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Cho AYH, Chung H, Romero-Parra J, Kumar P, Allarà M, Ligresti A, Gallardo-Garrido C, Pessoa-Mahana H, Faúndez M, Pessoa-Mahana CD. Motifs in Natural Products as Useful Scaffolds to Obtain Novel Benzo[ d]imidazole-Based Cannabinoid Type 2 (CB2) Receptor Agonists. Int J Mol Sci 2023; 24:10918. [PMID: 37446093 DOI: 10.3390/ijms241310918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/02/2023] [Accepted: 05/11/2023] [Indexed: 07/15/2023] Open
Abstract
The endocannabinoid system (ECS) constitutes a broad-spectrum modulator of homeostasis in mammals, providing therapeutic opportunities for several pathologies. Its two main receptors, cannabinoid type 1 (CB1) and type 2 (CB2) receptors, mediate anti-inflammatory responses; however, their differing patterns of expression make the development of CB2-selective ligands therapeutically more attractive. The benzo[d]imidazole ring is considered to be a privileged scaffold in drug discovery and has demonstrated its versatility in the development of molecules with varied pharmacologic properties. On the other hand, the main psychoactive component of Cannabis sativa, delta-9-tetrahydrocannabinol (THC), can be structurally described as an aliphatic terpenoid motif fused to an aromatic polyphenolic (resorcinol) structure. Inspired by the structure of this phytocannabinoid, we combined different natural product motifs with a benzo[d]imidazole scaffold to obtain a new library of compounds targeting the CB2 receptor. Here, we synthesized 26 new compounds, out of which 15 presented CB2 binding and 3 showed potent agonist activity. SAR analysis indicated that the presence of bulky aliphatic or aromatic natural product motifs at position 2 of the benzo[d]imidazoles ring linked by an electronegative atom is essential for receptor recognition, while substituents with moderate bulkiness at position 1 of the heterocyclic core also participate in receptor recognition. Compounds 5, 6, and 16 were further characterized through in vitro cAMP functional assay, showing potent EC50 values between 20 and 3 nM, and compound 6 presented a significant difference between the EC50 of pharmacologic activity (3.36 nM) and IC50 of toxicity (30-38 µM).
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Affiliation(s)
- Analia Young Hwa Cho
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - Hery Chung
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - Javier Romero-Parra
- Organic Chemistry and Physical Chemistry Department, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Olivos 1007, Santiago 7820436, Chile
| | - Poulami Kumar
- National Research Council of Italy, Institute of Biomolecular Chemistry, 80078 Pozzuoli, Italy
| | - Marco Allarà
- National Research Council of Italy, Institute of Biomolecular Chemistry, 80078 Pozzuoli, Italy
| | - Alessia Ligresti
- National Research Council of Italy, Institute of Biomolecular Chemistry, 80078 Pozzuoli, Italy
| | - Carlos Gallardo-Garrido
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - Hernán Pessoa-Mahana
- Organic Chemistry and Physical Chemistry Department, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Olivos 1007, Santiago 7820436, Chile
| | - Mario Faúndez
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - Carlos David Pessoa-Mahana
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile
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2
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Andrades-Lagos J, Campanini-Salinas J, Pedreros-Riquelme A, Mella J, Choquesillo-Lazarte D, Zamora PP, Pessoa-Mahana H, Burbulis I, Vásquez-Velásquez D. Design, Synthesis, and Structure-Activity Relationship Studies of New Quinone Derivatives as Antibacterial Agents. Antibiotics (Basel) 2023; 12:1065. [PMID: 37370384 DOI: 10.3390/antibiotics12061065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Resistance to antibacterial agents is a growing global public health problem that reduces the efficacy of available antibacterial agents, leading to increased patient mortality and morbidity. Unfortunately, only 16 antibacterial drugs have been approved by the FDA in the last 10 years, so it is necessary to develop new agents with novel chemical structures and/or mechanisms of action. In response to this, our group takes up the challenge of designing a new family of pyrimidoisoquinolinquinones displaying antimicrobial activities against multidrug-resistant Gram-positive bacteria. Accordingly, the objective of this study was to establish the necessary structural requirements to obtain compounds with high antibacterial activity, along with the parameters controlling antibacterial activity. To achieve this goal, we designed a family of compounds using different strategies for drug design. Forty structural candidates were synthesized and characterized, and antibacterial assays were carried out against high-priority bacterial pathogens. A variety of structural properties were modified, such as hydrophobicity and chain length of functional groups attached to specific carbon positions of the quinone core. All the synthesized compounds inhibited Gram-positive pathogens in concentrations ranging from 0.5 to 64 µg/mL. Two derivatives exhibited minimum inhibitory concentrations of 64 µg/mL against Klebsiella pneumoniae, while compound 28 demonstrated higher potency against MRSA than vancomycin.
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Affiliation(s)
- Juan Andrades-Lagos
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago 7510157, Chile
- Drug Development Laboratory, Faculty of Chemical and Pharmaceutical, Sciences, Universidad de Chile, Santiago 8380492, Chile
| | - Javier Campanini-Salinas
- Drug Development Laboratory, Faculty of Chemical and Pharmaceutical, Sciences, Universidad de Chile, Santiago 8380492, Chile
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Puerto Montt 5501842, Chile
| | - América Pedreros-Riquelme
- Drug Development Laboratory, Faculty of Chemical and Pharmaceutical, Sciences, Universidad de Chile, Santiago 8380492, Chile
| | - Jaime Mella
- Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Playa Ancha, Valparaíso 2360102, Chile
- Centro de Investigación Farmacopea Chilena (CIFAR), Facultad de Farmacia, Universidad de Valparaíso, Playa Ancha, Valparaíso 2360102, Chile
| | - Duane Choquesillo-Lazarte
- Laboratorio de Estudios Cristalográficos, IACT (CSIC-UGR), Av. de las Palmeras 4, 18100 Armilla, Spain
| | - P P Zamora
- Departamento de Química y Biología, Facultad de Ciencias Naturales, Universidad de Atacama, Copiapó 1530000, Chile
| | - Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Ian Burbulis
- Centro de Investigación Biomédica, Facultad de Medicina y Ciencias, Universidad San Sebastián, Sede de la Patagonia, Puerto Montt 5501842, Chile
| | - David Vásquez-Velásquez
- Drug Development Laboratory, Faculty of Chemical and Pharmaceutical, Sciences, Universidad de Chile, Santiago 8380492, Chile
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Faúndez-Parraguez M, Alarcón-Miranda C, Cho YH, Pessoa-Mahana H, Gallardo-Garrido C, Chung H, Faúndez M, Pessoa-Mahana D. New Pyridone-Based Derivatives as Cannabinoid Receptor Type 2 Agonists. Int J Mol Sci 2021; 22:11212. [PMID: 34681877 PMCID: PMC8537746 DOI: 10.3390/ijms222011212] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/28/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022] Open
Abstract
The activation of the human cannabinoid receptor type II (CB2R) is known to mediate analgesic and anti-inflammatory processes without the central adverse effects related to cannabinoid receptor type I (CB1R). In this work we describe the synthesis and evaluation of a novel series of N-aryl-2-pyridone-3-carboxamide derivatives tested as human cannabinoid receptor type II (CB2R) agonists. Different cycloalkanes linked to the N-aryl pyridone by an amide group displayed CB2R agonist activity as determined by intracellular [cAMP] levels. The most promising compound 8d exhibited a non-toxic profile and similar potency (EC50 = 112 nM) to endogenous agonists Anandamide (AEA) and 2-Arachidonoylglycerol (2-AG) providing new information for the development of small molecules activating CB2R. Molecular docking studies showed a binding pose consistent with two structurally different agonists WIN-55212-2 and AM12033 and suggested structural requirements on the pyridone substituents that can satisfy the orthosteric pocket and induce an agonist response. Our results provide additional evidence to support the 2-pyridone ring as a suitable scaffold for the design of CB2R agonists and represent a starting point for further optimization and development of novel compounds for the treatment of pain and inflammation.
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Affiliation(s)
- Manuel Faúndez-Parraguez
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile; (C.A.-M.); (Y.H.C.); (C.G.-G.); (H.C.); (M.F.)
| | - Carlos Alarcón-Miranda
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile; (C.A.-M.); (Y.H.C.); (C.G.-G.); (H.C.); (M.F.)
| | - Young Hwa Cho
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile; (C.A.-M.); (Y.H.C.); (C.G.-G.); (H.C.); (M.F.)
| | - Hernán Pessoa-Mahana
- Organic Chemistry and Physical Chemistry Department, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Olivos 1007, Santiago 7820436, Chile;
| | - Carlos Gallardo-Garrido
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile; (C.A.-M.); (Y.H.C.); (C.G.-G.); (H.C.); (M.F.)
| | - Hery Chung
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile; (C.A.-M.); (Y.H.C.); (C.G.-G.); (H.C.); (M.F.)
| | - Mario Faúndez
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile; (C.A.-M.); (Y.H.C.); (C.G.-G.); (H.C.); (M.F.)
| | - David Pessoa-Mahana
- Pharmacy Department, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile; (C.A.-M.); (Y.H.C.); (C.G.-G.); (H.C.); (M.F.)
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Méndez D, Donoso-Bustamante V, Pablo Millas-Vargas J, Pessoa-Mahana H, Araya-Maturana R, Fuentes E. Synthesis and pharmacological evaluation of acylhydroquinone derivatives as potent antiplatelet agents. Biochem Pharmacol 2020; 183:114341. [PMID: 33197432 DOI: 10.1016/j.bcp.2020.114341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/20/2022]
Abstract
Platelets are the smallest blood cells, and their activation (platelet cohesion or aggregation) at sites of vascular injury is essential for thrombus formation. Since the use of antiplatelet therapy is an unsolved problem, there are now focused and innovative efforts to develop novel antiplatelet compounds. In this context, we assessed the antiplatelet effect of an acylhydroquinone series, synthesized by Fries rearrangement under microwave irradiation, evaluating the effect of diverse acyl chain lengths, their chlorinated derivatives, and their dimethylated derivatives both in the aromatic ring and also the effect of the introduction of a bromine atom at the terminus of the acyl chain. Findings from a primary screening of cytotoxic activity on platelets by lactate dehydrogenase assay identified 19 non-toxic compounds from the 27 acylhydroquinones evaluated. A large number of them showed IC50 values less than 10 µM acting against specific pathways of platelet aggregation. The highest activity was obtained with compound 38, it exhibited sub-micromolar IC50 of 0.98 ± 0.40, 1.10 ± 0.26, 3.98 ± 0.46, 6.79 ± 3.02 and 42.01 ± 3.48 µM against convulxin-, collagen-, TRAP-6-, PMA- and arachidonic acid-induced platelet aggregation, respectively. It also inhibited P-selectin and granulophysin expression. We demonstrated that the antiplatelet mechanism of compound 38 was through a decrease in a central target in human platelet activation as in mitochondrial function, and this could modulate a lower response of platelets to activating agonists. The results of this study show that the chemical space around ortho-carbonyl hydroquinone moiety is a rich source of biologically active compounds, signaling that the acylhydroquinone scaffold has a promising role in antiplatelet drug research.
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Affiliation(s)
- Diego Méndez
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | | | | | - Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Chile
| | | | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile.
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Gallardo-Garrido C, Cho Y, Cortés-Rios J, Vasquez D, Pessoa-Mahana C, Araya-Maturana R, Pessoa-Mahana H, Faundez M. Nitrofuran drugs beyond redox cycling: Evidence of Nitroreduction-independent cytotoxicity mechanism. Toxicol Appl Pharmacol 2020; 401:115104. [DOI: 10.1016/j.taap.2020.115104] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/16/2020] [Accepted: 06/04/2020] [Indexed: 10/24/2022]
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Rodríguez-Lavado J, Gallardo-Garrido C, Mallea M, Bustos V, Osorio R, Hödar-Salazar M, Chung H, Araya-Maturana R, Lorca M, Pessoa-Mahana CD, Mella-Raipán J, Saitz C, Jaque P, Reyes-Parada M, Iturriaga-Vásquez P, Pessoa-Mahana H. Synthesis, in vitro evaluation and molecular docking of a new class of indolylpropyl benzamidopiperazines as dual AChE and SERT ligands for Alzheimer's disease. Eur J Med Chem 2020; 198:112368. [PMID: 32388114 DOI: 10.1016/j.ejmech.2020.112368] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/11/2020] [Accepted: 04/20/2020] [Indexed: 12/22/2022]
Abstract
During the last decade, the one drug-one target strategy has resulted to be inefficient in facing diseases with complex ethiology like Alzheimer's disease and many others. In this context, the multitarget paradigm has emerged as a promising strategy. Based on this consideration, we aim to develop novel molecules as promiscuous ligands acting in two or more targets at the same time. For such purpose, a new series of indolylpropyl-piperazinyl oxoethyl-benzamido piperazines were synthesized and evaluated as multitarget-directed drugs for the serotonin transporter (SERT) and acetylcholinesterase (AChE). The ability to decrease β-amyloid levels as well as cell toxicity of all compounds were also measured. In vitro results showed that at least four compounds displayed promising activity against SERT and AChE. Compounds 18 and 19 (IC50 = 3.4 and 3.6 μM respectively) exhibited AChE inhibition profile in the same order of magnitude as donepezil (DPZ, IC50 = 2.17 μM), also displaying nanomolar affinity in SERT. Moreover, compounds 17 and 24 displayed high SERT affinities (IC50 = 9.2 and 1.9 nM respectively) similar to the antidepressant citalopram, and significant micromolar AChE activity at the same time. All the bioactive compounds showed a low toxicity profile in the range of concentrations studied. Molecular docking allowed us to rationalize the binding mode of the synthesized compounds in both targets. In addition, we also show that compounds 11 and 25 exhibit significant β-amyloid lowering activity in a cell-based assay, 11 (50% inhibition, 10 μM) and 25 (35% inhibition, 10 μM). These results suggest that indolylpropyl benzamidopiperazines based compounds constitute promising leads for a multitargeted approach for Alzheimer's disease.
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Affiliation(s)
- Julio Rodríguez-Lavado
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos, 1007, Santiago, Chile
| | - Carlos Gallardo-Garrido
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos, 1007, Santiago, Chile
| | - Michael Mallea
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos, 1007, Santiago, Chile
| | - Victor Bustos
- Laboratory of Cellular and Molecular Neuroscience, The Rockefeller University, New York, USA
| | - Rodrigo Osorio
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos, 1007, Santiago, Chile
| | - Martín Hödar-Salazar
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería Ciencias, Universidad de la Frontera, Temuco, Chile
| | - Hery Chung
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Marcos Lorca
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - C David Pessoa-Mahana
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jaime Mella-Raipán
- Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile; Centro de Investigación Farmacopea Chilena (CIFAR), Universidad de Valparaíso, Santa Marta, Valparaíso, Chile
| | - Claudio Saitz
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos, 1007, Santiago, Chile
| | - Pablo Jaque
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos, 1007, Santiago, Chile
| | - Miguel Reyes-Parada
- Centro de Investigación Biomédica y Aplicada (CIBAP), Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Chile; Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile
| | - Patricio Iturriaga-Vásquez
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería Ciencias, Universidad de la Frontera, Temuco, Chile; Center of Excellence in Biotechnology Research Applied to the Environment, Universidad de La Frontera, Temuco, Chile.
| | - Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos, 1007, Santiago, Chile.
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Urra FA, Muñoz F, Córdova-Delgado M, Ramírez MP, Peña-Ahumada B, Rios M, Cruz P, Ahumada-Castro U, Bustos G, Silva-Pavez E, Pulgar R, Morales D, Varela D, Millas-Vargas JP, Retamal E, Ramírez-Rodríguez O, Pessoa-Mahana H, Pavani M, Ferreira J, Cárdenas C, Araya-Maturana R. FR58P1a; a new uncoupler of OXPHOS that inhibits migration in triple-negative breast cancer cells via Sirt1/AMPK/β1-integrin pathway. Sci Rep 2018; 8:13190. [PMID: 30181620 PMCID: PMC6123471 DOI: 10.1038/s41598-018-31367-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/17/2018] [Indexed: 02/06/2023] Open
Abstract
Highly malignant triple-negative breast cancer (TNBC) cells rely mostly on glycolysis to maintain cellular homeostasis; however, mitochondria are still required for migration and metastasis. Taking advantage of the metabolic flexibility of TNBC MDA-MB-231 cells to generate subpopulations with glycolytic or oxidative phenotypes, we screened phenolic compounds containing an ortho-carbonyl group with mitochondrial activity and identified a bromoalkyl-ester of hydroquinone named FR58P1a, as a mitochondrial metabolism-affecting compound that uncouples OXPHOS through a protonophoric mechanism. In contrast to well-known protonophore uncoupler FCCP, FR58P1a does not depolarize the plasma membrane and its effect on the mitochondrial membrane potential and bioenergetics is moderate suggesting a mild uncoupling of OXPHOS. FR58P1a activates AMPK in a Sirt1-dependent fashion. Although the activation of Sirt1/AMPK axis by FR58P1a has a cyto-protective role, selectively inhibits fibronectin-dependent adhesion and migration in TNBC cells but not in non-tumoral MCF10A cells by decreasing β1-integrin at the cell surface. Prolonged exposure to FR58P1a triggers a metabolic reprograming in TNBC cells characterized by down-regulation of OXPHOS-related genes that promote cell survival but comprise their ability to migrate. Taken together, our results show that TNBC cell migration is susceptible to mitochondrial alterations induced by small molecules as FR58P1a, which may have therapeutic implications.
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Affiliation(s)
- Félix A Urra
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile.
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile.
| | - Felipe Muñoz
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Miguel Córdova-Delgado
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - María Paz Ramírez
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Bárbara Peña-Ahumada
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Melany Rios
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Pablo Cruz
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Ulises Ahumada-Castro
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Galdo Bustos
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Eduardo Silva-Pavez
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Rodrigo Pulgar
- Laboratorio de Bioinformática y Expresión Génica, INTA-Universidad de Chile, El Líbano, 5524, Santiago, Chile
| | - Danna Morales
- Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, 8380453, Chile
| | - Diego Varela
- Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, 8380453, Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Chile, Santiago, Chile
| | - Juan Pablo Millas-Vargas
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Evelyn Retamal
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Oney Ramírez-Rodríguez
- Campus Río Simpson, University of Aysén, Obispo Vielmo 62, Coyhaique, 5952122, Aysén, Chile
| | - Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Mario Pavani
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago, Chile
| | - Jorge Ferreira
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago, Chile
| | - César Cárdenas
- Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile.
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile.
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California, 93106, United States.
- The Buck Institute for Research on Aging, Novato, CA, 94945, United States.
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales and Programa de Investigación Asociativa en Cáncer Gástrico, Universidad de Talca, casilla 747, Talca, Chile.
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8
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Méndez-Rojas C, Quiroz G, Faúndez M, Gallardo-Garrido C, Pessoa-Mahana CD, Chung H, Gallardo-Toledo E, Saitz-Barría C, Araya-Maturana R, Kogan MJ, Zúñiga-López MC, Iturriaga-Vásquez P, Valenzuela-Gutiérrez C, Pessoa-Mahana H. Synthesis and biological evaluation of potential acetylcholinesterase inhibitors based on a benzoxazine core. Arch Pharm (Weinheim) 2018; 351:e1800024. [DOI: 10.1002/ardp.201800024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/08/2018] [Accepted: 03/13/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Claudio Méndez-Rojas
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Gabriel Quiroz
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Mario Faúndez
- Departamento de Farmacia, Facultad de Química; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Carlos Gallardo-Garrido
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - C. David Pessoa-Mahana
- Departamento de Farmacia, Facultad de Química; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Hery Chung
- Departamento de Farmacia, Facultad de Química; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Eduardo Gallardo-Toledo
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Claudio Saitz-Barría
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | | | - Marcelo J. Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - María C. Zúñiga-López
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Patricio Iturriaga-Vásquez
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería Ciencias; Universidad de la Frontera; Temuco Chile
| | - Carla Valenzuela-Gutiérrez
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
| | - Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas; Universidad de Chile; Santiago Chile
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9
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Quiroga-Campano C, Gómez-Machuca H, Moris S, Jara P, De la Fuente J, Pessoa-Mahana H, Jullian C, Saitz C. Synthesis of bifunctional receptor for fluoride and cadmium based on calix[4]arene with thiourea moieties. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.089] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Pessoa-Mahana H, Silva-Matus P, Pessoa-Mahana CD, Chung H, Iturriaga-Vásquez P, Quiroz G, Möller-Acuña P, Zapata-Torres G, Saitz-Barría C, Araya-Maturana R, Reyes-Parada M. Synthesis and Docking of Novel 3-Indolylpropyl Derivatives as New Polypharmacological Agents Displaying Affinity for 5-HT 1A R/SERT. Arch Pharm (Weinheim) 2016; 350. [PMID: 27981607 DOI: 10.1002/ardp.201600271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/21/2016] [Accepted: 11/23/2016] [Indexed: 11/07/2022]
Abstract
A series of novel 3-indolylpropyl derivatives was synthesized and evaluated for their binding affinities at the serotonin-1A receptor subtype (5-HT1A R) and the 5-HT transporter (SERT). Compounds 11b and 14b exhibited the highest affinities at the 5-HT1A R (Ki = 43 and 56 nM), whereas compounds 11c and 14a were the most potent analogs at the SERT (Ki = 34 and 17 nM). On the other hand, compounds 14b and 11d showed potent activity at both targets, displaying a profile that makes them promising leads for the search for novel potent ligands with a dual mechanism of action. Molecular docking studies in all the compounds unveiled relevant drug-target interactions, which allowed rationalizing the observed affinities.
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Affiliation(s)
- Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Paul Silva-Matus
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - C David Pessoa-Mahana
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Hery Chung
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Patricio Iturriaga-Vásquez
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de la Frontera, Temuco, Chile
| | - Gabriel Quiroz
- Programa de Doctorado en Farmacología, Universidad de Chile, Santiago, Chile
| | - Patricia Möller-Acuña
- Centro de Bioinformática y Simulación Molecular, Facultad de Ingeniería, Universidad de Talca, Talca, Chile
| | - Gerald Zapata-Torres
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Claudio Saitz-Barría
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | | | - Miguel Reyes-Parada
- Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile
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11
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Romero-Parra J, Mella-Raipán J, Palmieri V, Allarà M, Torres MJ, Pessoa-Mahana H, Iturriaga-Vásquez P, Escobar R, Faúndez M, Di Marzo V, Pessoa-Mahana CD. Synthesis, binding assays, cytotoxic activity and docking studies of benzimidazole and benzothiophene derivatives with selective affinity for the CB2 cannabinoid receptor. Eur J Med Chem 2016; 124:17-35. [PMID: 27560280 DOI: 10.1016/j.ejmech.2016.08.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 07/17/2016] [Accepted: 08/05/2016] [Indexed: 12/11/2022]
Abstract
Herein we report the design, synthesis, bioinformatic and biological studies of benzimidazole and benzothiophene derivatives as new cannabinoid receptor ligands. To test the hypothesis that the lack of a hydrogen bond interaction between benzimidazole and benzothiophene derivatives with Lys192 reduces their affinity for CB1 receptors (as we previously reported) and leads to CB2 selectivity, most of the tested compounds do not exhibit hydrogen bond acceptors. All compounds displayed mostly CB2 selectivity, although this was more pronounced in the benzimidazoles derivatives. Furthermore, docking assays revealed a ∏-cation interaction with Lys109 which could play a key role for the CB2 selectivity index. The series displayed low toxicity on five different cell lines. Derivative 8f presented the best binding profile (Ki = 0.08 μM), high selectivity index (KiCB1/KiCB2) and a low citoxicity. Interestingly, in cell viability experiments, using HL-60 cells (expressing exclusively CB2 receptors), all synthesised compounds were shown to be cytotoxic, suggesting that a CB2 agonist response may be involved.
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Affiliation(s)
- Javier Romero-Parra
- Department of Pharmacy, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna, 4860, Santiago, Chile
| | - Jaime Mella-Raipán
- Institute of Chemistry and Biochemistry, Universidad de Valparaíso, Gran Bretaña, 1111, Valparaíso, Chile
| | - Vittoria Palmieri
- Endocannabinoid Research Group, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 034, Napoli, Italy
| | - Marco Allarà
- Endocannabinoid Research Group, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 034, Napoli, Italy
| | - Maria Jose Torres
- Department of Pharmacy, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna, 4860, Santiago, Chile
| | - Hernán Pessoa-Mahana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Sergio Livingstone, 1007, Santiago, Chile
| | | | - Rossy Escobar
- Department of Pharmacy, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna, 4860, Santiago, Chile
| | - Mario Faúndez
- Department of Pharmacy, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna, 4860, Santiago, Chile
| | - Vincenzo Di Marzo
- Endocannabinoid Research Group, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 034, Napoli, Italy
| | - C David Pessoa-Mahana
- Department of Pharmacy, Faculty of Chemistry, Pontificia Universidad Católica de Chile, Vicuña Mackenna, 4860, Santiago, Chile.
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12
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Urra FA, Córdova-Delgado M, Lapier M, Orellana-Manzano A, Acevedo-Arévalo L, Pessoa-Mahana H, González-Vivanco JM, Martínez-Cifuentes M, Ramírez-Rodríguez O, Millas-Vargas JP, Weiss-López B, Pavani M, Ferreira J, Araya-Maturana R. Small structural changes on a hydroquinone scaffold determine the complex I inhibition or uncoupling of tumoral oxidative phosphorylation. Toxicol Appl Pharmacol 2015; 291:46-57. [PMID: 26712467 DOI: 10.1016/j.taap.2015.12.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 12/12/2015] [Accepted: 12/15/2015] [Indexed: 12/31/2022]
Abstract
Mitochondria participate in several distinctiveness of cancer cell, being a promising target for the design of anti-cancer compounds. Previously, we described that ortho-carbonyl hydroquinone scaffold 14 inhibits the complex I-dependent respiration with selective anti-proliferative effect on mouse mammary adenocarcinoma TA3/Ha cancer cells; however, the structural requirements of this hydroquinone scaffold to affect the oxidative phosphorylation (OXPHOS) of cancer cells have not been studied in detail. Here, we characterize the mitochondrial metabolism of TA3/Ha cancer cells, which exhibit a high oxidative metabolism, and evaluate the effect of small structural changes of the hydroquinone scaffold 14 on the respiration of this cell line. Our results indicate that these structural changes modify the effect on OXPHOS, obtaining compounds with three alternative actions: inhibitors of complex I-dependent respiration, uncoupler of OXPHOS and compounds with both actions. To confirm this, the effect of a bicyclic hydroquinone (9) was evaluated in isolated mitochondria. Hydroquinone 9 increased mitochondrial respiration in state 4o without effects on the ADP-stimulated respiration (state 3ADP), decreasing the complexes I and II-dependent respiratory control ratio. The effect on mitochondrial respiration was reversed by 6-ketocholestanol addition, indicating that this hydroquinone is a protonophoric uncoupling agent. In intact TA3/Ha cells, hydroquinone 9 caused mitochondrial depolarization, decreasing intracellular ATP and NAD(P)H levels and GSH/GSSG ratio, and slightly increasing the ROS levels. Moreover, it exhibited selective NAD(P)H availability-dependent anti-proliferative effect on cancer cells. Therefore, our results indicate that the ortho-carbonyl hydroquinone scaffold offers the possibility to design compounds with specific actions on OXPHOS of cancer cells.
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Affiliation(s)
- Félix A Urra
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago, Chile.
| | - Miguel Córdova-Delgado
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Michel Lapier
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago, Chile
| | - Andrea Orellana-Manzano
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago, Chile
| | - Luis Acevedo-Arévalo
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Jaime M González-Vivanco
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | | | - Oney Ramírez-Rodríguez
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Juan Pablo Millas-Vargas
- Departamento de Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Boris Weiss-López
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
| | - Mario Pavani
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago, Chile
| | - Jorge Ferreira
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago, Chile.
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, Chile.
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13
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Espinosa-Bustos C, Lagos CF, Romero-Parra J, Zárate AM, Mella-Raipán J, Pessoa-Mahana H, Recabarren-Gajardo G, Iturriaga-Vásquez P, Tapia RA, Pessoa-Mahana CD. Design, Synthesis, Biological Evaluation and Binding Mode Modeling of Benzimidazole Derivatives Targeting the Cannabinoid Receptor Type 1. Arch Pharm (Weinheim) 2015; 348:81-8. [DOI: 10.1002/ardp.201400201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 10/26/2014] [Accepted: 10/30/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Christian Espinosa-Bustos
- Department of Pharmacy, Faculty of Chemistry; Pontificia Universidad Catolica de Chile; Santiago Chile
| | - Carlos F. Lagos
- Department of Endocrinology, School of Medicine; Pontificia Universidad Catolica de Chile; Santiago Chile
| | - Javier Romero-Parra
- Department of Pharmacy, Faculty of Chemistry; Pontificia Universidad Catolica de Chile; Santiago Chile
| | - Ana M. Zárate
- Department of Pharmacy, Faculty of Chemistry; Pontificia Universidad Catolica de Chile; Santiago Chile
| | - Jaime Mella-Raipán
- Institute of Chemistry and Biochemistry, Faculty of Science; Universidad de Valparaiso, Playa Ancha; Valparaíso Chile
| | - Hernán Pessoa-Mahana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences; Universidad de Chile; Santiago Chile
| | | | | | - Ricardo A. Tapia
- Department of Organic Chemistry, Faculty of Chemistry; Pontificia Universidad Catolica de Chile; Santiago Chile
| | - C. David Pessoa-Mahana
- Department of Pharmacy, Faculty of Chemistry; Pontificia Universidad Catolica de Chile; Santiago Chile
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14
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Gómez-Machuca H, Quiroga-Campano C, Jullian C, De la Fuente J, Pessoa-Mahana H, Escobar CA, Dobado JA, Saitz C. Study by fluorescence of calix[4]arenes bearing heterocycles with anions: highly selective detection of iodide. J INCL PHENOM MACRO 2014. [DOI: 10.1007/s10847-014-0418-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Ojeda-Gómez C, Pessoa-Mahana H, Iturriaga-Vásquez P, Pessoa-Mahana CD, Recabarren-Gajardo G, Méndez-Rojas C. Synthesis and biological screening of novel indolalkyl arenes targeting the serotonine transporter. Arch Pharm (Weinheim) 2013; 347:174-84. [PMID: 24339227 DOI: 10.1002/ardp.201300321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 09/30/2013] [Accepted: 10/01/2013] [Indexed: 11/05/2022]
Abstract
A series of functionalized indolylalkylarenes 3-16(a and b) were synthesized and their affinities for the serotonin transporter were investigated in vitro. Compounds 3-12(a and b) were obtained by nucleophilic substitution of 3-(1H-indol-3-yl)propyl-4-methylbenzenesulfonates 2(a and b) with a series of azaheterocycles. Compounds 14-16(a and b) were prepared in a two-step sequence by reaction of 3-(1H-indol-3-yl)-2-methylpropanal with substituted 1,2-phenylenediamines. Compounds 3b, 4b, and 5b showed good binding affinities (K(i) = 33.0, 48.0, and 17 nM, respectively). The other synthesized compounds showed moderate or no affinity in the binding studies.
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Affiliation(s)
- Claudia Ojeda-Gómez
- Faculty of Chemical and Pharmaceutical Sciences, Department of Organic and Physical Chemistry, University of Chile, Santiago, Chile
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16
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Quiroga-Campano C, Gómez-Machuca H, Jullian C, De la Fuente J, Pessoa-Mahana H, Saitz C. Study by fluorescence of calix[4]arenes bearing heterocycles with divalent metals: highly selective detection of Pb2+. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-013-0340-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Urra FA, Martínez-Cifuentes M, Pavani M, Lapier M, Jaña-Prado F, Parra E, Maya JD, Pessoa-Mahana H, Ferreira J, Araya-Maturana R. An ortho-carbonyl substituted hydroquinone derivative is an anticancer agent that acts by inhibiting mitochondrial bioenergetics and by inducing G₂/M-phase arrest in mammary adenocarcinoma TA3. Toxicol Appl Pharmacol 2013; 267:218-27. [PMID: 23333614 DOI: 10.1016/j.taap.2012.12.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 10/23/2012] [Accepted: 12/25/2012] [Indexed: 01/16/2023]
Abstract
Tumor cells present a known metabolic reprogramming, which makes them more susceptible for a selective cellular death by modifying its mitochondrial bioenergetics. Anticancer action of the antioxidant 9,10-dihydroxy-4,4-dimethyl-5,8-dihydroanthracen-1(4H)-one (HQ) on mouse mammary adenocarcinoma TA3, and its multiresistant variant TA3-MTXR, were evaluated. HQ decreased the viability of both tumor cells, affecting slightly mammary epithelial cells. This hydroquinone blocked the electron flow through the NADH dehydrogenase (Complex I), leading to ADP-stimulated oxygen consumption inhibition, transmembrane potential dissipation and cellular ATP level decrease, without increasing ROS production. Duroquinol, an electron donor at CoQ level, reversed the decrease of cell viability induced by HQ. Additionally, HQ selectively induced G₂/M-phase arrest. Taken together, our results suggest that the bioenergetic dysfunction provoked by HQ is implicated in its anticancer action.
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Affiliation(s)
- Félix A Urra
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Sergio Livingstone 1007, Casilla 233, Santiago-1, Chile.
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18
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Pessoa-Mahana H, Núñez CU, Araya-Maturana R, Barría CS, Zapata-Torres G, Pessoa-Mahana CD, Iturriaga-Vasquez P, Mella-Raipán J, Reyes-Parada M, Celis-Barros C. Synthesis, 5-hydroxytryptamine1A receptor affinity and docking studies of 3-[3-(4-aryl-1-piperazinyl)-propyl]-1H-indole derivatives. Chem Pharm Bull (Tokyo) 2012; 60:632-8. [PMID: 22689401 DOI: 10.1248/cpb.60.632] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of 3-[3-(4-aryl-1-piperazinyl)-propyl]-1H-indole derivatives (12a-h) was synthesized and evaluated for binding affinity at the human 5-hydroxytryptamine(1A) receptor (5-HT(1A)R) compounds (12b) and (12h) showed the highest 5-HT(1A) receptor affinity (IC(50)=15 nM). Molecular docking studies with all the compounds in a homology model of 5-HT(1A) showed that the main interaction anchoring the ligand in the receptor was a charge-reinforced bond between the protonated nitrogen atom (N-4) of the piperazine ring and Aspartate(3.32).
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Affiliation(s)
- Hernán Pessoa-Mahana
- Department of Organic Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Casilla 233, Santiago 1, Chile.
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19
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Pessoa-Mahana H, Recabarren-Gajardo G, Temer JF, Zapata-Torres G, Pessoa-Mahana CD, Barría CS, Araya-Maturana R. Synthesis, docking studies and biological evaluation of benzo[b]thiophen-2-yl-3-(4-arylpiperazin-1-yl)-propan-1-one derivatives on 5-HT1A serotonin receptors. Molecules 2012; 17:1388-407. [PMID: 22306829 PMCID: PMC6268179 DOI: 10.3390/molecules17021388] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 01/28/2012] [Accepted: 01/30/2012] [Indexed: 01/03/2023] Open
Abstract
A series of novel benzo[b]thiophen-2-yl-3-(4-arylpiperazin-1-yl)-propan-1-one derivatives 6a-f, 7a-f and their corresponding alcohols 8a-f were synthesized and evaluated for their affinity towards 5-HT(1A) receptors. The influence of arylpiperazine moiety and benzo[b]thiophene ring substitutions on binding affinity was studied. The most promising analogue, 1-(benzo[b]thiophen-2-yl)-3-(4-(pyridin-2-yl)piperazin-1-yl)propan-1-one (7e) displayed micromolar affinity (K(i) = 2.30 μM) toward 5-HT(1A) sites. Docking studies shed light on the relevant electrostatic interactions which could explain the observed affinity for this compound.
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Affiliation(s)
- Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile.
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20
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Dobado JA, Gómez-Tamayo JC, Calvo-Flores FG, Martínez-García H, Cardona W, Weiss-López B, Ramírez-Rodríguez O, Pessoa-Mahana H, Araya-Maturana R. NMR assignment in regioisomeric hydroquinones. Magn Reson Chem 2011; 49:358-365. [PMID: 21452342 DOI: 10.1002/mrc.2745] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 01/26/2011] [Accepted: 01/31/2011] [Indexed: 05/30/2023]
Abstract
A set of regioisomeric pairs of tricyclic hydroquinones, analogues of antitumor 9,10-dihydroxy-4,4-dimethyl-5,8-dihydroanthracen-1(4H)-one (1) and other derivatives, were synthesized and their regiochemistry and NMR spectra assigned by using (1)H-detected one-bond (C-H) HMQC and long-range C-H HMBC, in good agreement with theoretical O3LYP/Alhrichs-pVTZ calculations. The 5-hydroxymethyl derivatives (11, 15, 19) showed a (3)J(H, H) coupling constant of methylene protons evidencing the presence of a seven-membered intramolecular hydrogen bonded ring, not observed for the 8-hydroxymethyl isomers.
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Affiliation(s)
- Jose A Dobado
- Grupo de Modelización y Diseño Molecular, Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain.
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21
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Pessoa-Mahana D, Núñez A, Espinosa C, Mella-Raipán J, Pessoa-Mahana H. Synthesis of a novel series of 4-arylpiperazinyl derivatives linked to a 2-(pyridin-3-yl)-1H-benzimidazole as new Delavirdine analogues. J BRAZIL CHEM SOC 2010. [DOI: 10.1590/s0103-50532010000100011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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22
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Pessoa-Mahana H, C. MG, S. MG, Pessoa-Mahana CD, Araya-Maturana R, H. NR, B. CS. Solvent-free microwave-promoted Michael addition of aza-nucleophiles to benzo[b]thiophen-2-yl-2-propenone. ARKIVOC 2009. [DOI: 10.3998/ark.5550190.0010.b29] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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23
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Galarce GD, Foncea RE, Edwards AM, Pessoa-Mahana H, Pessoa-Mahana CD, Ebensperger RA. Biological evaluation of novel 6-Arylbenzimidazo[1,2-c]quinazoline derivatives as inhibitors of LPS-induced TNF-alpha secretion. Biol Res 2008; 41:43-50. [PMID: 18769762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
This study describes the effect of novel 6-Arylbenzimidazo[1,2-c]quinazoline derivatives as tumor necrosis factor alpha (TNF-alpha) production inhibitors. The newly synthesized compounds were tested for their in vitro ability to inhibit the lipolysaccharide (LPS) induced TNF-alpha secretion in the human promyelocytic cell line HL-60. The compound 6-Phenyl-benzimidazo[1,2-c]quinazoline, coded as Gl, resulted as the most potent inhibitor and with no significant cytotoxic activity. Thus, 6-Arylbenzimidazo[1,2-c]quinazoline derivatives may have a potential as anti-inflammatory agents.
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Affiliation(s)
- Gloria D Galarce
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
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24
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Saitz C, De La Fuente J, Jullian C, Pessoa-Mahana H, Olea C. Synthesis of calix[4]arenes bearing benzothiazolyl, benzoxazolyl and benzoimidazolyl heterocycles. Journal of Chemical Research 2008. [DOI: 10.3184/030823408x324869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel series of calix[4]arenes bearing benzothiazole, benzoxazole, and benzoimidazole groups were obtained by the reaction of the corresponding 2-mercaptoheterocycle with 5,11,17,23-tetra- tert-butyl-25,27-bis[2-(chloroacetamido) ethoxy]-26,28-di-hydroxycalix[4]arene and structurally characterised by IR, 1H NMR, 13C NMR, Mass spectra and elemental analyses. From their analytical data, it was found these compounds had cone conformations.
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Affiliation(s)
- Claudio Saitz
- Depto. Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmaceuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Julio De La Fuente
- Depto. Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmaceuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Carolina Jullian
- Depto. Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmaceuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Hernán Pessoa-Mahana
- Depto. Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmaceuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Carolina Olea
- Depto. Química Orgánica y Físico-Química, Facultad de Ciencias Químicas y Farmaceuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
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25
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Araya-Maturana R, Heredia-Moya J, Donoso-Tauda O, Vera M, Hernández JT, Pavani M, Pessoa-Mahana H, Weiss-López B, Ferreira J. Effects of Simple and Angular Chromones on Tumor Cell Respiration. Nat Prod Commun 2008. [DOI: 10.1177/1934578x0800300409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A set of structurally related compounds incorporating a chromone moiety as an essential component of their structures were tested against the TA3 mouse carcinoma cell line and its multidrug-resistant variant TA3-MTX-R. A tentative structure–activity relationship was found for this family of substances, suggesting that a Michael addition at C-1 is involved in the mechanism that provokes the activities.
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Affiliation(s)
- Ramiro Araya-Maturana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, P.O. Box, 233, Santiago 1, Chile
| | - Jorge Heredia-Moya
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, P.O. Box, 233, Santiago 1, Chile
| | - Oscar Donoso-Tauda
- Department of Chemistry, Faculty of Natural Resources, University Andrés Bello, Santiago 275, Chile
| | - Mario Vera
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, P.O. Box, 233, Santiago 1, Chile
| | - Jorge Toledo Hernández
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, P.O. Box, 233, Santiago 1, Chile
| | - Mario Pavani
- Institute of Biomedical Sciences, Molecular and Clinical Pharmacology Program, Faculty of Medicine, University of Chile, P.O. Box, 70086, Santiago 7, Chile
| | - Hernán Pessoa-Mahana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, P.O. Box, 233, Santiago 1, Chile
| | - Boris Weiss-López
- Department of Chemistry, Faculty of Sciences, University of Chile, P.O. Box 653, Santiago, Chile
| | - Jorge Ferreira
- Institute of Biomedical Sciences, Molecular and Clinical Pharmacology Program, Faculty of Medicine, University of Chile, P.O. Box, 70086, Santiago 7, Chile
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Abstract
The structural elucidation of natural products and complex organic molecules relies heavily on the application of proton detected heteronuclear NMR. Among these techniques, the HMBC NMR experiment remains as the most popular among the methods that sample long range coupling constants. The HMBC (C-H) experiment allows the assignment of structural fragments through correlations between protons and carbons separated by more than one bond, usually two or three (2 JC,H and 3 JC,H). It is also possible to obtain valuable information, sometimes crucial, through very long-range, or nonstandard correlations, n JC,H n>3; they can, surprisingly, appear in standard HMBC spectra, or looked for by performing several HMBC experiments with different long-range delays and using a deeper threshold in the contour plot.
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Affiliation(s)
- Ramiro Araya-Maturana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, P.O. Box, 233, Santiago 1, Chile
| | - Hernán Pessoa-Mahana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, P.O. Box, 233, Santiago 1, Chile
| | - Boris Weiss-López
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago 1, Chile
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Pessoa-Mahana H, Kosche C. J, Ron H. N, Recabarren-Gajardo G, Saitz B. C, Araya-Maturana R, David Pessoa-Mahana C. Solvent-Free Microwave Synthesis of 3-(4-Benzo[b]thiophene-2-carbonyl)-1-piperazinyl-1-benzo[b]thiophen-2-yl-1-propanones. New Hetero Bis-Ligands with Potential 5-HT1A Serotonergic Activity. HETEROCYCLES 2008. [DOI: 10.3987/com-08-11326] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Araya-Maturana R, Heredia-Moya J, Krohn K, Flörke U, Pessoa-Mahana H, Weiss-López B, Estévez-Braun A. Domino Inverse Electron Demand Diels-Alder Reactions of Chromones with Ethyl Vinyl Ether. HETEROCYCLES 2007. [DOI: 10.3987/com-07-11026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Araya-Maturana R, Cardona W, Cassels BK, Delgado-Castro T, Ferreira J, Miranda D, Pavani M, Pessoa-Mahana H, Soto-Delgado J, Weiss-López B. Effects of 9,10-dihydroxy-4,4-dimethyl-5,8-dihydro-1(4H)-anthracenone derivatives on tumor cell respiration. Bioorg Med Chem 2006; 14:4664-9. [PMID: 16504517 DOI: 10.1016/j.bmc.2006.02.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2006] [Revised: 02/02/2006] [Accepted: 02/06/2006] [Indexed: 10/25/2022]
Abstract
A series of tricyclic hydroquinones, incorporating a carbonyl group in the ortho position relative to the phenol function, were tested as inhibitors of oxygen uptake against the TA3 mouse carcinoma cell line and its multidrug-resistant variant TA3-MTX-R. The title compound, which proved to be the most active one, also exhibited low micromolar dose-dependent growth inhibition of the human tumor U937 cell line (human monocytic leukemia). A tentative structure-activity relationship is proposed for these substances. A comparison between the cytotoxicities of the title compound and 4,4-dimethyl-5,8-dihydroxynaphthalene-1-one, with their activities as inhibitors of oxygen uptake by the TA3-MTX-R cell line, is presented. Also, the inhibition of oxygen uptake by 6-(4-methylpent-3-enyl)-1,4-naphthoquinone was determined and compared with its reported cytotoxicity toward P-388 (murine lymphocytic leukemia), A-549 (human lung carcinoma), HT-29 (human colon carcinoma), and MEL-28 (human melanoma) cells. The inhibition of oxygen uptake by TA3-MTX-R cells is useful as a quick test for preliminary screening of possible anticancer activity.
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Affiliation(s)
- Ramiro Araya-Maturana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Santiago.
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Araya-Maturana R, Gavín-Sazatornil JA, Heredia-Moya J, Pessoa-Mahana H, Weiss-López B. Long-range correlations ( n j C,H n > 3 ) in the HMBC spectra of 3-(4-oxo-4H-chromen-3-YL)-acrylic acid ethyl esters. J BRAZIL CHEM SOC 2005. [DOI: 10.1590/s0103-50532005000400028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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31
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Araya-Maturana R, Heredia-Moya J, Pessoa-Mahana H, Weiss-López B, Muñoz JC. (2Z)-3-(5-Hydroxy-4-oxo-4H-chromen-3-yl)acrylonitrile. Acta Crystallogr C 2005; 61:o237-9. [PMID: 15805638 DOI: 10.1107/s0108270105004841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2005] [Accepted: 02/11/2005] [Indexed: 11/10/2022] Open
Abstract
The title compound, C12H7NO3, consists of a chromone moiety substituted in position 3 with an acrylonitrile group in a Z configuration. The two planar groups are twisted with respect to one another. The only significant hydrogen bond in the structure is an intramolecular O-H...O bond. pi-pi contacts connecting aromatic groups and C-H...O intermolecular weak interactions lead to a supramolecular layer arrangement.
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Affiliation(s)
- Ramiro Araya-Maturana
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile.
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Pessoa-Mahana H, Pessoa-Mahana CD, Salazar R, Valderrama JA, Saez E, Araya-Maturana R. Solvent-Free Synthesis of 6-Arylbenzimidazo[1,2-
c
]quinazolines under Microwave Irradiation. SYNTHESIS-STUTTGART 2004. [DOI: 10.1055/s-2004-815924] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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33
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De la Fuente JR, Jullian C, Saitz C, Sobarzo-Sánchez E, Neira V, González C, López R, Pessoa-Mahana H. Photoreduction of oxoisoaporphines. Another example of a formal hydride-transfer mechanism. Photochem Photobiol Sci 2004; 3:194-9. [PMID: 14872236 DOI: 10.1039/b310696a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoreduction of 5,6-dimethoxy-, 5-methoxy- and 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one (A) by tertiary amines in oxygen-free solutions generates long-lived semi-reduced metastable photoproducts, A-NH(-), via a stepwise electron-proton-electron transfer mechanism with a limit quantum yield of about 0.1 at high TEA concentrations. These metastable photoproducts revert thermally to the initial oxoisoaporphine nearly quantitatively in the presence or absence of oxygen. We present spectrophotometric, NMR and UV-vis data for the metastable photoproducts. The spectrophotometric results and PM3 and ZINDO/S calculations support the proposed mechanism for the photoreduction of the oxoisoaporphines.
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Affiliation(s)
- Julio R De la Fuente
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago, Chile.
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Valderrama JA, Benites J, Cortés M, Pessoa-Mahana H, Prina E, Fournet A. Studies on Quinones. Part 38: synthesis and leishmanicidal activity of sesquiterpene 1,4-Quinones. Bioorg Med Chem 2003; 11:4713-8. [PMID: 14556786 DOI: 10.1016/j.bmc.2003.08.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The reaction of (+)-euryfuran 1 with several benzo-, naphtho- and benzo[b]thiophene-1,4-quinones in acetic acid yields the corresponding euryfuryl-1,4-quinones 3, 5, 7, 8, 10, 12, and 14. The structure of compounds 7, 8, 12, and 14 was assigned through 2D NMR 1H-13C HMBC experiments. The influence of the acidity of the solvent upon the reactivity and regioselectivity of the quinones to the oxidative coupling reaction, is discussed. The in vitro activity of the euryfurylquinones and their corresponding precursors against Leishmania amazonensis is described.
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Affiliation(s)
- Jaime A Valderrama
- Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile.
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35
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Araya-Maturana R, Heredia-Moya J, Pessoa-Mahana H, Weiss-López B. Improved Selective Reduction of 3-Formylchromones Using Basic Alumina and 2-Propanol. SYNTHETIC COMMUN 2003. [DOI: 10.1081/scc-120023445] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
The present review discusses the synthetic strategies of new ligands exhibiting mainly 5-HT(1A)binding affinities. Specifically we focused our attention in the synthesis of compounds structurally related to arylpiperazine, 2-aminotetralin, and benzopyran derivatives.
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Affiliation(s)
- Hernán Pessoa-Mahana
- Departamento de Química Orgánica y Fisicoquímica. Facultad de Ciencias Químicas y Farmacéuticas. Universidad de Chile. Olivos 1007.Casilla 233. Santiago 1. Chile.
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Araya-Maturana R, Delgado-Castro T, Gárate M, Ferreira J, Pavani M, Pessoa-Mahana H, Cassels BK. Effects of 4,4-dimethyl-5,8-dihydroxynaphtalene-1-one and 4,4-dimethyl-5,8-dihydroxytetralone derivatives on tumor cell respiration. Bioorg Med Chem 2002; 10:3057-60. [PMID: 12110329 DOI: 10.1016/s0968-0896(02)00154-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A set of structurally related compounds incorporating a carbonyl group in the ortho position with regard to a phenol function were tested against the TA3 mouse carcinoma cell line and its multidrug-resistant variant TA3-MTX-R. The series consists of 2'-hydroxyacetophenone, 4'-hydroxyacetophenone 2',5'-dihydroxyacetophenone, 4-acetyl-3,3-dimethyl-5-hydroxy-2-morpholino-2,3-dihydrobenzobfuran, five 4,4-dimethyl-5,8-dioxygenated naphtalene-1-ones and three 4,4-dimethyl-5,8-dioxygenated tetralones. A tentative structure-activity relationship was found for this family of substances, suggesting that a coplanar ortho-carbonyl-1,4-hydroquinone motif is able to cause inhibition of cellular respiration.
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Affiliation(s)
- Ramiro Araya-Maturana
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Casilla 233, Santiago 1, Chile.
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38
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Pessoa-Mahana CD, Valderrama JA, Olmos MG, Espinoza OA, Pessoa-Mahana H, Rojas de Arias A, Nakayama H, Torres S, Miret J. STUDIES ON QUINONES. PART 36.1 SYNTHESIS AND TRYPANOCIDAL ACTIVITY OF 2-ALKOXYCARBONYLBENZO[b]THIOPHENE-4,7-QUINONES. HETEROCYCL COMMUN 2002. [DOI: 10.1515/hc.2002.8.2.135] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Pessoa-Mahana H, Valderrama JA. Synthesis Of 1-Benzazepines as Precursors of 1-Benzazepinediones. SYNTHETIC COMMUN 2000. [DOI: 10.1080/00397910008087260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Valderrama JA, Pessoa-Mahana H, Tapia R. Studies on quinones. Part25. Synthetic approaches to 6,9-dioxygenated-benzazepinones. J Heterocycl Chem 1993. [DOI: 10.1002/jhet.5570300135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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