1
|
Xiao-Qun Z, Xian-Li M, Ariffin NS. The potential of carbonic anhydrase enzymes as a novel target for anti-cancer treatment. Eur J Pharmacol 2024; 976:176677. [PMID: 38825301 DOI: 10.1016/j.ejphar.2024.176677] [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: 12/29/2023] [Revised: 05/15/2024] [Accepted: 05/27/2024] [Indexed: 06/04/2024]
Abstract
Carbonic anhydrase (CA) is a zinc-dependent metal enzyme that maintains the pH and carbon dioxide (CO2) homeostasis in cells by catalyzing the reversible hydration and dehydration of CO2 and bicarbonate (HCO3-). In mammals, there are 16 isozymes of CA existed, namely CAI to CAXIV, but only 15 isozymes are found in humans except CAXV. Human CAs have highly conserved catalytic domains, all of which are distributed in different tissues and play important physiological roles. Changes in their functions may disrupt the typical distribution of CAs throughout human body and therefore CAs can be used as diagnostic biomarkers for many diseases. Furthermore, the expression of CAs is correlated to the progression of numerous tumors, therapeutic sensitivity and patient prognosis. In this review, we discuss thoroughly the structure of CAs, their functional activities in human physiology, dysregulations and diseases related to CAs, and different types of CA inhibitors that can reverse their dysregulation.
Collapse
Affiliation(s)
- Zhou Xiao-Qun
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, 42300, Bandar Puncak Alam, Selangor, Malaysia; Guilin Medical University, GuiLin, China
| | | | - Nur Syamimi Ariffin
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, 42300, Bandar Puncak Alam, Selangor, Malaysia.
| |
Collapse
|
2
|
Chander, Monika, Sharma PK, Ram S. Recent advances in triazole-benzenesulfonamide hybrids and their biological activities. Med Chem Res 2023. [DOI: 10.1007/s00044-023-03052-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
|
3
|
Shah M, Khan F, Ullah S, Mohanta TK, Khan A, Zainab R, Rafiq N, Ara H, Alam T, Rehman NU, Al-Harrasi A. GC-MS Profiling and Biomedical Applications of Essential Oil of Euphorbia larica Boiss.: A New Report. Antioxidants (Basel) 2023; 12:antiox12030662. [PMID: 36978910 PMCID: PMC10045896 DOI: 10.3390/antiox12030662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/19/2023] [Accepted: 03/01/2023] [Indexed: 03/10/2023] Open
Abstract
The present study explored Euphorbia larica essential oil (ELEO) constituents for the first time, obtained via hydro-distillation by means of Gas Chromatography-Mass Spectrometry (GC-MS) profiling. The essential oil was screened in vitro against breast cancer cells, normal cell lines, α-glucosidase, carbonic anhydrase-II (CA-II), free radical scavenging and in vivo analgesic and anti-inflammatory capabilities. The GC-MS screening revealed that the ELEO comprises sixty compounds (95.25%) with the dominant constituents being camphene (16.41%), thunbergol (15.33%), limonene (4.29%), eremophilene (3.77%), and β-eudesmol (3.51%). A promising antidiabetic capacity was noticed with an IC50 of 9.63 ± 0.22 μg/mL by the ELEO as equated to acarbose with an IC50 = 377.71 ± 1.34 μg/mL, while a 162.82 ± 1.24 μg/mL inhibition was observed against CA-II. Regarding breast cancer, the ELEO offered considerable cytotoxic capabilities against the triple-negative breast cancer (MDA-MB-231) cell lines, having an IC50 = 183.8 ± 1.6 μg/mL. Furthermore, the ELEO was also tested with the human breast epithelial (MCF-10A) cell line, and the findings also presumed that the ELEO did not produce any damage to the tested normal cell lines. The ELEO was effective against the Gram-positive bacteria and offered a 19.8 ± 0.02 mm zone of inhibition (ZOI) against B. atrophaeus. At the same time, the maximum resistance with 18.03 ± 0.01 mm ZOI against the fungal strain Aspergillus parasiticus was observed among the tested fungal strains. An appreciable free radical significance was observed via the DPPH assay with an IC50 = 133.53 ± 0.19 µg/mL as equated to the ABTS assay having an IC50 = 154.93 ± 0.17 µg/mL. The ELEO also offered a substantial analgesic capacity and produced 58.33% inhibition in comparison with aspirin, a 68.47% decrease in writhes, and an anti-inflammatory capability of 65.54% inhibition, as equated to the standard diclofenac sodium having 73.64% inhibition. Hence, it was concluded that the ELEO might be a natural source for the treatment of diabetes mellitus, breast cancer, analgesic, inflammatory, and antimicrobial-related diseases. Moreover, additional phytochemical and pharmacological studies are needed to isolate responsible chemical ingredients to formulate new drugs for the examined activities.
Collapse
Affiliation(s)
- Muddaser Shah
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
- Department of Botany, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Faizullah Khan
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Saeed Ullah
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
| | - Tapan Kumar Mohanta
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
| | - Rimsha Zainab
- Department of Botany, Women University Swabi, Swabi 23430, Pakistan
| | - Naseem Rafiq
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Hussan Ara
- Department of Botany, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Tanveer Alam
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
| | - Najeeb Ur Rehman
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
- Correspondence: (N.U.R.); (A.A.-H.)
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
- Correspondence: (N.U.R.); (A.A.-H.)
| |
Collapse
|
4
|
Aggul AG, Uzun N, Kuzu M, Taslimi P, Gulcin I. Some phenolic natural compounds as carbonic anhydrase inhibitors: An in vitro and in silico study. Arch Pharm (Weinheim) 2022; 355:e2100476. [DOI: 10.1002/ardp.202100476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 11/06/2022]
Affiliation(s)
| | - Naim Uzun
- Department of Biochemistry Agri Ibrahim Cecen University Agri Turkey
| | - Muslum Kuzu
- Department of Nutrition and Dietetics Karabuk University Karabuk Turkey
| | - Parham Taslimi
- Department of Biotechnology Bartin University Bartin Turkey
| | - Ilhami Gulcin
- Department of Chemistry Ataturk University Erzurum Turkey
| |
Collapse
|
5
|
Younus M, Mohtasheem-ul-Hasan M, Ijaz S, Kamran M, Maqsood A, Saddique B, Nisar U, Ashraf M, Mahmoud EA, El-Sabrout AM, Elansary HO. Investigation of Euphorbia nivulia-HAM for Enzyme Inhibition Potential in Relation to the Phenolic and Flavonoid Contents and Radical Scavenging Activity. Life (Basel) 2022; 12:life12020321. [PMID: 35207608 PMCID: PMC8875530 DOI: 10.3390/life12020321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 11/17/2022] Open
Abstract
Euphorbia nivulia-Ham (EN) is a neglected medicinal plant traditionally used for a number of pathologies, but it has not been explored scientifically. In the current study, its various fractions were assessed for their phenolic and flavonoid content, radical scavenging, as well as its enzyme inhibitory potential. The hydro-alcoholic crude extract (ENCr) was subjected to a fractionation scheme to obtain different fractions, namely n-hexane (ENHF), chloroform (ENCF), n-butanol (ENBF), and aqueous fraction (ENAF). The obtained results revealed that the highest phenolic and flavonoid content, maximum radical scavenging potential (91 ± 0.55%), urease inhibition (54.36 ± 1.47%), and α-glucosidase inhibition (97.84 ± 1.87%) were exhibited by ENCr, while the ENBF fraction exhibited the highest acetylcholinestrase inhibition (57.32 ± 0.43%). Contrary to these, hydro-alcoholic crude as well as the other fractions showed no significant butyrylcholinestrases (BChE) and carbonic anhydrase inhibition activity. Conclusively, it was found that EN possesses a significant radical scavenging and enzyme inhibitory potential. Thus, the study may be regarded a step forward towards evidence-based phyto-medicine.
Collapse
Affiliation(s)
- Muhammad Younus
- Department of Pharmacognosy, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
- Department of Pharmacognosy, Faculty of Pharmacy, University of Karachi, Sindh 75270, Pakistan;
| | | | - Shakeel Ijaz
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, The University of Dublin, D02 PN40 Dublin, Ireland
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
- Correspondence: (S.I.); (M.K.); (H.O.E.)
| | - Muhammad Kamran
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide 5005, Australia
- Correspondence: (S.I.); (M.K.); (H.O.E.)
| | - Ambreen Maqsood
- Faculty of Agriculture, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (A.M.); (B.S.)
| | - Bushra Saddique
- Faculty of Agriculture, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; (A.M.); (B.S.)
| | - Uzair Nisar
- Department of Pharmacology, Faculty of Pharmacy, Ziauddin University, Karachi 75600, Pakistan;
| | - Muhammad Ashraf
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Eman A. Mahmoud
- Department of Food Industries, Faculty of Agriculture, Damietta University, Damietta 34511, Egypt;
| | - Ahmed M. El-Sabrout
- Department of Applied Entomology and Zoology, Faculty of Agriculture (EL-Shatby), Alexandria University, Alexandria 21545, Egypt;
| | - Hosam O. Elansary
- Plant Production Department, College of Food & Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
- Correspondence: (S.I.); (M.K.); (H.O.E.)
| |
Collapse
|
6
|
QM and QM/MM study on inhibition mechanism of polyphenolic compounds as non-classical inhibitors of α-human carbonic anhydrase (II). Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02839-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
7
|
Potential anticancer activities of Rhus coriaria (sumac) extract against human cancer cell lines. Biosci Rep 2021; 41:228452. [PMID: 33891003 PMCID: PMC8112848 DOI: 10.1042/bsr20204384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 12/27/2022] Open
Abstract
Therapeutic strategies of plant origin are a better choice as both dietary plant products or its isolated active constituents against the development and progression of cancer. The present study aims to evaluate the anticancer activity of sumac (Rhus coriaria) against different human cancer MCF-7, PC-3, and SKOV3 cell lines. In addition, the study tries to explore a prospective mechanism of action, assessment of in vitro enzyme-inhibitory capacity of sumac extract against hCA I, II, IX, and XII. In the present study, the potential antitumor effects of sumac (Rhus coriaria) were explored in the human cancer cell lines; MCF-7, PC-3, and SKOV3 using in vitro assays. Apoptotic, cell survival, ELISA immunoassays were also conducted to reveal the inhibitory effects of sumac extract against hCA I, II, IX, and XII. In addition, both Clioquinol and Acetazolamide (AZM) were used as standards to explore the in vitro enzyme-inhibitory capacity of sumac extract against hCA I, II, IX, and XII. The hydro-alcoholic extract of R. coriaria (Sumac) was subjected to phytochemical analysis using GC/MS assays. Sumac at non-cytotoxic doses of 50 and 100 µM significantly modulates the growth of the MCF-7, PC-3, and SKOV3 cancer cells with a higher inhibitory effect and selectivity to carbonic anhydrase (CA) isoforms; hCA I, II, hCA IX, and XII. The data showed that sumac at doses of 50 and 100 µM significantly inhibited the growth, proliferation, and viability of cancer cells by activating the apoptotic process via caspase-3 overexpression and the regulation of Bcl-2 anti-apoptotic protein.
Collapse
|
8
|
Chanda J, Mukherjee PK, Biswas R, Biswas S, Tiwari AK, Pargaonkar A. UPLC-QTOF-MS analysis of a carbonic anhydrase-inhibiting extract and fractions of Luffa acutangula (L.) Roxb (ridge gourd). PHYTOCHEMICAL ANALYSIS : PCA 2019; 30:148-155. [PMID: 30402952 DOI: 10.1002/pca.2800] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Luffa acutangula (L.) Roxb, commonly known as ridge gourd (cucurbitaceae), is a common vegetable cultivated in India. It is also a well-used medicinal plant in Indian traditional medicine. OBJECTIVES To analyse the phenolics content of the most potent carbonic anhydrase-inhibiting fraction from an extract of L. acutangula. MATERIALS AND METHODS An aqueous ethanol extract of dried fruits of L. acutangula was successively fractionated into petroleum ether, dichloromethane and ethyl acetate. The extract and subsequent fractions were assessed for carbonic anhydrase-inhibitory activity and the enzyme inhibition kinetics were determined for the most active fraction. Total phenolic and flavonoid content of the extract and subsequent fractions were determined spectrophotometrically. Ultra-performance liquid chromatography-quadrupole/time-of-flight mass spectrometry (UPLC-QTOF-MS) analysis was used to tentatively identify the major phenolics in the most active fraction. RESULTS The concentration of total phenolics and total flavonoids in the extract and each fraction thereof correlated with the level of carbonic anhydrase inhibition activity. The ethyl acetate fraction of the aqueous ethanol extract of L. acutangula had the highest carbonic anhydrase inhibition activity. The enzyme kinetics analysis indicated a mixed mode of inhibition. UPLC-QTOF-MS analysis of the ethyl acetate fraction indicated a number of phenolic acids, hydroxycoumarins, flavones, flavanones, and flavonoids. CONCLUSION The correlation of total phenolic content with carbonic anhydrase inhibition suggested further research that might confirm that phenolic compounds of L. acutangula offer potential therapeutic benefits against carbonic anhydrase-related disorders.
Collapse
Affiliation(s)
- Joydeb Chanda
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Pulok K Mukherjee
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Rajarshi Biswas
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Sayan Biswas
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Amrendra Kumar Tiwari
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | | |
Collapse
|
9
|
Pita-Calvo C, Vázquez M. Honeydew Honeys: A Review on the Characterization and Authentication of Botanical and Geographical Origins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:2523-2537. [PMID: 29462557 DOI: 10.1021/acs.jafc.7b05807] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The commercial interest in honeydew honeys (from the secretions of plants or the excretions of plant-sucking insects found on plants) is increasing because of their higher therapeutic properties compared with those of most blossom honeys (from nectar). However, honeydew honeys have been less studied than blossom honeys. In this work, studies carried out to characterize and authenticate honeydew honeys by their botanical and geographical origins have been reviewed. The identification of honey origins has been approached by two ways: by the analysis of chemical markers and by the development of analytical methodologies combined with multivariate analyses. Some compounds have been suggested as specific botanical markers of several honeydew honeys, such as quercitol and trans-oak lactone for oak honey, 2-aminoacetophenone and propylanisol for holm oak honey, and 1-chloro-octane and tridecane for pine honey. The presence of 3-carene and an unidentified compound in samples was proposed as a way discriminate between Greek and Turkish pine honeys. Chemometric analyses have been applied on chemical compositions and on physicochemical, microscopic, and spectral parameters and have proved to be valuable methods for authenticating honeydew honeys. Analytical methods based on spectral information are suitable for the routine control of honeydew-honey origins because they are fast and require easy sample preparations.
Collapse
Affiliation(s)
- Consuelo Pita-Calvo
- Department of Analytical Chemistry, Faculty of Veterinary Science , University of Santiago de Compostela , 27002 Lugo , Spain
| | - Manuel Vázquez
- Department of Analytical Chemistry, Faculty of Veterinary Science , University of Santiago de Compostela , 27002 Lugo , Spain
| |
Collapse
|
10
|
Ramya PVS, Angapelly S, Angeli A, Digwal CS, Arifuddin M, Babu BN, Supuran CT, Kamal A. Discovery of curcumin inspired sulfonamide derivatives as a new class of carbonic anhydrase isoforms I, II, IX, and XII inhibitors. J Enzyme Inhib Med Chem 2017; 32:1274-1281. [PMID: 28965419 PMCID: PMC6010064 DOI: 10.1080/14756366.2017.1380638] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
A series of curcumin inspired sulfonamide derivatives was prepared from various chalcones and 4-sulfamoyl benzaldehyde via Claisen-Schmidt condensation. All new compounds were assayed as inhibitors of four human isoforms of the metalloenzyme carbonic anhydrase (hCA, EC 4.2.1.1) isoforms hCA I, II, IX and XII. Interesting inhibitory activities were observed against all these isoforms. hCA I, an isoform involved in several eye diseases was inhibited moderately with KIs in the range of 191.8-904.2 nM, hCA II, an antiglaucoma drug target was highly inhibited by the new sulfonamides, with KIs in the range of 0.75-8.8 nM. hCA IX, a tumor-associated isoform involved in cancer progression and metastatic spread was potently inhibited by the new sulfonamides, with KIs in the range of 2.3-87.3 nM, whereas hCA XII, and antiglaucoma and anticancer drug target, was inhibited with KIs in the range of 6.1-71.8 nM. It is noteworthy that one of the new compounds, 5d, was found to be almost 9 times more selective against hCA II (KI = 0.89 nM) over hCA IX and hCA XII, whereas 5e was 3 and 70 times more selective against hCA II (KI = 0.75 nM) over hCA IX and hCA XII, respectively.
Collapse
Affiliation(s)
- P V Sri Ramya
- a Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad , India
| | - Srinivas Angapelly
- a Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad , India
| | - Andrea Angeli
- b NEUROFARBA Department , Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche , Florence , Italy
| | - Chander Singh Digwal
- a Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad , India
| | - Mohammed Arifuddin
- a Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad , India
| | - Bathini Nagendra Babu
- a Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad , India
| | - Claudiu T Supuran
- b NEUROFARBA Department , Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche , Florence , Italy
| | - Ahmed Kamal
- a Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad , India
| |
Collapse
|
11
|
Rauf A, Raza M, Saleem M, Ozgen U, Karaoglan ES, Renda G, Palaska E, Orhan IE. Carbonic Anhydrase and Urease Inhibitory Potential of Various Plant Phenolics Using in vitro and in silico Methods. Chem Biodivers 2017; 14. [PMID: 28207990 DOI: 10.1002/cbdv.201700024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 02/13/2017] [Indexed: 11/06/2022]
Abstract
Plant phenolics are known to display many pharmacological activities. In the current study, eight phenolic compounds, e.g., luteolin 5-O-β-glucoside (1), methyl rosmarinate (2), apigenin (3), vicenin 2 (4), lithospermic acid (5), soyasaponin II (6), rubiadin 3-O-β-primeveroside (7), and 4-(β-d-glucopyranosyloxy)benzyl 3,4-dihydroxybenzoate (8), isolated from various plant species were tested at 0.2 mm against carbonic anhydrase-II (CA-II) and urease using microtiter assays. Urease inhibition rate for compounds 1 - 8 ranged between 5.0 - 41.7%, while only compounds 1, 2, and 4 showed a considerable inhibition over 50% against CA-II with the IC50 values of 73.5 ± 1.05, 39.5 ± 1.14, and 104.5 ± 2.50 μm, respectively, where IC50 of the reference (acetazolamide) was 21.0 ± 0.12 μm. In silico experiments were also performed through two docking softwares (Autodock Vina and i-GEMDOCK) in order to find out interactions between the compounds and CA-II. Actually, compounds 6 (30.0%) and 7 (42.0%) possessed a better binding capability toward the active site of CA-II. According to our results obtained in this study, among the phenolic compounds screened, particularly 1, 2, and 4 appear to be the promising inhibitors of CA-II and may be further investigated as possible leads for diuretic, anti-glaucoma, and antiepileptic agents.
Collapse
Affiliation(s)
- Abdur Rauf
- Department of Chemistry, University of Swabi, Anbar, Khyber Pakhtunkhwa, 23561, Pakistan
| | - Muslim Raza
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring, Chao Yang District, Beijing, 100029, P. R. China
| | - Muhammad Saleem
- Department of Chemistry, University of Education Lahore, Campus Dera Ghazi Khan, 32200, Punjab, Pakistan
| | - Ufuk Ozgen
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Esen Sezen Karaoglan
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Atatürk University, 25240, Erzurum, Turkey
| | - Gulin Renda
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Erhan Palaska
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, 06100, Ankara, Turkey
| | - Ilkay Erdogan Orhan
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| |
Collapse
|
12
|
Karioti A, Carta F, Supuran CT. Phenols and Polyphenols as Carbonic Anhydrase Inhibitors. Molecules 2016; 21:molecules21121649. [PMID: 27918439 PMCID: PMC6273245 DOI: 10.3390/molecules21121649] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 11/26/2016] [Accepted: 11/28/2016] [Indexed: 01/26/2023] Open
Abstract
Phenols are among the largest and most widely distributed groups of secondary metabolites within the plant kingdom. They are implicated in multiple and essential physiological functions. In humans they play an important role as microconstituents of the daily diet, their consumption being considered healthy. The physical and chemical properties of phenolic compounds make these molecules versatile ligands, capable of interacting with a wide range of targets, such as the Carbonic Anhydrases (CAs, EC 4.2.1.1). CAs reversibly catalyze the fundamental reaction of CO2 hydration to bicarbonate and protons in all living organisms, being actively involved in the regulation of a plethora of patho/physiological processes. This review will discuss the most recent advances in the search of naturally occurring phenols and their synthetic derivatives that inhibit the CAs and their mechanisms of action at molecular level. Plant extracts or mixtures are not considered in the present review.
Collapse
Affiliation(s)
- Anastasia Karioti
- Laboratory of Pharmacognosy, School of Pharmacy, Aristotle University of Thessaloniki, University Campus, Thessaloniki 54124, Greece.
| | - Fabrizio Carta
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via U. Schiff 6, I-50019 Sesto Fiorentino (Firenze), Italy.
| | - Claudiu T Supuran
- Neurofarba Department, Sezione di Chimica Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via U. Schiff 6, I-50019 Sesto Fiorentino (Firenze), Italy.
| |
Collapse
|
13
|
Kolayli S, Can Z, Yildiz O, Sahin H, Karaoglu SA. A comparative study of the antihyaluronidase, antiurease, antioxidant, antimicrobial and physicochemical properties of different unifloral degrees of chestnut (Castanea sativa Mill.) honeys. J Enzyme Inhib Med Chem 2016; 31:96-104. [PMID: 27440492 DOI: 10.1080/14756366.2016.1209494] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
This study was planned to investigate some physicochemical and anti-inflammatory, antioxidant, antimicrobial properties of three different degrees of unifloral characters of chestnut honeys. Antihyaluronidase, antiurease and antimicrobial activities were evaluated as anti-inflammatory characteristics. Total phenolic contents, flavonoids, tannins, phenolic profiles, ferric-reducing antioxidant power (FRAP), scavenging activities of 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS+) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals were evaluated as antioxidant properties. Color, optical rotation, conductivity, moisture, pH and ash content were evaluated as physicochemical parameters, and some sugars content, prolin, diastase, HMF and minerals (Na, K, Ca, P, Fe, Cu and Zn) were evaluated as chemical and biochemical parameters. All studied physicochemical and biological active properties were changed in line with the unifloral character of the chestnut honeys. A higher unifloral character was found associated with greater apitherapeutic capacity of the honey, as well as biological active compounds.
Collapse
Affiliation(s)
- Sevgi Kolayli
- a Department of Chemistry , Faculty of Sciences, Karadeniz Technical University , Trabzon , Turkey
| | - Zehra Can
- b Şebinkarahisar Technical Sciences Vocational School, Giresun University , Giresun , Turkey
| | - Oktay Yildiz
- c Maçka Vocational School, Karadeniz Technical University , Maçka, Trabzon , Turkey
| | - Huseyin Sahin
- d Espiye Vocational School, Giresun University , Espiye , Giresun , Turkey , and
| | - Sengul Alpay Karaoglu
- e Department of Biology , Faculty of Arts and Sciences, RTE University , Rize , Turkey
| |
Collapse
|
14
|
Baltas N, Karaoglu SA, Tarakci C, Kolayli S. Effect of propolis in gastric disorders: inhibition studies on the growth of Helicobacter pylori and production of its urease. J Enzyme Inhib Med Chem 2016; 31:46-50. [PMID: 27233102 DOI: 10.1080/14756366.2016.1186023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
There is considerable interest in alternative approaches to inhibit Helicobacter pylori (H. pylori) and thus treat many stomach diseases. Propolis is a pharmaceutical mixture containing many natural bioactive substances. The aim of this study was to use propolis samples to treat H. pylori. The anti-H. pylori and anti-urease activities of 15 different ethanolic propolis extracts (EPEs) were tested. The total phenolic contents and total flavonoid contents of the EPE were also measured. The agar-well diffusion assay was carried out on H. pylori strain J99 and the inhibition zones were measured and compared with standards. All propolis extracts showed high inhibition of H. pylori J99, with inhibition diameters ranging from 31.0 to 47.0 mm. Helicobacter pylori urease inhibitory activity was measured using the phenol-hypochlorite assay; all EPEs showed significant inhibition against the enzyme, with inhibition concentrations (IC50; mg/mL) ranging from 0.260 to 1.525 mg/mL. The degree of inhibition was related to the phenolic content of the EPE. In conclusion, propolis extract was found to be a good inhibitor that can be used in H. pylori treatment to improve human health.
Collapse
Affiliation(s)
| | - Sengul Alpay Karaoglu
- b Department of Biology , Faculty of Arts and Science, Recep Tayyip Erdogan University , Rize , Turkey , and
| | - Cemre Tarakci
- b Department of Biology , Faculty of Arts and Science, Recep Tayyip Erdogan University , Rize , Turkey , and
| | - Sevgi Kolayli
- c Department of Chemistry , Faculty of Science, Karadeniz Technical University , Trabzon , Turkey
| |
Collapse
|
15
|
Baltas N, Yildiz O, Kolayli S. Inhibition properties of propolis extracts to some clinically important enzymes. J Enzyme Inhib Med Chem 2016; 31:52-55. [DOI: 10.3109/14756366.2016.1167049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Nimet Baltas
- Department of Chemistry, Faculty of Arts & Science, Recep Tayyip Erdogan University, Rize, Turkey,
| | - Oktay Yildiz
- Maçka Vocational School, Karadeniz Thecnical University, Trabzon, Turkey, and
| | - Sevgi Kolayli
- Department of Chemistry, Faculty of Science, Karadeniz Thecnical University, Trabzon, Turkey
| |
Collapse
|
16
|
Saral Ö, Yildiz O, Aliyazicioğlu R, Yuluğ E, Canpolat S, Öztürk F, Kolayli S. Apitherapy products enhance the recovery of CCL4-induced hepatic damages in rats. Turk J Med Sci 2016; 46:194-202. [PMID: 27511354 DOI: 10.3906/sag-1411-35] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 04/22/2015] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND/AIM Our objective was to identify the antioxidant properties of honeybee products from Turkey, chestnut honey, pollen, propolis, and royal jelly, and their hepatoprotective activity against CCl4-induced hepatic damage in rats. MATERIALS AND METHODS Animals were fed with honeybee products for 7 days following CCl4 injection. Development of liver damage and oxidative stress were monitored by measuring the activities of the enzymes alanine transaminase, aspartate transaminase, malondialdehyde, superoxide dismutase, and catalase. Antioxidant capacities of the bee products were identified using FRAP and DPPH assays, as well as by measuring total phenolic and flavonoid contents. RESULTS The antioxidant activities of the honeybee products were highest in propolis, followed, in order, by pollen, honey, and royal jelly. Despite their different levels of antioxidant capacity, their roles in the prevention of liver damage induced by CCl4 were very similar, which can be explained through their bioavailability to the treated animals. CONCLUSIONS Our results suggest that honey, propolis, pollen, and royal jelly significantly enhanced the healing of CCl4-induced liver damage, partially due to their antioxidant properties and bioavailability.
Collapse
Affiliation(s)
- Özlem Saral
- Department of Nutrition and Dietetics, College of Health, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Oktay Yildiz
- Maçka Vocational School, Karadeniz Technical University, Trabzon, Turkey
| | | | - Esin Yuluğ
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Sinan Canpolat
- Department of Physiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Ferhat Öztürk
- Department of Molecular Biology and Genetics, Faculty of Sciences, Canik Başarı University, Samsun, Turkey
| | - Sevgi Kolayli
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
| |
Collapse
|
17
|
Abstract
Six genetic families of the enzyme carbonic anhydrase (CA, EC 4.2.1.1) were described to date. Inhibition of CAs has pharmacologic applications in the field of antiglaucoma, anticonvulsant, anticancer, and anti-infective agents. New classes of CA inhibitors (CAIs) were described in the last decade with enzyme inhibition mechanisms differing considerably from the classical inhibitors of the sulfonamide or anion type. Five different CA inhibition mechanisms are known: (i) the zinc binders coordinate to the catalytically crucial Zn(II) ion from the enzyme active site, with the metal in tetrahedral or trigonal bipyramidal geometries. Sulfonamides and their isosters, most anions, dithiocarbamates and their isosters, carboxylates, and hydroxamates bind in this way; (ii) inhibitors that anchor to the zinc-coordinated water molecule/hydroxide ion (phenols, carboxylates, polyamines, 2-thioxocoumarins, sulfocoumarins); (iii) inhibitors which occlude the entrance to the active site cavity (coumarins and their isosters), this binding site coinciding with that where CA activators bind; (iv) compounds which bind out of the active site cavity (a carboxylic acid derivative was seen to inhibit CA in this manner), and (v) compounds for which the inhibition mechanism is not known, among which the secondary/tertiary sulfonamides as well as imatinib/nilotinib are the most investigated examples. As CAIs are used clinically in many pathologies, with a sulfonamide inhibitor (SLC-0111) in Phase I clinical trials for the management of metastatic solid tumors, this review updates the recent findings in the field which may be useful for a structure-based drug design approach of more selective/potent modulators of the activity of these enzymes.
Collapse
Affiliation(s)
- Claudiu T Supuran
- a Neurofarba Department, Laboratorio Di Chimica Bioinorganica, Sezione Di Chimica Farmaceutica E Nutraceutica, Università Degli Studi Di Firenze , Florence , Italy
| |
Collapse
|
18
|
Diaz JRA, Camí GE, Liu-González M, Vega DR, Vullo D, Juárez A, Pedregosa JC, Supuran CT. Salts of 5-amino-2-sulfonamide-1,3,4-thiadiazole, a structural and analog of acetazolamide, show interesting carbonic anhydrase inhibitory properties, diuretic, and anticonvulsant action. J Enzyme Inhib Med Chem 2015; 31:1102-10. [DOI: 10.3109/14756366.2015.1096270] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Jorge R. A. Diaz
- Área De Química General E Inorgánica, Facultad De Química, Bioquímica Y Farmacia, CONICET PIP-6246, Universidad Nacional De San Luis, San Luis, Argentina,
| | - Gerardo Enrique Camí
- Área De Química General E Inorgánica, Facultad De Química, Bioquímica Y Farmacia, CONICET PIP-6246, Universidad Nacional De San Luis, San Luis, Argentina,
| | - Malva Liu-González
- S.C.S.I.E. (Unidad De Rx) – Facultad De Física, Universidad De Valencia, Valencia, Spain,
| | - Daniel R. Vega
- Grupo Materia Condensada, GIyA, GAIyANN, Comisión Nacional De Energía Atómica, San Martín, Buenos Aires, Argentina,
| | - Daniela Vullo
- Department of Neurofarba, University of Florence, Sesto Fiorentino (Firenze), Italy, and
| | - Américo Juárez
- Laboratorio De Farmacología, Departamento De Farmacia, Facultad De Química, Bioquímica Y Farmacia, Universidad Nacional De San Luis, San Luis, Argentina
| | - José C. Pedregosa
- Área De Química General E Inorgánica, Facultad De Química, Bioquímica Y Farmacia, CONICET PIP-6246, Universidad Nacional De San Luis, San Luis, Argentina,
| | - Claudiu T. Supuran
- Department of Neurofarba, University of Florence, Sesto Fiorentino (Firenze), Italy, and
| |
Collapse
|
19
|
Kolayli S, Sahin H, Can Z, Yildiz O, Sahin K. Honey shows potent inhibitory activity against the bovine testes hyaluronidase. J Enzyme Inhib Med Chem 2015; 31:599-602. [PMID: 26076195 DOI: 10.3109/14756366.2015.1054819] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The purpose of this study was to investigate the anti-hyaluronidase activities of honeys from different botanical origins honeys in order to determine their anti-inflammatory properties. The total phenolic contents, total flavonoids and total tannin levels of six types of honey, chestnut, oak, heather, pine, buckwheat and mixed blossom, were determined. Concentration-related inhibition values were tested turbidimetrically on bovine testis hyaluronidase (BTHase) as IC50 (mg/mL). All honeys exhibited various concentration-dependent degrees of inhibition against BTHase. Inhibition values varied significantly depending on honeys' levels of phenolic contents, flavonoid and tannin. The honeys with the highest anti-hyaluronidase activity were oak, chestnut and heather. In conclusion, polyphenol-rich honeys have high anti-hyaluronidase activity, and these honeys have high protective and complementary potential against hyaluronidase-induced anti-inflammatory failures.
Collapse
Affiliation(s)
- Sevgi Kolayli
- a Department of Chemistry, Faculty of Science , Karadeniz Technical University , Trabzon , Turkey
| | - Huseyin Sahin
- b Espiye Vocational School, Giresun University , Espiye , Giresun , Turkey
| | - Zehra Can
- c Şebinkarahisar Technical Sciences Vocational School, Giresun University , Giresun , Turkey , and
| | - Oktay Yildiz
- d Maçka Vocational School, Karadeniz Technical University , Maçka , Trabzon , Turkey
| | - Kübra Sahin
- a Department of Chemistry, Faculty of Science , Karadeniz Technical University , Trabzon , Turkey
| |
Collapse
|
20
|
Sahin H. Honey as an apitherapic product: its inhibitory effect on urease and xanthine oxidase. J Enzyme Inhib Med Chem 2015; 31:490-4. [PMID: 25942364 DOI: 10.3109/14756366.2015.1039532] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to evaluate new natural inhibitor sources for the enzymes urease and xanthine oxidase (XO). Chestnut, oak and polyfloral honey extracts were used to determine inhibition effects of both enzymes. In addition to investigate inhibition, the antioxidant capacities of these honeys were determined using total phenolic content (TPC), ferric reducing antioxidant power (FRAP), and DPPH radical scavenging activity assays. Due to their high phenolic content, chestnut and oak honeys are found to be a powerful source for inhibition of both enzymes. Especially, oak honeys were efficient for urease inhibition with 0.012-0.021 g/mL IC50 values, and also chestnut honeys were powerful for XO inhibition with 0.028-0.039 g/mL IC50 values. Regular daily consumption of these honeys can prevent gastric ulcers deriving from Helicobacter pylori and pathological disorders mediated by reactive oxygen species.
Collapse
Affiliation(s)
- Huseyin Sahin
- a Giresun University, Espiye Vocational School , Espiye , Giresun , Turkey
| |
Collapse
|
21
|
Abdel-Aziz AAM, El-Azab AS, Ceruso M, Supuran CT. Carbonic anhydrase inhibitory activity of sulfonamides and carboxylic acids incorporating cyclic imide scaffolds. Bioorg Med Chem Lett 2014; 24:5185-9. [DOI: 10.1016/j.bmcl.2014.09.076] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 09/24/2014] [Accepted: 09/25/2014] [Indexed: 12/15/2022]
|
22
|
Alafeefy AM, Abdel-Aziz HA, Vullo D, Al-Tamimi AMS, Awaad AS, Mohamed MA, Capasso C, Supuran CT. Inhibition of human carbonic anhydrase isozymes I, II, IX and XII with a new series of sulfonamides incorporating aroylhydrazone-, [1,2,4]triazolo[3,4-b][1,3,4]thiadiazinyl- or 2-(cyanophenylmethylene)-1,3,4-thiadiazol-3(2H)-yl moieties. J Enzyme Inhib Med Chem 2014; 30:52-6. [PMID: 24666294 DOI: 10.3109/14756366.2013.877897] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A series of benzenesulfonamides incorporating aroylhydrazone, piperidinyl, sulfone, [1,2,4]triazolo[3,4-b][1,3,4]thiadiazinyl- or 2-(cyanophenyl-methylene)-1,3,4-thiadiazol-3(2H)-yl moieties was investigated as inhibitors of four α-carbonic anhydrases (CAs, EC 4.2.1.1), the human (h) isoforms hCA I, II (cytosolic, offtarget enzymes) and hCA IX and XII (transmembrane, tumor-associated isoforms). Low nanomolar activity was observed against hCA II (KIs of 0.56-17.1 nM) with these sulfonamides, whereas the slow cytosolic isoform hCA I was less inhibited by these compounds (KIs of 86.4 nM-32.8 µM). Most of these sulfonamides significantly inhibited CA IX, with KIs in the range of 4.5-47.0 nM, although some of the derivatives incorporating bulkier bicyclic moieties, as well as 2-thienyl fragments, showed a weaker activity against this isoform (KIs in the range 50.1-553 nM). All the investigated compounds also inhibited CA XII with KIs in the range 0.85-376 nM. The best inhibitors were those incorporating bulky [1,2,4]triazolo[3,4-b][1,3,4]thiadiazinyl moieties and 1,3,4-thiadiazol-3(2H)-yl groups.
Collapse
Affiliation(s)
- Ahmed M Alafeefy
- Department of Pharmaceutical Chemistry, College of Pharmacy, Salman bin Abdulaziz University , Alkharj , Saudi Arabia
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Yildiz O, Karahalil F, Can Z, Sahin H, Kolayli S. Total monoamine oxidase (MAO) inhibition by chestnut honey, pollen and propolis. J Enzyme Inhib Med Chem 2013; 29:690-4. [PMID: 24156742 DOI: 10.3109/14756366.2013.843171] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Monoamine oxidase (MAO) inhibitors are generally used in the treatment of depressive disorders and some neurodegenerative illnesses, such as Parkinson's disease and Alzheimer's disease. The aim of this preliminary study was to investigate the MAO [MAO (E.C.1.4.3.4)] inhibiting effect of various apitherapeutic products, such as chestnut honey, pollen and propolis. Extracts' MAO inhibition was measured using peroxidase-linked spectrophotometric assay in enzyme isolated from rat liver microsomes, and the values are expressed as the inhibition concentration (IC50) causing 50% inhibition of MAO. The antioxidant activity of the bee products was also determined in terms of total phenolic content (TPC) and ferric reducing/antioxidant power in aquatic extracts. All samples exhibited substantial inhibition of MAO, propolis having the highest. Inhibition was related to samples' TPCs and antioxidant capacities. These results show that bee products possess a sedative effect and may be effective in protecting humans against depression and similar diseases.
Collapse
Affiliation(s)
- O Yildiz
- Maçka Vocational High School, Karadeniz Technical University , Trabzon , Turkey and
| | | | | | | | | |
Collapse
|
24
|
De Simone G, Alterio V, Supuran CT. Exploiting the hydrophobic and hydrophilic binding sites for designing carbonic anhydrase inhibitors. Expert Opin Drug Discov 2013; 8:793-810. [DOI: 10.1517/17460441.2013.795145] [Citation(s) in RCA: 209] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
25
|
Sharma A, Tiwari M, Supuran CT. Novel coumarins and benzocoumarins acting as isoform-selective inhibitors against the tumor-associated carbonic anhydrase IX. J Enzyme Inhib Med Chem 2013; 29:292-6. [DOI: 10.3109/14756366.2013.777334] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Aditi Sharma
- Department of Pharmacy, S.G.S.I.T.S
Indore, Madhya PradeshIndia
| | - Meena Tiwari
- Department of Pharmacy, S.G.S.I.T.S
Indore, Madhya PradeshIndia
| | - Claudiu T. Supuran
- NEUROFARBA Department, Università degli Studi di Firenze, Sezione di Scienze Farmaceutiche
Via Ugo Schiff 6, 50019 Sesto Fiorentino, FlorenceItaly
| |
Collapse
|
26
|
|
27
|
|
28
|
Supuran CT. Carbonic anhydrases: from biomedical applications of the inhibitors and activators to biotechnological use for CO2 capture. J Enzyme Inhib Med Chem 2013; 28:229-30. [DOI: 10.3109/14756366.2013.761876] [Citation(s) in RCA: 266] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Claudiu T. Supuran
- Università degli Studi di Firenze, Polo Scientifico, NEUROFARBA Department, Pharmaceutical Sciences Section,
Florence, Italy
| |
Collapse
|
29
|
Tarko L, Supuran CT. QSAR studies of sulfamate and sulfamide inhibitors targeting human carbonic anhydrase isozymes I, II, IX and XII. Bioorg Med Chem 2012. [PMID: 23206986 DOI: 10.1016/j.bmc.2012.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The last version of the PRECLAV algorithm was used to investigate a series of sulfamate/sulfamide carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. PRECLAV allows identification of outliers for lead hopping, significant molecular fragments and similarity computation of a calibration set vs. a prediction set of compounds, from the viewpoint of computed QSAR. In the current study the database included 65 sulfamates and sulfamides as calibration set and 51 not yet synthesized sulfamates and sulfamides as prediction set. The dependent property was inhibitory activity for human (h) CA isozymes I, II, IX and XII. There were no outliers for lead hopping in the calibration set. In some cases, replacing of the O-SO2-NH2 by the NH-SO2-NH2 moiety, led to modifications in the structure of molecular fragments in another regions of the molecule. According to the descriptors in the obtained models, the inhibition of all CA isozymes was strongly influenced by the molecular shape and size of the sulfamates/sulfamides (which incorporate a substituted aryl-ureido scaffold). The lipophilicity of the inhibitors seemed to be a minor factor influencing CA inhibitory action. The presence of specific PRECLAV molecular fragments such as a C6 (totally substituted benzene), F, O and NO2 increases the activity of inhibitors against certain isoforms. The presence of molecular fragments such as C, CH, CxHy (substituted benzene/naphthalene) and NH decreased the activity of inhibitors against certain isoforms. In the prediction set, we evidenced seven compounds estimated to be highly active inhibitors for at least three of the investigated isozymes and eight molecules estimated to possess low activity against at least three CAs. The paper suggests the structure of some possible interesting inhibitors incorporating F, O and NO2 fragments that may have affinity for certain human CAs.
Collapse
Affiliation(s)
- Laszlo Tarko
- Centre of Organic Chemistry, Romanian Academy, Bucharest, Sector 6, Spl. Independenţei 202B, PO Box 35-108, MC 060023, Bucharest, Romania.
| | | |
Collapse
|