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Raghunatha P, Inamdar MN, Asdaq SMB, Almuqbil M, Alzahrani AR, Alaqel SI, Kamal M, Alsubaie FH, Alsanie WF, Alamri AS, Rabbani SI, Attimarad M, Mohan S, Alhomrani M. New Thiazole Acetic Acid Derivatives: A Study to Screen Cardiovascular Activity Using Isolated Rat Hearts and Blood Vessels. Molecules 2022; 27:molecules27196138. [PMID: 36234675 PMCID: PMC9572953 DOI: 10.3390/molecules27196138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Cardiovascular diseases are one of the major causes of mortalities worldwide. In the present research, new synthetic derivatives of thiazole were studied using isolated hearts and blood vessels of rats. The heart and thoracic aorta were tested with six new synthesized thiazole acetic acid derivatives (SMVA-10, SMVA-35, SMVA-40, SMVA-41, SMVA-42 and SMVA-60), and the data obtained were statistically analyzed and compared. Isolated rat hearts were used to record the changes in developed tension and heart rate, while thoracic aortas were used to measure the contractile response, before and after treatments. Analysis of the results indicated a significant (p < 0.01) increase in developed tension with the addition of SMVA-35, SMVA-40, SMVA-41 and SMVA-42, which was augmented in the presence of adrenaline without affecting the heart rate. On the other hand, acetylcholine significantly decreased the developed tension, which was significantly reversed (p < 0.01) in the presence of compounds (SMVA-35 and SMVA-60). However, in the presence of SMVA-35 and SMVA-40, acetylcholine-induced bradycardia was significantly (p < 0.01) reduced. Furthermore, only SMVA-42 induced a dose-dependent contractile response in the isolated blood vessel, which was abolished in the presence of prazosin. Therefore, it can be concluded that some of the new synthesized thiazole derivatives exhibited promising results by raising the developed tension without changing the heart rate or blood vessel function, which could be helpful in failing heart conditions. However, more research is required to fully comprehend the function, mechanism and effectiveness of the compounds.
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Affiliation(s)
- P. Raghunatha
- Department of Pharmacology, Al-Ameen College of Pharmacy, Bangalore 560027, India
| | - Mohammed Naseeruddin Inamdar
- Department of Pharmacology, Al-Ameen College of Pharmacy, Bangalore 560027, India
- Department of Pharmacology, East West College of Pharmacy, Bangalore 560091, India
| | - Syed Mohammed Basheeruddin Asdaq
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
- Correspondence: or
| | - Mansour Almuqbil
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdullah R. Alzahrani
- Department of Pharmacology and Toxicology, Faculty of Medicine, Umm Al-Qura University, Al-Abidiyah, P.O. Box 13578, Makkah 21955, Saudi Arabia
| | - Saleh I. Alaqel
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Northern Border University, Rafha 91911, Saudi Arabia
| | - Mehnaz Kamal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Firas Hamdan Alsubaie
- Medical Sale Representative, Jamjoom Pharmaceutical Company, Riyadh 12211, Saudi Arabia
| | - Walaa F. Alsanie
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif 21944, Saudi Arabia
| | - Abdulhakeem S. Alamri
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif 21944, Saudi Arabia
| | - Syed Imam Rabbani
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia
| | - Mahesh Attimarad
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - S. Mohan
- Faculty of Pharmaceutical Sciences, PES University, Bengaluru 560085, India
| | - Majid Alhomrani
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif 21944, Saudi Arabia
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2
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Sava A, Buron F, Routier S, Panainte A, Bibire N, Constantin SM, Lupașcu FG, Focșa AV, Profire L. Design, Synthesis, In Silico and In Vitro Studies for New Nitric Oxide-Releasing Indomethacin Derivatives with 1,3,4-oxadiazole-2-thiol Scaffold. Int J Mol Sci 2021; 22:7079. [PMID: 34209248 PMCID: PMC8267937 DOI: 10.3390/ijms22137079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 12/15/2022] Open
Abstract
Starting from indomethacin (IND), one of the most prescribed non-steroidal anti-inflammatory drugs (NSAIDs), new nitric oxide-releasing indomethacin derivatives with 1,3,4-oxadiazole-2-thiol scaffold (NO-IND-OXDs, 8a-p) have been developed as a safer and more efficient multitarget therapeutic strategy. The successful synthesis of designed compounds (intermediaries and finals) was proved by complete spectroscopic analyses. In order to study the in silico interaction of NO-IND-OXDs with cyclooxygenase isoenzymes, a molecular docking study, using AutoDock 4.2.6 software, was performed. Moreover, their biological characterization, based on in vitro assays, in terms of thermal denaturation of serum proteins, antioxidant effects and the NO releasing capacity, was also performed. Based on docking results, 8k, 8l and 8m proved to be the best interaction for the COX-2 (cyclooxygense-2) target site, with an improved docking score compared with celecoxib. Referring to the thermal denaturation of serum proteins and antioxidant effects, all the tested compounds were more active than IND and aspirin, used as references. In addition, the compounds 8c, 8h, 8i, 8m, 8n and 8o showed increased capacity to release NO, which means they are safer in terms of gastrointestinal side effects.
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Affiliation(s)
- Alexandru Sava
- Department of Analytical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy of Iași, 16 University Street, 700115 Iasi, Romania; (A.S.); (A.P.); (N.B.)
- Institut de Chimie Organique et Analytique ICOA, CNRS UMR 7311, Université d’Orléans, 45067 Orléans, France;
| | - Frederic Buron
- Institut de Chimie Organique et Analytique ICOA, CNRS UMR 7311, Université d’Orléans, 45067 Orléans, France;
| | - Sylvain Routier
- Institut de Chimie Organique et Analytique ICOA, CNRS UMR 7311, Université d’Orléans, 45067 Orléans, France;
| | - Alina Panainte
- Department of Analytical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy of Iași, 16 University Street, 700115 Iasi, Romania; (A.S.); (A.P.); (N.B.)
| | - Nela Bibire
- Department of Analytical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy of Iași, 16 University Street, 700115 Iasi, Romania; (A.S.); (A.P.); (N.B.)
| | - Sandra Mădălina Constantin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy of Iași, 16 University Street, 700115 Iasi, Romania; (S.M.C.); (F.G.L.); (A.V.F.)
| | - Florentina Geanina Lupașcu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy of Iași, 16 University Street, 700115 Iasi, Romania; (S.M.C.); (F.G.L.); (A.V.F.)
| | - Alin Viorel Focșa
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy of Iași, 16 University Street, 700115 Iasi, Romania; (S.M.C.); (F.G.L.); (A.V.F.)
| | - Lenuţa Profire
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy of Iași, 16 University Street, 700115 Iasi, Romania; (S.M.C.); (F.G.L.); (A.V.F.)
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3
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Das M, Bhattacharjee S, Fronczek FR, Bazan NG, Trudell ML. Synthesis, hepatotoxic evaluation and antipyretic activity of nitrate ester analogs of the acetaminophen derivative SCP-1. Bioorg Med Chem Lett 2018; 28:3798-3801. [PMID: 30327145 DOI: 10.1016/j.bmcl.2018.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/10/2018] [Accepted: 09/15/2018] [Indexed: 11/25/2022]
Abstract
A series of nitrate ester analogues of the acetaminophen derivative SCP-1 were prepared by triflic acid catalyzed O-acylation of SCP-1 with chloroalkanoyl chlorides followed by nitration with silver nitrate. The chloroesters and corresponding nitrate esters were obtained in high yields. Preliminary hepatotoxicity studies revealed nitrate esters 5b (MD-38) and 5c (MD-39) to be well tolerated by human hepatocytes and had little effect on the three cytochrome P450 enzymes tested (CYP3A4, CYP2E1 and CYP2D6). In addition, the nitrate ester 5c (MD-39) exhibited antipyretic activity similar to acetaminophen.
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Affiliation(s)
- Madhurima Das
- Department of Chemistry, University of New Orleans, New Orleans, LA 71048 USA
| | - Surjyadipta Bhattacharjee
- Neuroscience Center of Excellence, Louisiana State University Health Science Center, New Orleans, LA 70112, USA
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Nicolas G Bazan
- Neuroscience Center of Excellence, Louisiana State University Health Science Center, New Orleans, LA 70112, USA
| | - Mark L Trudell
- Department of Chemistry, University of New Orleans, New Orleans, LA 71048 USA.
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Smiljkovic M, Matsoukas MT, Kritsi E, Zelenko U, Grdadolnik SG, Calhelha RC, Ferreira ICFR, Sankovic-Babic S, Glamoclija J, Fotopoulou T, Koufaki M, Zoumpoulakis P, Sokovic M. Nitrate Esters of Heteroaromatic Compounds as Candida albicans CYP51 Enzyme Inhibitors. ChemMedChem 2018; 13:251-258. [PMID: 29235267 DOI: 10.1002/cmdc.201700602] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/08/2017] [Indexed: 12/31/2022]
Abstract
Four heteroaromatic compounds bearing nitrate esters were selected using a virtual-screening procedure as putative sterol 14α-demethylase (CYP51) Candida albicans inhibitors. Compounds were examined for their inhibition on C. albicans growth and biofilm formation as well as for their toxicity. NMR spectroscopy studies, in silico docking, and molecular dynamics simulations were used to investigate further the selectivity of these compounds to fungal CYP51. All compounds exhibited good antimicrobial properties, indicated with low minimal inhibitory concentrations and ability to inhibit formation of fungal biofilm. Moreover, all of the compounds had the ability to inhibit growth of C. albicans cells. N-(2-Nitrooxyethyl)-1Η-indole-2-carboxamide was the only compound with selectivity on C. albicans CYP51 that did not exhibit cytotoxic effect on cells isolated from liver and should be further investigated for selective application in new leads for the treatment of candidiasis.
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Affiliation(s)
- Marija Smiljkovic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar Despota Stefana 142, 11000, Belgrade, Serbia
| | - Minos-Timotheos Matsoukas
- Cloudpharm P.C., Monumental Plaza, Building C, Kifissias Avenue 44, Marousi, 15125, Athens, Greece.,Department of Pharmacy, University of Patras, 26500, Rio, Patras, Greece
| | - Eftichia Kritsi
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, Vas. Constantinou Ave. 48, 11635, Athens, Greece
| | - Urska Zelenko
- Department of Biomolecular Structure, National Institute of Chemistry, Hajdrihova ulica 19, 1000, Ljubljana, Slovenia
| | - Simona Golic Grdadolnik
- Department of Biomolecular Structure, National Institute of Chemistry, Hajdrihova ulica 19, 1000, Ljubljana, Slovenia
| | - Ricardo C Calhelha
- Mountain Research Centre (CIMO, ESA), Polytechnic Institute of Bragança, Campus de Santa Aplónia, 5300253, Bragança, Portugal
| | - Isabel C F R Ferreira
- Mountain Research Centre (CIMO, ESA), Polytechnic Institute of Bragança, Campus de Santa Aplónia, 5300253, Bragança, Portugal
| | | | - Jasmina Glamoclija
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar Despota Stefana 142, 11000, Belgrade, Serbia
| | - Theano Fotopoulou
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, Vas. Constantinou Ave. 48, 11635, Athens, Greece
| | - Maria Koufaki
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, Vas. Constantinou Ave. 48, 11635, Athens, Greece
| | - Panagiotis Zoumpoulakis
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, Vas. Constantinou Ave. 48, 11635, Athens, Greece
| | - Marina Sokovic
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar Despota Stefana 142, 11000, Belgrade, Serbia
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Lougiakis N, Papapetropoulos A, Gikas E, Toumpas S, Efentakis P, Wedmann R, Zoga A, Zhou Z, Iliodromitis EK, Skaltsounis AL, Filipovic MR, Pouli N, Marakos P, Andreadou I. Synthesis and Pharmacological Evaluation of Novel Adenine–Hydrogen Sulfide Slow Release Hybrids Designed as Multitarget Cardioprotective Agents. J Med Chem 2016; 59:1776-90. [DOI: 10.1021/acs.jmedchem.5b01223] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nikolaos Lougiakis
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Andreas Papapetropoulos
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Evangelos Gikas
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Spyridon Toumpas
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Panagiotis Efentakis
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Rudolf Wedmann
- Department
of Chemistry and Pharmacy, Friedrich-Alexander University of Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Anastasia Zoga
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
- Second University
Department of Cardiology, Medical School, Attikon General Hospital,
National and Kapodistrian University of Athens, 12462, Athens, Greece
| | - Zhongmin Zhou
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Efstathios K. Iliodromitis
- Second University
Department of Cardiology, Medical School, Attikon General Hospital,
National and Kapodistrian University of Athens, 12462, Athens, Greece
| | - Alexios-Leandros Skaltsounis
- Department
of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Milos R. Filipovic
- Department
of Chemistry and Pharmacy, Friedrich-Alexander University of Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Nicole Pouli
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Panagiotis Marakos
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Ioanna Andreadou
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
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Bibli SI, Iliodromitis EK, Lambertucci C, Zoga A, Lougiakis N, Dagres N, Volpini R, Dal Ben D, Kremastinos DT, Tsantili Kakoulidou A, Cristalli G, Andreadou I. Pharmacological postconditioning of the rabbit heart with non-selective, A1, A2A and A3 adenosine receptor agonists. J Pharm Pharmacol 2014; 66:1140-9. [DOI: 10.1111/jphp.12238] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 02/02/2014] [Indexed: 12/13/2022]
Abstract
Abstract
Objectives
We investigated the effects of novel selective and non-selective adenosine receptor agonists (ARs) on cardioprotection.
Methods
Male rabbits divided into six groups were subjected to 30-min heart ischaemia and 3-h reperfusion: (1) control group, (2) postconditioning (PostC) group, (3) group A: treated with the non-selective agonist (S)-PHPNECA, (4) group B: treated with the A1 agonist CCPA, (5) group C: treated with the A2A agonist VT 7 and (6) group D: treated with the A3 agonist AR 170. The infarcted (I) and the areas at risk (R) were estimated as %I/R. In additional rabbits of all groups, heart samples were taken for determination of Akt, eNOS and STAT 3 at the 10th reperfusion minute.
Key findings
(S)-PHPNECA and CCPA reduced the infarct size (17.2 ± 2.9% and 17.9 ± 2.0% vs 46.8 ± 1.9% in control, P < 0.05), conferring a benefit similar to PostC (26.4 ± 0.3%). Selective A2A and A3 receptor agonists did not reduce the infarct size (39.5 ± 0.8% and 38.7 ± 3.5%, P = NS vs control). Akt, eNOS and STAT 3 were significantly activated after non-selective A1 ARs and PostC.
Conclusions
Non-selective and A1 but not A2A and A3 ARs agonists are essential for triggering cardioprotection. The molecular mechanism involves both RISK and the JAK/STAT pathways.
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Affiliation(s)
- Sophia-Iris Bibli
- Department of Pharmaceutical Chemistry, University of Athens School of Pharmacy, Athens, Greece
| | - Efstathios K Iliodromitis
- Second Department of Cardiology, Attikon University Hospital, University of Athens Medical School, Athens, Greece
| | - Catia Lambertucci
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Anastasia Zoga
- Second Department of Cardiology, Attikon University Hospital, University of Athens Medical School, Athens, Greece
| | - Nikolaos Lougiakis
- Department of Pharmaceutical Chemistry, University of Athens School of Pharmacy, Athens, Greece
| | - Nikolaos Dagres
- Second Department of Cardiology, Attikon University Hospital, University of Athens Medical School, Athens, Greece
| | - Rosaria Volpini
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Diego Dal Ben
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Dimitrios Th Kremastinos
- Second Department of Cardiology, Attikon University Hospital, University of Athens Medical School, Athens, Greece
| | | | - Gloria Cristalli
- Medicinal Chemistry Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Ioanna Andreadou
- Department of Pharmaceutical Chemistry, University of Athens School of Pharmacy, Athens, Greece
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In vitro inflammatory/anti-inflammatory effects of nitrate esters of purines. Eur J Pharmacol 2014; 730:148-56. [PMID: 24613657 DOI: 10.1016/j.ejphar.2014.02.022] [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: 09/19/2013] [Revised: 12/20/2013] [Accepted: 02/09/2014] [Indexed: 11/21/2022]
Abstract
Six purine analogues bearing a nitrate ester group (potential NO donor) were tested on human THP-1 macrophages to investigate their effects on the inflammatory response. Only three analogues increased the basal level of IL-1β. Two analogues exacerbated the inflammatory response induced by ATP but not that induced by H2O2. Only 6-[4-(6-nitroxyacetyl)piperazin-1-yl]-9H-purine (compound MK128) abolished ATP or H2O2-induced IL-1β production in the culture medium. Similar results were reproduced on macrophages differentiated from buffy coats and stimulated with LPS. MK128 was the only analogue to release NO and leading to nitrite formation in the culture medium. The EC50 for inhibition of induced IL-1β production by the cells was estimated to be 10-12µg/ml (about 36µM) and corresponded to the production of around 30µM nitrites in the culture medium. This anti-inflammatory effect of MK128 was mimicked by trinitrin used in 10 fold higher concentrations. Preincubation of cells with NO trapper cPTIO partially abolished the beneficial effect of MK128 while MK137, a ONO2 deprived analogue of MK128, was not able to inhibit induced IL-1β production and proved to be inflammatory. Moreover, purinergic channel inhibitors (oATP and U73122) inhibited the MK137 inflammatory effect. Finally, MK128 reduced the quantity of p20 caspase-1 produced in the culture medium. We suggest that MK128 inhibits IL-1β production via NO production and subsequent inflammasome component nitrosylation. On the opposite MK137, deprived from ONO2 group, could act as agonist of purinergic receptors and could thus activate inflammasome.
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Koufaki M, Fotopoulou T, Iliodromitis EK, Bibli SI, Zoga A, Kremastinos DT, Andreadou I. Discovery of 6-[4-(6-nitroxyhexanoyl)piperazin-1-yl)]-9H-purine, as pharmacological post-conditioning agent. Bioorg Med Chem 2012; 20:5948-56. [DOI: 10.1016/j.bmc.2012.07.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 07/05/2012] [Accepted: 07/23/2012] [Indexed: 10/28/2022]
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9
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Ring opening of aziridines with tetranitromethane in the presence of triethylamine. Efficient synthesis of β-tosylamino nitrates. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.02.106] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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