1
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Zhang J, Xie M, Wu J, Li Y, Sun P, Zhang Y. Access to Functionalized Pyrrolophenanthridine via an ortho C-H Amination/Interannular C-H Arylation Cascade of N-Arylpyrroles. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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2
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Kumari P, Sood S, Kumar A, Singh K. VO(acac)2/H2O2 Mediated Oxidation of 1-(Thiazol-2-yl)-1H-pyrazole-4-carbaldehydes. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2020.1842114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Poonam Kumari
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmaur, India
| | - Sumit Sood
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmaur, India
| | - Anil Kumar
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmaur, India
| | - Karan Singh
- Department of Chemistry, Akal College of Basic Sciences, Eternal University, Baru Sahib, District Sirmaur, India
- Department of Chemistry, School of Basic and Applied Sciences, Lingaya’s Vidyapeeth, Nachauli, Faridabad, Haryana, India
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3
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Mert S, Alım Z, İşgör MM, Anıl B, Kasımoğulları R, Beydemir Ş. Novel pyrazole-3,4-dicarboxamides bearing biologically active sulfonamide moiety as potential carbonic anhydrase inhibitors. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.05.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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4
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From random to rational: A discovery approach to selective subnanomolar inhibitors of human carbonic anhydrase IV based on the Castagnoli-Cushman multicomponent reaction. Eur J Med Chem 2019; 182:111642. [DOI: 10.1016/j.ejmech.2019.111642] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 02/06/2023]
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5
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Bala R, Kumari P, Sood S, Phougat H, Kumar A, Singh K. Pyrazole‐4‐carboxylic Acids from Vanadium‐catalyzed Chemical Transformation of Pyrazole‐4‐carbaldehydes. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3546] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Renu Bala
- Department of Chemistry, Akal College of Basic SciencesEternal University Baru Sahib Sirmour Himachal Pradesh 173101 India
| | - Poonam Kumari
- Department of Chemistry, Akal College of Basic SciencesEternal University Baru Sahib Sirmour Himachal Pradesh 173101 India
| | - Sumit Sood
- Department of Chemistry, Akal College of Basic SciencesEternal University Baru Sahib Sirmour Himachal Pradesh 173101 India
| | - Harshita Phougat
- Department of Chemistry, Akal College of Basic SciencesEternal University Baru Sahib Sirmour Himachal Pradesh 173101 India
| | - Anil Kumar
- Department of Chemistry, Akal College of Basic SciencesEternal University Baru Sahib Sirmour Himachal Pradesh 173101 India
| | - Karan Singh
- Department of Chemistry, Akal College of Basic SciencesEternal University Baru Sahib Sirmour Himachal Pradesh 173101 India
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6
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Čapkauskaitė E, Zubrienė A, Paketurytė V, Timm DD, Tumkevičius S, Matulis D. Thiazole-substituted benzenesulfonamides as inhibitors of 12 human carbonic anhydrases. Bioorg Chem 2018; 77:534-541. [PMID: 29459130 DOI: 10.1016/j.bioorg.2018.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 02/05/2018] [Accepted: 02/09/2018] [Indexed: 12/26/2022]
Abstract
Four series of para or meta - substituted thiazolylbenzenesulfonamides bearing Cl substituents were designed, synthesized, and evaluated as inhibitors of all 12 catalytically active recombinant human carbonic anhydrase (CA) isoforms. Observed affinities were determined by the fluorescent thermal shift assay and the intrinsic affinities were calculated based on the fractions of binding-ready deprotonated sulfonamide and CA bearing protonated hydroxide bound to the catalytic Zn(II) in the active site. Several compounds exhibited selectivity towards CA IX, an anticancer target. Intrinsic affinities reached 30 pM, while the observed affinities - 70 nM. The structure-intrinsic affinity relationship map of the compounds showed the energetic contributions of the thiazole ring and its substituents.
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Affiliation(s)
- Edita Čapkauskaitė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Saulėtekio al. 7, Vilnius LT-10257, Lithuania
| | - Asta Zubrienė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Saulėtekio al. 7, Vilnius LT-10257, Lithuania
| | - Vaida Paketurytė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Saulėtekio al. 7, Vilnius LT-10257, Lithuania
| | - David D Timm
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Saulėtekio al. 7, Vilnius LT-10257, Lithuania
| | - Sigitas Tumkevičius
- Department of Organic Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko 24, Vilnius LT-03225, Lithuania
| | - Daumantas Matulis
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Saulėtekio al. 7, Vilnius LT-10257, Lithuania.
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7
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Gul HI, Mete E, Eren SE, Sakagami H, Yamali C, Supuran CT. Designing, synthesis and bioactivities of 4-[3-(4-hydroxyphenyl)-5-aryl-4,5-dihydro-pyrazol-1-yl]benzenesulfonamides. J Enzyme Inhib Med Chem 2017; 32:169-175. [PMID: 27774817 PMCID: PMC6009964 DOI: 10.1080/14756366.2016.1243536] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 09/28/2016] [Accepted: 09/28/2016] [Indexed: 12/12/2022] Open
Abstract
In this study, 4-[3-(4-hydroxyphenyl)-5-aryl-4,5-dihydro-pyrazol-1-yl]benzenesulfonamide (1-9) types compounds were synthesized and their chemical structures were confirmed by 1H NMR, 13C NMR and HRMS spectra. Cytotoxic and carbonic anhydrase (CA) inhibitory effects of the compounds were investigated. Cytotoxicity experiments pointed out that compound 4, (4-[5-(4-chlorophenyl)-3-(4-hydroxyphenyl)-4,5-dihydro-pyrazol-1-yl]benzenesulfonamide), exerting the highest tumor selectivity (TS) and potency selectivity expression (PSE) values, can be considered as a lead compound of this study in terms of development of novel anticancer agents. All synthesized sulfonamides showed a good inhibition profile on hCA IX and XII in the range of 53.5-923 nM and 6.2-95 nM, respectively. These compounds were 2.5-13.4 times more selective for the inhibition of hCA XII versus hCA IX, except compound 2 which had similar inhibitory action towards both isoenzymes.
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Affiliation(s)
- Halise Inci Gul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Ebru Mete
- Department of Chemistry, Faculty of Arts and Sciences, Ataturk University, Erzurum, Turkey
| | - Sakip Emre Eren
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Hiroshi Sakagami
- Division of Pharmacology, Meikai University School of Dentistry, Sakado, Saitama, Japan
| | - Cem Yamali
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Claudiu T. Supuran
- Polo Scientifico, Laboratorio di Chimica Bioinorganica, Universita degli Studi di Firenze, Sesto Fiorentino, Italy
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8
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Kumari S, Idrees D, Mishra CB, Prakash A, Wahiduzzaman, Ahmad F, Hassan MI, Tiwari M. Design and synthesis of a novel class of carbonic anhydrase-IX inhibitor 1-(3-(phenyl/4-fluorophenyl)-7-imino-3H-[1,2,3]triazolo[4,5d]pyrimidin 6(7H)yl)urea. J Mol Graph Model 2016; 64:101-109. [PMID: 26826799 DOI: 10.1016/j.jmgm.2016.01.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/11/2016] [Accepted: 01/16/2016] [Indexed: 02/07/2023]
Abstract
Carbonic anhydrase IX (CAIX) is a promising target in cancer therapy especially in the case of hypoxia-induced tumors. The selective inhibition of CA isozymes is a challenging task in drug design and discovery process. Here, we performed fluorescence-binding studies and inhibition assay combined with molecular docking and molecular dynamics (MD) simulation analyses to determine the binding affinity of two synthesized triazolo-pyrimidine urea derived (TPUI and TPUII) compounds with CAIX and CAII. Fluorescence binding results are showing that molecule TPUI has an excellent binding-affinity for CAIX (kD=0.048μM). The TPUII also exhibits an appreciable binding affinity (kD=7.52μM) for CAIX. TPUI selectively inhibits CAIX as compared to TPUII in the 4-NPA assay. Docking studies show that TPUI is spatially well-fitted in the active site cavity of CAIX, and is involve in H-bond interactions with His94, His96, His119, Thr199 and Thr200. MD simulation studies revealed that TPUI efficiently binds to CAIX and essential active site residual interaction is consistent during the entire simulation of 40ns. These studies suggest that TPUI appeared as novel class of CAIX inhibitor, and may be used as a lead molecule for the development of potent and selective CAIX inhibitor for the hypoxia-induced cancer therapy.
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Affiliation(s)
- Shikha Kumari
- Bio-Organic Chemistry Laboratory, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, New Delhi 110007, India
| | - Danish Idrees
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Chandra Bhushan Mishra
- Bio-Organic Chemistry Laboratory, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, New Delhi 110007, India
| | - Amresh Prakash
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Wahiduzzaman
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Faizan Ahmad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India.
| | - Manisha Tiwari
- Bio-Organic Chemistry Laboratory, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, New Delhi 110007, India.
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9
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Khloya P, Ceruso M, Ram S, Supuran CT, Sharma PK. Sulfonamide bearing pyrazolylpyrazolines as potent inhibitors of carbonic anhydrase isoforms I, II, IX and XII. Bioorg Med Chem Lett 2015; 25:3208-12. [PMID: 26105196 DOI: 10.1016/j.bmcl.2015.05.096] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 05/14/2015] [Accepted: 05/28/2015] [Indexed: 01/23/2023]
Abstract
A series of pyrazolylpyrazolines was designed, synthesized and evaluated for carbonic anhydrase (CA, EC 4.2.1.1) inhibitory activity against cytosolic human (h) isozymes hCA I and hCA II as well as transmembrane tumor associated isozymes, hCA IX and hCA XII. All the tested compounds exhibited an excellent CA activity profile against hCA I, hCA II and hCA XII when compared to the reference drug acetazolamide (AZA). Compounds 6d, 6f and 7a-7f have exhibited better inhibition profile against hCA XII (Ki = 0.47-5.1 nM) as compared with AZA (Ki = 5.7 nM) especially, compounds 6a, 7a, 7c and 7d which were nearly 10-fold better than reference drug. Against hCA II, all of the tested compounds were better than the standard drug especially compounds 6c, 6d, 7c and 7d (Ki = 1.1-1.7 nM) were many fold better inhibitors than AZA (Ki = 12.1 nM). In addition, they acted as selective CA inhibitors of isoform hCA XII over the physiological isoform hCA I.
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Affiliation(s)
- Poonam Khloya
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India
| | - Mariangela Ceruso
- Università degli Studi di Firenze, Laboratorio di Chimica Bioinorganica, Rm 188, and Neurofarba Department, Sezione di Scienze Farmaceutiche, Via U. Schiff 6, I-50019 Sesto Fiorentino (Firenze), Italy
| | - Sita Ram
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Laboratorio di Chimica Bioinorganica, Rm 188, and Neurofarba Department, Sezione di Scienze Farmaceutiche, Via U. Schiff 6, I-50019 Sesto Fiorentino (Firenze), Italy.
| | - Pawan K Sharma
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India.
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10
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Yusuf M, Jain P. Synthetic and biological studies of pyrazolines and related heterocyclic compounds. ARAB J CHEM 2014. [DOI: 10.1016/j.arabjc.2011.09.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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11
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Rogez-Florent T, Foulon C, Six P, Goossens L, Danel C, Goossens JF. Optimization of the enantioseparation of a diaryl-pyrazole sulfonamide derivative by capillary electrophoresis in a dual CD mode using experimental design. Electrophoresis 2014; 35:2765-71. [PMID: 24723380 DOI: 10.1002/elps.201300639] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/27/2014] [Accepted: 03/29/2014] [Indexed: 11/11/2022]
Abstract
A CE method using dual cationic and neutral cyclodextrins (CD) was optimized for the enantiomeric separation of a compound presenting a diaryl sulfonamide group. Preliminary studies were made to select the optimal CDs and pH of the BGE. Two CDs (amino-β-CD and β-CD) were selected to separate the enantiomers in a 67 mM phosphate buffer at pH 7.4. However, the repeatability of the analyses obtained on bare-fused silica capillary was not acceptable owing to the adsorption of the amino-β-CD to the capillary. To prevent this, a dynamic coating of the capillary was used employing five layers of ionic-polymer (poly(diallyldimethylammonium) chloride (PDADMAC) and poly(sodium 4-styrenesulfonate). The efficiency of the coating was assessed by measuring the EOF stability. Repeatability of the injections was obtained when intermediate coating with PDADMAC was performed between each run. Secondly, this enantioseparation method was optimized using a central composite circumscribed design including three factors: amino-β-CD and β-CD concentrations and the percentage of methanol. Under the optimal conditions (i.e. 16.6 mM of amino-β-CD, 2.6 mM of β-CD, 0% MeOH in 67 mM phosphate buffer (pH 7.4) as BGE, cathodic injection 0.5 psi, 5 s, separation voltage 15 kV and a temperature of 15°C), complete enantioresolution of the analyte was obtained. It is worth mentioning that the design of experiments (DOE) protocol employed showed a significant interaction between CDs, highlighting the utility of DOE in method development. Finally, small variations in the ionic-polymer concentrations did not significantly influence the EOF, confirming the robustness of the coating method.
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Affiliation(s)
- Tiphaine Rogez-Florent
- Université Lille Nord de France, Lille, France; UDSL, Analytics chemistry laboratory, Lille, France
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12
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Khloya P, Celik G, SitaRam, Vullo D, Supuran CT, Sharma PK. 4-Functionalized 1,3-diarylpyrazoles bearing benzenesulfonamide moiety as selective potent inhibitors of the tumor associated carbonic anhydrase isoforms IX and XII. Eur J Med Chem 2014; 76:284-90. [PMID: 24589484 DOI: 10.1016/j.ejmech.2014.02.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/05/2014] [Accepted: 02/08/2014] [Indexed: 10/25/2022]
Abstract
A library of 4-functionalized 1,3-diarylpyrazoles (3a-3h, 5a-5g and 6a-6g) was designed, synthesized and evaluated against four human carbonic anhydrase (CA, EC 4.2.1.1) isozymes representing two cytosolic isozymes hCA I and hCA II, and two transmembrane tumor associated ones, hCA IX and hCA XII. All the twenty two tested compounds exhibited excellent CA activity profile against the four CA isozymes when compared to the reference drug acetazolamide. Six of the tested compounds (3a-3b, 3f, 3h, 6a and 6b) displayed low nanomolar affinity (Ki < 5 nM) for hCA IX whereas seven compounds (3a-3b, 3d-3f, 3h and 6f) displayed Ki < 10 nM against hCA XII. In addition, they acted as selective CA inhibitors of isoforms IX and XII over the physiological isoforms I and II.
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Affiliation(s)
- Poonam Khloya
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India
| | - Gulsah Celik
- Chemistry Department, Balikesir University, 10145 Balikesir, Turkey
| | - SitaRam
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India
| | - Daniela Vullo
- Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy; Università degli Studi di Firenze, Neurofarba Dept., Section of Pharmaceutical and Nutraceutical Sciences, Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.
| | - Pawan K Sharma
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, India.
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13
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Rogez-Florent T, Meignan S, Foulon C, Six P, Gros A, Bal-Mahieu C, Supuran CT, Scozzafava A, Frédérick R, Masereel B, Depreux P, Lansiaux A, Goossens JF, Gluszok S, Goossens L. New selective carbonic anhydrase IX inhibitors: synthesis and pharmacological evaluation of diarylpyrazole-benzenesulfonamides. Bioorg Med Chem 2013; 21:1451-64. [PMID: 23168081 DOI: 10.1016/j.bmc.2012.10.029] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 10/11/2012] [Accepted: 10/14/2012] [Indexed: 01/29/2023]
Abstract
Carbonic anhydrase (CA) IX expression is increased upon hypoxia and has been proposed as a therapeutic target since it has been associated with poor prognosis, tumor progression and pH regulation. We report the synthesis and the pharmacological evaluation of a new class of human carbonic anhydrase (hCA) inhibitors, 4-(5-aryl-2-hydroxymethyl-pyrazol-1-yl)-benzenesulfonamides. A molecular modeling study was conducted in order to simulate the binding mode of this new family of enzyme inhibitors within the active site of hCA IX. Pharmacological studies revealed high hCA IX inhibitory potency in the parameters nanomolar range. This study showed that the position of sulfonamide group in meta of the 1-phenylpyrazole increase a selectivity hCA IX versus hCA II of our compounds. An in vitro antiproliferative screening has been performed on the breast cancer MDA-MB-231 cell using doxorubicin as cytotoxic agent and in presence of selected CA IX inhibitor. The results shown that the cytotoxic efficiency of doxorubicin in an hypoxic environment, expressed in IC50 value, is restored at 20% level with 1μM CA IX inhibitor.
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Proescholdt MA, Merrill MJ, Stoerr EM, Lohmeier A, Pohl F, Brawanski A. Function of carbonic anhydrase IX in glioblastoma multiforme. Neuro Oncol 2012; 14:1357-66. [PMID: 23074198 DOI: 10.1093/neuonc/nos216] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Carbonic anhydrase (CA) IX is over-expressed in glioblastoma; however, its functions in this context are unknown. Metabolically, glioblastomas are highly glycolytic, leading to a significant lactic acid load. Paradoxically, the intracellular pH is alkaline. We hypothesized that CAIX contributes to the extrusion of hydrogen ions into the extracellular space, thereby moderating intra- and extracellular pH and creating an environment conductive to enhanced invasion. We investigated the role of CAIX as a prognostic marker in patients with glioblastoma and its biological function in vitro. CAIX expression was analyzed in 59 patients with glioblastoma by immunohistochemistry. The expression levels were correlated to overall survival. In vitro, U251 and Ln 18 glioblastoma cells were incubated under hypoxia to induce CAIX expression, and RNA interference (RNAi) was used to examine the function of CAIX on cell attachment, invasion, intracellular energy transfer, and susceptibility to adjuvant treatment. High CAIX expression was identified as an independent factor for poor survival in patients with glioblastoma. In vitro, cell attachment and invasion were strongly reduced after knockdown of CAIX. Finally, the effects of radiation and chemotherapy were strongly augmented after CAIX interference and were accompanied by a higher rate of apoptotic cell death. CAIX is an independent prognostic factor for poor outcome in patients with glioblastoma. Cell attachment, invasion, and survival during adjuvant treatment are significantly influenced by high CAIX expression. These results indicate that inhibition of CAIX is a potential metabolic target for the treatment of patients with glioblastoma.
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Affiliation(s)
- Martin A Proescholdt
- Department of Neurosurgery, University of Regensburg Medical Center, Regensburg, Germany.
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15
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Lu CL, Zhou L, Li ZC, Gao X, Zhang W. Pharmacophore modeling, virtual screening, and molecular docking studies for discovery of novel Carbonic anhydrase IX inhibitors. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9868-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Husain A, Madhesia D. Heterocyclic compounds as carbonic anhydrase inhibitor. J Enzyme Inhib Med Chem 2011; 27:773-83. [DOI: 10.3109/14756366.2011.617882] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Asif Husain
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard (Hamdard University),
Hamdard Nagar, New Delhi, India
| | - Diwakar Madhesia
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard (Hamdard University),
Hamdard Nagar, New Delhi, India
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17
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Proescholdt M, Merrill M, Stoerr EM, Lohmeier A, Dietmaier W, Brawanski A. Expression of carbonic anhydrase IX in craniopharyngiomas. J Neurosurg 2011; 115:796-801. [DOI: 10.3171/2011.6.jns1168] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
In craniopharyngiomas, cystic growth causes pressure on vital structures of the adjacent brain, leading to significant morbidity. However, the molecular pathogenesis of this cyst formation remains unknown. Carbonic anhydrase IX (CA IX) is a tumor-associated, hypoxia-inducible enzyme, which can cause fluid production and development of cysts. The authors investigated CA IX expression in craniopharyngiomas and its correlation with the extent of cyst formation. In addition, the major pathways of CA IX regulation, hypoxia and p53 mutation, were analyzed.
Methods
Expression of CA IX was analyzed in 20 craniopharyngioma patients by means of in situ hybridization and immunohistochemistry. Preoperative imaging was used to quantify cyst volume. To analyze putative hypoxic induction of CA IX, immunohistochemical staining for HIF-1α and VEGF was performed. Since p53 negatively regulates CA IX expression, we also analyzed the tumors for p53 mutation by direct sequencing.
Results
Significant CA IX was found in 85% of the 20 cases. The extent of CA IX expression was significantly correlated with cyst volume. HIF-1α expression was largely absent in all tissue samples, whereas moderate VEGF expression was present in a subset of cases but without correlation to cyst volume. No p53 mutation was found in any of the analyzed tumors.
Conclusions
Carbonic anhydrase IX, which is virtually absent in normal brain, is significantly upregulated in craniopharyngiomas and shows a significant association with cyst size. The mechanisms of regulation remain unknown, since neither hypoxia nor p53 appears to play a role. These results indicate that inhibition of CA IX may be a potential target for the adjuvant treatment in patients with cystic craniopharyngiomas.
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Affiliation(s)
| | - Marsha Merrill
- 2Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland
| | | | | | - Wolfgang Dietmaier
- 3Pathology, University Regensburg Medical Center, Regensburg, Germany; and
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