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Yapar G, Lolak N, Bonardi A, Akocak S, Supuran CT. Exploring the potency of diazo-coumarin containing hybrid molecules: Selective inhibition of tumor-associated carbonic anhydrase isoforms IX and XII. ChemMedChem 2024; 19:e202300626. [PMID: 38193633 DOI: 10.1002/cmdc.202300626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/23/2023] [Accepted: 01/08/2024] [Indexed: 01/10/2024]
Abstract
This study introduces a series of ten hybrid molecules DK(1-10), which combine diazo and coumarin moieties along with diverse aromatic substitutions. The primary objective was to evaluate the inhibitory capabilities of these compounds against four prominent isoforms: the cytosolic hCA I and II, as well as the tumor-associated membrane-bound hCA IX and XII. Impressively, the majority of the tested compounds exhibited significant inhibition activity against the tumor-associated isoforms hCA IX and XII, with KI values ranging from 29.2 to 293.3 nM. Notably, compound DK-8 displayed particularly robust inhibitory activity against the tumor-associated membrane-bound isoforms, hCA IX and XII, yielding KI values of 32.5 and 29.2 nM, respectively. Additionally, another derivative, DK-9, containing a primary sulfonamide, exhibited notable inhibition against hCA XII with a KI value of 36.4 nM. This investigation aimed to explore the structure-activity relationships within these compounds, shedding light on how various substitutions and structural components influence their inhibitory potential. As a result, these compounds present promising candidates for further exploration in medicinal and pharmacological research. Their ability to selectively inhibit specific isoforms, particularly those associated with hypoxic tumors, suggests their potential as foundational compounds for the development of novel therapeutic agents.
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Affiliation(s)
- Gönül Yapar
- Department of Chemistry, Faculty of Arts and Sciences, Istanbul Technical University, Istanbul, 34469, Türkiye
| | - Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040, Adıyaman, Türkiye
| | - Alessandro Bonardi
- Università degli Studi di Firenze, NEUROFARBA Dept., Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019, Sesto Fiorentino (Florence), Italy
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040, Adıyaman, Türkiye
| | - Claudiu T Supuran
- Università degli Studi di Firenze, NEUROFARBA Dept., Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019, Sesto Fiorentino (Florence), Italy
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Lolak N, Akocak S, Petreni A, Budak Y, Bozgeyik E, Gurdere MB, Ceylan M, Supuran CT. 1,3-Diaryl Triazenes Incorporating Disulfonamides Show Both Antiproliferative Activity and Effective Inhibition of Tumor-associated Carbonic Anhydrases IX and XII. Anticancer Agents Med Chem 2024; 24:755-763. [PMID: 38362678 DOI: 10.2174/0118715206285326240207045249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/31/2023] [Accepted: 01/09/2024] [Indexed: 02/17/2024]
Abstract
AIM The aim of this study was to synthesize a library of novel di-sulfa drugs containing 1,3- diaryltriazene derivatives TS (1-13) by conjugation of diazonium salts of primary sulfonamides with sulfa drugs to investigate the cytotoxic effect of these new compounds in different cancer types and to determine their inhibitory activity against tumor-associated carbonic anhydrases IX and XII. MATERIALS AND METHODS A carbonic anhydrase inhibitory activity of the obtained compounds was evaluated against four selected human carbonic anhydrase isoforms (hCA I, hCA II, hCA IX and hCA XII) by a stoppedflow CO2 hydrase assay. In addition, in vitro, cytotoxicity studies were applied by using A549 (lung cancer), BEAS-2B (normal lung), MCF-7 (breast cancer), MDA-MB-231 (breast cancer), CRL-4010 (normal breast epithelium), HT-29 (colon cancer), and HCT -116 (colon cancer) cell lines. RESULTS As a result of the inhibition data, the 4-aminobenzenesulfonamide derivatives were more active than their 3-aminobenzenesulfonamide counterparts. More specifically, compounds TS-1 and TS-2, both of which have primary sulfonamides on both sides of the triazene linker, showed the best inhibitory activity against hCA IX with Ki values of 19.5 and 13.7 nM and also against hCA XII with Ki values of 6.6 and 8.3 nM, respectively. In addition, in vitro cytotoxic activity on the human breast cancer cell line MCF-7 showed that some derivatives of di-sulfa triazenes, such as TS-5 and TS-13, were more active than SLC-0111. CONCLUSION With the aim of developing more potent and isoform-selective CA inhibitors, these novel hybrid molecules containing sulfa drugs, triazene linkers, and the classical primary sulfonamide chemotype may be considered an interesting example of effective enzyme inhibitors and important anticancer agents.
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Affiliation(s)
- Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040 Adıyaman, Türkiye
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040 Adıyaman, Türkiye
| | - Andrea Petreni
- Università Degli Studi di Firenze, NEUROFARBA Department Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
| | - Yakup Budak
- Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpaşa University, 60250 Tokat, Türkiye
| | - Esra Bozgeyik
- Department of Medical Services and Techniques, Vocational School of Health Services, Adıyaman University, 02040 Adıyaman, Türkiye
| | - Meliha Burcu Gurdere
- Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpaşa University, 60250 Tokat, Türkiye
| | - Mustafa Ceylan
- Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpaşa University, 60250 Tokat, Türkiye
| | - Claudiu Trandafir Supuran
- Università Degli Studi di Firenze, NEUROFARBA Department Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
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Tekeli T, Akocak S, Petreni A, Lolak N, Çete S, Supuran CT. Potent carbonic anhydrase I, II, IX and XII inhibition activity of novel primary benzenesulfonamides incorporating bis-ureido moieties. J Enzyme Inhib Med Chem 2023; 38:2185762. [PMID: 36880350 PMCID: PMC9987750 DOI: 10.1080/14756366.2023.2185762] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
A novel series of twelve aromatic bis-ureido-substituted benzenesulfonamides was synthesised by conjugation of aromatic aminobenzenesulfonamides with aromatic bis-isocyanates. The obtained bis-ureido-substituted derivatives were tested against four selected human carbonic anhydrase isoforms (hCA I, hCA II, hCA IX and hCA XII). Most of the new compounds showed an effective inhibitory profile against isoforms hCA IX and hCA XII, also having some selectivity with respect to hCA I and hCA II. The inhibition constants of these compounds against isoforms hCA IX and XII were in the range of 6.73-835 and 5.02-429 nM, respectively. Since hCA IX and hCA XII are important drug targets for anti-cancer/anti-metastatic drugs, these effective inhibitors reported here may be considered of interest for cancer related studies in which these enzymes are involved.
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Affiliation(s)
- Tuba Tekeli
- Vocational School of Technical Science, Department of Chemistry and Chemical Processing Technologies, Adıyaman University, Adıyaman, Türkiye.,Department of Chemistry, Faculty of Science, Gazi University, Ankara, Türkiye
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Türkiye
| | - Andrea Petreni
- NEUROFARBA Dept., Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy
| | - Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Türkiye
| | - Servet Çete
- Department of Chemistry, Faculty of Science, Gazi University, Ankara, Türkiye
| | - Claudiu T Supuran
- NEUROFARBA Dept., Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy
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Alkhayal Z, Shinwari Z, Gaafar A, Alaiya A. Fluconazole-Induced Protein Changes in Osteogenic and Immune Metabolic Pathways of Dental Pulp Mesenchymal Stem Cells of Osteopetrosis Patients. Int J Mol Sci 2023; 24:13841. [PMID: 37762144 PMCID: PMC10531073 DOI: 10.3390/ijms241813841] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/11/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Osteopetrosis is a rare inherited disease caused by osteoclast failure, resulting in increasing bone density in humans. Patients with osteopetrosis possess several dental and cranial complications. Since carbonic anhydrase II (CA-II) deficiency is a major cause of osteopetrosis, CA-II activators might be an attractive potential treatment option for osteopetrosis patients. We conducted comprehensive label-free quantitative proteomics analysis on Fluconazole-treated Dental Pulp Mesenchymal Stem/Stromal Cells from CA-II-Deficient Osteopetrosis Patients. We identified 251 distinct differentially expressed proteins between healthy subjects, as well as untreated and azole-treated derived cells from osteopetrosis patients. Twenty-six (26) of these proteins were closely associated with osteogenesis and osteopetrosis disease. Among them are ATP1A2, CPOX, Ap2 alpha, RAP1B and some members of the RAB protein family. Others include AnnexinA1, 5, PYGL, OSTF1 and PGAM4, all interacting with OSTM1 in the catalytic reactions of HCO3 and the Cl- channel via CAII regulation. In addition, the pro-inflammatory/osteoclast regulatory proteins RACK1, MTSE, STING1, S100A13, ECE1 and TRIM10 are involved. We have identified proteins involved in osteogenic and immune metabolic pathways, including ERK 1/2, phosphatase and ATPase, which opens the door for some CA activators to be used as an alternative drug therapy for osteopetrosis patients. These findings propose that fluconazole might be a potential treatment agent for CAII- deficient OP patients. Altogether, our findings provide a basis for further work to elucidate the clinical utility of azole, a CA activator, as a therapeutic for OP.
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Affiliation(s)
- Zikra Alkhayal
- Therapeutics & Biomarker Discovery for Clinical Applications, Cell Therapy & Immunobiology Department, King Faisal Specialist Hospital & Research Centre, P.O. Box 3354, Riyadh 11211, Saudi Arabia; (Z.S.); (A.G.)
- Department of Dentistry, King Faisal Specialist Hospital & Research Centre, P.O. Box 3354, Riyadh 11211, Saudi Arabia
| | - Zakia Shinwari
- Therapeutics & Biomarker Discovery for Clinical Applications, Cell Therapy & Immunobiology Department, King Faisal Specialist Hospital & Research Centre, P.O. Box 3354, Riyadh 11211, Saudi Arabia; (Z.S.); (A.G.)
| | - Ameera Gaafar
- Therapeutics & Biomarker Discovery for Clinical Applications, Cell Therapy & Immunobiology Department, King Faisal Specialist Hospital & Research Centre, P.O. Box 3354, Riyadh 11211, Saudi Arabia; (Z.S.); (A.G.)
| | - Ayodele Alaiya
- Therapeutics & Biomarker Discovery for Clinical Applications, Cell Therapy & Immunobiology Department, King Faisal Specialist Hospital & Research Centre, P.O. Box 3354, Riyadh 11211, Saudi Arabia; (Z.S.); (A.G.)
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Aydin H, Akocak S, Lolak N, Yumrutaş Ö, Uslu U, Bozgeyik I, Üçkardeş F, Günal S, Ceylan O. Evaluation of cytotoxic, antifungal, and larvicidal activities of different bis-sulfonamide Schiff base compounds. J Biochem Mol Toxicol 2023; 37:e23375. [PMID: 37129082 DOI: 10.1002/jbt.23375] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 08/25/2022] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Schiff bases (imines or azomethines) are versatile ligands synthesized from the condensation of amino compounds with active carbonyl groups and used for many pharmaceutical and medicinal applications. In our study, we aimed to determine the cytotoxic, antifungal and larvicidal activities of biologically potent bis-sulfonamide Schiff base derivatives that were re-synthesized by us. For this aim, 16 compounds were re-synthesized and tested for their cytotoxic, antifungal and larvicidal properties. Among this series, compounds A1B2, A1B4, A4B2, A4B3, and A4B4 were shown to have cytotoxic activity against tested cancer lung cell line (A549). The most potent antifungal activity was observed in compounds A2B1 and A2B2 against all fungi. A1B1 showed the strongest larvicidal effect at all concentrations at the 72nd h (100% mortality). These obtained results demonstrate that these type of bis-substituted compounds might be used as biologically potent pharmacophores against different types of diseases.
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Affiliation(s)
- Hasan Aydin
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Adıyaman University, Adıyaman, Türkiye
| | - Süleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Türkiye
| | - Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Türkiye
| | - Önder Yumrutaş
- Department of Medical Biology, Faculty of Medicine, Adıyaman University, Adıyaman, Türkiye
| | - Uğur Uslu
- Department of Medical Microbiology, Faculty of Medicine, Selçuk University, Konya, Türkiye
| | - Ibrahim Bozgeyik
- Department of Medical Biology, Faculty of Medicine, Adıyaman University, Adıyaman, Türkiye
| | - Fatih Üçkardeş
- Department of Biostatistics, Adıyaman University, Adıyaman, Türkiye
| | - Selami Günal
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, İnönü University, Malatya, Türkiye
| | - Onur Ceylan
- Department of Parasitology, Faculty of Veterinary Medicine, Selçuk University, Konya, Türkiye
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Lolak N, Akocak S, Durgun M, Duran HE, Necip A, Türkeş C, Işık M, Beydemir Ş. Novel bis-ureido-substituted sulfaguanidines and sulfisoxazoles as carbonic anhydrase and acetylcholinesterase inhibitors. Mol Divers 2023; 27:1735-1749. [PMID: 36136229 DOI: 10.1007/s11030-022-10527-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/09/2022] [Indexed: 10/14/2022]
Abstract
To discover alternative substances to compounds used to treat many diseases, especially treating Alzheimer's disease (AD) and Parkinson's disease targeting carbonic anhydrase (hCA) and acetylcholinesterase (AChE) enzymes, is important. For this purpose, a series of novel bis-ureido-substituted sulfaguanidine (SG1-4) and sulfisoxazole (SO1-4) derivatives were synthesized, and their inhibitory capacities were screened against hCA isoenzymes (hCA I and II) and AChE. Possible binding mechanisms of inhibitors to the active site were elucidated by in silico studies, and the results were supported by in vitro results. Moreover, the percent radical scavenging capacities of the derivatives were also evaluated. The derivatives (SG1-4 and SO1-4) were more effective against hCAs compared to standard drug acetazolamide (KI values of 98.28-439.17 nM for hCA I and II, respectively) and exhibited the highest inhibition with the KIs in the ranges of 2.54 ± 0.50-41.02 ± 7.52 nM for hCA I, 11.20 ± 2.97-67.14 ± 13.58 nM for hCA II, and 257.60 ± 27.84-442.60 ± 52.13 nM for AChE. Also, compounds SG1 and SO1 also showed ABTS radical scavenging activity at the rate of 70% and 78%, respectively. These results will contribute to the literature for the rational design and synthesis of new potent and selective inhibitors targeting hCAs and AChE with multifunctional effects such as radical scavenging as well as inhibition. This study focused on the synthesis and inhibitory effects of bis-ureido-substituted sulfaguanidine (SG1-4) and sulfisoxazole (SO1-4) derivatives against human hCA I and II isoforms and AChE. In order to test synthesized derivatives' free radical scavenging potentials were the DPPH and ABTS assays. In silico studies elucidated possible binding mechanisms of inhibitors to the active site.
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Affiliation(s)
- Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040, Adiyaman, Turkey.
| | - Süleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, 02040, Adiyaman, Turkey
| | - Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, 63290, Şanlıurfa, Turkey
| | - Hatice Esra Duran
- Department of Medical Biochemistry, Faculty of Medicine, Kafkas University, 36100, Kars, Turkey
| | - Adem Necip
- Department of Pharmacy Services, Vocational School of Health Services, Harran University, 63300, Şanlıurfa, Turkey
| | - Cüneyt Türkeş
- Department of Biochemistry, Faculty of Pharmacy, Erzincan Binali Yıldırım University, 24002, Erzincan, Turkey.
| | - Mesut Işık
- Department of Bioengineering, Faculty of Engineering, Bilecik Şeyh Edebali University, 11230, Bilecik, Turkey
| | - Şükrü Beydemir
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskişehir, Turkey
- The Rectorate of Bilecik Şeyh Edebali University, 11230, Bilecik, Turkey
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Kakakhan C, Türkeş C, Güleç Ö, Demir Y, Arslan M, Özkemahlı G, Beydemir Ş. Exploration of 1,2,3-triazole linked benzenesulfonamide derivatives as isoform selective inhibitors of human carbonic anhydrase. Bioorg Med Chem 2023; 77:117111. [PMID: 36463726 DOI: 10.1016/j.bmc.2022.117111] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/13/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022]
Abstract
A novel series of 1,2,3-triazole benzenesulfonamide substituted 1,3-dioxoisoindolin-5-carboxylate (7a-l) inhibitors of human α-carbonic anhydrase (hCA) was designed using a tail approach. The design method relies on the hybridization of a benzenesulfonamide moiety with a tail of 1,3-dioxoisoindoline-5-carboxylate and a zinc-binding group on a 1,2,3-triazole scaffold. Among the synthesized analogues, 2‑iodophenyl (7f, KI of 105.00 nM and SI of 2.98) and 2‑naphthyl (7h, KI of 32.11 nM and SI of 3.48) analogues (over off-target hCA I) and phenyl (7a, KI of 50.13 nM and SI of 2.74) and 2,6‑dimethylphenyl (7d, KI of 50.60 nM and SI of 3.35) analogues (over off-target hCA II) exhibited a remarkable selectivity for tumor isoforms hCA IX and XII, respectively. Meanwhile, analogue 7a displayed a potent inhibitory effect against the tumor-associated isoform hCA IX (KI of 18.29 nM) compared with the reference drug acetazolamide (AAZ, KI of 437.20 nM), and analogue 7h showed higher potency (KI of 9.22 nM) than AAZ (KI of 338.90 nM) against another tumor-associated isoform hCA XII. However, adding the lipophilic large naphthyl tail to the 1,3-dioxoisoindolin-5-carboxylate analogues increased both the hCA inhibitory and selective activities against the target isoform, hCA XII. Additionally, these analogues (7a-l) showed IC50 values against the human lung (A549) adenocarcinoma cancer cell line ranging from 129.71 to 352.26 μM. The results of the molecular docking study suggested that the sulfonamide moiety fits snugly into the hCAs active sites and interacts with the Zn2+ ion. At the same time, the tail extension engages in various hydrophilic and hydrophobic interactions with the nearby amino acids, which affects the potency and selectivity of the hybrids.
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Affiliation(s)
- Chnar Kakakhan
- Department of Chemistry, Faculty of Arts and Science, Sakarya University, 54187 Sakarya, Turkey
| | - Cüneyt Türkeş
- Department of Biochemistry, Faculty of Pharmacy, Erzincan Binali Yıldırım University, 24002 Erzincan, Turkey.
| | - Özcan Güleç
- Department of Chemistry, Faculty of Arts and Science, Sakarya University, 54187 Sakarya, Turkey
| | - Yeliz Demir
- Department of Pharmacy Services, Nihat Delibalta Göle Vocational High School, Ardahan University, 75700 Ardahan, Turkey
| | - Mustafa Arslan
- Department of Chemistry, Faculty of Arts and Science, Sakarya University, 54187 Sakarya, Turkey.
| | - Gizem Özkemahlı
- Department of Toxicology, Faculty of Pharmacy, Erzincan Binali Yıldırım University, 24002 Erzincan, Turkey
| | - Şükrü Beydemir
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, 26470 Eskişehir, Turkey; The Rectorate of Bilecik Şeyh Edebali University, 11230 Bilecik, Turkey
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Angeli A, Urbański LJ, Capasso C, Parkkila S, Supuran CT. Activation studies with amino acids and amines of a β-carbonic anhydrase from Mammaliicoccus (Staphylococcus) sciuri previously annotated as Staphylococcus aureus (SauBCA) carbonic anhydrase. J Enzyme Inhib Med Chem 2022; 37:2786-2792. [PMID: 36210544 PMCID: PMC9553136 DOI: 10.1080/14756366.2022.2131780] [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: 11/25/2022] Open
Abstract
A β-carbonic anhydrase (CA, EC 4.2.1.1) previously annotated to be present in the genome of Staphylococcus aureus, SauBCA, has been shown to belong to another pathogenic bacterium, Mammaliicoccus (Staphylococcus) sciuri. This enzyme, MscCA, has been investigated for its activation with a series of natural and synthetic amino acid and amines, comparing the results with those obtained for the ortholog enzyme from Escherichia coli, EcoCAβ. The best MscCA activators were D-His, L- and D-DOPA, 4-(2-aminoethyl)-morpholine and L-Asn, which showed KAs of 0.12 - 0.89 µM. The least efficient activators were D-Tyr and L-Gln (KAs of 13.9 - 28.6 µM). The enzyme was also also inhibited by anions and sulphonamides, as described earlier. Endogenous CA activators may play a role in bacterial virulence and colonisation of the host which makes this research topic of great interest.
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Affiliation(s)
- Andrea Angeli
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy
| | - Linda J Urbański
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, Napoli, Italy
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland,Fimlab Ltd, Tampere University Hospital, Tampere, Finland,CONTACT Seppo Parkkila Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; Fimlab Ltd, Tampere University Hospital, Tampere, Finland
| | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy,Claudiu T. Supuran Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
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May Sulfonamide Inhibitors of Carbonic Anhydrases from Mammaliicoccus sciuri Prevent Antimicrobial Resistance Due to Gene Transfer to Other Harmful Staphylococci? Int J Mol Sci 2022; 23:ijms232213827. [PMID: 36430304 PMCID: PMC9693918 DOI: 10.3390/ijms232213827] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/12/2022] Open
Abstract
Mammaliicoccus sciuri, previously known as Staphylococcus sciuri, is a Gram-positive bacterium involved in gene transfer phenomena that confer resistance to multiple antibiotics. These plasmid-encoded genes can be easily transferred to other pathogenic staphylococci. Because antibiotic resistance is rising, inhibiting M. sciuri proliferation may be a credible strategy for restricting antimicrobial resistance gene transfer to other pathogenic bacteria. Recently, it has been shown that blocking bacterial carbonic anhydrases (CAs, EC 4.2.1.1), metalloenzymes sustaining bacterial metabolic activities, can reduce pathogen survival and fitness. Here, the recombinant M. sciuri γ-CA (MscCAγ) has been cloned and purified, utilizing the DNA recombinant technology. Its kinetic properties for the CO2 hydration reaction, as well as the sulfonamide inhibition profile, were investigated and compared with those reported earlier for MscCAβ (previously described as SauBCA) and the two off-target human CA isoforms (hCA I and hCA II). The recombinant MscCAγ showed significant hydratase activity. Moreover, the MscCAγ sulfonamide inhibitory profile was different from that of MscCAβ, implying that a varied amino acid set typifies the catalytic pocket of the two enzymes. These differences provide additional evidence for the possibility of developing novel CA class-specific inhibitors.
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Antibacterial, Antioxidant and DNA Cleavage Activity Evaluation of Substituted Phenylureido Sulfaguanidine and Sulfamethazine Derivatives. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02654-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Poggetti V, Salerno S, Baglini E, Barresi E, Da Settimo F, Taliani S. Carbonic Anhydrase Activators for Neurodegeneration: An Overview. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082544. [PMID: 35458743 PMCID: PMC9031706 DOI: 10.3390/molecules27082544] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 11/25/2022]
Abstract
Carbonic anhydrases (CAs) are a family of ubiquitous metal enzymes catalyzing the reversible conversion of CO2 and H2O to HCO3− with the release of a proton. They play an important role in pH regulation and in the balance of body fluids and are involved in several functions such as homeostasis regulation and cellular respiration. For these reasons, they have been studied as targets for the development of agents for treating several pathologies. CA inhibitors have been used in therapy for a long time, especially as diuretics and for the treatment of glaucoma, and are being investigated for application in other pathologies including obesity, cancer, and epilepsy. On the contrary, CAs activators are still poorly studied. They are proposed to act as additional (other than histidine) proton shuttles in the rate-limiting step of the CA catalytic cycle, which is the generation of the active hydroxylated enzyme. Recent studies highlight the involvement of CAs activation in brain processes essential for the transmission of neuronal signals, suggesting CAs activation might represent a potential therapeutic approach for the treatment of Alzheimer’s disease and other conditions characterized by memory impairment and cognitive problems. Actually, some compounds able to activate CAs have been identified and proposed to potentially resolve problems related to neurodegeneration. This review reports on the primary literature regarding the potential of CA activators for treating neurodegeneration-related diseases.
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12
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Lolak N, Boga M, Sonmez GD, Tuneg M, Dogan A, Akocak S. In Silico Studies and DNA Cleavage, Antioxidant, Acetylcholinesterase, and Butyrylcholinesterase Activity Evaluation of Bis-Histamine Schiff Bases and Bis-Spinaceamine Substituted Derivatives. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02581-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Onyılmaz M, Koca M, Bonardi A, Degirmenci M, Supuran CT. Isocoumarins: a new class of selective carbonic anhydrase IX and XII inhibitors. J Enzyme Inhib Med Chem 2022; 37:743-748. [PMID: 35188025 PMCID: PMC8865125 DOI: 10.1080/14756366.2022.2041630] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Isocoumarins, isomeric to comarins which act as effective carbonic anhydrase (CA, EC 4.2.1.1) inhibitors, were investigated for the first time as inhibitors of this enzyme. A series of 3-substituted and 3,4-disubstituted isocoumarins incorporating phenylhydrazone, 1-phenyl-pyrazole and pyrazolo-substituted pyrimidine trione/thioxo-pyrimidine dione moieties were investigated for their interaction with four human (h) CA isoforms, hCA I, II, IX and XII, known to be important drug targets. hCA I and II were not inhibited by these compounds, whereas hCA IX and XII were inhibited in the low micromolar range by the less bulky derivatives. The inhibition constants ranged between 2.7–78.9 µM against hCA IX and of 1.2–66.5 µM against hCA XII. As for the coumarins, we hypothesise that the isocoumarins are hydrolysed by the esterase activity of the enzyme with formation of 2-carboxy-phenylacetic aldehydes which act as CA inhibitors. Isocoumarins represent a new class of CA inhibitors.
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Affiliation(s)
- Mehmet Onyılmaz
- Faculty of Science and Arts, Department of Chemistry, Harran University, Şanlıurfa, Turkey
| | - Murat Koca
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Turkey
| | - Alessandro Bonardi
- Department of Neurofarba, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Mustafa Degirmenci
- Faculty of Science and Arts, Department of Chemistry, Harran University, Şanlıurfa, Turkey
| | - Claudiu T. Supuran
- Department of Neurofarba, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Sesto Fiorentino, Italy
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14
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Amine- and Amino Acid-Based Compounds as Carbonic Anhydrase Activators. Molecules 2021; 26:molecules26237331. [PMID: 34885917 PMCID: PMC8659172 DOI: 10.3390/molecules26237331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 12/01/2021] [Indexed: 02/01/2023] Open
Abstract
After being rather neglected as a research field in the past, carbonic anhydrase activators (CAAs) were undoubtedly demonstrated to be useful in diverse pharmaceutical and industrial applications. They also improved the knowledge of the requirements to selectively interact with a CA isoform over the others and confirmed the catalytic mechanism of this class of compounds. Amino acid and amine derivatives were the most explored in in vitro, in vivo and crystallographic studies as CAAs. Most of them were able to activate human or non-human CA isoforms in the nanomolar range, being proposed as therapeutic and industrial tools. Some isoforms are better activated by amino acids than amines derivatives and the stereochemistry may exert a role. Finally, non-human CAs have been very recently tested for activation studies, paving the way to innovative industrial and environmental applications.
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15
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Yapar G, Esra Duran H, Lolak N, Akocak S, Türkeş C, Durgun M, Işık M, Beydemir Ş. Biological effects of bis-hydrazone compounds bearing isovanillin moiety on the aldose reductase. Bioorg Chem 2021; 117:105473. [PMID: 34768205 DOI: 10.1016/j.bioorg.2021.105473] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/02/2021] [Accepted: 11/03/2021] [Indexed: 01/17/2023]
Abstract
Aldose reductase (ALR2), one of the metabolically important enzymes, catalyzes the formation of sorbitol from glucose in the polyol pathway. ALR2 inhibition is required to prevent diabetic complications. In the present study, the novel bis-hydrazone compounds bearing isovanillin moiety (GY1-12) were synthesized, and various chromatographic methods were applied to purify the ALR2 enzyme. Afterward, the inhibitory effect of the synthesized compounds on the ALR2 was screened in vitro. All the novel bis-hydrazones demonstrated activity in nanomolar levels as AR inhibitors with IC50 and KI values in the range of 12.55-35.04 nM, and 13.38-88.21 nM, respectively. Compounds GY-11, GY-7, and GY-5 against ALR2 were identified as the highly potent inhibitors, respectively, and were superior to the standard drug, epalrestat. Moreover, a comprehensive ligand-receptor interactions prediction was performed using ADME-Tox, Glide XP, and MM-GBSA modules of Schrödinger Small-Molecule Drug Discovery Suite to elucidate the novel bis-hydrazone derivatives, potential binding modes versus the ALR2. As a result, these compounds with ALR2 inhibitory effects may be potential alternative agents that can be used to treat or prevent diabetic complications.
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Affiliation(s)
- Gönül Yapar
- Department of Chemistry, Faculty of Arts and Sciences, İstanbul Technical University, İstanbul 34469, Turkey.
| | - Hatice Esra Duran
- Department of Medical Biochemistry, Faculty of Medicine, Kafkas University, Kars 36100, Turkey
| | - Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman 02040, Turkey
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman 02040, Turkey.
| | - Cüneyt Türkeş
- Department of Biochemistry, Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan 24100, Turkey
| | - Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, Şanlıurfa 63290, Turkey
| | - Mesut Işık
- Department of Bioengineering, Faculty of Engineering, Bilecik Şeyh Edebali University, Bilecik 11230, Turkey.
| | - Şükrü Beydemir
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey; The Rectorate of Bilecik Şeyh Edebali University, Bilecik 11230, Turkey
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16
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Ghiasi M, Shahabi P, Supuran CT. Quantum mechanical study on the activation mechanism of human carbonic anhydrase VII cluster model with bis-histamine schiff bases and bis-spinaceamine derivatives. Bioorg Med Chem 2021; 44:116276. [PMID: 34225168 DOI: 10.1016/j.bmc.2021.116276] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 06/10/2021] [Accepted: 06/10/2021] [Indexed: 02/05/2023]
Abstract
The activation mechanism of human carbonic anhydrase (hCA) isoform VII, hCA VII, with histamine, histamine bis-Schiff bases and bis-spinaceamine derivatives has been investigated using quantum mechanical calculations. The DFT-D3 method has been employed to calculate in detail the electronic structure and electronic energy of different compounds and complexes throughout the reaction pathway. The model system of hCA VII included the core catalytic center, the Zn2+ ion, its three histidine ligands and a hydroxide ion or water molecule coordinated to it. Furthermore, Thr199, Glu106 and the deep water molecule were considered in the model. Five activators of this enzyme, including histamine as standard, in complex with the cluster model of hCA VII were investigated. Thermodynamic functions for the overall reaction and for the complexation between activators and hCA VII were evaluated. Our results demonstrate that the protonatable moiety of these activators participates in proton transfer reactions from the zinc-bound water molecule to the reaction medium, promoting the formation of the catalytically active zinc hydroxide species of the enzyme. The QM analysis revealed that the electrostatic interactions between activators and hCA VII are the driving force of the enzyme-activator complex formation.
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Affiliation(s)
- Mina Ghiasi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran.
| | - Parisa Shahabi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Claudiu T Supuran
- Dipartimento Neurofarba, Sezione di, Scienze Farmaceutiche e Nutraceutiche, Universita degli Studi di Firenze, Sesto Fiorentino, Italy
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17
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Nocentini A, Angeli A, Carta F, Winum JY, Zalubovskis R, Carradori S, Capasso C, Donald WA, Supuran CT. Reconsidering anion inhibitors in the general context of drug design studies of modulators of activity of the classical enzyme carbonic anhydrase. J Enzyme Inhib Med Chem 2021; 36:561-580. [PMID: 33615947 PMCID: PMC7901698 DOI: 10.1080/14756366.2021.1882453] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Inorganic anions inhibit the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1) generally by coordinating to the active site metal ion. Cyanate was reported as a non-coordinating CA inhibitor but those erroneous results were subsequently corrected by another group. We review the anion CA inhibitors (CAIs) in the more general context of drug design studies and the discovery of a large number of inhibitor classes and inhibition mechanisms, including zinc binders (sulphonamides and isosteres, dithiocabamates and isosteres, thiols, selenols, benzoxaboroles, ninhydrins, etc.); inhibitors anchoring to the zinc-coordinated water molecule (phenols, polyamines, sulfocoumarins, thioxocoumarins, catechols); CAIs occluding the entrance to the active site (coumarins and derivatives, lacosamide), as well as compounds that bind outside the active site. All these new chemotypes integrated with a general procedure for obtaining isoform-selective compounds (the tail approach) has resulted, through the guidance of rigorous X-ray crystallography experiments, in the development of highly selective CAIs for all human CA isoforms with many pharmacological applications.
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Affiliation(s)
- Alessio Nocentini
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | - Andrea Angeli
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | - Fabrizio Carta
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
| | | | - Raivis Zalubovskis
- Latvian Institute of Organic Synthesis, Riga, Latvia.,Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia
| | - Simone Carradori
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Clemente Capasso
- Institute of Biosciences and Bioresources, National Research Council, Napoli, Italy
| | - William A Donald
- School of Chemistry, University of New South Wales, Sydney, Australia
| | - Claudiu T Supuran
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Florence, Italy
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18
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Nocentini A, Cuffaro D, Ciccone L, Orlandini E, Nencetti S, Nuti E, Rossello A, Supuran CT. Activation of carbonic anhydrases from human brain by amino alcohol oxime ethers: towards human carbonic anhydrase VII selective activators. J Enzyme Inhib Med Chem 2021; 36:48-57. [PMID: 33103482 PMCID: PMC7594847 DOI: 10.1080/14756366.2020.1838501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The synthesis and carbonic anhydrase (CA; EC 4.2.1.1) activating effects of a series of oxime ether-based amino alcohols towards four human (h) CA isoforms expressed in human brain, hCA I, II, IV and VII, are described. Most investigated amino alcohol derivatives induced a consistent activation of the tested CAs, with KAs spanning from a low micromolar to a medium nanomolar range. Specifically, hCA II and VII, putative main CA targets when central nervous system (CNS) diseases are concerned, were most efficiently activated by these oxime ether derivatives. Furthermore, a multitude of selective hCA VII activators were identified. As hCA VII is one of the key isoforms involved in brain metabolism and other brain functions, the identified potent and selective hCA VII activators may be considered of interest for investigations of various therapeutic applications or as lead compounds in search of even more potent and selective CA activators.
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Affiliation(s)
- Alessio Nocentini
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health (Neurofarba), University of Florence, Sesto Fiorentino, Italy
| | | | - Lidia Ciccone
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | | | - Elisa Nuti
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | - Claudiu T Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health (Neurofarba), University of Florence, Sesto Fiorentino, Italy
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19
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Chiaramonte N, Maach S, Biliotti C, Angeli A, Bartolucci G, Braconi L, Dei S, Teodori E, Supuran CT, Romanelli MN. Synthesis and carbonic anhydrase activating properties of a series of 2-amino-imidazolines structurally related to clonidine 1. J Enzyme Inhib Med Chem 2021; 35:1003-1010. [PMID: 32336172 PMCID: PMC7241460 DOI: 10.1080/14756366.2020.1749602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The Carbonic Anhydrase (CA, EC 4.2.1.1) activating properties of histamine have been known for a long time. This compound has been extensively modified but only in few instances the imidazole ring has been replaced with other heterocycles. It was envisaged that the imidazoline ring could be a bioisoster of the imidazole moiety. Indeed, we report that clonidine, a 2-aminoimidazoline derivative, was found able to activate several human CA isoforms (hCA I, IV, VA, VII, IX, XII and XIII), with potency in the micromolar range, while it was inactive on hCA II. A series of 2-aminoimidazoline, structurally related to clonidine, was then synthesised and tested on selected hCA isoforms. The compounds were inactive on hCA II while displayed activating properties on hCA I, VA, VII and XIII, with KA values in the micromolar range. Two compounds (10 and 11) showed some preference for the hCA VA or VII isoforms.
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Affiliation(s)
- Niccolò Chiaramonte
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Soumia Maach
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Caterina Biliotti
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Andrea Angeli
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Gianluca Bartolucci
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Laura Braconi
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Silvia Dei
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Elisabetta Teodori
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Claudiu T Supuran
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
| | - Maria Novella Romanelli
- Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Sesto Fiorentino, Italy
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20
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Oguz M, Kalay E, Akocak S, Nocentini A, Lolak N, Boga M, Yilmaz M, Supuran CT. Synthesis of calix[4]azacrown substituted sulphonamides with antioxidant, acetylcholinesterase, butyrylcholinesterase, tyrosinase and carbonic anhydrase inhibitory action. J Enzyme Inhib Med Chem 2020; 35:1215-1223. [PMID: 32401067 PMCID: PMC7269057 DOI: 10.1080/14756366.2020.1765166] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 02/07/2023] Open
Abstract
A series of novel calix[4]azacrown substituted sulphonamide Schiff bases was synthesised by the reaction of calix[4]azacrown aldehydes with different substituted primary and secondary sulphonamides. The obtained novel compounds were investigated as inhibitors of six human (h) isoforms of carbonic anhydrases (CA, EC 4.2.1.1). Their antioxidant profile was assayed by various bioanalytical methods. The calix[4]azacrown substituted sulphonamide Schiff bases were also investigated as inhibitors of acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and tyrosinase enzymes, associated with several diseases such as Alzheimer, Parkinson, and pigmentation disorders. The new sulphonamides showed low to moderate inhibition against hCAs, AChE, BChE, and tyrosinase enzymes. However, some of them possessed relevant antioxidant activity, comparable with standard antioxidants used in the study.
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Affiliation(s)
- Mehmet Oguz
- Department of Chemistry, University of Selcuk, Konya, Turkey
- Department of Advanced Material and Nanotechnology, Selcuk University, Konya, Turkey
| | - Erbay Kalay
- Kars Vocational School, Kafkas University, Kars, Turkey
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Alessio Nocentini
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Florence, Italy
| | - Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Mehmet Boga
- Department of Analytical Chemistry, Faculty of Pharmacy, Dicle University, Diyarbakir, Turkey
| | - Mustafa Yilmaz
- Department of Chemistry, University of Selcuk, Konya, Turkey
| | - Claudiu T. Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Florence, Italy
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