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Santos Ferreira DA, de Castro Levatti EV, Santa Cruz LM, Costa AR, Migotto ÁE, Yamada AY, Camargo CH, Christodoulides M, Lago JHG, Tempone AG. Saturated Iso-Type Fatty Acids from the Marine Bacterium Mesoflavibacter zeaxanthinifaciens with Anti-Trypanosomal Potential. Pharmaceuticals (Basel) 2024; 17:499. [PMID: 38675459 DOI: 10.3390/ph17040499] [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: 02/19/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Chagas disease is a Neglected Tropical Disease with limited and ineffective therapy. In a search for new anti-trypanosomal compounds, we investigated the potential of the metabolites from the bacteria living in the corals and sediments of the southeastern Brazilian coast. Three corals, Tubastraea coccinea, Mussismilia hispida, Madracis decactis, and sediments yielded 11 bacterial strains that were fully identified by MALDI-ToF/MS or gene sequencing, resulting in six genera-Vibrio, Shewanella, Mesoflavibacter, Halomonas, Bacillus, and Alteromonas. To conduct this study, EtOAc extracts were prepared and tested against Trypanosoma cruzi. The crude extracts showed IC50 values ranging from 15 to 51 μg/mL against the trypomastigotes. The bacterium Mesoflavibacter zeaxanthinifaciens was selected for fractionation, resulting in an active fraction (FII) with IC50 values of 17.7 μg/mL and 23.8 μg/mL against the trypomastigotes and amastigotes, respectively, with neither mammalian cytotoxicity nor hemolytic activity. Using an NMR and ESI-HRMS analysis, the FII revealed the presence of unsaturated iso-type fatty acids. Its lethal action was investigated, leading to a protein spectral profile of the parasite altered after treatment. The FII also induced a rapid permeabilization of the plasma membrane of the parasite, leading to cell death. These findings demonstrate that these unsaturated iso-type fatty acids are possible new hits against T. cruzi.
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Affiliation(s)
| | | | - Lucas Monteiro Santa Cruz
- Centre of Organic Contaminants, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 355, Sao Paulo 01246-000, SP, Brazil
| | - Alan Roberto Costa
- Centre of Organic Contaminants, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 355, Sao Paulo 01246-000, SP, Brazil
| | - Álvaro E Migotto
- Centre for Marine Biology, Universidade de São Paulo, Rodovia Doutor Manoel Hipólito do Rego, km. 131,5, Pitangueiras, Sao Sebastiao 11612-109, SP, Brazil
| | - Amanda Yaeko Yamada
- Centre of Bacteriology, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, Sao Paulo 01246-000, SP, Brazil
| | - Carlos Henrique Camargo
- Centre of Bacteriology, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, Sao Paulo 01246-000, SP, Brazil
| | - Myron Christodoulides
- Molecular Microbiology, School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
| | - João Henrique G Lago
- Centre of Natural Sciences and Humanities, Universidade Federal do ABC, Sao Paulo 09210-580, SP, Brazil
| | - Andre Gustavo Tempone
- Pathophysiology Laboratory, Instituto Butantan, Av. Vital Brazil, 1500, Sao Paulo 05503-900, SP, Brazil
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de M Gonçalves M, Totini CH, De Castro EV, Albuquerque V, Antar GM, Tempone AG, Lago JHG. Lignans Isolated from Piper truncatum Act as New Potent Antitrypanosomal Compounds. Chem Biodivers 2024:e202400547. [PMID: 38507773 DOI: 10.1002/cbdv.202400547] [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: 03/04/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 03/22/2024]
Abstract
The hexane extract from twigs of Piper truncatum Vell (Piperaceae) displayed activity against Trypanosoma cruzi and was subjected to chromatographic steps to afford six dibenzylbutyrolactolic lignans, being four knowns: cubebin (1), (-)-9α-O-methylcubebin (2), (+)-9β-O-methylcubebinin (3) and 3,4-dimethoxy-3,4-demethylenedioxycubebin (4) as well as two new, named truncatin A (5) and B (6). Initially, in vitro activity against trypomastigotes was evaluated and compounds 1, 4 and 6 exhibited EC50 values of 41.6, 21.0 and 39.6 μM, respectively. However, when tested against amastigotes, the relevant clinical form in the chronic phase of Chagas disease, compounds 1-6 displayed activities with EC50 values ranging from 1.6 to 13.7 μM. In addition, the mammalian cytotoxicity of compounds 1-6 was evaluated against murine fibroblasts (NCTC). Compounds 2, 3 and 4 exhibited reduced toxicity against NCTC cells (CC50>200 μM), resulting in SI values of>21.9,>14.5 and>121.9, respectively. Compound 4 showed the highest potency with an SI value twice superior to that determined by the standard drug benznidazole (SI>54.6) against the intracellular amastigotes. These data suggest that lignan 4 can be considered a possible scaffold for designing a new drug candidate for Chagas disease.
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Affiliation(s)
- Marina de M Gonçalves
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
| | - Carlos H Totini
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
| | | | | | - Guilherme M Antar
- Department of Agricultural and Biological Sciences, Federal University of Espirito Santo, 29932-540, São Matheus, ES, Brazil
| | | | - João Henrique G Lago
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
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3
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Oliveira LVF, Camilo FF, Soares MG, Cajas RA, Cirino ME, de Moraes J, Lago JHG. In Situ Preparation of Dehydrodieugenol-Loaded Silver Nanoparticles and their Antischistosomal Activity. Chem Biodivers 2024; 21:e202301929. [PMID: 38278761 DOI: 10.1002/cbdv.202301929] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024]
Abstract
Schistosomiasis is a major neglected disease that imposes a substantial worldwide health burden, affecting approximately 250 million people globally. As praziquantel is the only available drug to treat schistosomiasis, there is a critical need to identify new anthelmintic compounds, particularly from natural sources. To enhance the activity of different natural products, one potential avenue involves its combination with silver nanoparticles (AgNP). Based on this approach, a one-step green method for the in situ preparation of dehydrodieugenol (DHDG) by oxidation coupling reaction using silver and natural eugenol is presented. AgNP formation was confirmed by UV-Vis spectroscopy due to the appearance of the surface plasmon resonance (SPR) band at 430 nm which is characteristic of silver nanoparticles. The nanoparticles were spherical with sizes in the range of 40 to 50 nm. Bioassays demonstrated that the silver nanoparticles loaded with DHDG exhibited significant anthelmintic activity against Schistosoma mansoni adult worms without toxicity to mammalian cells and an in vivo animal model (Caenorhabditis elegans), contributing to the development of new prototypes based on natural products for the treatment of schistosomiasis.
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Affiliation(s)
- Larissa V F Oliveira
- Center for Natural and Human Sciences, Federal University of ABC, SP-09210-580, Santo Andre, Brazil
| | - Fernanda F Camilo
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, SP-09913-030, Diadema, Brazil
| | - Marisi G Soares
- Institute of Chemistry, Federal University of Alfenas, MG-37130-001, Alfenas, Brazil
| | - Rayssa A Cajas
- Research Center for Neglected Diseases, Guarulhos University, SP-07030-010, Guarulhos, Brazil
| | - Maria E Cirino
- Research Center for Neglected Diseases, Guarulhos University, SP-07030-010, Guarulhos, Brazil
| | - Josué de Moraes
- Research Center for Neglected Diseases, Guarulhos University, SP-07030-010, Guarulhos, Brazil
| | - João Henrique G Lago
- Center for Natural and Human Sciences, Federal University of ABC, SP-09210-580, Santo Andre, Brazil
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Parolin GA, Vital VG, de Vasconcellos SP, Lago JHG, Péres LO. Thymol as Starting Material for the Development of a Biobased Material with Enhanced Antimicrobial Activity: Synthesis, Characterization, and Potential Application. Molecules 2024; 29:1010. [PMID: 38474522 DOI: 10.3390/molecules29051010] [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: 09/29/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 03/14/2024] Open
Abstract
A biobased material, polythymol (PTF), was prepared using thymol, a monoterpene obtained from the essential oil of Thymus vulgaris (Lamiaceae), as a starting material with the aim of enhancing the antimicrobial properties of this natural product. Initially, different processes were performed in order to optimize the reaction conditions to obtain a macromolecule with a high purity and yield. PTF was characterized using different techniques, such as NMR, infrared, UV-Vis, and thermogravimetric analyses. The antimicrobial activity of both PTF and thymol was evaluated against different microorganisms, including S. aureus, E. coli, P. aeruginosa, and C. albicans. The obtained MIC values showed a higher potential for PTF than the monomer thymol-for example, against S. aureus (500 and 31.5 µg·mL-1 for thymol and PTF, respectively). Therefore, the obtained results show that the polymerization of thymol afforded more active biomaterial than the starting monomeric antimicrobial compound (thymol), suggesting that PTF is an important biomaterial.
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Affiliation(s)
- Giovana A Parolin
- Laboratory of Hybrid Materials, Chemistry Department, Federal University of São Paulo, Diadema 09913-030, SP, Brazil
| | - Vitor G Vital
- Multidisciplinary Laboratory of Health and Environment Sciences, Department of Pharmaceutical Sciences, Federal University of São Paulo, Diadema 09913-030, SP, Brazil
| | - Suzan P de Vasconcellos
- Multidisciplinary Laboratory of Health and Environment Sciences, Department of Pharmaceutical Sciences, Federal University of São Paulo, Diadema 09913-030, SP, Brazil
| | - João Henrique G Lago
- Laboratory of Chemical Biology, Center for Natural and Human Sciences, Federal University of ABC, Santo Andre 09210-580, SP, Brazil
| | - Laura O Péres
- Laboratory of Hybrid Materials, Chemistry Department, Federal University of São Paulo, Diadema 09913-030, SP, Brazil
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Silva ML, Sales FS, Levatti EVC, Antar GM, Tempone AG, Lago JHG, Jerz G. Evaluation of Anti- Trypanosoma cruzi Activity of Chemical Constituents from Baccharis sphenophylla Isolated Using High-Performance Countercurrent Chromatography. Molecules 2023; 29:212. [PMID: 38202795 PMCID: PMC10780275 DOI: 10.3390/molecules29010212] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 01/12/2024] Open
Abstract
Endemic in 21 countries, Chagas disease, also known as American Trypanosomiasis, is a neglected tropical disease (NTD) caused by the protozoan parasite Trypanosoma cruzi. The available drugs for the treatment of this disease, benznidazole and nifurtimox, are outdated and display severe side effects. Thus, the discovery of new drugs is crucial. Based on our continuous studies aiming towards the discovery of natural products with anti-T. cruzi potential, the MeOH extract from aerial parts of Baccharis sphenophylla Dusén ex. Malme (Asteraceae) displayed activity against this parasite and was subjected to high-performance countercurrent chromatography (HPCCC), to obtain one unreported syn-labdane diterpene - sphenophyllol (1) - as well as the known compounds gaudichaudol C (2), ent-kaurenoic acid (3), hispidulin (4), eupafolin (5), and one mixture of di-O-caffeoylquinic acids (6-8). Compounds 1-8 were characterized by analysis of nuclear magnetic resonance (NMR) and mass spectrometry (MS) data. When tested against trypomastigote forms, isolated labdane diterpenes 1 and 2 displayed potent activity, with EC50 values of 20.1 μM and 2.9 μM, respectively. The mixture of chlorogenic acids 6-8, as well as the isolated flavones 4 and 5, showed significant activity against the clinically relevant amastigotes, with EC50 values of 24.9, 12.8, and 2.7 μM, respectively. Nonetheless, tested compounds 1-8 displayed no cytotoxicity against mammalian cells (CC50 > 200 μM). These results demonstrate the application of HPCCC as an important tool to isolate bioactive compounds from natural sources, including the antitrypanosomal extract from B. sphenophylla, allowing for the development of novel strategic molecular prototypes against tropical neglected diseases.
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Affiliation(s)
- Matheus L. Silva
- Center for Natural Sciences and Humanities, Federal University of ABC, Santo André 09210-580, Brazil; (M.L.S.); (F.S.S.)
| | - Felipe S. Sales
- Center for Natural Sciences and Humanities, Federal University of ABC, Santo André 09210-580, Brazil; (M.L.S.); (F.S.S.)
| | - Erica V. C. Levatti
- Laboratory of Pathophysiology, Butantan Institute, São Paulo 05508-040, Brazil; (E.V.C.L.); (A.G.T.)
| | - Guilherme M. Antar
- Department of Agrarian and Biological Sciences, Federal University of Espírito Santo, São Mateus 29932-540, Brazil;
| | - Andre G. Tempone
- Laboratory of Pathophysiology, Butantan Institute, São Paulo 05508-040, Brazil; (E.V.C.L.); (A.G.T.)
| | - João Henrique G. Lago
- Center for Natural Sciences and Humanities, Federal University of ABC, Santo André 09210-580, Brazil; (M.L.S.); (F.S.S.)
| | - Gerold Jerz
- Institute of Food Chemistry, Technical University of Braunschweig, 38106 Braunschweig, Germany
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Rocha V, Cajas RA, Andrade-de-Siqueira AI, Almeida RBP, Godoy-Silva J, Gonçalves MM, Lago JHG, de Moraes J. Evaluating the Antischistosomal Activity of Dehydrodieugenol B and Its Methyl Ether Isolated from Nectandra leucantha-A Preclinical Study against Schistosoma mansoni Infection. ACS Omega 2023; 8:40890-40897. [PMID: 37929107 PMCID: PMC10620922 DOI: 10.1021/acsomega.3c06111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/06/2023] [Indexed: 11/07/2023]
Abstract
Schistosomiasis, a parasitic disease affecting nearly 250 million individuals globally, poses a significant health challenge. With praziquantel being the sole available treatment and its limited efficacy in early stage infections, the identification of novel bioactive compounds becomes imperative. This study examines the potential of dehydrodieugenol B (1) and its methyl ether (2), derived from the leaves of the Brazilian Nectandra leucantha plant (Lauraceae), in combatting Schistosoma mansoni infections through a preclinical approach. Initially, compound 1 displayed noteworthy in vitro antiparasitic activity with an EC50 of 31.9 μM, showcasing low toxicity in mammalian cells and an in vivo animal model (Caenorhabditis elegans). Conversely, compound 2 exhibited no activity. In silico predictions pointed to favorable oral bioavailability and the absence of PAINS similarities. Subsequently, a single oral dose of 400 mg/kg of compound 1 or praziquantel was administered to mice infected with adult (patent infection) or immature parasites (prepatent infection). Remarkably, in prepatent infections, 1 resulted in a significant reduction (approximately 50%) in both worm and egg burden, while praziquantel reduced worm and egg numbers by 30%. The superior efficacy of dehydrodieugenol B (1) compared to praziquantel in premature infections holds the potential to advance the development of new molecular prototypes for schistosomiasis treatment.
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Affiliation(s)
- Vinicius
C. Rocha
- Instituto
de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema 09972-270, Brazil
| | - Rayssa A. Cajas
- Núcleo
de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo 07023-070, Brazil
| | | | - Roberto B. P. Almeida
- Departamento
de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - Julia Godoy-Silva
- Núcleo
de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo 07023-070, Brazil
| | - Marina M. Gonçalves
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Santo
André, São Paulo 09210-180, Brazil
| | - João Henrique G. Lago
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Santo
André, São Paulo 09210-180, Brazil
| | - Josué de Moraes
- Núcleo
de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo 07023-070, Brazil
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Londero VS, Rosa ME, Baitello JB, Costa-Silva TA, Cruz LMS, Tempone AG, Caseli L, Lago JHG. Barbellatanic acid, a new antitrypanosomal pseudo-disesquiterpenoid isolated from Nectandra barbellata, displayed interaction with protozoan cell membrane. Biochim Biophys Acta Biomembr 2023; 1865:184184. [PMID: 37301246 DOI: 10.1016/j.bbamem.2023.184184] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
As part of our ongoing studies involving the discovery of new natural prototypes with antiprotozoal activity against Trypanosoma cruzi from Brazilian plant species, the chromatographic fractionation of hexane extract from leaves of Nectandra barbellata afforded one new pseudo-disesquiterpenoid, barbellatanic acid. The structure of this compound was elucidated by NMR and HR-ESIMS data analysis. Barbellatanic acid displayed a trypanocidal effect with IC50 of 13.2 μM to trypomastigotes and no toxicity against NCTC cells (CC50 > 200 μM), resulting in an SI value higher than 15.1. The investigation of the lethal mechanism of barbellatanic acid in trypomastigotes, using both fluorescence microscopy and spectrofluorimetric analysis, revealed a time-dependent permeation of the plasma membrane. Based on these results, this compound was incorporated in cellular membrane models built with lipid Langmuir monolayers. The interaction of barbellatanic acid with the models was inferred by tensiometric, rheological, spectroscopical, and morphological techniques, which showed that this compound altered the thermodynamic, viscoelastic, structural, and morphological properties of the film. Taking together, these results could be employed when this prodrug interacts with lipidic interfaces, such as protozoa membranes or liposomes for drug delivery systems.
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Affiliation(s)
- Vinicius S Londero
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09972-270 São Paulo, Brazil
| | - Matheus E Rosa
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09972-270 São Paulo, Brazil
| | - João B Baitello
- Division of Dasonomy, Forestry Institute, 02377-000 São Paulo, Brazil
| | - Thais A Costa-Silva
- Center for Natural and Human Sciences, Federal University of ABC, 09210-180 São Paulo, Brazil
| | - Lucas Monteiro S Cruz
- Organic Contaminants Nucleus - Contaminants Center, Adolfo Lutz Institute, 01246-902 São Paulo, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Adolfo Lutz Institute, 01246-902 São Paulo, Brazil
| | - Luciano Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09972-270 São Paulo, Brazil.
| | - João Henrique G Lago
- Center for Natural and Human Sciences, Federal University of ABC, 09210-180 São Paulo, Brazil.
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Totini CH, Umehara E, Reis IMA, Lago JHG, Branco A. Chemistry and Bioactivity of the Genus Persea - A Review. Chem Biodivers 2023; 20:e202300947. [PMID: 37539983 DOI: 10.1002/cbdv.202300947] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/05/2023]
Abstract
This review provides the first comprehensive appraisal of bioactive compounds and their biological activities in Persea species from 1950 to 2023. Relevant articles from reputable databases, including PubMed, Web of Science, Science Direct and Google Scholar were collected, leading to the isolation of about 141 metabolite compounds, mainly flavonoids, terpenoids, fatty alcohols, lignoids, and γ-lactone derivatives. These compounds exhibit diverse biological activities, including insecticidal, antifeedant, nematicidal, antibacterial, antifungal, antiviral, cytotoxic, anti-inflammatory, and antioxidant properties. The review emphasizes the significant chemical and pharmacological potential of different Persea species, encouraging further research in various fields and medicine. Valuable insights into potential applications of Persea plants are provided.
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Affiliation(s)
- Carlos H Totini
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
| | - Eric Umehara
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
| | - Isabella M A Reis
- Departamento de Saúde, Universidade Estadual de Feira de Santana, 44036-900, Feira de Santana, BA, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
| | - Alexsandro Branco
- Departamento de Saúde, Universidade Estadual de Feira de Santana, 44036-900, Feira de Santana, BA, Brazil
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9
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Thevenard F, Brito IA, Costa-Silva TA, Tempone AG, Lago JHG. Enyne acetogenins from Porcelia macrocarpa displayed anti-Trypanosoma cruzi activity and cause a reduction in the intracellular calcium level. Sci Rep 2023; 13:10254. [PMID: 37355735 PMCID: PMC10290671 DOI: 10.1038/s41598-023-37520-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/22/2023] [Indexed: 06/26/2023] Open
Abstract
Natural products are a promising source of new compounds with a wide spectrum of pharmacological properties, including antiprotozoal activities. Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, is one of several neglected tropical diseases with reduced options for treatment, which presents limitations such as toxicity and ineffectiveness in the chronic stage of the disease. Aiming to investigate the Brazilian flora for the discovery of new anti-T. cruzi compounds, the MeOH extract from Porcelia macrocarpa R.E. Fries (Annonaceae) fruit peels displayed potent activity against trypomastigotes and intracellular amastigotes and was subjected to bioactivity-guided fractionation. Using different chromatographic steps, a fraction composed of a mixture of four new chemically related acetogenins was obtained. The compounds were characterized as (2S*,3R*,4R*)-3-hydroxy-4-methyl-2-(n-octadeca-13',17'-dien-11'-inil)butanolide (1), (2S*,3R*,4R*)-3-hydroxy-4-methyl-2-(n-eicosa-13',19'-dien-11'-inil)butanolide (2), (2S*,3R*,4R*)-3-hydroxy-4-methyl-2-(n-octadec-13'-en-11'-inil)butanolide (3), and (2S*,3R*,4R*)-3-hydroxy-4-methyl-2-(n-eicosa-13'-en-11'-inil)butanolide (4) by NMR analysis and UHPLC/ESI-HRMS data. The mixture of compounds 1-4, displayed an EC50 of 4.9 and 2.5 µg/mL against trypomastigote and amastigote forms of T. cruzi, respectively, similar to the standard drug benznidazole (EC50 of 4.8 and 1.4 µg/mL). Additionally, the mixture of compounds 1-4 displayed no mammalian toxicity for murine fibroblasts (CC50 > 200 µg/mL), resulting in a SI > 40.8 and > 83.3 against trypomastigotes and amastigotes, respectively. Based on these results, the mechanism of action of this bioactive fraction was investigated. After a short-time incubation with the trypomastigotes, no alterations in the cell membrane permeability were observed. However, it was verified a decrease in the intracellular calcium of the parasites, without significant pH variations of the acidocalcisomes. The intracellular damages were followed by an upregulation of the reactive oxygen species and ATP, but no depolarization effects were observed in the mitochondrial membrane potential. These data suggest that the mixture of compounds 1-4 caused an irreversible oxidative stress in the parasites, leading to death. If adequately studied, these acetogenins can open new insights for the discovery of new routes of death in T. cruzi.
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Affiliation(s)
- Fernanda Thevenard
- Centre for Natural and Human Sciences, Federal University of ABC, São Paulo, Brazil
| | - Ivanildo A Brito
- Centre for Natural and Human Sciences, Federal University of ABC, São Paulo, Brazil
| | - Thais A Costa-Silva
- Centre for Natural and Human Sciences, Federal University of ABC, São Paulo, Brazil
- SENAI Institute of Innovation in Biotechnology, São Paulo, 01130-000, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, Brazil.
| | - João Henrique G Lago
- Centre for Natural and Human Sciences, Federal University of ABC, São Paulo, Brazil.
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Leão LPMO, de B Vieira N, Oliveira PPS, Chagas-Paula DA, Soares MG, Souza TB, Baldim JL, Costa-Silva TA, Tempone AG, Dias DF, Lago JHG. Structure-activity relationship study of antitrypanosomal analogues of gibbilimbol B using multivariate analysis and computation-aided drug design. Bioorg Med Chem Lett 2023; 83:129190. [PMID: 36805048 DOI: 10.1016/j.bmcl.2023.129190] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 02/21/2023]
Abstract
Gibbilimbol B and analogues were isolated from the Brazilian plant Piper malacophyllum and displayed activity against trypomastigote forms of Trypanosoma cruzi as well as reduced toxicity against NCTC cells. These results stimulated the preparation of a series of 24 chemically related analogues to study the potential of these compounds against T. cruzi trypomastigotes and explore structure-activity relationships. Initially, 12 compounds were planned, maintaining the same extension of the linear side chain of gibbilimbol B and unsaturation on the C-4 position but changing the functional groups - ester and amide - and variating the substituent at the p-position in the aromatic ring. Other 12 compounds were prepared using a branched side chain containing an ethyl group at the C-2 position. Overall, these structurally-related analogues demonstrated promising activity against trypomastigote forms (EC50 < 20 μM) and no mammalian cytotoxicity to fibroblasts (CC50 > 200 μM). Using multivariate statistics and machine learning analysis, aspects associated with structure/activity were related to their three-dimensional structure and, mainly, to the substituents on the aromatic ring. Obtained results suggested that the presence of t-butyl or nitro groups at p-position with appropriate side chains causes an alteration in the electron topological state, Van der Waals volumes, surface areas, and polarizabilities of tested compounds which seem to be essential for biological activity against T. cruzi parasites.
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Affiliation(s)
- Luiz P M O Leão
- Institute of Chemistry, Federal University of Alfenas, Minas Gerais 37130-001, Brazil
| | - Nátalie de B Vieira
- Institute of Chemistry, Federal University of Alfenas, Minas Gerais 37130-001, Brazil
| | - Paula P S Oliveira
- Institute of Chemistry, Federal University of Alfenas, Minas Gerais 37130-001, Brazil
| | | | - Marisi G Soares
- Institute of Chemistry, Federal University of Alfenas, Minas Gerais 37130-001, Brazil
| | - Thiago B Souza
- Pharmacy School, Federal University of Ouro Preto, Minas Gerais 35400-000, Brazil
| | - João L Baldim
- Federal Institute of Education, Science and Technology of South of Minas Gerais, Minas Gerais 37890-000, Brazil
| | | | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo 01246-902, Brazil
| | - Danielle F Dias
- Institute of Chemistry, Federal University of Alfenas, Minas Gerais 37130-001, Brazil.
| | - João Henrique G Lago
- Center of Natural and Human Sciences, Federal University of ABC, São Paulo 09210-580, Brazil.
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11
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Souza DCS, Neves GM, Mello LP, Bertolin LR, Antar GM, Favero OA, Buturi FO, Romoff P, Lago JHG, Ferreira EA. Flavonols, lignans and diacetylenes from leaves of Hydrocotyle leucocephala Cham. & Schltdl. and aerial parts of H. bonariensis Comm. ex Lam. BIOCHEM SYST ECOL 2023. [DOI: 10.1016/j.bse.2022.104547] [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: 11/27/2022]
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12
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Ferreira JS, de Brito AL, Paz ST, Barbosa HDM, Vieira JRC, Quixabeira CMT, Gomes DA, Ramirez PNL, de Sousa FS, Lago JHG, Lira EC. Acute and sub-acute toxicity study of ethanol extract from Nectandra leucantha Nees & Mart. (Lauraceae) barks. Drug Chem Toxicol 2023; 46:181-188. [PMID: 34965819 DOI: 10.1080/01480545.2021.2015862] [Citation(s) in RCA: 1] [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: 02/07/2023]
Abstract
Nectandra leucantha has been used in traditional medicine. Several metabolites isolated from N. leucantha extracts displayed immunomodulatory, antileishmanial properties, but the determination of the toxicological profile in mammals has not previously been performed. In this study, the ethanol extract from N. leucantha barks (EENl) was characterized by HPLC/HRESIMS. To study acute toxicity, female mice received EENl in a single dose of 100, 300, 1000, or 2000 mg/kg bw. Later, sub-acute toxicity was introduced in female and male mice by oral gavage at 100, 500 or 1000 mg/kg bw for 28 consecutive days. Hematological and biochemical profiles from the blood as well as histological analysis from the liver and kidney were performed. The HPLC/HRESIMS analysis of the EENl revealed the presence of six neolignans chemically related to dehydrodieugenol B. In the oral acute and sub-chronic studies, EENl did not produce in all doses evaluated any alteration in behavior, biochemical, hematological, body weight gain and food intake or sudden death in Swiss mice. In addition, histopathological data did not reveal any disturbance in liver and kidney morphology after 28 days of EENl treatment. Our results indicate that EENl at dosage levels up to 2000 mg/kg bw is non-toxic and can be considered safe for mammals.
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Affiliation(s)
- July Silva Ferreira
- Department of Physiology and Pharmacology, Center of Biological Sciences, Federal University of Pernambuco, Pernambuco, Brazil
| | - Alanne Lucena de Brito
- Department of Physiology and Pharmacology, Center of Biological Sciences, Federal University of Pernambuco, Pernambuco, Brazil
| | - Silvana Tavares Paz
- Department of Histology and Embryology, Center of Biological Sciences, Federal University of Pernambuco, Pernambuco, Brazil
| | - Humberto de Moura Barbosa
- Department of Physiology and Pharmacology, Center of Biological Sciences, Federal University of Pernambuco, Pernambuco, Brazil
| | | | - Carla Mirele Tabósa Quixabeira
- Department of Physiology and Pharmacology, Center of Biological Sciences, Federal University of Pernambuco, Pernambuco, Brazil
| | - Dayane Aparecida Gomes
- Department of Physiology and Pharmacology, Center of Biological Sciences, Federal University of Pernambuco, Pernambuco, Brazil
| | - Pamela Noemy L Ramirez
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - Fernanda S de Sousa
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, São Paulo, Brazil
| | - Eduardo Carvalho Lira
- Department of Physiology and Pharmacology, Center of Biological Sciences, Federal University of Pernambuco, Pernambuco, Brazil
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13
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de Castro Levatti EV, Costa-Silva TA, Morais TR, Fernandes JPS, Lago JHG, Tempone AG. Lethal action of Licarin A derivatives in Leishmania (L.) infantum: Imbalance of calcium and bioenergetic metabolism. Biochimie 2022; 208:141-150. [PMID: 36586562 DOI: 10.1016/j.biochi.2022.12.018] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
Natural metabolites present an extraordinary chemo-diversity and have been used as the inspiration for new drugs. Considering the need for new treatments against the neglected parasitic disease leishmaniasis, three semi-synthetic derivatives of natural neolignane licarin A were prepared: O-acetyl (1a), O-allyl (1b), and 5-allyl (1c). Using an ex vivo assay, compounds 1a, 1b, and 1c showed activity against the intracellular amastigotes of Leishmania (L.) infantum, with IC50 values of 9, 13, and 10 μM, respectively. Despite no induction of hemolytic activity, only compound 1b resulted in mammalian cytotoxicity (CC50 = 64 μM). The most potent compounds (1a and 1c) resulted in selectivity indexes >18. The mechanism of action of compound 1c was evaluated by fluorescent/luminescent based techniques and MALDI-TOF/MS. After a short incubation period, increased levels of the cytosolic calcium were observed in the parasites, with alkalinization of the acidocalcisomes. Compound 1c also induced mitochondrial hyperpolarization, resulting in decreased levels of ATP without altering the reactive oxygen species (ROS). Neither plasma membrane damages nor DNA fragmentation were observed after the treatment, but a reduction in the cellular proliferation was detected. Using MALDI-TOF/MS, mass spectral alterations of promastigote proteins were observed when compared to untreated and miltefosine-treated groups. This chemically modified neolignan induced lethal alterations of the bioenergetic and protein metabolism of Leishmania. Future PKPD and animal efficacy studies are needed to optimize this promising natural-derived compound.
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Affiliation(s)
| | - Thais A Costa-Silva
- Centre of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - Thiago R Morais
- Centre of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - João Paulo S Fernandes
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, 09972-270, Brazil
| | - João Henrique G Lago
- Centre of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil.
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil.
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14
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Gonçalves GEG, Umehara E, Lago JHG, Caseli L. Incorporation of dehydrodieugenol, a neolignan isolated from Nectandra leucantha (Lauraceae), in lipid Langmuir monolayers as biomembrane models. Biochim Biophys Acta Biomembr 2022; 1864:184035. [PMID: 35987463 DOI: 10.1016/j.bbamem.2022.184035] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/05/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Dehydrodieugenol, a neolignan isolated from the Brazilian plant Nectandra leucantha (Lauraceae) with reported antiprotozoal and anticancer activity, was incorporated in Langmuir monolayers of selected lipids as cell membrane models, aiming to comprehend its action mechanism at the molecular level. The interaction of this compound with the lipids dipalmitoylphosphatidylcholine (DPPC), dipalmitoylphosphatidylethanolamine (DPPE), dipalmitoylphosphatidylserine (DPPS), and dipalmitoylphosphatidylglycerol (DPPG) was inferred through tensiometry, infrared spectroscopy, and Brewster angle microscopy. The interactions had different effects depending on the chemical nature of the lipid polar head, with expansion for DPPC monolayers, condensation for DPPE, and expansion (at low surface pressures) followed by the overlap of the isotherms (at high surface pressure values) for DPPS and DPPG. Effects caused by dehydrodieugenol in the negatively charged lipids were distinctive, which was also reflected in the hysteresis assays, surface potential-area isotherms, and rheological measurements. Infrared spectroscopy indicated that the drug interaction with the monolayer affects not only the polar groups, but also the acyl lipid chains for all lipids. These results pointed to the fact that the interaction of the drug with lipid monolayers at the air-water interface is modulated by the lipid composition, mainly considering the polar head of the lipids, as well as the hydrophobicity of the lipids and the drug. As negatively charged lipids pointed to distinctive interaction, we believe this can be related to the antiprotozoal and anticancer properties of the compound.
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Affiliation(s)
| | - Eric Umehara
- Federal University of ABC, Center of Natural and Human Sciences, Santo André, SP, Brazil
| | - João Henrique G Lago
- Federal University of ABC, Center of Natural and Human Sciences, Santo André, SP, Brazil
| | - Luciano Caseli
- Department of Chemistry, Federal University of São Paulo, Diadema, SP, Brazil.
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15
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Galhardo TS, Ueno AK, Costa-Silva TA, Tempone AG, Carvalho WA, Fischmeister C, Bruneau C, Mandelli D, Lago JHG. New derivatives from dehydrodieugenol B and its methyl ether displayed high anti-Trypanosoma cruzi activity and cause depolarization of the plasma membrane and collapse the mitochondrial membrane potential. Chem Biol Interact 2022; 366:110129. [PMID: 36067825 DOI: 10.1016/j.cbi.2022.110129] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 05/23/2022] [Revised: 08/04/2022] [Accepted: 08/20/2022] [Indexed: 11/16/2022]
Abstract
In the present work, dehydrodieugenol B (1) and its methyl ether (2), isolated from Nectandra leucantha twigs, were used as starting material for the preparation of two new derivatives (1a and 2a) containing an additional methoxycarbonyl unit on allyl side chains. Compounds 1a and 2a demonstrated activity against trypomastigotes (EC50 values of 13.5 and 23.0 μM, respectively) and against intracellular amastigotes (EC50 values of 10.2 and 6.1 μM, respectively). Additionally, compound 2a demonstrated no mammalian cytotoxicity up to 200 μM whereas compound 1a exhibited a CC50 value of 139.8 μM. The mechanism of action studies of compounds 1a and 2a demonstrated a significant depolarization of the plasma membrane potential in trypomastigotes, followed by a mitochondrial membrane potential collapse. Neither calcium level nor reactive oxygen species alterations were observed after a short-time incubation. Considering the potential of compound 2a against T. cruzi and its simple preparation from the natural product 2, isolated from N. leucantha, this compound could be considered a new hit for future drug design studies in Chagas disease.
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Affiliation(s)
- Thalita S Galhardo
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil
| | - Anderson K Ueno
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, Diadema, 09972-270, Brazil
| | - Thaís A Costa-Silva
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil; SENAI Institute of Innovation in Biotechnology, 01130-000, São Paulo, Brazil
| | - André G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil
| | - Wagner A Carvalho
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil
| | - Cedric Fischmeister
- Institut des Sciences Chimiques de Rennes, University of Rennes, Rennes, UMR6226, 35000, France
| | - Christian Bruneau
- Institut des Sciences Chimiques de Rennes, University of Rennes, Rennes, UMR6226, 35000, France
| | - Dalmo Mandelli
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil.
| | - João Henrique G Lago
- Center of Natural and Human Sciences, Federal University of ABC, Santo Andre, 09210-580, Brazil.
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16
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Romanelli M, Amaral M, Thevenard F, Santa Cruz LM, Regasini LO, Migotto AE, Lago JHG, Tempone AG. Mitochondrial Imbalance of Trypanosoma cruzi Induced by the Marine Alkaloid 6-Bromo-2'-de- N-Methylaplysinopsin. ACS Omega 2022; 7:28561-28570. [PMID: 35990437 PMCID: PMC9387129 DOI: 10.1021/acsomega.2c03395] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/27/2022] [Indexed: 06/09/2023]
Abstract
Chagas disease, caused by Trypanosoma cruzi, affects seven million people worldwide and lacks effective treatments. Using bioactivity-guided fractionation, NMR, and electrospray ionization-high resolution mass spectrometry (ESI-HRMS) spectral analysis, the indole alkaloid 6-bromo-2'-de-N-methylaplysinopsin (BMA) was isolated and chemically characterized from the marine coral Tubastraea tagusensis. BMA was tested against trypomastigotes and intracellular amastigotes of T. cruzi, resulting in IC50 values of 62 and 5.7 μM, respectively, with no mammalian cytotoxicity. The mechanism of action studies showed that BMA induced no alterations in the plasma membrane permeability but caused depolarization of the mitochondrial membrane potential, reducing ATP levels. Intracellular calcium levels were also reduced after the treatment, which was associated with pH alteration of acidocalcisomes. Using matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF)/MS analysis, alterations of mass spectral signals were observed after treatment with BMA, suggesting a different mechanism from benznidazole. In silico pharmacokinetic-pharmacodynamic (PKPD) parameters suggested a drug-likeness property, supporting the promising usefulness of this compound as a new hit for optimizations.
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Affiliation(s)
- Maiara
M. Romanelli
- Centre
for Parasitology and Mycology, Adolfo Lutz
Institute, Av Dr Arnaldo 351, São Paulo, SP 01246-000, Brazil
| | - Maiara Amaral
- Centre
for Parasitology and Mycology, Adolfo Lutz
Institute, Av Dr Arnaldo 351, São Paulo, SP 01246-000, Brazil
| | - Fernanda Thevenard
- Centre
of Natural Sciences and Humanities, Federal
University of ABC (UFABC), Avenida dos Estados 5001, Santo Andre, SP 09210-580, Brazil
| | - Lucas M. Santa Cruz
- Department
of Organic Contaminants, Instituto Adolfo
Lutz, Av Dr Arnaldo 355, São Paulo, SP 01246-000, Brazil
| | - Luis O. Regasini
- Department
of Chemistry and Environmental Sciences, Institute of Biosciences,
Humanities and Exact Sciences, Universidade
Estadual Paulista, R. Cristóvão Colombo 2265, São
Jose do Rio Preto, SP 15054-000, Brazil
| | - Alvaro E. Migotto
- Centre
for Marine Biology, Universidade de São
Paulo, Rodovia Manoel Hypólito do Rego, Km 131, São Sebastião, São Paulo, SP 11600-000, Brazil
| | - João Henrique G. Lago
- Centre
of Natural Sciences and Humanities, Federal
University of ABC (UFABC), Avenida dos Estados 5001, Santo Andre, SP 09210-580, Brazil
| | - Andre G. Tempone
- Centre
for Parasitology and Mycology, Adolfo Lutz
Institute, Av Dr Arnaldo 351, São Paulo, SP 01246-000, Brazil
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17
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Silva Maiolini TC, Rosa W, de Oliveira Miranda D, Costa-Silva TA, Tempone AG, Pires Bueno PC, Ferreira Dias D, Aparecida Chagas de Paula D, Sartorelli P, Lago JHG, Gomes Soares M. Essential Oils from Different Myrtaceae Species from Brazilian Atlantic Forest Biome - Chemical Dereplication and Evaluation of Antitrypanosomal Activity. Chem Biodivers 2022; 19:e202200198. [PMID: 35485995 DOI: 10.1002/cbdv.202200198] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/26/2022] [Indexed: 11/12/2022]
Abstract
Chagas Disease (CD), caused by flagellate protozoan Trypanosoma cruzi, is a Neglected Tropical Diseases (NTD) that affect approximately seven million people worldwide with a restrict therapeutical arsenal. In the present study, the essential oils from 18 Myrtaceae species were extracted, chemically dereplicated, and evaluated in vitro against T. cruzi. From these, eight essential oils were considered promising (IC50 <10 μg/mL and SI>10) against the protozoan: Eugenia florida, E. acutata, E. widgrenii, Calyptranthes brasilienses, C. widgreniana, Plinia cauliflora, Campomanesia xanthocarpa, and Psidium guajava. Multivariate data analysis pointed out (E)-caryophyllene, α-humulene, limonene, caryophyllene oxide, and α-copaene playing an important role in the anti-T. cruzi activity. The obtained results demonstrated the potential of essential oils of Myrtaceae species as valuable sources of bioactive compounds against T. cruzi.
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Affiliation(s)
| | - Welton Rosa
- Institute of Chemistry, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil
| | | | - Thais A Costa-Silva
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, 01246-902, São Paulo, SP, Brazil
| | | | | | | | - Patricia Sartorelli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09913-030, Diadema, SP, Brazil
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
| | - Marisi Gomes Soares
- Institute of Chemistry, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil
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18
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Dos Santos AL, Amaral M, Hasegawa FR, Lago JHG, Tempone AG, Sartorelli P. Corrigendum: (-)-T-Cadinol, a Sesquiterpene Isolated From Casearia sylvestris (Salicaceae)-Displayed In Vitro Activity and Causes Hyperpolarization of the Membrane Potential of Trypanosoma cruzi. Front Pharmacol 2022; 13:865432. [PMID: 35370638 PMCID: PMC8964361 DOI: 10.3389/fphar.2022.865432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 01/31/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Augusto L Dos Santos
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| | - Maiara Amaral
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, Santo André, Brazil.,Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Flavia Rie Hasegawa
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Andre G Tempone
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, Santo André, Brazil
| | - Patricia Sartorelli
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
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19
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da Costa-Silva TA, Silva ML, Antar GM, Tempone AG, Lago JHG. Ent-kaurane diterpenes isolated from n-hexane extract of Baccharis sphenophylla by bioactivity-guided fractionation target the acidocalcisomes in Trypanosoma cruzi. Phytomedicine 2021; 93:153748. [PMID: 34628240 DOI: 10.1016/j.phymed.2021.153748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND In the present work the bioactivity-guided fractionation of n-hexane extract from aerial parts of Baccharis sphenophylla (Asteraceae) against trypomastigote forms of Trypanosoma cruzi was performed. PURPOSE To evaluate the antitrypanosomal potential of diterpenes ent‑kaurenoic (1), grandifloric (2). and 15β-tiglinoyloxy‑ent-kaurenoic (3) acids, isolated from n-hexane extract from aerial parts of B. sphenophylla, and elucidate their mechanism of action against T. cruzi. METHODS/STUDY DESIGN: n-Hexane and MeOH extracts from aerial parts of B. sphenophylla were prepared and caused, respectively, 100% and 50% of death of trypomastigote forms of T. cruzi. Based on these results, the n-hexane extract was subjected to bioactivity-guided fractionation procedures to afford three related ent‑kaurane diterpenoids (1-3). Based on spectrofluorometric assays and flow cytometry analysis, the mechanism of action of compounds 1 and 3 was investigated. RESULTS Compounds 1 and 3, isolated from n-hexane extract from aerial parts of B. sphenophylla, showed potent activity against parasites with EC50 values of 10.6 μM (SI > 18.8) and 2.4 μM (SI = 34.8), respectively. On the other hand, compound 2 was inactive against trypomastigotes. In mechanism of action studies using the fluorescent probe SYTOX Green, the plasma membrane permeability was unaltered after treatment with compounds 1 and 3, but compound 1 induced a depolarization of the plasma membrane electric potential (ΔΨp). No substantial alterations were observed in the mitochondria after treatment with compound 3, but a transient hyperpolarization of the mitochondrial membrane potential (ΔΨm) by compound 1. Despite the increased ATP levels induced by compounds 1 and 3, no alterations of ROS and Ca2+ levels were registered. However, both compounds promoted a time-dependent alkalinization of the acidocalcisomes, probably contributing to an osmotic imbalance of the cell. In silico physicochemical studies of compounds 1-3 suggested that lipophilicity and molecular complexity may play an important role in the antitrypanosomal activity. Moreover, no pan-assay interference compounds (PAINS) alerts were detected for compounds 1-3. CONCLUSION Obtained data indicated that the isolated ent‑kaurane diterpenes from n-hexane extract from aerial parts of B. sphenophylla, especially compound 3, could be considered interesting prototypes for further modifications aiming the discovery of new hits against T. cruzi.
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Affiliation(s)
- Thais A da Costa-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Paulo 09210-180, Brazil
| | - Matheus L Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Paulo 09210-180, Brazil
| | - Guilherme M Antar
- Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo 05508-090, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo 01246-902, Brazil.
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Paulo 09210-180, Brazil.
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20
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Dos Santos AL, Amaral M, Hasegawa FR, Lago JHG, Tempone AG, Sartorelli P. (-)-T-Cadinol-a Sesquiterpene Isolated From Casearia sylvestris (Salicaceae)-Displayed In Vitro Activity and Causes Hyperpolarization of the Membrane Potential of Trypanosoma cruzi. Front Pharmacol 2021; 12:734127. [PMID: 34803682 PMCID: PMC8595124 DOI: 10.3389/fphar.2021.734127] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/29/2021] [Indexed: 12/22/2022] Open
Abstract
Chagas disease is caused by the protozoan parasite Trypanosoma cruzi and affects 6-8 million people worldwide, mainly from developing countries. The treatment is limited to two approved nitro-derivatives, nifurtimox and benznidazole, with several side effects and reduced efficacy. Casearia sylvestris has been used in folk medicine as an antiseptic and cicatrizing in skin diseases. In the present work, the hexane phase from the MeOH extract from the leaves of Casearia sylvestris afforded a fraction composed by the sesquiterpene T-cadinol, which was chemically characterized by NMR and HRMS. The activity of T-cadinol was evaluated against T. cruzi, and IC50 values of 18 (trypomastigotes) and 15 (amastigotes) µM were established. The relation between the mammalian toxicity and the antiparasitic activity resulted in a selectivity index >12. Based on this promising activity, the mechanism of action was investigated by different approaches using fluorescent-based techniques such as plasma membrane permeability, plasma membrane electric potential, mitochondrial membrane electric potential, reactive oxygen species, and the intracellular calcium (Ca2+) levels. The obtained results demonstrated that T-cadinol affected neither the parasite plasma membrane nor the electric potential of the membrane. Nevertheless, this compound induced a mitochondrial impairment, resulting in a hyperpolarization of the membrane potential, with decreased levels of reactive oxygen species. No alterations in Ca2+ levels were observed, suggesting that T-cadinol may affect the single mitochondria of the parasite. This is the first report about the occurrence of T-cadinol in C. sylvestris, and our data suggest this sesquiterpene as an interesting hit compound for future optimizations in drug discovery studies for Chagas disease.
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Affiliation(s)
- Augusto L Dos Santos
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| | - Maiara Amaral
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, Santo André, Brazil.,Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Flavia Rie Hasegawa
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Andre G Tempone
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, Santo André, Brazil
| | - Patricia Sartorelli
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
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21
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Conserva GA, Costa-Silva TA, Quirós-Guerrero LM, Marcourt L, Wolfender JL, Queiroz EF, Tempone AG, Lago JHG. Kaempferol-3-O-α-(3,4-di-E-p-coumaroyl)-rhamnopyranoside from Nectandra oppositifolia releases Ca 2+ from intracellular pools of Trypanosoma cruzi affecting the bioenergetics system. Chem Biol Interact 2021; 349:109661. [PMID: 34537181 DOI: 10.1016/j.cbi.2021.109661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/07/2021] [Revised: 08/12/2021] [Accepted: 09/15/2021] [Indexed: 12/22/2022]
Abstract
Phytochemical analysis of EtOH extract from leaves of Nectandra oppositifolia afforded three flavonoids: kaempferol (1), kaempferol-3-O-α-rhamnopyranoside (2) and kaempferol-3-O-α-(3,4-di-E-p-coumaroyl)-rhamnopyranoside (3), which were characterized by NMR and ESI-HRMS. When tested against the protozoan parasite Trypanosoma cruzi, the etiologic agent of Chagas disease, flavonoids 1 and 3 were effective to kill the trypomastigotes with IC50 values of 32.0 and 6.7 μM, respectively, while flavonoid 2 was inactive. Isolated flavonoids 1-3 were also tested in mammalian fibroblasts and showed CC50 values of 24.8, 48.7 and 153.1 μM, respectively. Chemically, these results suggested that the free aglycone plays an important role in the bioactivity while the presence of p-coumaroyl unities linked in the rhamnoside unity is important to enhance the antitrypanosomal activity and reduce the mammalian cytotoxicity. The mechanism of cellular death was investigated for the most potent flavonoid 3 in the trypomastigotes using fluorescent and luminescent-based assays. It indicated that this compound induced neither permeabilization of the plasma membrane nor depolarization of the membrane electric potential. However, early time incubation (20 min) with flavonoid 3 resulted in a constant elevation of the Ca2+ levels inside the parasite. This effect was followed by a mitochondrial imbalance, leading to a hyperpolarization and depolarization of the mitochondrial membrane potential, with reduction of the ATP levels. During this time, the levels of reactive oxygen species levels (ROS) were unaltered. The leakage of Ca2+ from the intracellular pools can affect the bioenergetics system of T. cruzi, leading to the parasite death. Therefore, flavonoid 3 can be a useful tool for future studies against T. cruzi parasites.
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Affiliation(s)
- Geanne A Conserva
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP, 09210-180, Brazil.
| | - Thais A Costa-Silva
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP, 09210-180, Brazil.
| | - Luis M Quirós-Guerrero
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Emerson F Queiroz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSW), University of Geneva, Geneva, Switzerland.
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, SP, 01246-000, Brazil.
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP, 09210-180, Brazil.
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22
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Silva ML, Costa‐Silva TA, Antar GM, Tempone AG, Lago JHG. Front Cover: Chemical Constituents from Aerial Parts of
Baccharis sphenophylla
and Effects against Intracellular Forms of
Trypanosoma cruzi
(Chem. Biodiversity 10/2021). Chem Biodivers 2021. [DOI: 10.1002/cbdv.202100695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Matheus L. Silva
- Center of Natural Sciences and Humanities Federal University of ABC SP 09210-580 Santo André Brazil
| | - Thais A. Costa‐Silva
- Center of Natural Sciences and Humanities Federal University of ABC SP 09210-580 Santo André Brazil
| | - Guilherme M. Antar
- Department of Botany Institute of Biosciences University of São Paulo SP 05508-090 São Paulo Brazil
| | - Andre G. Tempone
- Center for Parasitology and Mycology Instituto Adolfo Lutz SP 01246–000 São Paulo Brazil
| | - João Henrique G. Lago
- Center of Natural Sciences and Humanities Federal University of ABC SP 09210-580 Santo André Brazil
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23
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Souza DCS, Costa-Silva TA, Morais TR, Brito JR, Ferreira EA, Antar GM, Sartorelli P, Tempone AG, Lago JHG. Simplified Derivatives of Dibenzylbutyrolactone Lignans from Hydrocotyle bonariensis as Antitrypanosomal Candidates. Chem Biodivers 2021; 18:e2100515. [PMID: 34424612 DOI: 10.1002/cbdv.202100515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/29/2021] [Accepted: 08/23/2021] [Indexed: 11/10/2022]
Abstract
The search for the pharmacophore of a bioactive compound, crucial for drug discovery studies, involves the adequate arrangement of different atoms in the molecule. As part of a continuous work aiming discovery of new drug candidates against the protozoan parasite Trypanosoma cruzi, the hexane extract of Hydrocotyle bonariensis was subjected to a bioactivity-guided fractionation to afford two chemically related dibenzylbutyrolactone lignans - hinokinin (1) and hibalactone (2). Compounds 1 and 2 showed activity against trypomastigote with EC50 values of 17.0 and 69.4 μM, respectively. Compound 1 was also active against the clinically relevant form of the parasite, amastigotes, displaying an EC50 value of 34.4 μM. The structure-activity relationship (SAR) indicated that the absence of the double bond at C-7 is a crucial feature for the increment of the antiparasitic activity. The lethal action of the most potent compound 1 was investigated in the trypomastigotes. The fluorescent-based assay with SYTOX Green demonstrated a significant alteration of the plasma membrane permeability of the parasite. Additionally, compound 1 demonstrated no significant hemolytic activity in mice erythrocytes at 200 μM. To search the pharmacophore, three different simplified compounds - 3,4-methylenedioxydihydrocinnamic acid (3), 3,4-methylenedioxydihydrocinnamic alcohol (4) and 3,4-methylenedioxycinnamic acid (5) - were prepared and tested against T. cruzi. These derivatives displayed EC50 values of 37.2 (3), 25.8 (4) and 73.5 (5) μM against trypomastigotes, and 41.3 (3) and 48.2 (4) μM against amastigotes, whereas compound 5 was inactive. Except for compound 2, which resulted in a CC50 value of 114.5 μM, all compounds showed no mammalian cytotoxicity at 200 μM. An in silico ADMET study was performed and predicted values demonstrated an acceptable drug-likeness profile for compounds 1-5. Despite the minor reduction in the potency, the simplified derivatives retained the antitrypanosomal activity against the intracellular amastigotes, even with 95 % reduction of their molecular weight. Additionally, in silico studies suggested them as more soluble compounds, making these simplified structures promising scaffolds for optimization studies in Chagas disease.
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Affiliation(s)
- Dalete Christine S Souza
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09913-030, Diadema, SP, Brazil
| | - Thais A Costa-Silva
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
| | - Thiago R Morais
- Neglected Diseases Research Center, University of Guarulhos, 07023-070, Guarulhos, SP, Brazil
| | - Juliana R Brito
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09913-030, Diadema, SP, Brazil
| | - Edgard A Ferreira
- School of Engineering, Mackenzie Presbyterian University, 01302-907, Sao Paulo, SP, Brazil
| | - Guilherme M Antar
- Institute of Biosciences, University of São Paulo, 05508-090, São Paulo, SP, Brazil
| | - Patricia Sartorelli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09913-030, Diadema, SP, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, 01246-902, São Paulo, SP, Brazil
| | - João Henrique G Lago
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
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24
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Carnaúba PU, Mengarda AC, Rodrigues VC, Morais TR, de Oliveira A, Lago JHG, de Moraes J. Evaluation of Gibbilimbol B, Isolated from Piper malacophyllum (Piperaceae), as an Antischistosomal Agent. Chem Biodivers 2021; 18:e2100503. [PMID: 34418297 DOI: 10.1002/cbdv.202100503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/27/2021] [Accepted: 08/20/2021] [Indexed: 12/25/2022]
Abstract
Infections caused by parasitic worms impose a considerable worldwide health burden. One of the most impactful is schistosomiasis, a disease caused by blood-dwelling of the genus Schistosoma that affects more than 230 million people worldwide. Since praziquantel has also been extensively used to treat schistosomiasis and other parasitic flatworm infections, there is an urgent need to identify novel anthelmintic compounds, mainly from natural sources. In this study, the hexane extract from roots of Piper malacophyllum (Piperaceae) showed to be mainly composed for gibbilimbol B by HPLC/ESI-HRMS. Based on this result, this compound was isolated by chromatographic steps and its structure was confirmed by NMR. In vitro bioassays showed that gibbilimbol B was more active than praziquantel against larval stage of S. mansoni, with effective concentrations of 50 % (EC50 ) and 90 % (EC90 ) values of 2.6 and 3.4 μM, respectively. Importantly, gibbilimbol B showed no cytotoxicity to mammalian cells at a concentration 190 times greater than the antiparasitic effect, giving support for the anthelmintic potential of gibbilimbol B as lead compound for novel antischistosomal agents.
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Affiliation(s)
- Paulo U Carnaúba
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 88, Guarulhos, SP, 07023-070, Brazil
| | - Ana C Mengarda
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 88, Guarulhos, SP, 07023-070, Brazil
| | - Vinícius C Rodrigues
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 88, Guarulhos, SP, 07023-070, Brazil
| | - Thiago R Morais
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 88, Guarulhos, SP, 07023-070, Brazil
| | - Alberto de Oliveira
- Instituto de Química, Universidade Federal de Uberlândia, Av. João Naves de Ávila, 2121, Uberlândia, MG, 38408-100, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001, Santo André, SP, 09210-580, Brazil
| | - Josué de Moraes
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 88, Guarulhos, SP, 07023-070, Brazil
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25
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Silva ML, Costa-Silva TA, Antar GM, Tempone AG, Lago JHG. Chemical Constituents from Aerial Parts of Baccharis sphenophylla and Effects against Intracellular Forms of Trypanosoma cruzi. Chem Biodivers 2021; 18:e2100466. [PMID: 34263530 DOI: 10.1002/cbdv.202100466] [Citation(s) in RCA: 3] [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: 06/11/2021] [Accepted: 07/13/2021] [Indexed: 11/08/2022]
Abstract
The hexane extract from aerial parts Baccharis sphenophylla Dusén ex Malme (Asteraceae) displayed activity against amastigote forms of Trypanossoma cruzi and was subjected to chromatographic steps to afford one unreported - 7α-hydroxy-ent-abieta-8(14),13(15)-dien-16,12β-olide (1) and three known diterpenes - ent-kaur-16-en-19-oic acid, (2), grandifloric acid (3), and 15β-tiglinoyloxy-ent-kaur-16-en-19-oic acid (4), two sesquiterpenes - spathulenol (5) and oplopanone (6) - as well as hexacosyl p-coumarate (7). Isolated compounds were characterized by NMR and ESI-HR-MS spectra and were evaluated in vitro for activity against amastigote forms of the parasite T. cruzi - the relevant clinical form in the chronic phase of Chagas disease. In addition, the activity of compounds 1-7 against NCTC cells was evaluated. Compounds 1 and 7 showed effectiveness with EC50 values of 21.3 and 16.9 μM, respectively. Both compounds also exhibited reduced toxicity against NCTC cells (CC50 >200 μM) with SI values higher than 9.4 and 11.9. Obtained results suggest that the new ent-abietane diterpene 1 and alkyl coumarate 7 could be used as prototypes for the development of novel and selective semisynthetic derivatives against intracellular forms of T. cruzi.
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Affiliation(s)
- Matheus L Silva
- Center of Natural Sciences and Humanities, Federal University of ABC, SP 09210-580, Santo André, Brazil
| | - Thais A Costa-Silva
- Center of Natural Sciences and Humanities, Federal University of ABC, SP 09210-580, Santo André, Brazil
| | - Guilherme M Antar
- Department of Botany, Institute of Biosciences, University of São Paulo, SP 05508-090, São Paulo, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, SP 01246-000, São Paulo, Brazil
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, SP 09210-580, Santo André, Brazil
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26
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Reis IMA, Umehara E, Conceição RS, de M Oliveira L, Dos S Junior MC, Costa-Silva TA, Amaral M, Tempone AG, Branco A, Lago JHG. γ-Lactones from Persea americana and Persea fulva - in Vitro and in Silico Evaluation of Trypanosoma cruzi Activity. Chem Biodivers 2021; 18:e2100362. [PMID: 34254435 DOI: 10.1002/cbdv.202100362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/05/2021] [Accepted: 07/12/2021] [Indexed: 11/10/2022]
Abstract
In the present study, five known γ-lactones (majoranolide B - 1, majorenolide - 2, majorynolide - 3, lincomolide D - 4, and isolinderanolide E - 5), as well as a new one (perseanolide - 6), were isolated from Persea fulva and P. americana. All isolated compounds exhibited potential activity against trypomastigote forms of Trypanosoma cruzi, whereas compounds 2 (EC50 of 4.8 μM) and 6 (EC50 of 3.6 μM) displayed superior activity than the positive control benznidazole (EC50 of 16.4 μM), with selectivity index (SI) values of 17.8 and >55.6, respectively (benznidazole, SI>12.2). Molecular docking studies were performed for 1-6 against six T. cruzi molecular targets. Using this approach, we observed that, even though perseanolide (6) showed favorable docking to several studied targets, the results were especially promising for hypoxanthine phosphoribosyl transferase (PDB 1TC1). As PDB 1TC1 is associated to the transference of a monophosphorylated ribose from phosphoribosylpyrophosphate (PRPP) in the ribonucleotide synthesis pathway, this interaction may affect the survival of T. cruzi in mammalian cells. The data herein also indicate that possible intermolecular interactions between 6 and PDB 1TC1 derive from (i) hydrogen bonds in the α,β-unsaturated-γ-lactone unity and (ii) hydrophobic interactions in the long-chain alkyl group. Based on our results, perseanolide (6), reported for the first time in this work, can auspiciously contribute to future works regarding new trypanocidal agents.
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Affiliation(s)
- Isabella Mary A Reis
- Departamento de Saúde, Universidade Estadual de Feira de Santana, 44036-900, Feira de Santana, BA, Brazil
| | - Eric Umehara
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
| | - Rodrigo S Conceição
- Departamento de Saúde, Universidade Estadual de Feira de Santana, 44036-900, Feira de Santana, BA, Brazil
| | - Larissa de M Oliveira
- Departamento de Saúde, Universidade Estadual de Feira de Santana, 44036-900, Feira de Santana, BA, Brazil
| | | | - Thais A Costa-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
| | - Maiara Amaral
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, 01246-902, São Paulo, SP, Brazil
| | - Andre G Tempone
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, 01246-902, São Paulo, SP, Brazil
| | - Alexsandro Branco
- Departamento de Saúde, Universidade Estadual de Feira de Santana, 44036-900, Feira de Santana, BA, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo Andre, SP, Brazil
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27
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Araujo SC, Sousa FS, Costa-Silva TA, Tempone AG, Lago JHG, Honorio KM. Discovery of New Hits as Antitrypanosomal Agents by In Silico and In Vitro Assays Using Neolignan-Inspired Natural Products from Nectandra leucantha. Molecules 2021; 26:molecules26144116. [PMID: 34299391 PMCID: PMC8306904 DOI: 10.3390/molecules26144116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/25/2021] [Accepted: 06/30/2021] [Indexed: 11/17/2022] Open
Abstract
In the present study, the phytochemical study of the n-hexane extract from flowers of Nectandra leucantha (Lauraceae) afforded six known neolignans (1–6) as well as one new metabolite (7), which were characterized by analysis of NMR, IR, UV, and ESI-HRMS data. The new compound 7 exhibited potent activity against the clinically relevant intracellular forms of T. cruzi (amastigotes), with an IC50 value of 4.3 μM and no observed mammalian cytotoxicity in fibroblasts (CC50 > 200 μM). Based on the results obtained and our previous antitrypanosomal data of 50 natural and semi-synthetic related neolignans, 2D and 3D molecular modeling techniques were employed to help the design of new neolignan-based compounds with higher activity. The results obtained from the models were important to understand the main structural features related to the biological response of the neolignans and to aid in the design of new neolignan-based compounds with better biological activity. Therefore, the results acquired from phytochemical, biological, and in silico studies showed that the integration of experimental and computational techniques consists of a powerful tool for the discovery of new prototypes for development of new drugs to treat CD.
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Affiliation(s)
- Sheila C. Araujo
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Bangu, Santo André 09210-580, SP, Brazil; (S.C.A.); (T.A.C.-S.)
| | - Fernanda S. Sousa
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Rua Prof. Arthur Riedel, 275, Diadema 09972-271, SP, Brazil;
- Departamento de Fisiologia e Biofísica, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627, Belo Horizonte 31270-901, MG, Brazil
| | - Thais A. Costa-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Bangu, Santo André 09210-580, SP, Brazil; (S.C.A.); (T.A.C.-S.)
| | - Andre G. Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, Avenida Doutor Arnaldo, 351, São Paulo 01246-000, SP, Brazil;
| | - João Henrique G. Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Bangu, Santo André 09210-580, SP, Brazil; (S.C.A.); (T.A.C.-S.)
- Correspondence: (J.H.G.L.); (K.M.H.)
| | - Kathia M. Honorio
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados, 5001 Bangu, Santo André 09210-580, SP, Brazil; (S.C.A.); (T.A.C.-S.)
- Escola de Artes, Ciências e Humanidades, Universidade de São Paulo, Rua Arlindo Bettio, 1000 Ermelino Matarazzo, São Paulo 03828-000, SP, Brazil
- Correspondence: (J.H.G.L.); (K.M.H.)
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28
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Mengarda AC, Silva MP, Cirino ME, Morais TR, Conserva GAA, Lago JHG, de Moraes J. Licarin A, a neolignan isolated from Nectandra oppositifolia Nees & Mart. (Lauraceae), exhibited moderate preclinical efficacy against Schistosoma mansoni infection. Phytother Res 2021; 35:5154-5162. [PMID: 34089558 DOI: 10.1002/ptr.7184] [Citation(s) in RCA: 7] [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: 02/12/2021] [Revised: 05/03/2021] [Accepted: 05/18/2021] [Indexed: 12/19/2022]
Abstract
Schistosomiasis is a widespread human parasitic disease currently affecting over 200 million people, particularly in poor communities. Chemotherapy for schistosomiasis relies exclusively on praziquantel (PZQ). Previous studies have shown that licarin A (LIC-A), a dihydrobenzofuran neolignan, exhibited in vitro antiparasitic activity against Schistosoma mansoni adult worms. This study aimed to investigate the potential of LIC-A, isolated as main metabolite from leaves of Nectandra oppositifolia Nees & Mart. (Lauraceae), as an antischistosomal agent orally active in schistosomiasis animal model. PZQ was used as a reference compound. As result, LIC-A showed, at a single dose of 400 mg/kg, to be able to partially cure infected mice (worm burden reductions of ~50%). Parasite eggs, that are responsible for a variety of pathologies and transmission of schistosomiasis, were also moderately inhibited by LIC-A (egg burden reductions of ~50%-60%). Furthermore, it was observed that LIC-A achieved a slight reduction of hepatomegaly and splenomegaly. Collectively, although LIC-A was partially active when administered orally, these results give support for the antiparasitic potential LIC-A as lead compound for novel antischistosomal agent.
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Affiliation(s)
- Ana C Mengarda
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo, Brazil
| | - Marcos P Silva
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo, Brazil
| | - Maria E Cirino
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo, Brazil
| | - Thiago R Morais
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo, Brazil
| | - Geanne A A Conserva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Josué de Moraes
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo, Brazil
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Barbosa H, Costa-Silva TA, Alves Conserva GA, Araujo AJ, Lordello ALL, Antar GM, Amaral M, Soares MG, Tempone AG, Lago JHG. Aporphine Alkaloids from Ocotea puberula with Anti-Trypanosoma Cruzi Potential - Activity of Dicentrine-β-N-Oxide in the Plasma Membrane Electric Potentials. Chem Biodivers 2021; 18:e2001022. [PMID: 33635585 DOI: 10.1002/cbdv.202001022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/11/2020] [Accepted: 02/11/2021] [Indexed: 11/05/2022]
Abstract
One new aporphine, dicentrine-β-N-oxide (1), together with five related known alkaloids dehydrodicentrine (2), predicentrine (3), N-methyllaurotetanine (4), cassythicine (5), and dicentrine (6) were isolated from the leaves of Ocotea puberula (Lauraceae). Antiprotozoal activity of the isolated compounds was evaluated in vitro against trypomastigote forms of Trypanosoma cruzi. Among the tested compounds, alkaloid 1 exhibited higher potential with EC50 value of 18.2 μM and reduced toxicity against NCTC cells (CC50 >200 μM - SI>11.0), similar to positive control benznidazole (EC50 of 17.7 μM and SI=10.7). Considering the promising results of dicentrine-β-N-oxide (1) against trypomastigotes, the mechanism of parasite death caused by this alkaloid was investigated. As observed, this compound reached the plasma membrane electric potential directly after 2 h of incubation and triggered mitochondrial depolarization, which probably leads to trypomastigote death. Therefore, dicentrine-β-N-oxide (1), reported for the first time in this work, can contribute to future works for the development of new trypanocidal agents.
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Affiliation(s)
- Henrique Barbosa
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
| | - Thais A Costa-Silva
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
| | - Geanne A Alves Conserva
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
| | - Adelson J Araujo
- Department of Chemistry, Federal University of Paraná, 81531-980, Curitiba, PR, Brazil
| | - Ana Luísa L Lordello
- Department of Chemistry, Federal University of Paraná, 81531-980, Curitiba, PR, Brazil
| | - Guilherme M Antar
- Institute of Biosciences, University of São Paulo, 05508-090, São Paulo, SP, Brazil
| | - Maiara Amaral
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, 01246-902, São Paulo, SP, Brazil
| | - Marisi G Soares
- Institute of Chemistry, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, 01246-902, São Paulo, SP, Brazil
| | - João Henrique G Lago
- Center for Natural and Human Sciences, Federal University of ABC, 09210-580, Santo Andre, SP, Brazil
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Sessa DP, Mengarda AC, Simplicio PE, Antar GM, Lago JHG, de Moraes J. 15β-Senecioyl-oxy- ent-kaur-16-en-19-oic Acid, a Diterpene Isolated from Baccharis lateralis, as Promising Oral Compound for the Treatment of Schistosomiasis. J Nat Prod 2020; 83:3744-3750. [PMID: 33236902 DOI: 10.1021/acs.jnatprod.0c01050] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Praziquantel is the only available drug to treat schistosomiasis, and therefore, urgent studies must be performed to identify new anthelmintic agents. This study reports the anthelmintic evaluation of two related ent-kaurane diterpenes isolated from aerial parts of Baccharis lateralis (Asteraceae), ent-kaur-16-en-19-oic acid (1) and 15β-senecioyl-oxy-ent-kaur-16-en-19-oic acid (2) against Schistosoma mansoni in vitro and in a murine model of schistosomiasis. Both compounds exhibited in vitro activity with lethal concentration 50% (LC50) values of 26.1 μM (1) and 11.6 μM (2) as well as reduced toxicity against human cell lines, revealing a good selectivity profile, mainly with compound 2 (selectivity index > 10). Compound 2 also decreased egg production and caused morphological alterations in the parasite reproductive system. In mice infected with S. mansoni, oral treatment with compound 2 at 400 mg/kg, the standard dose used in this model of schistosomiasis, caused a significant reduction in a total worm burden of 61.9% (P < 0.01). S. mansoni egg production, a key mechanism for both transmission and pathogenesis, was also markedly reduced. In addition, compound 2 achieved a significant reduction in hepatosplenomegaly. Therefore, the diterpene 15β-senecioyl-oxy-ent-kaur-16-en-19-oic acid (2) has an acceptable cytotoxicity profile and is orally active in a murine schistosomiasis model.
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Affiliation(s)
- Deborah P Sessa
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo 09210-180, Brazil
| | - Ana C Mengarda
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo 07023-070, Brazil
| | - Paula E Simplicio
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo 07023-070, Brazil
| | - Guilherme M Antar
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo 09210-180, Brazil
| | - Josué de Moraes
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Guarulhos, São Paulo 07023-070, Brazil
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Umehara E, Costa Silva TA, Mendes VM, Guadagnin RC, Sartorelli P, Tempone AG, Lago JHG. Differential lethal action of C17:2 and C17:0 anacardic acid derivatives in Trypanosoma cruzi – A mechanistic study. Bioorg Chem 2020; 102:104068. [DOI: 10.1016/j.bioorg.2020.104068] [Citation(s) in RCA: 2] [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] [Received: 04/13/2020] [Revised: 06/27/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023]
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Barbosa H, da Silva RLC, Costa-Silva TA, Tempone AG, Antar GM, Lago JHG, Caseli L. Interaction of dicentrinone, an antitrypanosomal aporphine alkaloid isolated from Ocotea puberula (Lauraceae), in cell membrane models at the air-water interface. Bioorg Chem 2020; 101:103978. [DOI: 10.1016/j.bioorg.2020.103978] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/20/2020] [Accepted: 05/26/2020] [Indexed: 02/03/2023]
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Santana FPR, da Silva RC, Ponci V, Pinheiro AJMCR, Olivo CR, Caperuto LC, Arantes-Costa FM, Claudio SR, Ribeiro DA, Tibério IFLC, Lima-Neto LG, Lago JHG, Prado CM. Dehydrodieugenol improved lung inflammation in an asthma model by inhibiting the STAT3/SOCS3 and MAPK pathways. Biochem Pharmacol 2020; 180:114175. [PMID: 32717226 DOI: 10.1016/j.bcp.2020.114175] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Eugenol, a common phenylpropanoid derivative found in different plant species, has well-described anti-inflammatory effects associated with the development of occupational hypersensitive asthma. Dehydrodieugenol, a dimeric eugenol derivative, exhibits anti-inflammatory and antioxidant activities and can be found in the Brazilian plant species Nectandra leucantha (Lauraceae). The biological effects of dehydrodieugenol on lung inflammation remain unclear. PURPOSE This study aimed to investigate the effects of eugenol and dehydrodieugenol isolated from N. leucantha in an experimental model of asthma. METHODS In the present work, the toxic effects of eugenol and dehydrodieugenol on RAW 264.7 cells and their oxidant and inflammatory effects before lipopolysaccharide (LPS) exposure were tested. Then, male BALB/c mice were sensitized with ovalbumin through a 29-day protocol and treated with vehicle, eugenol, dehydrodieugenol or dexamethasone for eight days beginning on the 22nd day until the end of the protocol. Lung function; the inflammatory profile; and the protein expression of ERK1/2, JNK, p38, VAChT, STAT3, and SOCS3 in the lung were evaluated by immunoblotting. RESULTS Eugenol and dehydrodieugenol were nontoxic to cells. Both compounds inhibited NO release and the gene expression of IL-1β and IL-6 in LPS-stimulated RAW 264.7 cells. In OVA-sensitized animals, dehydrodieugenol reduced lung inflammatory cell numbers and the lung concentrations of IL-4, IL-13, IL-17, and IL-10. These anti-inflammatory effects were associated with inhibition of the JNK, p38 and ERK1/2, VAChT and STAT3/SOCS3 pathways. Moreover, treatment with dehydrodieugenol effectively attenuated airway hyperresponsiveness. CONCLUSION The obtained data demonstrate, for the first time, that dehydrodieugenol was more effective than eugenol in counteracting allergic airway inflammation in mice, especially its inhibition of the JNK, p38 and ERK1/2, components of MAPK pathway. Therefore, dehydrodieugenol can be considered a prototype for the development of new and effective agents for the treatment of asthmatic patients.
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Affiliation(s)
- Fernanda P R Santana
- Department of Biological Science, Federal University of São Paulo, Diadema, SP, Brazil; Department of Medicine, School of Medicine, University of São Paulo, SP, Brazil
| | - Rafael C da Silva
- Department of Biological Science, Federal University of São Paulo, Diadema, SP, Brazil
| | - Vitor Ponci
- Department of Biological Science, Federal University of São Paulo, Diadema, SP, Brazil
| | - Aruanã J M C R Pinheiro
- Universidade CEUMA, São Luís, MA, Brazil; Programa de Pós-Graduação da Rede BIONORTE, Brazil
| | - Clarice R Olivo
- Department of Medicine, School of Medicine, University of São Paulo, SP, Brazil
| | - Luciana C Caperuto
- Department of Biological Science, Federal University of São Paulo, Diadema, SP, Brazil
| | | | - Samuel R Claudio
- Department of Bioscience, Federal University of São Paulo, Santos, Brazil
| | - Daniel A Ribeiro
- Department of Bioscience, Federal University of São Paulo, Santos, Brazil
| | | | - Lídio G Lima-Neto
- Universidade CEUMA, São Luís, MA, Brazil; Programa de Pós-Graduação da Rede BIONORTE, Brazil
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo André, SP, Brazil
| | - Carla M Prado
- Department of Bioscience, Federal University of São Paulo, Santos, Brazil.
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Yamamoto ES, de Jesus JA, Bezerra-Souza A, Brito JR, Lago JHG, Laurenti MD, Passero LFD. Tolnaftate inhibits ergosterol production and impacts cell viability of Leishmania sp. Bioorg Chem 2020; 102:104056. [PMID: 32653607 DOI: 10.1016/j.bioorg.2020.104056] [Citation(s) in RCA: 9] [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: 05/11/2020] [Revised: 06/12/2020] [Accepted: 06/26/2020] [Indexed: 12/13/2022]
Abstract
Leishmaniasis is an infectious disease caused by protozoan parasites of the genus Leishmania. The treatment of all forms of leishmaniasis relies on first-line drug, pentavalent antimonial, and in cases of drug failure, the second-line drug amphotericin B has been used. Besides the high toxicity of drugs, parasites can be resistant to antimonial in some areas of the World, making it necessary to perform further studies for the characterization of new antileishmanial agents. Thus, the aim of the present work was to evaluate the leishmanicidal activity of tolnaftate, a selective reversible and non-competitive inhibitor of the fungal enzyme squalene epoxidase, which is involved in the biosynthesis of ergosterol, essential to maintain membrane physiology in fungi as well as trypanosomatids. Tolnaftate eliminated promastigote forms of L. (L.) amazonensis, L. (V.) braziliensis and L. (L.) infantum (EC50 ~ 10 μg/mL and SI ~ 20 for all leishmanial species), and intracellular amastigote forms of all studied species (EC50 ~ 23 μg/mL in infections caused by dermatotropic species; and 11.7 μg/mL in infection caused by viscerotropic species) with high selectivity toward parasites [SI ~ 8 in infections caused by dermatotropic species and 17.4 for viscerotropic specie]. Promastigote forms of L. (L.) amazonensis treated with the EC50 of tolnaftate displayed morphological and physiological changes in the mitochondria and cell membrane. Additionally, promastigote forms treated with tolnaftate EC50 reduced the level of ergosterol by 5.6 times in comparison to the control parasites. Altogether, these results suggest that tolnaftate has leishmanicidal activity towards Leishmania sp., is selective, affects the cell membrane and mitochondria of parasites and, moreover, inhibits ergosterol production in L. (L.) amazonensis.
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Affiliation(s)
- Eduardo Seiji Yamamoto
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455, Cerqueira César, São Paulo 01246-903, SP, Brazil
| | - Jéssica Adriana de Jesus
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455, Cerqueira César, São Paulo 01246-903, SP, Brazil
| | - Adriana Bezerra-Souza
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455, Cerqueira César, São Paulo 01246-903, SP, Brazil
| | - Juliana R Brito
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-180 São Paulo, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-180 São Paulo, Brazil
| | - Márcia Dalastra Laurenti
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455, Cerqueira César, São Paulo 01246-903, SP, Brazil
| | - Luiz Felipe Domingues Passero
- São Paulo State University (UNESP), Institute of Biosciences, São Vicente, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil; São Paulo State University (UNESP), Institute for Advanced Studies of Ocean, São Vicente, Av. João Francisco Bensdorp, 1178, 11350-011 São Vicente, SP, Brazil.
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Silva LG, Gomes KS, Costa-Silva TA, Romanelli MM, Tempone AG, Sartorelli P, Lago JHG. Calanolides E1 and E2, two related coumarins from Calophyllum brasiliense Cambess. (Clusiaceae), displayed in vitro activity against amastigote forms of Trypanosoma cruzi and Leishmania infantum. Nat Prod Res 2020; 35:5373-5377. [PMID: 32441133 DOI: 10.1080/14786419.2020.1765347] [Citation(s) in RCA: 2] [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] [Indexed: 12/12/2022]
Abstract
In the present work, the MeOH extract from stem barks of Calophyllum brasiliense Cambess. (Clusiaceae) displayed activity against amastigote forms of Trypanosoma cruzi and Leishmania infantum and was subjected to a bioactivity-guided fractionation to give two related coumarins - calanolides E1 (1) and E2 (2). Compounds 1 and 2 were actives to T. cruzi with EC50 values of 12.1 and 8.2 μM, respectively. When tested against L. infantum, the EC50 values were 37.1 and 29.1 μM, respectively. Compound 2, corresponding to anti isomer, showed the best selectivity index (SI) with values >24.4 to T. cruzi and >6.9 to L. infantum in comparison to the syn isomer 1. Furthermore, using an in silico multi-parametric prediction, both compounds did not contain any PAINS sub-structures. Therefore, these data suggest that coumarins 1 and 2 may contribute as scaffolds for the design of novel drug candidates for leishmaniasis and Chagas disease.
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Affiliation(s)
- Luciana Grus Silva
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - Kaio S Gomes
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
| | - Thais A Costa-Silva
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
| | - Maiara M Romanelli
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, Brazil
| | - Patricia Sartorelli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - João Henrique G Lago
- Centre of Human and Natural Sciences, Federal University of ABC, Santo André, Brazil, São Paulo, Brazil
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Mengarda AC, Mendonça PS, Morais CS, Cogo RM, Mazloum SF, Salvadori MC, Teixeira FS, Morais TR, Antar GM, Lago JHG, Moraes J. Antiparasitic activity of piplartine (piperlongumine) in a mouse model of schistosomiasis. Acta Trop 2020; 205:105350. [PMID: 31962096 DOI: 10.1016/j.actatropica.2020.105350] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 08/06/2019] [Revised: 12/30/2019] [Accepted: 01/17/2020] [Indexed: 01/09/2023]
Abstract
Schistosomiasis is one of the most important parasitic infections in terms of its negative effects on public health and economics. Since praziquantel is currently the only drug available to treat schistosomiasis, there is an urgent need to identify new anthelmintic agents. Piplartine, also known as piperlongumine, is a biologically active alkaloid/amide from peppers that can be detected in high amounts in the roots of Piper tuberculatum. Previously, it has been shown to have in vitro schistosomicidal effects. However, its anthelmintic activity in an animal host has not been reported. In the present work, in vivo antischistosomal properties of isolated piplartine were evaluated in a mouse model of schistosomiasis infected with either adult (patent infection) or juvenile (pre-patent infection) stages of Schistosoma mansoni. A single dose of piplartine (100, 200 or 400 mg/kg) or daily doses for five consecutive days (100 mg/kg/day) administered orally to mice infected with schistosomes resulted in a reduction in worm burden and egg production. Treatment with the highest piplartine dose (400 mg/kg) caused a significant reduction in a total worm burden of 60.4% (P < 0.001) in mice harbouring adult parasites. S. mansoni egg production, a process responsible for pathology in schistosomiasis, was also significantly inhibited by piplartine. Studies using scanning electron microscopy revealed substantial tegumental alterations in parasites recovered from mice. Since piplartine has well-characterized mechanisms of toxicity, is easily available, and is cost-effective, our results indicate that this bioactive molecule derived from medicinal plants could be a potential lead compound for novel antischistosomal agents.
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Affiliation(s)
- Ana C Mengarda
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 229, Centro, 07023-070, Guarulhos, SP, Brazil
| | - Poliana S Mendonça
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, 09210-180, Brazil
| | - Cristiane S Morais
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 229, Centro, 07023-070, Guarulhos, SP, Brazil
| | - Ramon M Cogo
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 229, Centro, 07023-070, Guarulhos, SP, Brazil
| | - Susana F Mazloum
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 229, Centro, 07023-070, Guarulhos, SP, Brazil
| | - Maria C Salvadori
- Instituto de Física, Universidade de São Paulo, São Paulo, SP, Brazil
| | | | - Thiago R Morais
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 229, Centro, 07023-070, Guarulhos, SP, Brazil
| | - Guilherme M Antar
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, 05508-090, São Paulo, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, 09210-180, Brazil
| | - Josué Moraes
- Núcleo de Pesquisa em Doenças Negligenciadas, Universidade Guarulhos, Praça Tereza Cristina, 229, Centro, 07023-070, Guarulhos, SP, Brazil.
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Morais TR, Conserva GAA, Varela MT, Costa-Silva TA, Thevenard F, Ponci V, Fortuna A, Falcão AC, Tempone AG, Fernandes JPS, Lago JHG. Improving the drug-likeness of inspiring natural products - evaluation of the antiparasitic activity against Trypanosoma cruzi through semi-synthetic and simplified analogues of licarin A. Sci Rep 2020; 10:5467. [PMID: 32214193 PMCID: PMC7096397 DOI: 10.1038/s41598-020-62352-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 12/13/2019] [Accepted: 02/20/2020] [Indexed: 01/05/2023] Open
Abstract
Neolignan licarin A (1) was isolated from leaves of Nectandra oppositifolia (Lauraceae) and displayed activity against trypomastigote forms of the etiologic agent of American trypanosomiasis, Trypanosoma cruzi. Aiming for the establishment of SAR, five different compounds (1a - 1e) were prepared and tested against T. cruzi. The 2-allyl derivative of licarin A (1d) exhibited higher activity against trypomastigotes of T. cruzi (IC50 = 5.0 μM and SI = 9.0), while its heterocyclic derivative 1e displayed IC50 of 10.5 μM and reduced toxicity against NCTC cells (SI > 19.0). However, these compounds presented limited oral bioavailability estimation (<85%, Papp <1.0 × 10-6 cm/s) in parallel artificial membrane permeability assays (PAMPA) due to excessive lipophilicity. Based on these results, different simplified structures of licarin A were designed: vanillin (2), vanillyl alcohol (3), isoeugenol (4), and eugenol (5), as well as its corresponding methyl (a), acetyl (b), O-allyl (c), and C-allyl (d) analogues. Vanillin (2) and its acetyl derivative (2b) displayed expressive activity against intracellular amastigotes of T. cruzi with IC50 values of 5.5 and 5.6 μM, respectively, and reduced toxicity against NCTC cells (CC50 > 200 μM). In addition, these simplified analogues showed a better permeability profile (Papp > 1.0 × 10-6 cm/s) on PAMPA models, resulting in improved drug-likeness. Vanillyl alcohol acetyl derivative (3b) and isoeugenol methyl derivative (4a) displayed activity against the extracellular forms of T. cruzi (trypomastigotes) with IC50 values of 5.1 and 8.8 μM respectively. Based on these results, compounds with higher selectivity index against extracellular forms of the parasite (1d, 1e, 3d, and 4a) were selected for a mechanism of action study. After a short incubation period (1 h) all compounds increased the reactive oxygen species (ROS) levels of trypomastigotes, suggesting cellular oxidative stress. The ATP levels were increased after two hours of incubation, possibly involving a high energy expenditure of the parasite to control the homeostasis. Except for compound 4a, all compounds induced hyperpolarization of mitochondrial membrane potential, demonstrating a mitochondrial imbalance. Considering the unique mitochondria apparatus of T. cruzi and the lethal alterations induced by structurally based on licarin A, these compounds are interesting hits for future drug discovery studies in Chagas disease.
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Affiliation(s)
- Thiago R Morais
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil
| | - Geanne A Alves Conserva
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - Marina T Varela
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil
| | - Thais A Costa-Silva
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - Fernanda Thevenard
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - Vitor Ponci
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil
| | - Ana Fortuna
- Laboratory of Pharmacology, Faculty of Pharmacy of University of Coimbra, 3000-370, Coimbra, Portugal
- CIBIT/ICNAS - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, 3000-370, Coimbra, Portugal
| | - Amílcar C Falcão
- Laboratory of Pharmacology, Faculty of Pharmacy of University of Coimbra, 3000-370, Coimbra, Portugal
- CIBIT/ICNAS - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, 3000-370, Coimbra, Portugal
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil
| | - João Paulo S Fernandes
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil.
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil.
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Domingos ODS, Alcântara BGV, Santos MFC, Maiolini TCS, Dias DF, Baldim JL, Lago JHG, Soares MG, Chagas-Paula DA. Anti-Inflammatory Derivatives with Dual Mechanism of Action from the Metabolomic Screening of Poincianella pluviosa. Molecules 2019; 24:molecules24234375. [PMID: 31795429 PMCID: PMC6930619 DOI: 10.3390/molecules24234375] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 10/16/2019] [Revised: 11/08/2019] [Accepted: 11/16/2019] [Indexed: 01/22/2023] Open
Abstract
Metabolomics approaches have become fundamental strategies for the analysis of complex mixtures, guiding the isolation of target compounds by focusing on unpublished or promising pharmacological properties. The discovery of novel anti-inflammatory agents is important due to several limitations regarding their potency, efficacy, and adverse effects. Thus, novel anti-inflammatory candidates are essential, aiming to find agents with better mechanisms of action. In this context, extracts from Poincianella pluviosa var. peltophoroides demonstrated significant in vivo anti-inflammatory potential. Thus, metabolomics analysis based on UHPLC-UV-HRFTMS data was performed for the identification of biomarkers with anti-inflammatory properties. Metabolomics-guided chromatographic process led to the isolation of novel compounds 4‴-methoxycaesalpinioflavone and 7-methoxycaesalpinioflavone, as well as known derivatives rhuschalcone VI and caesalpinioflavone. Isolated compounds caused edema inhibition and neutrophil recruitment. Two of them showed better efficacy than reference drugs (indomethacin and dexamethasone). Results of in vivo experiments corroborated those obtained through metabolomics and statistical analyses guiding the isolation of substances of interest.
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Affiliation(s)
- Olívia da S. Domingos
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
| | - Bianca G. V. Alcântara
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
| | - Mário F. C. Santos
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
| | - Tatiane C. S. Maiolini
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
| | - Danielle F. Dias
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
| | - João L. Baldim
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
- Instituto Federal de de Educação, Ciência e Tecnologia do Sul de Minas Gerais-IFSULDEMINAS, Muzambinho 37890-000, MG, Brazil
| | - João Henrique G. Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo Andre 09606-045, SP, Brazil or
| | - Marisi G. Soares
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
- Correspondence: (M.G.S.); (D.A.C.-P.); Tel.: +55-11-3701-9713 (M.G.S. & D.A.C.-P.)
| | - Daniela A. Chagas-Paula
- Instituto de Química–Universidade Federal de Alfenas, Alfenas 37130-001, MG, Brazil; (O.d.S.D.); (B.G.V.A.); (M.F.C.S.); (T.C.S.M.); (D.F.D.); (J.L.B.)
- Correspondence: (M.G.S.); (D.A.C.-P.); Tel.: +55-11-3701-9713 (M.G.S. & D.A.C.-P.)
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Pinheiro AJMCR, Mendes ARS, Neves MDFDJ, Prado CM, Bittencourt-Mernak MI, Santana FPR, Lago JHG, de Sá JC, da Rocha CQ, de Sousa EM, Fontes VC, Grisoto MAG, Falcai A, Lima-Neto LG. Corrigendum: Galloyl-Hexahydroxydiphenoyl (HHDP)-Glucose Isolated From Punica granatum L. Leaves Protects Against Lipopolysaccharide (LPS)-Induced Acute Lung Injury in BALB/c Mice. Front Immunol 2019; 10:2727. [PMID: 31819743 PMCID: PMC6890841 DOI: 10.3389/fimmu.2019.02727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 11/06/2019] [Indexed: 11/23/2022] Open
Affiliation(s)
| | | | | | - Carla Máximo Prado
- Department of Biosciences, Federal University of São Paulo, Santos, Brazil
- Department of Medicine, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Márcia Isabel Bittencourt-Mernak
- Department of Biosciences, Federal University of São Paulo, Santos, Brazil
- Department of Medicine, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Fernanda Paula Roncon Santana
- Department of Biosciences, Federal University of São Paulo, Santos, Brazil
- Department of Medicine, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - João Henrique G. Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | | | | | - Eduardo Martins de Sousa
- Programa de Pós-Graduação, Universidade CEUMA, São Luís, Brazil
- Programa de Pós-Graduação da Rede BIONORTE, Universidade Estadual do Maranhão, São Luís, Brazil
| | | | | | - Angela Falcai
- Programa de Pós-graduação, Mestrado em Meio Ambiente, Universidade CEUMA, São Luís, Brazil
| | - Lidio Gonçalves Lima-Neto
- Programa de Pós-Graduação, Universidade CEUMA, São Luís, Brazil
- Programa de Pós-Graduação da Rede BIONORTE, Universidade Estadual do Maranhão, São Luís, Brazil
- Departamento do Curso de Medicina, Universidade CEUMA, São Luís, Brazil
- *Correspondence: Lidio Gonçalves Lima-Neto
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Brito JR, Passero LFD, Bezerra-Souza A, Laurenti MD, Romoff P, Barbosa H, Ferreira EA, Lago JHG. Antileishmanial activity and ultrastructural changes of related tetrahydrofuran dineolignans isolated from Saururus cernuus L. (Saururaceae). J Pharm Pharmacol 2019; 71:1871-1878. [DOI: 10.1111/jphp.13171] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 09/14/2019] [Indexed: 02/03/2023]
Abstract
Abstract
Objective
This work describes the isolation of anti-Leishmania amazonensis metabolites from Saururus cernuus (Saururaceae). Additionally, ultrastructural changes in promastigotes were evidenced by electron microscopy.
Methods
The MeOH extract from the leaves of S. cernuus was subjected to bioactivity-guided fractionation. Anti-L. amazonensis activity of purified compounds was performed in vitro against promastigote and amastigote forms.
Key findings
Bioactivity-guided fractionation of the MeOH extract from the leaves of S. cernuus afforded two related tetrahydrofuran dineolignans: threo,threo-manassantin A (1) and threo,erythro-manassantin A (2). Compounds 1 and 2 displayed activity against promastigotes (EC50 of 35.4 ± 7.7 and 17.6 ± 4.2 μm, respectively) and amastigotes (EC50 of 20.4 ± 1.9 and 16.0 ± 1.1 μm, respectively), superior to that determined for the positive control miltefosine (EC50 of 28.7 ± 3.5 μm). Reduced cytotoxicity for host cells was observed for both compounds. Additionally, ultrastructural changes in promastigotes leading to an alteration of structural morphology were observed, as evidenced by electron microscopy. Furthermore, these compounds altered the morphology and physiology of the plasmatic membrane of L. amazonensis.
Conclusions
The obtained results indicated that dineolignans 1 and 2 could be considered as a scaffold for the design of novel and selective drug candidates for the treatment of leishmaniasis.
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Affiliation(s)
- Juliana R Brito
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| | - Luiz Felipe D Passero
- Instituto de Biociências, Instituto de Estudos Avançados do Mar, Universidade Estadual de São Paulo, São Vicente, Brazil
| | | | | | - Paulete Romoff
- Escola de Engenharia, Universidade Presbiteriana Mackenzie, São Paulo, Brazil
| | - Henrique Barbosa
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Edgard A Ferreira
- Escola de Engenharia, Universidade Presbiteriana Mackenzie, São Paulo, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
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Pinheiro AJMCR, Mendes ARS, Neves MDFDJ, Prado CM, Bittencourt-Mernak MI, Santana FPR, Lago JHG, de Sá JC, da Rocha CQ, de Sousa EM, Fontes VC, Grisoto MAG, Falcai A, Lima-Neto LG. Galloyl -Hexahydroxydiphenoyl (HHDP)-Glucose Isolated From Punica granatum L. Leaves Protects Against Lipopolysaccharide (LPS)-Induced Acute Lung Injury in BALB/c Mice. Front Immunol 2019; 10:1978. [PMID: 31481965 PMCID: PMC6710369 DOI: 10.3389/fimmu.2019.01978] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 08/05/2019] [Indexed: 12/14/2022] Open
Abstract
The hydroalcoholic extract and ethyl acetate fraction of Punica granatum leaves have been known to exhibit anti-inflammatory activities. In this study, we investigated the therapeutic effects of galloyl-hexahydroxydiphenoyl (HHDP)-glucose isolated from pomegranate leaves on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice. Male BALB/c mice were treated with different doses of galloyl-HHDP-glucose (5, 50, and 100 mg/Kg) or dexamethasone at 5 mg/Kg (per os) 6 h after intra-tracheal instillation of LPS. Vehicle-treated mice were used as controls. Twenty-four hours after LPS challenge, bronchoalveolar lavage fluid (BALF), and lung samples were collected for analyses. They were evaluated by monitoring the expression of NF-κB, JNK, and cytokine genes and proteins, as well as cell migration and lung function. All doses of galloyl-HHDP-glucose inhibited LPS-induced JNK and NF-κB activation. Likewise, the galloyl-HHDP-glucose-treated animals presented reduced expression of the TNF-α, IL-6, and IL-1β genes in the lungs and reduced TNF-α, IL-6, IL-1β, and IL-8 protein levels when compared with the vehicle-treated LPS-challenged mice. In addition, the ALI mice treated with galloyl-HHDP-glucose also presented reduced lung inflammatory cell accumulation, especially that of neutrophils, in their BALF and lungs. In addition, galloyl-HHDP-glucose treatment markedly ameliorated the LPS-induced pulmonary mechanism complications and attenuated weight loss. Overall, we showed for the first time that galloyl-HHDP-glucose protects against ALI, and may be useful for treating ALI and other inflammatory disorders.
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Affiliation(s)
- Aruanã Joaquim Matheus Costa Rodrigues Pinheiro
- Programa de Pós-Graduação, Universidade CEUMA, São Luís, Brazil.,Programa de Pós-Graduação da Rede BIONORTE, Universidade Estadual do Maranhão, São Luís, Brazil.,Departamento do Curso de Farmácia, Faculdade Pitágoras, São Luis, Brazil
| | | | | | - Carla Máximo Prado
- Department of Biosciences, Federal University of São Paulo, Santos, Brazil.,Department of Medicine, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Márcia Isabel Bittencourt-Mernak
- Department of Biosciences, Federal University of São Paulo, Santos, Brazil.,Department of Medicine, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Fernanda Paula Roncon Santana
- Department of Biosciences, Federal University of São Paulo, Santos, Brazil.,Department of Medicine, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | | | | | - Eduardo Martins de Sousa
- Programa de Pós-Graduação, Universidade CEUMA, São Luís, Brazil.,Programa de Pós-Graduação da Rede BIONORTE, Universidade Estadual do Maranhão, São Luís, Brazil
| | | | | | - Angela Falcai
- Programa de Pós-graduação, Mestrado em Meio Ambiente, Universidade CEUMA, São Luís, Brazil
| | - Lidio Gonçalves Lima-Neto
- Programa de Pós-Graduação, Universidade CEUMA, São Luís, Brazil.,Programa de Pós-Graduação da Rede BIONORTE, Universidade Estadual do Maranhão, São Luís, Brazil.,Departamento do Curso de Medicina, Universidade CEUMA, São Luís, Brazil
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da Costa-Silva TA, Conserva GAA, Galisteo AJ, Tempone AG, Lago JHG. Antileishmanial activity and immunomodulatory effect of secosubamolide, a butanolide isolated from Nectandra oppositifolia (Lauraceae). J Venom Anim Toxins Incl Trop Dis 2019; 25:e20190008. [PMID: 31467511 PMCID: PMC6707387 DOI: 10.1590/1678-9199-jvatitd-2019-0008] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 06/27/2019] [Indexed: 01/15/2023] Open
Abstract
Background: Visceral leishmaniasis is a complex neglected tropical disease caused by
Leishmania donovani complex. Its current treatment
reveals strong limitations, especially high toxicity. In this context,
natural products are important sources of new drug alternatives for VL
therapy. Therefore, the antileishmanial and immunomodulatory activity of
compounds isolated from Nectandra oppositifolia (Lauraceae)
was investigated herein. Methods: The n-hexane extract from twigs of N.
oppositifolia were subjected to HPLC/HRESIMS and
bioactivity-guided fractionation to afford compounds 1 and
2 which were evaluated in vitro against
Leishmania (L.) infantum
chagasi and NCTC cells. Results: The n-hexane extract displayed activity against
L. (L.) infantum
chagasi and afforded isolinderanolide E
(1) and secosubamolide A (2),
which were effective against L. (L.)
infantum chagasi promastigotes, with IC50
values of 57.9 and 24.9 µM, respectively. Compound 2 was
effective against amastigotes (IC50 = 10.5 µM) and displayed
moderate mammalian cytotoxicity (CC50 = 42 µM). The
immunomodulatory studies of compound 2 suggested an
anti-inflammatory activity, with suppression of IL-6, IL-10, TNF with lack
of nitric oxide. Conclusion: This study showed the antileishmanial activity of compounds 1
and 2 isolated from N. oppositifolia.
Furthermore, compound 2 demonstrated an antileishmanial
activity towards amastigotes associated to an immunomodulatory effect.
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Affiliation(s)
- Thais A da Costa-Silva
- Center of Natural Sciences and Humanities, Federal University of ABC (UFBAC), São Paulo, SP, Brazil
| | - Geanne A Alves Conserva
- Center of Natural Sciences and Humanities, Federal University of ABC (UFBAC), São Paulo, SP, Brazil
| | - Andrés J Galisteo
- Institute of Tropical Medicine, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Adolfo Lutz Institute (IAL), São Paulo, SP, Brazil
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC (UFBAC), São Paulo, SP, Brazil
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Morais TR, Costa-Silva TA, Ferreira DD, Novais BJ, Torrecilhas ACT, Tempone AG, Lago JHG. Antitrypanosomal activity and effect in plasma membrane permeability of (−)-bornyl p-coumarate isolated from Piper cernuum (Piperaceae). Bioorg Chem 2019; 89:103001. [DOI: 10.1016/j.bioorg.2019.103001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 05/13/2019] [Accepted: 05/19/2019] [Indexed: 01/04/2023]
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Lima ML, Romanelli MM, Borborema SE, Johns DM, Migotto AE, Lago JHG, Tempone AG. Antitrypanosomal activity of isololiolide isolated from the marine hydroid Macrorhynchia philippina (Cnidaria, Hydrozoa). Bioorg Chem 2019; 89:103002. [DOI: 10.1016/j.bioorg.2019.103002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 05/16/2019] [Accepted: 05/19/2019] [Indexed: 01/11/2023]
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Brito JR, da Costa-Silva TA, Tempone AG, Ferreira EA, Lago JHG. Dibenzylbutane neolignans from Saururus cernuus L. (Saururaceae) displayed anti-Trypanosoma cruzi activity via alterations in the mitochondrial membrane potential. Fitoterapia 2019; 137:104251. [PMID: 31271783 DOI: 10.1016/j.fitote.2019.104251] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 05/31/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 11/29/2022]
Abstract
The MeOH extract from leaves of Saururus cernuus L. (Saururaceae) displayed in vitro activity against trypomastigote forms of T. cruzi (100% of parasite death at 200 μg/mL), suggesting the presence of bioactive compounds. Thus, the bioactivity-guided fractionation was carried out, leading to the isolation of three related neolignan derivatives, identified as threo-austrobailignan-5 (1), threo-austrobailignan-6 (2), and threo-dihydroguaiaretic acid (3). Anti-T. cruzi activity of compounds 1-3 was performed against cell-derived trypomastigotes and intracellular amastigotes. Additionally, the mammalian cytotoxicity was investigated using NCTC cells. Compound 2 was the most effective against extracellular trypomastigotes with IC50 of 3.7 μM, while compound 3 showed activity in both clinically relevant forms of the parasite, trypomastigotes and amastigotes, with IC50 values of 7.0 and 16.2 μM, respectively. However, the structurally related compound 1 was inactive. Based on these results, compounds 2 and 3 were selected to evaluate the mechanism of cellular death. Compound 2 induced alteration in the plasma membrane permeability and consequently in the ROS levels after 120 min of incubation. By using flow cytometry and fluorescence microscopy, compound 3 showed alterations in the mitochondrial membrane potential (ΔΨm) of trypomastigotes. Considering the promising chemical and biological properties of neolignans 2 and 3, these compounds could be used as starting points to develop new lead compounds for Chagas disease.
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Affiliation(s)
- Juliana R Brito
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, Diadema, SP 09972-270, Brazil
| | - Thais A da Costa-Silva
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP 09210-180, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, SP 01246-902, Brazil
| | - Edgard A Ferreira
- School of Engineering, Mackenzie Presbyterian University, São Paulo, SP 01302-907, Brazil.
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, Santo Andre, SP 09210-180, Brazil.
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Bruno de Sousa C, Lago JHG, Macridachis J, Oliveira M, Brito L, Vizetto-Duarte C, Florindo C, Hendrickx S, Maes L, Morais T, Uemi M, Neto L, Dionísio L, Cortes S, Barreira L, Custódio L, Alberício F, Campino L, Varela J. Report of in vitro antileishmanial properties of Iberian macroalgae. Nat Prod Res 2019; 33:1778-1782. [PMID: 29424240 DOI: 10.1080/14786419.2018.1434637] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 11/17/2017] [Accepted: 01/25/2018] [Indexed: 01/30/2023]
Abstract
Here is reported the anti Leishmania infantum activity of 48 hexane, CH2Cl2 and MeOH extracts from 16 macroalgae collected on the Iberian Coast. Seven hexane and CH2Cl2 Cystoseira baccata, Cystoseira barbata, Cystoseira tamariscifolia, Cystoseira usneoides, Dictyota spiralis and Plocamium cartilagineum extracts were active towards promastigotes (IC50 29.8-101.8 μg/mL) inducing strong morphological alterations in the parasites. Hexane extracts of C. baccata and C. barbata were also active against intracellular amastigotes (IC50 5.1 and 6.8 μg/mL, respectively). Fatty acids, triacylglycerols, carotenoids, steroids and meroterpenoids were detected by nuclear magnetic resonance (NMR), and gas chromatography in the Cystoseira extracts. These results suggest that Cystoseira macroalgae contain compounds with antileishmanial activity, which could be explored as scaffolds to the development of novel sources of antiparasitic derivatives.
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Affiliation(s)
| | - João Henrique G Lago
- b Instituto de Ciências Ambientais, Químicas e Farmacêuticas , Universidade Federal de São Paulo , São Paulo , Brazil
| | - Jorge Macridachis
- a Centre of Marine Sciences , University of Algarve , Faro , Portugal
| | - Marta Oliveira
- a Centre of Marine Sciences , University of Algarve , Faro , Portugal
- c Global Health and Tropical Medicine Centre , Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa , Lisboa , Portugal
| | - Luis Brito
- a Centre of Marine Sciences , University of Algarve , Faro , Portugal
| | | | - Cláudia Florindo
- d Programa de Medicina Regenerativa, Departamento de Ciências Biomédicas e Medicina , UAlg , Faro , Portugal
- e Centro de Investigação Biomédica , University of Algarve , Faro , Portugal
| | - Sarah Hendrickx
- f Faculty of Pharmaceutical, Department of Biomedical Sciences, Biomedical and Veterinary Sciences , Antwerp University , Antwerp , Belgium
| | - Louis Maes
- f Faculty of Pharmaceutical, Department of Biomedical Sciences, Biomedical and Veterinary Sciences , Antwerp University , Antwerp , Belgium
| | - Thiago Morais
- b Instituto de Ciências Ambientais, Químicas e Farmacêuticas , Universidade Federal de São Paulo , São Paulo , Brazil
| | - Miriam Uemi
- b Instituto de Ciências Ambientais, Químicas e Farmacêuticas , Universidade Federal de São Paulo , São Paulo , Brazil
| | - Luís Neto
- g Faculdade de Ciências e Tecnologia , University of Algarve , Faro , Portugal
| | - Lídia Dionísio
- g Faculdade de Ciências e Tecnologia , University of Algarve , Faro , Portugal
| | - Sofia Cortes
- c Global Health and Tropical Medicine Centre , Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa , Lisboa , Portugal
| | - Luísa Barreira
- a Centre of Marine Sciences , University of Algarve , Faro , Portugal
| | - Luísa Custódio
- a Centre of Marine Sciences , University of Algarve , Faro , Portugal
| | - Fernando Alberício
- h Institute for Research in Biomedicine , Barcelona Science Park , Barcelona , Spain
| | - Lenea Campino
- c Global Health and Tropical Medicine Centre , Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa , Lisboa , Portugal
| | - João Varela
- a Centre of Marine Sciences , University of Algarve , Faro , Portugal
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Oliveira EA, Brito IA, Lima ML, Romanelli M, Moreira-Filho JT, Neves BJ, Andrade CH, Sartorelli P, Tempone AG, Costa-Silva TA, Lago JHG. Antitrypanosomal Activity of Acetogenins Isolated from the Seeds of Porcelia macrocarpa Is Associated with Alterations in Both Plasma Membrane Electric Potential and Mitochondrial Membrane Potential. J Nat Prod 2019; 82:1177-1182. [PMID: 31046273 DOI: 10.1021/acs.jnatprod.8b00890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
As part of a drug discovery program aimed at the identification of anti- Trypanosoma cruzi metabolites from Brazilian flora, four acetogenins (1-4) were isolated from the seeds of Porcelia macrocarpa and were identified by NMR spectroscopy and HRESIMS. The new compounds 1 and 2 displayed activity against the trypomastigote (IC50 = 0.4 and 3.6 μM) and amastigote (IC50 = 23.0 and 27.7 μM) forms. The structurally related known compound 3 showed less potency to the amastigotes, with an IC50 value of 58 μM, while the known compound 4 was inactive. To evaluate the potential mechanisms for parasite death, parameters were evaluated by fluorometric assays: (i) plasma membrane permeability, (ii) plasma membrane electric potential (ΔΨp), (iii) reactive oxygen species production, and (iv) mitochondrial membrane potential (ΔΨm). The results obtained indicated that compounds 1 and 2 depolarize plasma membranes, affecting ΔΨp and ΔΨm and contributing to the observed cellular damage and disturbing the bioenergetic system. In silico studies of pharmacokinetics and toxicity (ADMET) properties predicted that all compounds were nonmutagenic, noncarcinogenic, nongenotoxic, and weak hERG blockers. Additionally, none of the isolated acetogenins 1-4 were predicted as pan-assay interference compounds.
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Affiliation(s)
- Emerson A Oliveira
- Institute of Environmental, Chemical and Pharmaceutical Sciences , Federal University of São Paulo , São Paulo 09972-270 , Brazil
| | - Ivanildo A Brito
- Center for Natural and Human Sciences , Federal University of ABC , São Paulo 09606-045 , Brazil
| | - Marta L Lima
- Centre for Parasitology and Mycology , Instituto Adolfo Lutz , São Paulo 01246-000 , Brazil
| | - Maiara Romanelli
- Centre for Parasitology and Mycology , Instituto Adolfo Lutz , São Paulo 01246-000 , Brazil
| | | | - Bruno J Neves
- Faculty of Pharmacy , Federal University of Goias , Goias 74605-170 , Brazil
- Laboratory of Cheminformatics , University Center of Anápolis , Goias 75083-515 , Brazil
| | - Carolina H Andrade
- Faculty of Pharmacy , Federal University of Goias , Goias 74605-170 , Brazil
| | - Patricia Sartorelli
- Institute of Environmental, Chemical and Pharmaceutical Sciences , Federal University of São Paulo , São Paulo 09972-270 , Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology , Instituto Adolfo Lutz , São Paulo 01246-000 , Brazil
| | - Thais A Costa-Silva
- Center for Natural and Human Sciences , Federal University of ABC , São Paulo 09606-045 , Brazil
| | - João Henrique G Lago
- Center for Natural and Human Sciences , Federal University of ABC , São Paulo 09606-045 , Brazil
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48
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Varela MT, Costa-Silva TA, Lago JHG, Tempone AG, Fernandes JPS. Evaluation of the antitrypanosoma activity and SAR study of novel LINS03 derivatives. Bioorg Chem 2019; 89:102996. [PMID: 31132603 DOI: 10.1016/j.bioorg.2019.102996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 11/27/2018] [Revised: 03/25/2019] [Accepted: 05/17/2019] [Indexed: 12/18/2022]
Abstract
Chagas' disease is a parasitic infection caused by Trypanosoma cruzi that is still treated by old and toxic drugs. In the search for novel alternatives, natural sources are an important source for new drug prototypes against T. cruzi to further structural exploitation. A set of natural-based compounds (LINS03) was designed, showing promising antitrypanosoma activity and low cytotoxicity to host cells. In this paper, nine novel LINS03 derivatives were evaluated against T. cruzi trypomastigotes and amastigotes. The selectivity was assessed through cytotoxicity assays using NCTC mammalian cells and calculating the CC50/IC50 ratio. The results showed that compounds 2d and 4c are noteworthy, due their high activity against amastigotes (IC50 13.9 and 5.8 µM) and low cytotoxicity (CC50 107.7 µM and >200 µM, respectively). These compounds did not showed alteration on plasma membrane permeability in a Sytox green model. SAR analysis suggested an ideal balance between hydrosolubility and lipophilicity is necessary to improve the activity, and that insertion of a meta-substituent is detrimental to the activity of the amine derivatives but not to the neutral derivatives, suggesting different mechanisms of actions. The results presented herein are valuable for designing novel compounds with improved activity and selectivity to be applied in future studies.
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Affiliation(s)
- Marina T Varela
- Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo, Rua São Nicolau 210, 09913-030 Diadema, SP, Brazil
| | - Thais A Costa-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Av. dos Estados 5001, 09210-580 Santo André, SP, Brazil
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Av. dos Estados 5001, 09210-580 Santo André, SP, Brazil
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, Av. Dr. Arnaldo 351, 01246-000 São Paulo, SP, Brazil.
| | - João Paulo S Fernandes
- Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo, Rua São Nicolau 210, 09913-030 Diadema, SP, Brazil.
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49
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Amaral M, de Sousa FS, Silva TAC, Junior AJG, Taniwaki NN, Johns DM, Lago JHG, Anderson EA, Tempone AG. A semi-synthetic neolignan derivative from dihydrodieugenol B selectively affects the bioenergetic system of Leishmania infantum and inhibits cell division. Sci Rep 2019; 9:6114. [PMID: 30992481 PMCID: PMC6467890 DOI: 10.1038/s41598-019-42273-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 03/26/2019] [Indexed: 01/07/2023] Open
Abstract
Leishmaniasis is a neglected disease that affects more than 12 million people, with a limited therapy. Plant-derived natural products represent a useful source of anti-protozoan prototypes. In this work, four derivatives were prepared from neolignans isolated from the Brazilian plant Nectandra leucantha, and their effects against intracellular amastigotes of Leishmania (L.) infantum evaluated in vitro. IC50 values between 6 and 35 µM were observed and in silico predictions suggested good oral bioavailability, no PAINS similarities, and ADMET risks typical of lipophilic compounds. The most selective (SI > 32) compound was chosen for lethal action and immunomodulatory studies. This compound caused a transient depolarization of the plasma membrane potential and induced an imbalance of intracellular Ca2+, possibly resulting in a mitochondrial impairment and leading to a strong depolarization of the membrane potential and decrease of ATP levels. The derivative also interfered with the cell cycle of Leishmania, inducing a programmed cell death-like mechanism and affecting DNA replication. Further immunomodulatory studies demonstrated that the compound eliminates amastigotes via an independent activation of the host cell, with decrease levels of IL-10, TNF and MCP-1. Additionally, this derivative caused no hemolytic effects in murine erythrocytes and could be considered promising for future lead studies.
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Affiliation(s)
- Maiara Amaral
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil
| | - Fernanda S de Sousa
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, São Paulo, 09972-270, Brazil
| | - Thais A Costa Silva
- Centre of Natural and Human Sciences, Federal University of ABC, Santo André, 09210-580, Brazil
| | - Andrés Jimenez G Junior
- Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, 05403-000, Brazil
| | - Noemi N Taniwaki
- Laboratory of Electron Microscopy, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil
| | - Deidre M Johns
- Department of Biomedical Sciences, Oregon State University, Corvallis, Oregon, 97331, USA
| | - João Henrique G Lago
- Centre of Natural and Human Sciences, Federal University of ABC, Santo André, 09210-580, Brazil
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil.
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50
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Gomes KS, da Costa-Silva TA, Oliveira IH, Aguilar AM, Oliveira-Silva D, Uemi M, Silva WA, Melo LR, Andrade CKZ, Tempone AG, Baldim JL, Lago JHG. Structure-activity relationship study of antitrypanosomal chalcone derivatives using multivariate analysis. Bioorg Med Chem Lett 2019; 29:1459-1462. [PMID: 31000155 DOI: 10.1016/j.bmcl.2019.04.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 03/08/2019] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 01/30/2023]
Abstract
Chagas disease represents one of several neglected diseases with a reduced number of chemotherapeutical drugs including the highly toxic compounds benznidazole and nifurtimox. In this sense, natural products represent an import scaffold for the discovery of new biologically active compounds, in which chalcones are promising representatives due to their antitrypanosomal potential. In this work, a series of 36 chalcone derivatives were synthesized and tested against trypomastigotes of Trypanosoma cruzi. In addition, a detailed investigation on their molecular features was performed. The obtained results suggest that certain molecular features are fundamental for an efficient antitrypanosomal potential of chalcones, such as allylic groups, α,β-unsaturated carbonyl system, and aromatic hydroxyl groups. These results were obtained based on the interpretation of machine-learning and multivariate statistical methods, which revealed the essential characteristics of chalcone prototypes against trypomastigotes of T. cruzi.
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Affiliation(s)
- Kaio S Gomes
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP 09210-580, Brazil
| | - Thais A da Costa-Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP 09210-580, Brazil
| | - Igor H Oliveira
- Departamento de Química, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP 09972-270, Brazil
| | - Andrea M Aguilar
- Departamento de Química, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP 09972-270, Brazil
| | - Diogo Oliveira-Silva
- Departamento de Química, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP 09972-270, Brazil
| | - Miriam Uemi
- Departamento de Química, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP 09972-270, Brazil
| | - Wender A Silva
- Instituto de Química, Universidade de Brasília, Brasília, DF 70910-900, Brazil
| | - Lennine R Melo
- Instituto de Química, Universidade de Brasília, Brasília, DF 70910-900, Brazil
| | | | - Andre G Tempone
- Centro de Parasitologia e Micologia, Instituto Adolfo Lutz, São Paulo, SP 01246-000, Brazil
| | - João L Baldim
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP 09210-580, Brazil.
| | - João Henrique G Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP 09210-580, Brazil.
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