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Fernandes NDS, Desoti VC, Dias A, da Silva YC, de Azevedo Dos Santos AP, Passarini GM, Nakamura CV, da Veiga Junior VF. Styrylpyrone, isolated from an Amazon plant, induces cell cycle arrest and autophagy in Leishmania amazonensis. Nat Prod Res 2020; 35:4729-4733. [PMID: 31983230 DOI: 10.1080/14786419.2020.1715395] [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] [Indexed: 10/25/2022]
Abstract
The search for bioactive compounds against diseases is imperative and the richness of the Amazon provides a large source to be explored. Current therapies for the treatment of parasitic infections have severe side effects and low efficacy, which makes the development of an effective chemotherapy extremely important. In this study, we describe the isolation of styrylpyrone 4-methoxy-6-(11,12-methylenedioxy-trans-styryl)-2-pyrone (SP), from the Amazonian tree species, Aniba panurensis, the in vitro activity against Leishmania amazonensis promastigotes, and its in silico pharmacokinetics properties. The results showed morphological and ultrastructural alterations, cell cycle impairment, increased reactive oxygen species production, accumulation of lipid bodies and formation of autophagic vacuoles in SP-treated parasites. In silico studies revealed that the compound has a high drug-score, which is encouraging for further investigation. Our results indicate that SP is a promising drug candidate, which induces alterations in L. amazonensis leading to parasite death through cell cycle arrest and autophagy.
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Affiliation(s)
- Nilma de Souza Fernandes
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Universidade Estadual de Maringá, Maringá, Paraná, Brazil.,Departamento de Química, Universidade Federal do Amazonas, Manaus, Brazil
| | - Vânia Cristina Desoti
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Alcilene Dias
- Departamento de Química, Universidade Federal do Amazonas, Manaus, Brazil
| | | | - Ana Paula de Azevedo Dos Santos
- Programa de Pós-graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, Rondônia, Brazil.,Plataforma de Bioensaios em Malária e Leishmaniose, Fundação Oswaldo Cruz, Porto Velho, Rondônia, Brazil
| | - Guilherme Matos Passarini
- Programa de Pós-graduação em Biologia Experimental, Universidade Federal de Rondônia, Porto Velho, Rondônia, Brazil.,Plataforma de Bioensaios em Malária e Leishmaniose, Fundação Oswaldo Cruz, Porto Velho, Rondônia, Brazil
| | - Celso Vataru Nakamura
- Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Valdir Florêncio da Veiga Junior
- Departamento de Química, Universidade Federal do Amazonas, Manaus, Brazil.,Departamento de Engenharia Química, Instituto Militar de Engenharia, Rio de Janeiro, Brazil
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Ribeiro FM, Volpato H, Lazarin-Bidóia D, Desoti VC, de Souza RO, Fonseca MJV, Ueda-Nakamura T, Nakamura CV, Silva SDO. The extended production of UV-induced reactive oxygen species in L929 fibroblasts is attenuated by posttreatment with Arrabidaea chica through scavenging mechanisms. J Photochem Photobiol B 2018; 178:175-181. [PMID: 29156345 DOI: 10.1016/j.jphotobiol.2017.11.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/30/2017] [Accepted: 11/01/2017] [Indexed: 01/07/2023]
Abstract
Ultraviolet radiation (UVR) exposure causes various injurious effects to human skin by generating reactive oxygen species (ROS). Excessive ROS production can lead to oxidative stress which may damage cellular components like lipids and proteins and causing photoaging. The use of natural photochemopreventive agents with antioxidant properties is an important alternative to improve the effectiveness of sunscreens and reduce skin photodamage. A crude extract (CE) from the leaves of Arrabidaea chica underwent partition by a liquid-liquid method. The hexane fraction (FH), chloroform fraction (FC), and ethyl acetate fraction (FEA) were obtained. The antioxidant capacity of the CE, FH, FC, and FEA was studied in a cell-free system using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method and the xanthine/luminol/xanthine oxidase system. The FC had the best antioxidant activity. We also evaluated the photochemoprotective effect of A. chica in protecting L929 fibroblasts against UV-A- and UV-B-induced cell damage. A. chica inhibited the extended production of ROS up to 3h. Posttreatment with the CE and FC attenuated UV-induced cell damage through scavenging mechanisms, including the quenching of intracellular ROS and mitochondrial O2- and preventing lipid peroxidation. These results suggest that A. chica may be a promising non-sunscreen photoprotector that can improve the effectiveness of commercial sunscreens.
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Affiliation(s)
- Fabianne Martins Ribeiro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
| | - Hélito Volpato
- Programa de Pós-Graduação em Ciências Biológicas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Danielle Lazarin-Bidóia
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
| | - Vânia Cristina Desoti
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
| | | | | | - Tânia Ueda-Nakamura
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
| | - Celso Vataru Nakamura
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil; Programa de Pós-Graduação em Ciências Biológicas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Sueli de Oliveira Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil.
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Lazarin-Bidóia D, Desoti VC, Martins SC, Ribeiro FM, Ud Din Z, Rodrigues-Filho E, Ueda-Nakamura T, Nakamura CV, de Oliveira Silva S. Dibenzylideneacetones Are Potent Trypanocidal Compounds That Affect the Trypanosoma cruzi Redox System. Antimicrob Agents Chemother 2016; 60:890-903. [PMID: 26596953 PMCID: PMC4750705 DOI: 10.1128/aac.01360-15] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [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: 06/18/2015] [Accepted: 11/19/2015] [Indexed: 12/30/2022] Open
Abstract
Despite ongoing efforts, the available treatments for Chagas' disease are still unsatisfactory, especially in the chronic phase of the disease. Our previous study reported the strong trypanocidal activity of the dibenzylideneacetones A3K2A1 and A3K2A3 against Trypanosoma cruzi (Z. Ud Din, T. P. Fill, F. F. de Assis, D. Lazarin-Bidóia, V. Kaplum, F. P. Garcia, C. V. Nakamura, K. T. de Oliveira, and E. Rodrigues-Filho, Bioorg Med Chem 22:1121-1127, 2014, http://dx.doi.org/10.1016/j.bmc.2013.12.020). In the present study, we investigated the mechanisms of action of these compounds that are involved in parasite death. We showed that A3K2A1 and A3K2A3 induced oxidative stress in the three parasitic forms, especially trypomastigotes, reflected by an increase in oxidant species production and depletion of the endogenous antioxidant system. This oxidative imbalance culminated in damage in essential cell structures of T. cruzi, reflected by lipid peroxidation and DNA fragmentation. Consequently, A3K2A1 and A3K2A3 induced vital alterations in T. cruzi, leading to parasite death through the three pathways, apoptosis, autophagy, and necrosis.
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Affiliation(s)
- Danielle Lazarin-Bidóia
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Vânia Cristina Desoti
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Solange Cardoso Martins
- Programa de Pós-graduação em Ciências Biológicas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Fabianne Martins Ribeiro
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Zia Ud Din
- LaBioMMi, Departamento de Química, Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil
| | - Edson Rodrigues-Filho
- LaBioMMi, Departamento de Química, Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil
| | - Tânia Ueda-Nakamura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Celso Vataru Nakamura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil Programa de Pós-graduação em Ciências Biológicas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Sueli de Oliveira Silva
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, Paraná, Brazil Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
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Cristina Desoti V, Lazarin-Bidóia D, Martins Ribeiro F, Cardoso Martins S, da Silva Rodrigues JH, Ueda-Nakamura T, Vataru Nakamura C, Farias Ximenes V, de Oliveira Silva S. The Combination of Vitamin K3 and Vitamin C Has Synergic Activity against Forms of Trypanosoma cruzi through a Redox Imbalance Process. PLoS One 2015; 10:e0144033. [PMID: 26641473 PMCID: PMC4671608 DOI: 10.1371/journal.pone.0144033] [Citation(s) in RCA: 13] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 11/12/2015] [Indexed: 12/13/2022] Open
Abstract
Chagas' disease is an infection that is caused by the protozoan Trypanosoma cruzi, affecting millions of people worldwide. Because of severe side effects and variable efficacy, the current treatments for Chagas' disease are unsatisfactory, making the search for new chemotherapeutic agents essential. Previous studies have reported various biological activities of naphthoquinones, such as the trypanocidal and antitumor activity of vitamin K3. The combination of this vitamin with vitamin C exerted better effects against various cancer cells than when used alone. These effects have been attributed to an increase in reactive oxygen species generation. In the present study, we evaluated the activity of vitamin K3 and vitamin C, alone and in combination, against T. cruzi. The vitamin K3 + vitamin C combination exerted synergistic effects against three forms of T. cruzi, leading to morphological, ultrastructural, and functional changes by producing reactive species, decreasing reduced thiol groups, altering the cell cycle, causing lipid peroxidation, and forming autophagic vacuoles. Our hypothesis is that the vitamin K3 + vitamin C combination induces oxidative imbalance in T. cruzi, probably started by a redox cycling process that leads to parasite cell death.
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Affiliation(s)
- Vânia Cristina Desoti
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brasil
| | - Danielle Lazarin-Bidóia
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brasil
| | - Fabianne Martins Ribeiro
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brasil
| | - Solange Cardoso Martins
- Programa de Pós Graduação em Ciências Biológicas—Biologia Celular e Molecular, Universidade Estadual de Maringá, Maringá, PR, Brasil
| | - Jean Henrique da Silva Rodrigues
- Programa de Pós Graduação em Ciências Biológicas—Biologia Celular e Molecular, Universidade Estadual de Maringá, Maringá, PR, Brasil
| | - Tania Ueda-Nakamura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brasil
| | - Celso Vataru Nakamura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brasil
- Programa de Pós Graduação em Ciências Biológicas—Biologia Celular e Molecular, Universidade Estadual de Maringá, Maringá, PR, Brasil
| | - Valdecir Farias Ximenes
- Departamento de Química, Faculdade de Ciências, Universidade Estadual Paulista Julio de Mesquita Filho, Bauru, SP, Brasil
| | - Sueli de Oliveira Silva
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brasil
- * E-mail:
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Volpato H, Desoti VC, Valdez RH, Ueda-Nakamura T, Silva SDO, Sarragiotto MH, Nakamura CV. Mitochondrial Dysfunction Induced by N-Butyl-1-(4-Dimethylamino)Phenyl-1,2,3,4-Tetrahydro-β-Carboline-3-Carboxamide Is Required for Cell Death of Trypanosoma cruzi. PLoS One 2015; 10:e0130652. [PMID: 26086449 PMCID: PMC4472351 DOI: 10.1371/journal.pone.0130652] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 01/22/2015] [Accepted: 05/22/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Chagas' disease is caused by the protozoan Trypanosoma cruzi and affects thousands of people worldwide. The available treatments are unsatisfactory, and new drugs must be developed. Our group recently reported the trypanocidal activity of the synthetic compound N-butyl-1-(4-dimethylamino)phenyl-1,2,3,4-tetrahydro-β-carboline-3-carboxamide (C4), but the mechanism of action of this compound was unclear. METHODOLOGY/PRINCIPAL FINDINGS We investigated the mechanism of action of C4 against epimastigote and trypomastigote forms of T. cruzi. The results showed alterations in mitochondrial membrane potential, alterations in cell membrane integrity, an increase in the formation of reactive oxygen species, phosphatidylserine exposure, a reduction of cell volume, DNA fragmentation, and the formation of lipid inclusions. CONCLUSION/SIGNIFICANCE These finding suggest that mitochondria are a target of C4, the dysfunction of which can lead to different pathways of cell death.
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Affiliation(s)
- Hélito Volpato
- Programa de Pós-Graduação em Ciências Biológicas—Biologia Celular e Molecular, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Vânia Cristina Desoti
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
| | | | - Tânia Ueda-Nakamura
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
| | - Sueli de Oliveira Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
| | | | - Celso Vataru Nakamura
- Programa de Pós-Graduação em Ciências Biológicas—Biologia Celular e Molecular, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Paraná, Brazil
- * E-mail:
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Desoti VC, Lazarin-Bidóia D, Sudatti DB, Pereira RC, Ueda-Nakamura T, Nakamura CV, de Oliveira Silva S. Additional evidence of the trypanocidal action of (-)-elatol on amastigote forms through the involvement of reactive oxygen species. Mar Drugs 2014; 12:4973-83. [PMID: 25257785 PMCID: PMC4178491 DOI: 10.3390/md12094973] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/25/2014] [Accepted: 04/23/2014] [Indexed: 02/07/2023] Open
Abstract
Chagas’ disease, a vector-transmitted infectious disease, is caused by the protozoa parasite Trypanosoma cruzi. Drugs that are currently available for the treatment of this disease are unsatisfactory, making the search for new chemotherapeutic agents a priority. We recently described the trypanocidal action of (−)-elatol, extracted from the macroalga Laurencia dendroidea. However, nothing has been described about the mechanism of action of this compound on amastigotes that are involved in the chronic phase of Chagas’ disease. The goal of the present study was to evaluate the effect of (−)-elatol on the formation of superoxide anions (O2•−), DNA fragmentation, and autophagy in amastigotes of T. cruzi to elucidate the possible mechanism of the trypanocidal action of (−)-elatol. Treatment of the amastigotes with (−)-elatol increased the formation of O2•− at all concentrations of (−)-elatol assayed compared with untreated parasites. Increased fluorescence was observed in parasites treated with (−)-elatol, indicating DNA fragmentation and the formation of autophagic compartments. The results suggest that the trypanocidal action of (−)-elatol might involve the induction of the autophagic and apoptotic death pathways triggered by an imbalance of the parasite’s redox metabolism.
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Affiliation(s)
- Vânia Cristina Desoti
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Danielle Lazarin-Bidóia
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Daniela Bueno Sudatti
- Department of Marine Biology, Federal Fluminense University, P.O. Box 100644, Niteroi, Rio de Janeiro CEP 24001-970, Brazil.
| | - Renato Crespo Pereira
- Department of Marine Biology, Federal Fluminense University, P.O. Box 100644, Niteroi, Rio de Janeiro CEP 24001-970, Brazil.
| | - Tania Ueda-Nakamura
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Celso Vataru Nakamura
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Sueli de Oliveira Silva
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
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Lazarin-Bidóia D, Desoti VC, Ueda-Nakamura T, Dias Filho BP, Nakamura CV, Silva SO. Further evidence of the trypanocidal action of eupomatenoid-5: confirmation of involvement of reactive oxygen species and mitochondria owing to a reduction in trypanothione reductase activity. Free Radic Biol Med 2013; 60:17-28. [PMID: 23376033 DOI: 10.1016/j.freeradbiomed.2013.01.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 01/11/2013] [Indexed: 02/08/2023]
Abstract
Our group assays natural products that are less toxic and more effective than available nitroheterocycles as promising therapeutic options for patients with Chagas disease. Our previous study reported the trypanocidal activity of eupomatenoid-5, a neolignan isolated from the leaves of Piper regnellii var. pallescens, against the three main parasitic forms of Trypanosoma cruzi. The present study further characterizes the biochemical and morphological alterations induced by this compound to elucidate the mechanisms of action involved in the cell death of T. cruzi. We show that eupomatenoid-5 induced oxidative imbalance in the three parasitic forms, especially trypomastigotes, reflected by a decrease in the activity of trypanothione reductase and increase in the formation of reactive oxygen species (ROS). A reduction of mitochondrial membrane potential was then triggered, further impairing the cell redox system through the production of more ROS and reactive nitrogen species. Altogether, these effects led to oxidative stress, reflected by lipid peroxidation and DNA fragmentation. These alterations are key events in the induction of parasite death through various pathways, including apoptosis, necrosis, and autophagy.
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Affiliation(s)
- D Lazarin-Bidóia
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brasil
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Veiga-Santos P, Desoti VC, Miranda N, Ueda-Nakamura T, Dias-Filho BP, Silva SO, Cortez DAG, de Mello JCP, Nakamura CV. The natural compounds piperovatine and piperlonguminine induce autophagic cell death on Trypanosoma cruzi. Acta Trop 2013; 125:349-56. [PMID: 23228524 DOI: 10.1016/j.actatropica.2012.11.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [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: 06/04/2012] [Revised: 11/27/2012] [Accepted: 11/29/2012] [Indexed: 02/07/2023]
Abstract
The currently available treatments for Chagas disease show limited therapeutic potential and are associated with serious side effects. Our group has been attempting to find alternative drugs isolated from natural products as a potential source of pharmacological agents against Trypanosoma cruzi. Here, we demonstrate the antitrypanosomal activity of the amides piperovatine and piperlonguminine isolated from Piper ovatum against epimastigotes and intracellular amastigotes. We also investigated the mechanisms of action of these compounds on extracellular amastigote and epimastigote forms of T. cruzi. These amides showed low toxicity to LLCMK(2) mammalian cells. By using transmission and scanning electron microscopy, we observed that the compounds caused severe alterations in T. cruzi. These alterations were mainly located in plasma membrane and mitochondria. Furthermore, the study of treated parasites labeled with Rh123, PI and MDC corroborate with our TEM data. These mitochondrial dysfunctions induced by the amides might trigger biochemical alterations that lead to cell death. Altogether, our data evidence a possible autophagic process.
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Affiliation(s)
- Phercyles Veiga-Santos
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Universidade Estadual de Maringá, Paraná, Brazil
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Desoti VC, Lazarin-Bidóia D, Sudatti DB, Pereira RC, Alonso A, Ueda-Nakamura T, Dias Filho BP, Nakamura CV, Silva SDO. Trypanocidal action of (-)-elatol involves an oxidative stress triggered by mitochondria dysfunction. Mar Drugs 2012; 10:1631-1646. [PMID: 23015766 PMCID: PMC3447331 DOI: 10.3390/md10081631] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 07/08/2012] [Accepted: 07/27/2012] [Indexed: 11/17/2022] Open
Abstract
Natural compounds have shown good potential for the discovery of new chemotherapeutics for the treatment of Chagas' disease. Recently, our group reported the effective trypanocidal activity of (-)-elatol, extracted from the red macroalgae Laurencia dendroidea present in the Brazilian coast against Trypanosoma cruzi. However, the mechanism of action of this compound has remained unclear. There are only hypotheses concerning its action on mitochondrial function. Here, we further investigated the mechanisms of action of (-)-elatol on trypomastigotes of T. cruzi. For this, we evaluated some biochemical alterations in trypomastigotes treated with (-)-elatol. Our results show that (-)-elatol induced depolarization of the mitochondrial membrane, an increase in the formation of mitochondrial superoxide anion and loss of cell membrane and DNA integrity. Additionally, (-)-elatol induced formation of autophagic vacuoles and a decrease in cell volume. All together, these results suggest that the trypanocidal action of (-)-elatol involves multiple events and mitochondria might be the initial target organelle. Our hypothesis is that the mitochondrial dysfunction leads to an increase of ROS production through the electron transport chain, which affects cell membrane and DNA integrity leading to different types of parasite death.
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Affiliation(s)
- Vânia Cristina Desoti
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil; (V.C.D.); (D.L.-B.); (T.U.-N.); (B.P.D.F.); (C.V.N.)
| | - Danielle Lazarin-Bidóia
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil; (V.C.D.); (D.L.-B.); (T.U.-N.); (B.P.D.F.); (C.V.N.)
| | - Daniela Bueno Sudatti
- Department of Marine Biology, Federal Fluminense University, PO Box 100644, CEP 24001-970, Niteroi, Rio de Janeiro, Brazil; (D.B.S.); (R.C.P.)
| | - Renato Crespo Pereira
- Department of Marine Biology, Federal Fluminense University, PO Box 100644, CEP 24001-970, Niteroi, Rio de Janeiro, Brazil; (D.B.S.); (R.C.P.)
| | - Antonio Alonso
- Institute of Physics, Federal University of Goias, CEP 74001-970, Goiania, Goias, Brazil;
| | - Tania Ueda-Nakamura
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil; (V.C.D.); (D.L.-B.); (T.U.-N.); (B.P.D.F.); (C.V.N.)
- Department of Basic Health Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil
| | - Benedito Prado Dias Filho
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil; (V.C.D.); (D.L.-B.); (T.U.-N.); (B.P.D.F.); (C.V.N.)
- Department of Basic Health Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil
| | - Celso Vataru Nakamura
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil; (V.C.D.); (D.L.-B.); (T.U.-N.); (B.P.D.F.); (C.V.N.)
- Department of Basic Health Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil
| | - Sueli de Oliveira Silva
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil; (V.C.D.); (D.L.-B.); (T.U.-N.); (B.P.D.F.); (C.V.N.)
- Department of Basic Health Sciences, State University of Maringa, Colombo Avenue 5790, CEP 87020-900, Maringa, Parana, Brazil
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