanni Sansone
- c Dipartimento di Biologia , Università degli Studi di Napoli, Federico II , Napoli , Italy
| | - Carmela M A Barone
- d Dipartimento di Agraria , Università degli Studi di Napoli, Federico II , Portici, Napoli , Italy
| | - Mosè Rossi
- a Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Fatmah A S Alasmary
- e Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Sesto Fiorentino , Florence , Italy
| | - Sameh M Osman
- e Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Sesto Fiorentino , Florence , Italy
| | - Zeid AlOthman
- e Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Sesto Fiorentino , Florence , Italy
| | - Claudiu T Supuran
- b Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Sesto Fiorentino, Florence , Italy.,e Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Sesto Fiorentino , Florence , Italy.,f Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
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Del Prete S, Perfetto R, Rossi M, Alasmary FAS, Osman SM, AlOthman Z, Supuran CT, Capasso C. A one-step procedure for immobilising the thermostable carbonic anhydrase (SspCA) on the surface membrane of Escherichia coli. J Enzyme Inhib Med Chem 2017; 32:1120-1128. [PMID: 28791907 PMCID: PMC6010132 DOI: 10.1080/14756366.2017.1355794] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The carbonic anhydrase superfamily (CA, EC 4.2.1.1) of metalloenzymes is present in all three domains of life (Eubacteria, Archaea, and Eukarya), being an interesting example of convergent/divergent evolution, with its seven families (α-, β-, γ-, δ-, ζ-, η-, and θ-CAs) described so far. CAs catalyse the simple, but physiologically crucial reaction of carbon dioxide hydration to bicarbonate and protons. Recently, our groups characterised the α-CA from the thermophilic bacterium, Sulfurihydrogenibium yellowstonense finding a very high catalytic activity for the CO2 hydration reaction (kcat = 9.35 × 105 s-1 and kcat/Km = 1.1 × 108 M-1 s-1) which was maintained after heating the enzyme at 80 °C for 3 h. This highly thermostable SspCA was covalently immobilised within polyurethane foam and onto the surface of magnetic Fe3O4 nanoparticles. Here, we describe a one-step procedure for immobilising the thermostable SspCA directly on the surface membrane of Escherichia coli, using the INPN domain of Pseudomonas syringae. This strategy has clear advantages with respect to other methods, which require as the first step the production and the purification of the biocatalyst, and as the second step the immobilisation of the enzyme onto a specific support. Our results demonstrate that thermostable SspCA fused to the INPN domain of P. syringae ice nucleation protein (INP) was correctly expressed on the outer membrane of engineered E. coli cells, affording for an easy approach to design biotechnological applications for this highly effective thermostable catalyst.
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Affiliation(s)
- Sonia Del Prete
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy.,b Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Florence , Italy
| | - Rosa Perfetto
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Mosè Rossi
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Fatmah A S Alasmary
- c Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Sameh M Osman
- c Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Zeid AlOthman
- c Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Claudiu T Supuran
- b Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Florence , Italy
| | - Clemente Capasso
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
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Sequence Analysis, Kinetic Constants, and Anion Inhibition Profile of the Nacrein-Like Protein (CgiNAP2X1) from the Pacific Oyster Magallana gigas (Ex-Crassostrea gigas). Mar Drugs 2017; 15:md15090270. [PMID: 28846630 PMCID: PMC5618409 DOI: 10.3390/md15090270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 08/21/2017] [Accepted: 08/23/2017] [Indexed: 12/31/2022] Open
Abstract
The carbonic anhydrase (CA, EC 4.2.1.1) superfamily of metalloenzymes catalyzes the hydration of carbon dioxide to bicarbonate and protons. The catalytically active form of these enzymes incorporates a metal hydroxide derivative, the formation of which is the rate-determining step of catalytic reaction, being affected by the transfer of a proton from a metal-coordinated water molecule to the environment. Here, we report the cloning, expression, and purification of a particular CA, i.e., nacrein-like protein encoded in the genome of the Pacific oyster Magallana gigas (previously known as Crassostrea gigas). Furthermore, the amino acid sequence, kinetic constants, and anion inhibition profile of the recombinant enzyme were investigated for the first time. The new protein, CgiNAP2X1, is highly effective as catalyst for the CO2 hydration reaction, based on the measured kinetic parameters, i.e., kcat = 1.0 × 106 s−1 and kcat/KM = 1.2 × 108 M−1·s−1. CgiNAP2X1 has a putative signal peptide, which probably allows an extracellular localization of the protein. The inhibition data demonstrated that the best anion inhibitors of CgiNAP2X1 were diethyldithiocarbamate, sulfamide, sulfamate, phenylboronic acid and phenylarsonic acid, which showed a micromolar affinity for this enzyme, with KIs in the range of 76–87 μM. These studies may add new information on the physiological role of the molluskan CAs in the biocalcification processes.
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Anion inhibitors of the β-carbonic anhydrase from the pathogenic bacterium responsible of tularemia, Francisella tularensis. Bioorg Med Chem 2017; 25:4800-4804. [PMID: 28754318 DOI: 10.1016/j.bmc.2017.07.033] [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: 05/16/2017] [Revised: 05/29/2017] [Accepted: 07/15/2017] [Indexed: 11/21/2022]
Abstract
A β-class carbonic anhydrase (CA, EC 4.2.1.1) from the pathogenic bacterium Francisella tularensis (FtuβCA) was cloned and purified, and the anion inhibition profile was investigated. Based on the measured kinetic parameters for the enzyme catalyzed CO2 hydration reaction (kcat of 9.8×105s-1 and a kcat/KM of 8.9×107M-1s-1), FtuβCA is a highly effective enzyme. The activity of FtuβCA was not inhibited by a range of anions that do not typically coordinate Zn(II) effectively, including perchlorate, tetrafluoroborate, and hexafluorophosphate. Surprisingly, some anions which generally complex well with many cations, including Zn(II), also did not effectively inhibit FtuβCA, e.g., fluoride, cyanide, azide, nitrite, bisulphite, sulfate, tellurate, perrhenate, perrhuthenate, and peroxydisulfate. However, the most effective inhibitors were in the range of 90-94µM (sulfamide, sulfamic acid, phenylarsonic and phenylboronic acid). N,N-Diethyldithiocarbamate (KI of 0.31mM) was a moderately potent inhibitor. As Francisella tularensis is the causative agent of tularemia, the discovery of compounds that can interfere with the life cycle of this pathogen may result in novel opportunities to fight antibiotic drug resistance.
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Carbonic Anhydrase from Porphyromonas Gingivalis as a Drug Target. Pathogens 2017; 6:pathogens6030030. [PMID: 28714894 PMCID: PMC5617987 DOI: 10.3390/pathogens6030030] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 07/11/2017] [Accepted: 07/11/2017] [Indexed: 12/15/2022] Open
Abstract
Periodontitis originates from a microbial synergy causing the development of a mouth microbial imbalance (dysbiosis), consisting of a microbial community composed of anaerobic bacteria. Most studies concerning the treatment of periodontitis have primarily take into account the Gram-negative bacterium Porphyromonas gingivalis, because it is a prominent component of the oral microbiome and a successful colonizer of the oral epithelium. Here, we focus our attention on the study of the carbonic anhydrases (CAs, EC 4.2.1.1) encoded in the genome of this pathogen as a possible drug target. Carbonic anhydrases are a superfamily of metalloenzymes, which catalyze the simple but physiologically crucial reaction of carbon dioxide hydration to bicarbonate and protons. Bacterial CAs have attracted significant attention for affecting the survival, invasion, and pathogenicity of many microorganisms. The P. gingivalis genome encodes for two CAs belonging to β-CA (PgiCAβ) and γ-CA (PgiCAγ) families. These two enzymes were cloned, heterologously expressed in Escherichia coli, and purified to homogeneity. Moreover, they were subject to extensive inhibition studies using the classical CA inhibitors (sulfonamides and anions) with the aim of identifying selective inhibitors of PgiCAβ and PgiCAγ to be used as pharmacological tools for P. gingivalis eradication.
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Sulfonamide inhibition profiles of the β-carbonic anhydrase from the pathogenic bacterium Francisella tularensis responsible of the febrile illness tularemia. Bioorg Med Chem 2017; 25:3555-3561. [DOI: 10.1016/j.bmc.2017.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 04/28/2017] [Accepted: 05/04/2017] [Indexed: 12/14/2022]
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Vullo D, Del Prete S, Di Fonzo P, Carginale V, Donald WA, Supuran CT, Capasso C. Comparison of the Sulfonamide Inhibition Profiles of the β- and γ-Carbonic Anhydrases from the Pathogenic Bacterium Burkholderia pseudomallei. Molecules 2017; 22:E421. [PMID: 28272358 PMCID: PMC6155308 DOI: 10.3390/molecules22030421] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 02/16/2017] [Accepted: 03/03/2017] [Indexed: 11/25/2022] Open
Abstract
We have cloned, purified, and characterized a β-carbonic anhydrase (CA, EC 4.2.1.1), BpsCAβ, from the pathogenic bacterium Burkholderia pseudomallei, responsible for the tropical disease melioidosis. The enzyme showed high catalytic activity for the physiologic CO₂ hydration reaction to bicarbonate and protons, with the following kinetic parameters: kcat of 1.6 × 10⁵ s-1 and kcat/KM of 3.4 × 10⁷ M-1 s-1. An inhibition study with a panel of 38 sulfonamides and one sulfamate-including 15 compounds that are used clinically-revealed an interesting structure-activity relationship for the interaction of this enzyme with these inhibitors. Many simple sulfonamides and clinically used agents such as topiramate, sulpiride, celecoxib, valdecoxib, and sulthiame were ineffective BpsCAβ inhibitors (KI > 50 µM). Other drugs, such as ethoxzolamide, dorzolamide, brinzolamide, zonisamide, indisulam, and hydrochlorothiazide were moderately potent micromolar inhibitors. The best inhibition was observed with benzene-1,3-disulfonamides-benzolamide and its analogs acetazolamide and methazolamide-which showed KI in the range of 185-745 nM. The inhibition profile of BpsCAβ is very different from that of the γ-class enzyme from the same pathogen, BpsCAγ. Thus, identifying compounds that would effectively interact with both enzymes is relatively challenging. However, benzolamide was one of the best inhibitors of both of these CAs with KI of 653 and 185 nM, respectively, making it an interesting lead compound for the design of more effective agents, which may be useful tools for understanding the pathogenicity of this bacterium.
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Affiliation(s)
- Daniela Vullo
- Laboratorio di Chimica Bioinorganica, Dipartimento Di Chimica, Università degli Studi di Firenze, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
| | - Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
- Sezione di Scienze Farmaceutiche e Nutraceutiche, Dipartimento Neurofarba, Università degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Pietro Di Fonzo
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - Vincenzo Carginale
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - W Alexander Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia.
| | - Claudiu T Supuran
- Sezione di Scienze Farmaceutiche e Nutraceutiche, Dipartimento Neurofarba, Università degli Studi di Firenze, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia.
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, 80131 Napoli, Italy.
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Synthesis and molecular docking against dihydrofolate reductase of novel pyridin-N-ethyl-N-methylbenzenesulfonamides as efficient anticancer and antimicrobial agents. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.11.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Sulfonamide inhibition profile of the γ-carbonic anhydrase identified in the genome of the pathogenic bacterium Burkholderia pseudomallei the etiological agent responsible of melioidosis. Bioorg Med Chem Lett 2016; 27:490-495. [PMID: 28025002 DOI: 10.1016/j.bmcl.2016.12.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/07/2016] [Accepted: 12/10/2016] [Indexed: 01/12/2023]
Abstract
A new γ-carbonic anhydrase (CA, EC 4.1.1.1) was cloned and characterized kinetically in the genome of the bacterial pathogen Burkholderia pseudomallei, the etiological agent of melioidosis, an endemic disease of tropical and sub-tropical regions of the world. The catalytic activity of this new enzyme, BpsCAγ, is significant with a kcat of 5.3×105s-1 and kcat/Km of 2.5×107M-1×s-1 for the physiologic CO2 hydration reaction. The inhibition constant value for this enzyme for 39 sulfonamide inhibitors was obtained. Acetazolamide, benzolamide and metanilamide were the most effective (KIs of 149-653nM) inhibitors of BpsCAγ activity, whereas other sulfonamides/sulfamates such as ethoxzolamide, topiramate, sulpiride, indisulam, sulthiame and saccharin were active in the micromolar range (KIs of 1.27-9.56μM). As Burkholderia pseudomallei is resistant to many classical antibiotics, identifying compounds that interfere with crucial enzymes in the B. pseudomallei life cycle may lead to antibiotics with novel mechanisms of action.
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Del Prete S, Vullo D, Di Fonzo P, Osman SM, AlOthman Z, Supuran CT, Capasso C. Anion inhibition profiles of the γ-carbonic anhydrase from the pathogenic bacterium Burkholderia pseudomallei responsible of melioidosis and highly drug resistant to common antibiotics. Bioorg Med Chem 2016; 25:575-580. [PMID: 27914949 DOI: 10.1016/j.bmc.2016.11.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/11/2016] [Accepted: 11/12/2016] [Indexed: 12/13/2022]
Abstract
Burkholderia pseudomallei is a Gram-negative saprophytic bacterium responsible of melioidosis, an endemic disease of tropical and sub-tropical regions of the world. A recombinant γ-CA (BpsγCA) identified in the genome of this bacterium was cloned and purified. Its catalytic activity and anion inhibition profiles were investigated. The enzyme was an efficient catalyst for the CO2 hydration showing a kcat of 5.3×105s-1 and kcat/Km of 2.5×107M-1×s-1. The best BpsγCA inhibitors were sulfamide, sulfamic acid, phenylboronic acid and phenylarsonic acid, which showed KI in the range of 49-83μM (these inhibitors showed millimolar inhibition constant against hCA II), followed by diethyldithiocarbamate, selenate, tellurate, perrhenate, selenocyanate, trithiocarbonate, tetraborato, pyrophosphate, stannate, carbonate, bicarbonate, azide, cyanide, thiocyanate and cyanate with KIs in the range of 0.55-9.1mM. In our laboratories, work is in progress to resolve the X-ray crystal structures of BpsγCA, which may allow the development of small molecule inhibitors with desired properties for targeting and inhibiting specifically the bacterial over the human CAs, considering the fact that B. pseudomallei is involved in a serious bacterial disease.
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Affiliation(s)
- Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy; Università degliStudi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Daniela Vullo
- Università degliStudi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Pietro Di Fonzo
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy
| | - Sameh M Osman
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Zeid AlOthman
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Claudiu T Supuran
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di ScienzeFarmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy.
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Del Prete S, Vullo D, De Luca V, Carginale V, di Fonzo P, Osman SM, AlOthman Z, Supuran CT, Capasso C. Anion inhibition profiles of the complete domain of the η-carbonic anhydrase from Plasmodium falciparum. Bioorg Med Chem 2016; 24:4410-4414. [PMID: 27480028 DOI: 10.1016/j.bmc.2016.07.034] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 07/16/2016] [Indexed: 01/08/2023]
Abstract
We have cloned, purified and investigated the catalytic activity and anion inhibition profiles of a full catalytic domain (358 amino acid residues) carbonic anhydrase (CA, EC 4.2.1.1) from Plasmodium falciparum, PfCAdom, an enzyme belonging to the η-CA class and identified in the genome of the malaria-producing protozoa. A truncated such enzyme, PfCA1, containing 235 residues was investigated earlier for its catalytic and inhibition profiles. The two enzymes were efficient catalysts for CO2 hydration: PfCAdom showed a kcat of 3.8×10(5)s(-1) and kcat/Km of 7.2×10(7)M(-1)×s(-1), whereas PfCA showed a lower activity compared to PfCAdom, with a kcat of 1.4×10(5)s(-1) and kcat/Km of 5.4×10(6)M(-1)×s(-1). PfCAdom was generally less inhibited by most anions and small molecules compared to PfCA1. The best PfCAdom inhibitors were sulfamide, sulfamic acid, phenylboronic acid and phenylarsonic acid, which showed KIs in the range of 9-68μM, followed by bicarbonate, hydrogensulfide, stannate and N,N-diethyldithiocarbamate, which were submillimolar inhibitors, with KIs in the range of 0.53-0.97mM. Malaria parasites CA inhibition was proposed as a new strategy to develop antimalarial drugs, with a novel mechanism of action.
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Affiliation(s)
- Sonia Del Prete
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy; Università degli Studi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Daniela Vullo
- Università degli Studi di Firenze, Dipartimento Di Chimica, Laboratorio di Chimica Bioinorganica, Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Viviana De Luca
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy
| | - Vincenzo Carginale
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy
| | - Pietro di Fonzo
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy
| | - Sameh M Osman
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Zeid AlOthman
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Claudiu T Supuran
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Università degli Studi di Firenze, Dipartimento Neurofarba, Sezione di ScienzeFarmaceutiche e Nutraceutiche, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Clemente Capasso
- Istituto di Bioscienze e Biorisorse, CNR, Via Pietro Castellino 111, Napoli, Italy.
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