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Colín-Lozano B, Estrada-Soto S, Chávez-Silva F, Gutiérrez-Hernández A, Cerón-Romero L, Giacoman-Martínez A, Almanza-Pérez JC, Hernández-Núñez E, Wang Z, Xie X, Cappiello M, Balestri F, Mura U, Navarrete-Vazquez G. Design, Synthesis and in Combo Antidiabetic Bioevaluation of Multitarget Phenylpropanoic Acids. Molecules 2018; 23:molecules23020340. [PMID: 29415496 PMCID: PMC6017591 DOI: 10.3390/molecules23020340] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/01/2018] [Accepted: 02/03/2018] [Indexed: 12/22/2022] Open
Abstract
We have synthesized a small series of five 3-[4-arylmethoxy)phenyl]propanoic acids employing an easy and short synthetic pathway. The compounds were tested in vitro against a set of four protein targets identified as key elements in diabetes: G protein-coupled receptor 40 (GPR40), aldose reductase (AKR1B1), peroxisome proliferator-activated receptor gama (PPARγ) and solute carrier family 2 (facilitated glucose transporter), member 4 (GLUT-4). Compound 1 displayed an EC50 value of 0.075 μM against GPR40 and was an AKR1B1 inhibitor, showing IC50 = 7.4 μM. Compounds 2 and 3 act as slightly AKR1B1 inhibitors, potent GPR40 agonists and showed an increase of 2 to 4-times in the mRNA expression of PPARγ, as well as the GLUT-4 levels. Docking studies were conducted in order to explain the polypharmacological mode of action and the interaction binding mode of the most active molecules on these targets, showing several coincidences with co-crystal ligands. Compounds 1–3 were tested in vivo at an explorative 100 mg/kg dose, being 2 and 3 orally actives, reducing glucose levels in a non-insulin-dependent diabetes mice model. Compounds 2 and 3 displayed robust in vitro potency and in vivo efficacy, and could be considered as promising multitarget antidiabetic candidates. This is the first report of a single molecule with these four polypharmacological target action.
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Vázquez M, Hernández-Borja F, Contreras L, López J, Alcaraz Y, Cruz D, Estrada-Soto S, Delgado F. Synthesis of Novel Hybrid 4H-Pyran-lipoic and 4H-Pyran-azetidine Derivatives. SYNTHESIS-STUTTGART 2017. [DOI: 10.1055/s-0036-1591730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this study, a molecular hybridization strategy was used to design and synthesize two novel series of hybrid compounds: 4H-pyran-lipoic and 4H-pyran-azetidine, employing ammonium hydroxide and involving the participation of aldehydes, malononitrile, and compounds derived from β-ketoesters to obtain the products with good yields.
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Flores-Flores A, Hidalgo-Figueroa S, Villalobos-Molina R, Ibarra-Barajas M, Bazán-Perkins B, Navarrete-Vázquez G, Estrada-Soto S. Relaxant effect of structurally related flavonoids on isolated tracheal rat rings: a SAR study. Med Chem Res 2017. [DOI: 10.1007/s00044-017-2055-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hernández-Vázquez E, Ocampo-Montalban H, Cerón-Romero L, Cruz M, Gómez-Zamudio J, Hiriart-Valencia G, Villalobos-Molina R, Flores-Flores A, Estrada-Soto S. Antidiabetic, antidyslipidemic and toxicity profile of ENV-2: A potent pyrazole derivative against diabetes and related diseases. Eur J Pharmacol 2017; 803:159-166. [DOI: 10.1016/j.ejphar.2017.03.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 01/11/2023]
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Hidalgo-Figueroa S, Navarrete-Vázquez G, Estrada-Soto S, Giles-Rivas D, Alarcón-Aguilar FJ, León-Rivera I, Giacoman-Martínez A, Miranda Pérez E, Almanza-Pérez JC. Discovery of new dual PPARγ-GPR40 agonists with robust antidiabetic activity: Design, synthesis and in combo drug evaluation. Biomed Pharmacother 2017; 90:53-61. [PMID: 28342366 DOI: 10.1016/j.biopha.2017.03.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 03/09/2017] [Accepted: 03/10/2017] [Indexed: 01/17/2023] Open
Abstract
The design of compounds 1 and 2 was based on the similar scaffold of pharmacophoric groups for PPARγ and GPR40 agonists. In order to find new compounds with improved biological activity, the current manuscript describes a new dual PPARγ-GPR40 agonist. We synthesized two compounds, which were prepared following a multistep synthetic route, and the relative mRNA expression levels of PPARγ, GLUT4, and GPR40 were quantified in cell culture, as well as insulin secretion and [Ca2+] intracellular levels. Compound 1 showed a 7-times increase in the mRNA expression of PPARγ, which in turn enhanced the expression levels of GLUT4 respect to control and pioglitazone. It also showed an increase of 2-fold in the [Ca2+]i level allowing an increment on insulin release, being as active as the positive control (glibenclamide), causing also an increase of 2-fold in mRNA expression of GPR40. Furthermore, the compound 2 showed lower activity than the compound 1. The ester of 1 showed antidiabetic activity at a 50mg/kg single dose in streptozotocin-nicotinamide-induced diabetic mice model. In addition, we achieved a molecular docking study of compound 1 on PPARγ and GPR40 receptors, showing a great affinity for both targets. We observed important polar interactions between the carboxylic group and main residues into the binding pocket. Therefore, the compound 1 has a potential for the development of antidiabetic agents with newfangled dual action.
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Vara-Gama N, Valladares-Méndez A, Navarrete-Vazquez G, Estrada-Soto S, Orozco-Castellanos LM, Rivera-Leyva JC. Biopharmaceutical Characterization and Bioavailability Study of a Tetrazole Analog of Clofibric Acid in Rat. Molecules 2017; 22:E282. [PMID: 28216581 PMCID: PMC6155746 DOI: 10.3390/molecules22020282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/06/2017] [Accepted: 02/07/2017] [Indexed: 11/17/2022] Open
Abstract
In the current investigation, the physicochemical, biopharmaceutical and pharmacokinetic characterization of a new clofibric acid analog (Compound 1) was evaluated. Compound 1 showed affinity by lipophilic phase in 1 to 5 pH interval, indicating that this compound would be absorbed favorably in duodenum or jejunum. Also, Compound 1 possess two ionic species, first above of pH 4.43 and, the second one is present over pH 6.08. The apparent permeability in everted sac rat intestine model was 8.73 × 10-6 cm/s in duodenum and 1.62 × 10-5 cm/s in jejunum, suggesting that Compound 1 has low permeability. Elimination constant after an oral administration of 50 μg/kg in Wistar rat was 1.81 h-1, absorption constant was 3.05 h-1, Cmax was 3.57 μg/mL at 0.33 h, AUC0-α was 956.54 μ/mL·h and distribution volume was 419.4 mL. To IV administration at the same dose, ke was 1.21 h-1, Vd was 399.6 mL and AUC0-α was 747.81 μ/mL·h. No significant differences were observed between pharmacokinetic parameters at every administration route. Bioavailability evaluated was 10.4%. Compound 1 is metabolized to Compound 2 probably by enzymatic hydrolysis, and it showed a half-life of 9.24 h. With these properties, Compound 1 would be considered as a prodrug of Compound 2 with potential as an antidiabetic and anti dyslipidemic agent.
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Flores-Flores A, Hernández-Abreu O, Rios MY, León-Rivera I, Aguilar-Guadarrama B, Castillo-España P, Perea-Arango I, Estrada-Soto S. Vasorelaxant mode of action of dichloromethane-soluble extract from Agastache mexicana and its main bioactive compounds. PHARMACEUTICAL BIOLOGY 2016; 54:2807-2813. [PMID: 27252080 DOI: 10.1080/13880209.2016.1184690] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 04/26/2016] [Indexed: 05/29/2023]
Abstract
CONTEXT Agastache mexicana (Kunth) Lint & Epling (Lamiaceae) is a plant used in Mexican traditional medicine for the treatment of hypertension, anxiety and so on. OBJECTIVE To determine the vasorelaxant effect and functional mode of action of dichloromethane-soluble extract from A. mexicana (DEAm) and isolate the constituents responsible for the pharmacological activity. MATERIALS AND METHODS Extracts were prepared from the aerial parts of A. mexicana (225.6 g) by successive maceration with hexane, dichloromethane and methanol (three times for 72 h at room temperature), respectively. DEAm (0.01-1000 μg/mL), fractions (at 174.27 μg/mL), acacetin and ursolic acid (UA) (0.5-500 μM) were evaluated to determine their vasorelaxant effect on ex vivo rat aorta ring model. In vivo UA antihypertensive action was determined on spontaneously hypertensive rats. RESULTS AND DISCUSSION DEAm induced a significant vasorelaxant effect in concentration-dependent and endothelium-independent manners (EC50 = 174.276 ± 5.98 μg/mL) by a calcium channel blockade and potassium channel opening. Bio-guided fractionation allowed to isolate acacetin (112 mg), UA (2.830 g), acacetin/oleanolic acid (OA) (M1) (155 mg) and acacetin/OA/UA (M2) (1.382 g) mixtures, which also showed significant vasodilation. UA significantly diminished diastolic (80 mmHg) and systolic blood pressure (120 mmHg), but heart rate was not modified. CONCLUSION DEAm produced significant vasorelaxant action by myogenic control cation. The presence of acacetin, OA and UA into the extract was substantial for the relaxant activity of DEAm. In vivo antihypertensive action of UA corroborates the use of A. mexicana as an antihypertensive agent on Mexican folk medicine.
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Ávila-Villarreal G, González-Trujano ME, Carballo-Villalobos AI, Aguilar-Guadarrama B, García-Jiménez S, Giles-Rivas DE, Castillo-España P, Villalobos-Molina R, Estrada-Soto S. Anxiolytic-like effects and toxicological studies of Brickellia cavanillesii (Cass.) A. Gray in experimental mice models. JOURNAL OF ETHNOPHARMACOLOGY 2016; 192:90-98. [PMID: 27381041 DOI: 10.1016/j.jep.2016.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/24/2016] [Accepted: 07/01/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Brickellia cavanillesii (Asteraceae) (Cass.) A. Gray is one of the popular plants consumed in Central America and Mexico for the treatment of several diseases such as hypertension, diabetes and anxiety, among others. AIM OF THE STUDY To determine the anxiolytic-like effect of B. Cavanillesii and the safety of its use through toxicological studies. MATERIAL AND METHODS Anxiolytic-like effects of soluble-methanol extract of B. cavanillesii (MEBc) were evaluated in ambulatory activity (open-field test), hole-board test, cylinder of exploration, the elevated plus-maze and the potentiation of the sodium pentobarbital-induced hypnosis mice models. On the other hand, in vivo toxicological studies were conducted on acute and sub-acute mice models recommended by OECD. Active MEBc was subjected to phytochemical studies through conventional chromatographic techniques to isolate bioactive compounds. RESULTS MEBc (100mg/Kg) showed significant anxiolytic-like effect on animal model used (p<0.05). The phytochemical analysis of MEBc allowed the isolation of two major compounds nicotiflorin and acacetin, among others. Both compounds were found to be partially responsible for the anxiolytic-like effects. Moreover, a median lethal dose (LD50) higher than 2000mg/Kg was determined in mice and sub-acute oral administration of MEBc (100mg/Kg) did not alter body weight, clinical chemistry parameters (ALT and AST) and it did not induce any toxic nor alteration in the liver, kidney and heart functions. CONCLUSIONS In current investigation, we have shown that MEBc has a wide range of pharmacology-toxicology patterns. The results support further investigation of MEBc as a potential anxiolytic phytomedicinal agent.
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García-Díaz JA, Navarrete-Vázquez G, García-Jiménez S, Hidalgo-Figueroa S, Almanza-Pérez JC, Alarcón-Aguilar FJ, Gómez-Zamudio J, Cruz M, Ibarra-Barajas M, Estrada-Soto S. Antidiabetic, antihyperlipidemic and anti-inflammatory effects of tilianin in streptozotocin-nicotinamide diabetic rats. Biomed Pharmacother 2016; 83:667-675. [DOI: 10.1016/j.biopha.2016.07.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 07/12/2016] [Accepted: 07/14/2016] [Indexed: 02/07/2023] Open
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Hernández-Vázquez E, Salgado-Barrera S, Ramírez-Espinosa JJ, Estrada-Soto S, Hernández-Luis F. Synthesis and molecular docking of N′-arylidene-5-(4-chlorophenyl)-1-(3,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbohydrazides as novel hypoglycemic and antioxidant dual agents. Bioorg Med Chem 2016; 24:2298-306. [DOI: 10.1016/j.bmc.2016.04.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/23/2016] [Accepted: 04/01/2016] [Indexed: 01/05/2023]
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Rendón-Vallejo P, Estrada-Soto S, A. Vázquez M, Hernández- Borja F, Villalobos-Molina R, Ibarra-Barajas M. Design, Synthesis and ex vivo Study of the Vasorelaxant Activity Induced by Isosteric Derivatives of Dihydropyridines (NH→O). LETT DRUG DES DISCOV 2016. [DOI: 10.2174/1570180812666151003002501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cerón-Romero L, Paoli P, Camici G, Flores-Morales V, Rios MY, Ramírez-Espinosa JJ, Hidalgo-Figueroa S, Navarrete-Vázquez G, Estrada-Soto S. In vitro and in silico PTP-1B inhibition and in vivo antidiabetic activity of semisynthetic moronic acid derivatives. Bioorg Med Chem Lett 2016; 26:2018-22. [DOI: 10.1016/j.bmcl.2016.02.082] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/25/2016] [Accepted: 02/27/2016] [Indexed: 01/08/2023]
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Navarrete-Vázquez G, Austrich-Olivares A, Godínez-Chaparro B, Hidalgo-Figueroa S, Estrada-Soto S, Hernández-Núñez E, Torres-Gómez H, Schepmann D, Wünsch B. Discovery of 2-(3,4-dichlorophenoxy)-N-(2-morpholin-4-ylethyl)acetamide: A selective σ1 receptor ligand with antinociceptive effect. Biomed Pharmacother 2016; 79:284-93. [PMID: 27044839 DOI: 10.1016/j.biopha.2016.02.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 02/22/2016] [Accepted: 02/23/2016] [Indexed: 02/07/2023] Open
Abstract
Compound 2-(3,4-dichlorophenoxy)-N-(2-morpholin-4-ylethyl)acetamide (1) was designed, prepared and the in vitro binding evaluation against σ1 and σ2 receptors was measured. Compound 1 showed high σ1 receptor affinity (Ki=42 nM) and it was 36-times more selective for σ1 than σ2 receptor. Also, it was performed a molecular docking of compound 1 into the ligand binding pocket homology model of σ1 receptor, showing a salt bridge between the ionized morpholine ring and Asp126, as well as important short contacts with residues Tyr120, His154 and Trp164. Ligand efficiency indexes and predicted toxicity analysis revealed an excellent intrinsic quality of 1. The antinociceptive effect of compound 1 was determined using the formalin test. The ipsilateral local peripheral (10-300 μg/paw) and intrathecal (100 μg/rat) administration of 1 produced a reduction in formalin-induced nociception. The in vivo results indicated that 1 may be effective in treating inflammatory pain.
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González-Trujano ME, Ponce-Muñoz H, Hidalgo-Figueroa S, Navarrete-Vázquez G, Estrada-Soto S. Depressant effects of Agastache mexicana methanol extract and one of major metabolites tilianin. ASIAN PAC J TROP MED 2015; 8:185-90. [PMID: 25902158 DOI: 10.1016/s1995-7645(14)60312-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 01/10/2015] [Accepted: 02/22/2015] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE To determine the depressant-like effects and the possible mechanism of action of tilianin isolated from active methanol extract of Agastache mexicana (A. mexicana). Also, to establish the pharmacophoric requirements of tilianin, as a possible ligand of GABAA/BZD receptor, by the alignment of diazepam, CGS-9896 and diindole, using a previously described pharmacophoric model. METHODS Tilianin (30 to 300 mg/kg, ip. and 300 mg/kg, po.) and methanol crude extract (10 to 300 mg/kg, ip. and 300 mg/kg po.) from A. mexicana were evaluated for potential sedative and anxiolytic-like response drugs by using open-field, hole-board, cylinder of exploration, plus-maze and sodium pentobarbital-induced hypnosis mice methods. RESULTS Methanol extract and tilianin showed anxiolytic-like activity from a dosage of 30 mg/kg, ip. or 300 mg/kg, po. and were less potent than diazepam 0.1 mg/kg, a reference anxiolytic drug used. Moreover, depressant activity of both potentiates sodium pentobarbital (SP)-induced sleeping time. The anxiolytic-like effect of 30 mg/kg ip. observed for the extract and tilianin, by using the plus-maze model, was partially prevented in the presence of flumazenil (a GABAA/BZD antagonist, 5 mg/kg ip.) but not in the presence of WAY 100635 (a selective 5-HT1A receptor antagonist, 0.32 mg/kg, ip.). Pharmacophoric modeling alignments of three agonist of GABAA/BZD allow identify seven chemical features. Tilianin contains six of the seven features previously determined. CONCLUSIONS Results indicate that tilianin is one of the bioactive metabolites in the anxiolytic-like activity of A. mexicana, reinforcing its central nervous system uses, where GABAA/BZD, but not 5-HT1A, receptors are partially involved.
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Navarrete-Vázquez G, Chávez-Silva F, Colín-Lozano B, Estrada-Soto S, Hidalgo-Figueroa S, Guerrero-Álvarez J, Méndez ST, Reyes-Vivas H, Oria-Hernández J, Canul-Canché J, Ortiz-Andrade R, Moo-Puc R. Synthesis of nitro(benzo)thiazole acetamides and in vitro antiprotozoal effect against amitochondriate parasites Giardia intestinalis and Trichomonas vaginalis. Bioorg Med Chem 2015; 23:2204-10. [PMID: 25801157 DOI: 10.1016/j.bmc.2015.02.059] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 02/17/2015] [Accepted: 02/26/2015] [Indexed: 01/03/2023]
Abstract
We synthesized four 5-nitrothiazole (1-4) and four 6-nitrobenzothiazole acetamides (5-8) using an easy two step synthetic route. All compounds were tested in vitro against amitochondriate parasites Giardia intestinalis and Trichomonas vaginalis, showing excellent antiprotozoal effects. IC₅₀'s of the most potent compounds range from nanomolar to low micromolar order, being more active than their drugs of choice. Compound 1 (IC₅₀=122 nM), was 44-times more active than Metronidazole, and 10-fold more effective than Nitazoxanide against G. intestinalis and showed good trichomonicidal activity (IC₅₀=2.24 μM). This compound did not display in vitro cytotoxicity against VERO cells. The in vitro inhibitory effect of compounds 1-8 and Nitazoxanide against G. intestinalis fructose-1,6-biphosphate aldolase (GiFBPA) was evaluated as potential drug target, showing a clear inhibitory effect over the enzyme activity. Molecular docking of compounds 1, 4 and Nitazoxanide into the ligand binding pocket of GiFBPA, revealed contacts with the active site residues of the enzyme. Ligand efficiency metrics of 1 revealed optimal combinations of physicochemical and antiprotozoal properties, better than Nitazoxanide.
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Madariaga-Mazón A, Hernández-Abreu O, Estrada-Soto S, Mata R. Insights on the vasorelaxant mode of action of malbrancheamide. J Pharm Pharmacol 2015; 67:551-8. [DOI: 10.1111/jphp.12346] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 10/05/2014] [Indexed: 01/25/2023]
Abstract
Abstract
Objectives
This study was conducted to evaluate the vasorelaxant effect of the fungal alkaloids malbrancheamides on pre-contracted rat aorta rings. Also, we explored the probable mode of action using experimental and theoretical docking studies.
Methods
The vasorelaxant effect was assessed on rat aorta rings pre-contracted with noradrenaline (0.1 μm). The mechanism of action was evaluated using different inhibitors of the pathways involved in the vasorelaxation process, such as l-NAME, indomethacin, tetraethylammonium and atropine. The docking analyses were carried out with AutoDock 4.2 software using the crystallized structure of the cyclooxygenase domain of eNOS.
Key findings
Malbrancheamides (1–3) induced a significant vasorelaxant activity in a concentration- and endothelium-intact model in rat aorta rings, and a lesser effect in an endothelium-denuded model. Malbrancheamide-induced vasorelaxation was significantly weakened by pretreatment of endothelium-intact aortic rings with L-NAME (10 μm), indicating a nitrergic relaxant mechanism. Docking analysis predicted that 1–3 could activate eNOS throughout an allosteric fashion at C1 and C2 pockets.
Conclusions
Experimental evidence revealed that malbrancheamides induced both endothelium-independent and endothelium-dependent relaxant effects. According to theoretical studies, it is feasible that the endothelium-independent relaxation exerted by malbrancheamide could be mediated by its calmodulin inhibitory properties throughout an interference with myosin light chain phosphorylation and a positive modulation of eNOS.
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Estrada-Soto S, Sánchez-Recillas A, Navarrete-Vázquez G, Tlahuext H. Crystal structure of 4-methyl-7-prop-oxy-2H-chromen-2-one. Acta Crystallogr Sect E Struct Rep Online 2014; 70:451-3. [PMID: 25484772 PMCID: PMC4257269 DOI: 10.1107/s1600536814023678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 10/27/2014] [Indexed: 11/30/2022]
Abstract
The asymmetric unit of the title compound, C13H14O3, contains two independent mol-ecules, A and B, that are inter-connected through an offset π-π inter-action [inter-centroid separation = 3.6087 (4) Å]. The fused benzene and pyran-2-one rings in each mol-ecule are essentially coplanar, having dihedral angles of 1.22 (12) and 1.57 (12)° for mol-ecules A and B, respectively. Similarly, the coumarin ring system and the 7-prop-oxy substituent are close to being coplanar [C-C-O-C torsion angles = 2.9 (2) and 1.4 (2)° for mol-ecules A and B, respectively]. In the crystal, the mol-ecules are connected by C-H⋯O hydrogen bonds, forming supra-molecular tapes along [100] that are linked into a three-dimensional network by C-H⋯π inter-actions, as well as by the aforementioned π-π inter-actions.
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Aguirre-Crespo F, Ruíz-Pérez G, Vergara-Galicia J, Prado-Prado F, Rodríguez-López V, Castillo-España P, Estrada-Soto S. Soil and their use as determinant of vasorelaxant activity induced by Cecropia obtusifolia Bertol. Curr Top Med Chem 2014. [DOI: 10.2174/1568026614666140923150229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Navarrete-Vázquez G, Torres-Gómez H, Hidalgo-Figueroa S, Ramírez-Espinosa JJ, Estrada-Soto S, Medina-Franco JL, León-Rivera I, Alarcón-Aguilar FJ, Almanza-Pérez JC. Synthesis, in vitro and in silico studies of a PPARγ and GLUT-4 modulator with hypoglycemic effect. Bioorg Med Chem Lett 2014; 24:4575-4579. [DOI: 10.1016/j.bmcl.2014.07.068] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 07/22/2014] [Accepted: 07/24/2014] [Indexed: 10/25/2022]
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León-Rivera I, Villeda-Hernández J, Campos-Peña V, Aguirre-Moreno A, Estrada-Soto S, Navarrete-Vázquez G, Rios MY, Aguilar-Guadarrama B, Castillo-España P, Rivera-Leyva JC. Evaluation of the neuroprotective activity of stansin 6, a resin glycoside from Ipomoea stans. Bioorg Med Chem Lett 2014; 24:3541-5. [DOI: 10.1016/j.bmcl.2014.05.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 11/30/2022]
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Brindis F, González-Andrade M, González-Trujano M, Estrada-Soto S, Villalobos-Molina R. Postprandial glycaemia and inhibition of α-glucosidase activity by aqueous extract fromCoriandrum sativum. Nat Prod Res 2014; 28:2021-5. [DOI: 10.1080/14786419.2014.917414] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sánchez-Recillas A, Navarrete-Vázquez G, Hidalgo-Figueroa S, Rios MY, Ibarra-Barajas M, Estrada-Soto S. Semisynthesis, ex vivo evaluation, and SAR studies of coumarin derivatives as potential antiasthmatic drugs. Eur J Med Chem 2014; 77:400-8. [PMID: 24681028 DOI: 10.1016/j.ejmech.2014.03.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 03/08/2014] [Accepted: 03/11/2014] [Indexed: 01/03/2023]
Abstract
Asthma is a chronic inflammatory disorder that causes contraction in the smooth muscle of the airway and blocking of airflow. Reversal the contractile process is a strategy for the search of new drugs that could be used for the treatment of asthma. This work reports the semisynthesis, ex vivo relaxing evaluation and SAR studies of a series of 18 coumarins. The results pointed that the ether derivatives 1-3, 7-9 and 13-15 showed the best activity (Emax = 100%), where compound 2 (42 μM) was the most potent, being 4-times more active than theophylline (positive control). The ether homologation (methyl, ethyl and propyl) in position 7 or positions 6 and 7 of coumarins lead to relaxing effect, meanwhile formation of esters generated less active compounds than ethers. The SAR analysis showed that it is necessary the presence of two small ether groups and the methyl group at position 4 (site 3) encourage biological activity through soft hydrophobic changes in the molecule, without drastically affecting the cLogP.
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Navarrete-Vázquez G, Morales-Vilchis MG, Estrada-Soto S, Ramírez-Espinosa JJ, Hidalgo-Figueroa S, Nava-Zuazo C, Tlahuext H, Leon-Rivera I, Medina-Franco JL, López-Vallejo F, Webster SP, Binnie M, Ortiz-Andrade R, Moreno-Diaz H. Synthesis of 2-{2-[(α/β-naphthalen-1-ylsulfonyl)amino]-1,3-thiazol-4-yl} acetamides with 11β-hydroxysteroid dehydrogenase inhibition and in combo antidiabetic activities. Eur J Med Chem 2014; 74:179-86. [DOI: 10.1016/j.ejmech.2013.12.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 12/06/2013] [Accepted: 12/25/2013] [Indexed: 10/25/2022]
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Rios MY, Estrada-Soto S, Flores-Morales V, Aguilar MI. Chemical constituents from Flourensia resinosa S.F. Blake (Asteraceae). BIOCHEM SYST ECOL 2013. [DOI: 10.1016/j.bse.2013.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Avila-Villarreal G, Hernández-Abreu O, Hidalgo-Figueroa S, Navarrete-Vázquez G, Escalante-Erosa F, Peña-Rodríguez LM, Villalobos-Molina R, Estrada-Soto S. Antihypertensive and vasorelaxant effects of dihydrospinochalcone-A isolated from Lonchocarpus xuul Lundell by NO production: computational and ex vivo approaches. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2013; 20:1241-1246. [PMID: 23880329 DOI: 10.1016/j.phymed.2013.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 05/11/2013] [Accepted: 06/20/2013] [Indexed: 06/02/2023]
Abstract
Current work was conducted to evaluate the vasorelaxant effect of dihydrospinochalcone-A (1) and isocordoin (2), compounds type chalcone isolated from Lonchocarpus xuul, an endemic tree of the Yucatan Peninsula, Mexico. Compounds 1 and 2 were found to induce significant relaxant effect in a concentration-dependent manner on aortic rat rings pre-contracted with noradrenaline (NA, 0.1 μM). Compound 1 was the most active and its effect was endothelium-dependent (Emax=79.67% and EC50=21.46 μM with endothelium and Emax=23.58% and EC50=91.8 μM without endothelium, respectively). The functional mechanism of action for 1 was elucidated. Pre-incubation with L-NAME (unspecific nitric oxide synthase inhibitor), indomethacin (unspecific COX inhibitor), ODQ (soluble guanylyl cyclase inhibitor), atropine (cholinergic receptor antagonist), TEA (unspecific potassium channel blocker) reduced relaxations induced by 1. Oral administration of 50 mg/kg of compound 1 exhibited significant decrease in diastolic and systolic blood pressure in SHR rats. The heart rate was not modified. Compound 1 was docked with a crystal structure of eNOS. Dihydrospinochalcone-A showed calculated affinity with eNOS in the C1 binding pockets, near the catalytic site; Trp449, Trp447 and His373 through aromatic and π-π interactions, also His463 and Arg367 are the residues that make hydrogen bonds with the carbonyl and hydroxyl groups. In conclusion, dihydrospinochalcone-A induces a significant antihypertensive effect due to its direct vasorelaxant action on rat aorta rings, through NO/sCG/PKG pathway and potassium channel opening.
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