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Monroy-Cárdenas M, Almarza C, Valenzuela-Hormazábal P, Ramírez D, Urra FA, Martínez-Cifuentes M, Araya-Maturana R. Identification of Antioxidant Methyl Derivatives of Ortho-Carbonyl Hydroquinones That Reduce Caco-2 Cell Energetic Metabolism and Alpha-Glucosidase Activity. Int J Mol Sci 2024; 25:8334. [PMID: 39125904 PMCID: PMC11313435 DOI: 10.3390/ijms25158334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 07/24/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
α-glucosidase, a pharmacological target for type 2 diabetes mellitus (T2DM), is present in the intestinal brush border membrane and catalyzes the hydrolysis of sugar linkages during carbohydrate digestion. Since α-glucosidase inhibitors (AGIs) modulate intestinal metabolism, they may influence oxidative stress and glycolysis inhibition, potentially addressing intestinal dysfunction associated with T2DM. Herein, we report on a study of an ortho-carbonyl substituted hydroquinone series, whose members differ only in the number and position of methyl groups on a common scaffold, on radical-scavenging activities (ORAC assay) and correlate them with some parameters obtained by density functional theory (DFT) analysis. These compounds' effect on enzymatic activity, their molecular modeling on α-glucosidase, and their impact on the mitochondrial respiration and glycolysis of the intestinal Caco-2 cell line were evaluated. Three groups of compounds, according their effects on the Caco-2 cells metabolism, were characterized: group A (compounds 2, 3, 5, 8, 9, and 10) reduces the glycolysis, group B (compounds 1 and 6) reduces the basal mitochondrial oxygen consumption rate (OCR) and increases the extracellular acidification rate (ECAR), suggesting that it induces a metabolic remodeling toward glycolysis, and group C (compounds 4 and 7) increases the glycolysis lacking effect on OCR. Compounds 5 and 10 were more potent as α-glucosidase inhibitors (AGIs) than acarbose, a well-known AGI with clinical use. Moreover, compound 5 was an OCR/ECAR inhibitor, and compound 10 was a dual agent, increasing the proton leak-driven OCR and inhibiting the maximal electron transport flux. Additionally, menadione-induced ROS production was prevented by compound 5 in Caco-2 cells. These results reveal that slight structural variations in a hydroquinone scaffold led to diverse antioxidant capability, α-glucosidase inhibition, and the regulation of mitochondrial bioenergetics in Caco-2 cells, which may be useful in the design of new drugs for T2DM and metabolic syndrome.
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Affiliation(s)
- Matías Monroy-Cárdenas
- Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago 7820436, Chile
- MIBI—Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile; (C.A.); (F.A.U.)
| | - Cristopher Almarza
- MIBI—Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile; (C.A.); (F.A.U.)
- Network for Snake Venom Research and Drug Discovery, Av. Independencia 1027, Santiago 7810000, Chile
- Metabolic Plasticity and Bioenergetics Laboratory, Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 7810000, Chile
| | - Paulina Valenzuela-Hormazábal
- Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción 4030000, Chile; (P.V.-H.); (D.R.)
| | - David Ramírez
- Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción 4030000, Chile; (P.V.-H.); (D.R.)
| | - Félix A. Urra
- MIBI—Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile; (C.A.); (F.A.U.)
- Network for Snake Venom Research and Drug Discovery, Av. Independencia 1027, Santiago 7810000, Chile
- Metabolic Plasticity and Bioenergetics Laboratory, Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 7810000, Chile
| | - Maximiliano Martínez-Cifuentes
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile
| | - Ramiro Araya-Maturana
- MIBI—Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile; (C.A.); (F.A.U.)
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Chile
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Méndez D, Tellería F, Monroy-Cárdenas M, Montecino-Garrido H, Mansilla S, Castro L, Trostchansky A, Muñoz-Córdova F, Zickermann V, Schiller J, Alfaro S, Caballero J, Araya-Maturana R, Fuentes E. Linking triphenylphosphonium cation to a bicyclic hydroquinone improves their antiplatelet effect via the regulation of mitochondrial function. Redox Biol 2024; 72:103142. [PMID: 38581860 PMCID: PMC11002875 DOI: 10.1016/j.redox.2024.103142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/11/2024] [Accepted: 03/28/2024] [Indexed: 04/08/2024] Open
Abstract
Platelets are the critical target for preventing and treating pathological thrombus formation. However, despite current antiplatelet therapy, cardiovascular mortality remains high, and cardiovascular events continue in prescribed patients. In this study, first results were obtained with ortho-carbonyl hydroquinones as antiplatelet agents; we found that linking triphenylphosphonium cation to a bicyclic ortho-carbonyl hydroquinone moiety by a short alkyl chain significantly improved their antiplatelet effect by affecting the mitochondrial functioning. The mechanism of action involves uncoupling OXPHOS, which leads to an increase in mitochondrial ROS production and a decrease in the mitochondrial membrane potential and OCR. This alteration disrupts the energy production by mitochondrial function necessary for the platelet activation process. These effects are responsive to the complete structure of the compounds and not to isolated parts of the compounds tested. The results obtained in this research can be used as the basis for developing new antiplatelet agents that target mitochondria.
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Affiliation(s)
- Diego Méndez
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Francisca Tellería
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Matías Monroy-Cárdenas
- Instituto de Química de Recursos Naturales, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, Talca, 3460000, Chile
| | - Héctor Montecino-Garrido
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Santiago Mansilla
- Departamento de Métodos Cuantitativos and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, 11800, Uruguay
| | - Laura Castro
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, 11800, Uruguay
| | - Andrés Trostchansky
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, 11800, Uruguay
| | | | - Volker Zickermann
- Institute of Biochemistry II, Goethe University Medical School, Germany
| | - Jonathan Schiller
- Institute of Biochemistry II, Goethe University Medical School, Germany
| | - Sergio Alfaro
- Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, 1 Poniente No. 1141, Casilla 721, Talca, Chile
| | - Julio Caballero
- Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, 1 Poniente No. 1141, Casilla 721, Talca, Chile
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, Talca, 3460000, Chile.
| | - Eduardo Fuentes
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile.
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Montecino-Garrido H, Sepúlveda M, Méndez D, Monroy-Cárdenas M, Alfaro S, González-Avendaño M, Caballero J, Urra FA, Araya-Maturana R, Fuentes E. Assessing mitochondria-targeted acyl hydroquinones on the mitochondrial platelet function and cytotoxic activity: Role of the linker length. Free Radic Biol Med 2023; 208:26-36. [PMID: 37516371 DOI: 10.1016/j.freeradbiomed.2023.07.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/10/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
INTRODUCTION The use of triphenylphosphonium cation (TPP+) linked to phenolic compounds by alkyl chains has a significant relevance as a mitochondrial delivery strategy in biomedicine because it affects mitochondrial bioenergetics in models of noncommunicable diseases such as cancer and cardiovascular-related conditions. Studies indicate that a long alkyl chain (10-12 carbon) increases the mitochondrial accumulation of TPP+-linked drugs. In contrast, other studies show that these compounds are consistently toxic to micromolar concentrations (as observed in platelets). In the present study, we evaluated the in vitro effect of three series of triphenylphosphonium-linked acyl hydroquinones derivates on the metabolism and function of human platelets using 3-9 carbons for the alkyl linker. Those were assessed to determine the role of the length of the alkyl chain linker on platelet toxicity. METHODS Human platelets were exposed in vitro to different concentrations (2-40 μM) of every compound; cellular viability, phosphatidylserine exposition, mitochondrial membrane potential (ΔΨm), intracellular calcium release, and intracellular ROS generation were assessed by flow cytometry. An in silico energetic profile was generated with Umbrella sampling molecular dynamics (MD). RESULTS AND CONCLUSIONS There was an increase in cytotoxic activity directly related to the length of the acyl chain and lipophilicity, as seen by three techniques, and this was consistent with a decrease in ΔΨm. The in silico energetic profiles point out that the permeability of the mitochondrial membrane may be involved in the cytotoxicity of phosphonium salts. This information may be relevant for the design of new TPP+ -based drugs with a safe cardiovascular profile.
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Affiliation(s)
- Héctor Montecino-Garrido
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Magdalena Sepúlveda
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Diego Méndez
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Matías Monroy-Cárdenas
- Instituto de Química de Recursos Naturales, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, Talca, Chile
| | - Sergio Alfaro
- Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Talca, 3460000, Chile
| | - Mariela González-Avendaño
- Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Talca, 3460000, Chile
| | - Julio Caballero
- Centro de Bioinformática, Simulación y Modelado (CBSM), Facultad de Ingeniería, Universidad de Talca, Talca, 3460000, Chile
| | - Félix A Urra
- Laboratory of Metabolic Plasticity and Bioenergetics, Program of Molecular and Clinical Pharmacology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Santiago, Chile
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Universidad de Talca, Talca, Chile.
| | - Eduardo Fuentes
- Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile.
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Monroy-Cárdenas M, Andrades V, Almarza C, Vera MJ, Martínez J, Pulgar R, Amalraj J, Araya-Maturana R, Urra FA. A New Quinone-Based Inhibitor of Mitochondrial Complex I in D-Conformation, Producing Invasion Reduction and Sensitization to Venetoclax in Breast Cancer Cells. Antioxidants (Basel) 2023; 12:1597. [PMID: 37627592 PMCID: PMC10451541 DOI: 10.3390/antiox12081597] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Mitochondrial Complex I plays a crucial role in the proliferation, chemoresistance, and metastasis of breast cancer (BC) cells. This highlights it as an attractive target for anti-cancer drugs. Using submitochondrial particles, we identified FRV-1, an ortho-carbonyl quinone, which inhibits NADH:duroquinone activity in D-active conformation and reduces the 3ADP state respiration dependent on Complex I, causing mitochondrial depolarization, ATP drop, increased superoxide levels, and metabolic remodeling towards glycolysis in BC cells. Introducing methyl groups at FRV-1 structure produced analogs that acted as electron acceptors at the Complex I level or increased the inhibitory effect of FCCP-stimulated oxygen consumption rate, which correlated with their redox potential, but increased toxicity on RMF-621 human breast fibroblasts was observed. FRV-1 was inactive in the naphthoquinone oxidoreductase 1 (NOQ1)-positive BC cell line, MCF7, but the sensitivity was recovered by dicoumarol, a NOQ1 inhibitor, suggesting that FRV-1 is a NOQ1 substrate. Importantly, FRV-1 selectively inhibited the proliferation, migration, and invasion of NQO1 negative BC cell, MDA-MB-231, in an OXPHOS- and ROS-dependent manner and sensitized it to the BH3 mimetic drug venetoclax. Overall, FRV-1 is a novel Complex I inhibitor in D-active conformation, blocking possibly the re-activation to A-state, producing selective anti-cancer effects in NQO1-negative BC cell lines.
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Affiliation(s)
- Matías Monroy-Cárdenas
- Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (MIBI), Talca 3480094, Chile
- Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca 3480094, Chile
| | - Víctor Andrades
- Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (MIBI), Talca 3480094, Chile
- Laboratorio de Plasticidad Metabólica y Bioenergética, Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago 7810000, Chile
- Network for Snake Venom Research and Drug Discovery, Santiago 7810000, Chile
| | - Cristopher Almarza
- Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (MIBI), Talca 3480094, Chile
- Laboratorio de Plasticidad Metabólica y Bioenergética, Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago 7810000, Chile
- Network for Snake Venom Research and Drug Discovery, Santiago 7810000, Chile
| | - María Jesús Vera
- Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (MIBI), Talca 3480094, Chile
- Laboratorio de Biología Celular, Instituto de Nutrición y Tecnología de los Alimento (INTA), Universidad de Chile, Santiago 7830490, Chile
| | - Jorge Martínez
- Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (MIBI), Talca 3480094, Chile
- Laboratorio de Biología Celular, Instituto de Nutrición y Tecnología de los Alimento (INTA), Universidad de Chile, Santiago 7830490, Chile
| | - Rodrigo Pulgar
- Laboratorio de Genómica y Genética de Interacciones Biológicas (LG2IB), Instituto de Nutrición y Tecnología de los Alimento (INTA), Universidad de Chile, El Líbano 5524, Santiago 7830490, Chile
| | - John Amalraj
- Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca 3480094, Chile
| | - Ramiro Araya-Maturana
- Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (MIBI), Talca 3480094, Chile
- Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca 3480094, Chile
- Network for Snake Venom Research and Drug Discovery, Santiago 7810000, Chile
| | - Félix A. Urra
- Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (MIBI), Talca 3480094, Chile
- Laboratorio de Plasticidad Metabólica y Bioenergética, Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago 7810000, Chile
- Network for Snake Venom Research and Drug Discovery, Santiago 7810000, Chile
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Tellería F, Mansilla S, Méndez D, Sepúlveda M, Araya-Maturana R, Castro L, Trostchansky A, Fuentes E. The Use of Triphenyl Phosphonium Cation Enhances the Mitochondrial Antiplatelet Effect of the Compound Magnolol. Pharmaceuticals (Basel) 2023; 16:210. [PMID: 37259359 PMCID: PMC9958981 DOI: 10.3390/ph16020210] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/20/2023] [Accepted: 01/27/2023] [Indexed: 08/31/2023] Open
Abstract
Although platelets are anucleated cells, they have fully functional mitochondria, and currently, it is known that several processes that occur in the platelet require the action of mitochondria. There are plenty of mitochondrial-targeted compounds described in the literature related to cancer, however, only a small number of studies have approached their interaction with platelet mitochondria and/or their effects on platelet activity. Recent studies have shown that magnolia extract and mitochondria-targeted magnolol can inhibit mitochondrial respiration and cell proliferation in melanoma and oral cancer cells, respectively, and they can also induce ROS and mitophagy. In this study, the effect of triphenylphosphonium cation, linked by alkyl chains of different lengths, to the organic compound magnolol on human-washed platelets was evaluated. We demonstrated that the addition of triphenylphosphonium by a four-carbon linker to magnolol (MGN4) considerably enhanced the Magnolol antiplatelet effect by a 3-fold decrease in the IC50. Additionally, platelets exposed to MGN4 5 µM showed several differences from the control including increased basal respiration, collagen-induced respiration, ATP-independent respiration, and reduced ATP-dependent respiration and non-mitochondrial respiration.
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Affiliation(s)
- Francisca Tellería
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
| | - Santiago Mansilla
- Departamento de Métodos Cuantitativos and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo 11800, Uruguay
| | - Diego Méndez
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
| | - Magdalena Sepúlveda
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
| | - Ramiro Araya-Maturana
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Chile
| | - Laura Castro
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo 11800, Uruguay
| | - Andrés Trostchansky
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo 11800, Uruguay
| | - Eduardo Fuentes
- MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile
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Ormazabal P, Rodriguez L, Paredes A, Morales G, Fuentes E, Palomo I. Antiplatelet activity of Lampaya medicinalis Phil. in human platelets. NFS JOURNAL 2022. [DOI: 10.1016/j.nfs.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Montecino-Garrido H, Méndez D, Araya-Maturana R, Millas-Vargas JP, Wehinger S, Fuentes E. In Vitro Effect of Mitochondria-Targeted Triphenylphosphonium-Based Compounds (Honokiol, Lonidamine, and Atovaquone) on the Platelet Function and Cytotoxic Activity. Front Pharmacol 2022; 13:893873. [PMID: 35645840 PMCID: PMC9130573 DOI: 10.3389/fphar.2022.893873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/11/2022] [Indexed: 12/31/2022] Open
Abstract
Introduction: Obtaining triphenylphosphonium salts derived from anticancer compounds to inhibit mitochondrial metabolism is of major interest due to their pivotal role in reactive oxygen species (ROS) production, calcium homeostasis, apoptosis, and cell proliferation. However, the use of this type of antitumor compound presents a risk of bleeding since the platelet activation is especially dependent on the mitochondrial function. In this study, we evaluated the in vitro effect of three triphenylphosphonium-based compounds, honokiol (HNK), lonidamine (LDN), and atovaquone (ATO), on the platelet function linked to the triphenylphosphonium cation by a lineal 10-carbon alkyl chain and also the decyltriphenylphosphonium salt (decylphos).Methods: Platelets obtained by phlebotomy from healthy donors were exposed in vitro to different concentrations (0.1–10 μM) of the three compounds; cellular viability, exposure of phosphatidylserine, the mitochondrial membrane potential (∆Ψm), intracellular calcium release, and intracellular ROS generation were measured. Platelet activation and aggregation were induced by agonists (adenosine diphosphate, thrombin receptor-activating peptide-6, convulxin, or phorbol-12-myristate-13-acetate) and were evaluated by flow cytometry and light transmission, respectively.Results: The three compounds showed a slight cytotoxic effect from 1 μM, and this was concomitant with a decrease in ∆Ψm and intracellular calcium increase. Only ATO produced a modest but significant increase in intra-platelet ROS. Also, the three compounds increased the exposure to phosphatidylserine in platelets expressed in platelets positive for annexin V. None of the compounds had an inhibitory effect on the aggregation or activation markers of platelets stimulated with three different agonists. Similar results were obtained with decylphos.Conclusion: Triphenylphosphonium derivatives showed slight platelet toxicity below 1 μM, probably associated with their effect on ∆Ψm and exposure to phosphatidylserine, but no significant effect on platelet activation and aggregation, making them an antitumoral alternative with a low risk of bleeding. However, future assays on animal models and human trials are required to evaluate if their effects with a low risk for hemostasis are replicated in vivo.
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Affiliation(s)
- Héctor Montecino-Garrido
- Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Diego Méndez
- Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Universidad de Talca, Talca, Chile
| | - Juan Pablo Millas-Vargas
- Instituto de Química de Recursos Naturales, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Universidad de Talca, Talca, Chile
| | - Sergio Wehinger
- Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Eduardo Fuentes
- Department of Clinical Biochemistry and Immunohematology, Thrombosis Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics (ACT210097), Medical Technology School, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
- *Correspondence: Eduardo Fuentes,
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Rodríguez L, Plaza A, Méndez D, Carrasco B, Tellería F, Palomo I, Fuentes E. Antioxidant Capacity and Antiplatelet Activity of Aqueous Extracts of Common Bean (Phaseolus vulgaris L.) Obtained with Microwave and Ultrasound Assisted Extraction. PLANTS 2022; 11:plants11091179. [PMID: 35567181 PMCID: PMC9102907 DOI: 10.3390/plants11091179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/11/2022] [Accepted: 04/20/2022] [Indexed: 11/16/2022]
Abstract
Phaseolus vulgaris L. has beneficial effects on several chronic non-communicable diseases (e.g., cardiovascular diseases) related to oxidative stress. This redox state may influence platelet activation and aggregation; which is crucial in thrombus formation. In this work, the antiplatelet and antioxidant potential of aqueous extracts obtained by green processes, microwave-assisted extraction and ultrasound-assisted extraction, from 25 landraces of common beans were investigated. Phenol content and antioxidant potential were determined using the Folin-Ciocalteu method, total monomeric anthocyanin and ORAC assay, respectively. The antiplatelet potential of the extracts was explored by turbidimetry. Microwave extraction showed higher phenol content and antioxidant activity in most extracts. Soja landrace extract obtained by microwave-assisted extraction showed higher phenol content and antioxidant activity (893.45 ± 87.30 mg GAE/g and 35,642.85 ± 2588.88 ORAC μmolTE/g, respectively). Although most of the extracts obtained by microwave-assisted extraction showed antiplatelet activity, the extract of Hallado Aleman landrace obtained by ultrasound-assisted extraction (IC50 = 0.152 ± 0.018 mg/mL) had the highest antiplatelet potential. The extraction method, MAE and UAE, influences the biological potential of the beans, specifically the antiplatelet activity and antioxidant activity. The functional value of this legume for direct consumption by the population was evidenced, as well as its inclusion in food formulations.
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Affiliation(s)
- Lyanne Rodríguez
- Centro de Estudios en Alimentos Procesados (CEAP), CONICYT Programa Regional, Gore Maule R0912001, Casilla 1007, Talca 3480094, Chile; (L.R.); (A.P.); (D.M.); (B.C.)
| | - Andrea Plaza
- Centro de Estudios en Alimentos Procesados (CEAP), CONICYT Programa Regional, Gore Maule R0912001, Casilla 1007, Talca 3480094, Chile; (L.R.); (A.P.); (D.M.); (B.C.)
| | - Diego Méndez
- Centro de Estudios en Alimentos Procesados (CEAP), CONICYT Programa Regional, Gore Maule R0912001, Casilla 1007, Talca 3480094, Chile; (L.R.); (A.P.); (D.M.); (B.C.)
| | - Basilio Carrasco
- Centro de Estudios en Alimentos Procesados (CEAP), CONICYT Programa Regional, Gore Maule R0912001, Casilla 1007, Talca 3480094, Chile; (L.R.); (A.P.); (D.M.); (B.C.)
| | - Francisca Tellería
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile;
| | - Iván Palomo
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile;
- Correspondence: (I.P.); (E.F.)
| | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca 3480094, Chile;
- Correspondence: (I.P.); (E.F.)
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Antiplatelet Activity of Isorhamnetin via Mitochondrial Regulation. Antioxidants (Basel) 2021; 10:antiox10050666. [PMID: 33922903 PMCID: PMC8146847 DOI: 10.3390/antiox10050666] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/09/2021] [Accepted: 04/14/2021] [Indexed: 01/02/2023] Open
Abstract
With the diet, we ingest nutrients capable of modulating platelet function, which plays a crucial role in developing cardiovascular events, one of the leading causes of mortality worldwide. Studies that demonstrate the antiplatelet and antithrombotic potential of bioactive compounds are vital to maintaining good cardiovascular health. In this work, we evaluate the flavonol isorhamnetin’s antiplatelet effect on human platelets, using collagen, thrombin receptor activator peptide 6 (TRAP-6), and phorbol myristate acetate (PMA) as agonists. Isorhamnetin induced a significant inhibition on collagen- and TRAP-6-induced platelet aggregation, with half-maximum inhibitory concentration (IC50) values of 8.1 ± 2.6 and 16.1 ± 11.1 µM, respectively; while it did not show cytotoxic effect. Isorhamnetin reduced adenosine triphosphate levels (ATP) in platelets stimulated by collagen and TRAP-6. We also evidenced that isorhamnetin’s antiplatelet activity was related to the inhibition of mitochondrial function without effect on reactive oxygen species (ROS) levels. Additionally, we investigated isorhamnetin’s effect on thrombus formation in vitro under flow conditions on the damaged vessel wall. In this context, we demonstrate that isorhamnetin at 20 µM induced a significant inhibition on platelet deposition, confirming its antithrombotic effect. Our findings corroborate the antiplatelet and antithrombotic potential of isorhamnetin present in many foods of daily consumption.
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