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Falcão LDS, Oliveira IDL, Gurgel RS, de Souza ATF, Mendonça LDS, Usuda ÉO, do Amaral TS, Veggi PC, Campelo PH, de Vasconcellos MC, Albuquerque PM, de Moraes MA. Development of cassava starch-based films incorporated with phenolic compounds produced by an Amazonian fungus. Int J Biol Macromol 2024; 258:128882. [PMID: 38141712 DOI: 10.1016/j.ijbiomac.2023.128882] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/14/2023] [Revised: 12/03/2023] [Accepted: 12/17/2023] [Indexed: 12/25/2023]
Abstract
Drug-release systems have attracted attention over the last few years since they can be used as a substitute for traditional methods of drug delivery. These have the advantage of being directly administered at the treatment site and can maintain the drug at adequate levels for a longer period, thus increasing their efficacy. Starch-based films are interesting candidates for use as matrices for drug release, especially due to starch's non-toxic properties and its biocompatibility. Endophytic fungi are an important source of bioactive molecules, including secondary metabolites such as phenolic compounds with antioxidant activity. In the present study, cassava starch-based films were developed to act as release systems of phenolic compounds with antioxidant activity. The Amazonian endophytic fungus Aspergillus niger MgF2 was cultivated in liquid media, and the fungal extract was obtained by liquid-liquid partition with ethyl acetate. The starch-based films incorporated with the fungal extract were characterized in regards to their physicochemical properties. The release kinetics of the extract from the film and its antioxidant and cytotoxic properties were also evaluated. The films incorporated with the extract presented maximum release after 25 min at 37 °C and pH 6.8. In addition, it was observed that the antioxidant compounds of the fungal extract maintain their activity after being released from the film, and were non-toxic. Therefore, considering the promising physicochemical properties of the extract-incorporated films, and their considerable antioxidant capacity, the films demonstrate great biotechnological potential with diverse applications in the pharmacological and cosmetic industries.
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Affiliation(s)
- Lucas de Souza Falcão
- School of Technology, Amazonas State University, UEA, Manaus, AM, Brazil; Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, UNIFESP, Diadema, SP, Brazil
| | - Isabella de Lima Oliveira
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, UNIFESP, Diadema, SP, Brazil
| | | | | | | | - Érik Oda Usuda
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, UNIFESP, Diadema, SP, Brazil
| | | | - Priscilla Carvalho Veggi
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, UNIFESP, Diadema, SP, Brazil
| | | | | | | | - Mariana Agostini de Moraes
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, UNIFESP, Diadema, SP, Brazil; School of Chemical Engineering, Universidade Estadual de Campinas, UNICAMP, Campinas, SP, Brazil.
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2
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Nunez CV, de Vasconcellos MC, Alaniz L. Editorial: Are natural products, used as antitumoral/antiangiogenic agents, less toxic than synthetic conventional chemotherapy? Front Pharmacol 2022; 13:1055516. [PMID: 36339558 PMCID: PMC9634553 DOI: 10.3389/fphar.2022.1055516] [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: 09/27/2022] [Accepted: 10/12/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Cecilia Veronica Nunez
- Bioprospection and Biotechnology Laboratory, National Institute of Amazonian Research (INPA), Manaus, Brazil
- *Correspondence: Cecilia Veronica Nunez,
| | | | - Laura Alaniz
- CIBA, Northwest Research and Transfer Center of the Province of Buenos Aires (UNNOBA), CIT NOBA (UNNOBA-UNSAdA-CONICET), Junin, Bs.As., Argentina
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da Silva EL, Mesquita FP, de Sousa Portilho AJ, Bezerra ECA, Daniel JP, Aranha ESP, Farran S, de Vasconcellos MC, de Moraes MEA, Moreira-Nunes CA, Montenegro RC. Differences in glucose concentration shows new perspectives in gastric cancer metabolism. Toxicol In Vitro 2022; 82:105357. [PMID: 35427737 DOI: 10.1016/j.tiv.2022.105357] [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: 09/04/2021] [Revised: 03/16/2022] [Accepted: 04/07/2022] [Indexed: 12/06/2022]
Abstract
Gastric cancer (GC) is among the deadliest cancers worldwide despite available therapies, highlighting the need for novel therapies and pharmacological agents. Metabolic deregulation is a potential study area for new anticancer targets, but the in vitro metabolic studies are controversial, as different ranges of glucose used in the culture medium can influence results. In this study, we evaluated cellular viability, glucose uptake, and LDH activity in gastric cell lines when exposed to different glucose concentrations: high (HG, 25 mM), low (LG, 5.5 mM), and free (FG, 0 mM) glucose mediums. Moreover, we evaluated how glucose variations may influence cellular phenotype and the expression of genes related to epithelial-mesenchymal transition (EMT), metabolism, and cancer development in metastatic GC cells (AGP-01). Results showed that in the FG metastatic cells evidenced higher viability when compared with other cell lines and that when exposed to either LG or HG mediums most of the phenotypic assays did not differ. However, cells exposed to LG increased colony formation and mRNA levels of metabolic-related genes when compared to HG medium. Our results recommend LG medium to metabolic studies once glucose concentration is closer to physiological levels. These findings are important to point out new relevant targets in metabolic reprogramming that can be alternatives to current chemotherapies in patients with metastatic GC.
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Affiliation(s)
- Emerson Lucena da Silva
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil
| | - Felipe Pantoja Mesquita
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil
| | - Adrhyann Jullyanne de Sousa Portilho
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil
| | - Emanuel Cintra Austregésilo Bezerra
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil
| | - Julio Paulino Daniel
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil
| | - Elenn Suzany Pereira Aranha
- Biological Activity Laboratory, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Av. General Rodrigo Octavio Jordão Ramos, 1200 - Coroado, Manaus, Brazil
| | - Sarah Farran
- Department of Pathology and Laboratory Medicine, American University of Beirut Medical Center - Riad El-Solh, Beirut, Lebanon
| | - Marne Carvalho de Vasconcellos
- Biological Activity Laboratory, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Av. General Rodrigo Octavio Jordão Ramos, 1200 - Coroado, Manaus, Brazil
| | - Maria Elisabete Amaral de Moraes
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil
| | - Caroline Aquino Moreira-Nunes
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil
| | - Raquel Carvalho Montenegro
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Cel. Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, Brazil.
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Ribeiro PT, Pedrosa TDN, Chaves FCM, Quintans-Júnior LJ, Araújo AADS, Vasconcellos MCD, Maria-Engler SS, Silva CC, Silva FMAD, Koolen HHF, Lima ES, Lima ÁAND. Physicochemical characterization and cosmetic applications of Passiflora nitida Kunth leaf extract. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e19723] [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: 11/22/2022] Open
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Aranha ESP, Portilho AJDS, Bentes de Sousa L, da Silva EL, Mesquita FP, Rocha WC, Araújo da Silva FM, Lima ES, Alves APNN, Koolen HHF, Montenegro RC, Vasconcellos MCD. 22β-hydroxytingenone induces apoptosis and suppresses invasiveness of melanoma cells by inhibiting MMP-9 activity and MAPK signaling. J Ethnopharmacol 2021; 267:113605. [PMID: 33232779 DOI: 10.1016/j.jep.2020.113605] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/11/2020] [Accepted: 11/17/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE 22β-hydroxytingenone (22-HTG) is a quinonemethide triterpene isolated from Salacia impressifolia (Miers) A. C. Smith (family Celastraceae), which has been used in traditional medicine to treat a variety of diseases, including dengue, renal infections, rheumatism and cancer. However, the anticancer effects of 22-HTG and the underlying molecular mechanisms in melanoma cells have not yet been elucidated. AIM OF THE STUDY The present study investigated apoptosis induction and antimetastatic potencial of 22-HTG in SK-MEL-28 human melanoma cells. MATERIALS AND METHODS First, the in vitro cytotoxic activity of 22-HTG in cultured cancer cells was evaluated. Then, cell viability was determined using the trypan blue assay in melanoma cells (SK-MEL-28), which was followed by cell cycle, annexin V-FITC/propidium iodide assays (Annexin/PI), as well as assays to evaluate mitochondrial membrane potential, production of reactive oxygen species (ROS) using flow cytometry. Fluorescence microscopy using acridine orange/ethidium bromide (AO/BE) staining was also performed. RT-qPCR was carried out to evaluate the expression of BRAF, NRAS, and KRAS genes. The anti-invasiveness potential of 22-HTG was evaluated in a three-dimensional (3D) model of reconstructed human skin. RESULTS 22-HTG reduced viability of SK-MEL-28 cells and caused morphological changes, as cell shrinkage, chromatin condensation, and nuclear fragmentation. Furthermore, 22-HTG caused apoptosis, which was demonstrated by increased staining with AO/BE and Annexin/PI. The apoptosis may have been caused by mitochondrial instability without the involvement of ROS production. The expression of BRAF, NRAS, and KRAS, which are important biomarkers in melanoma development, was reduced by the 22-HTG treatment. In the reconstructed skin model, 22-HTG was able to decrease the invasion capacity of melanoma cells in the dermis. CONCLUSIONS Our data indicate that 22-HTG has anti-tumorigenic properties against melanoma cells through the induction of cell cycle arrest, apoptosis and inhibition of invasiveness potential, as observed in the 3D model. As such, the results provide new insights for future work on the utilization of 22-HTG in malignant melanoma treatment.
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Affiliation(s)
- Elenn Suzany Pereira Aranha
- Faculty of Pharmaceutical Sciences, Post Graduate Program in Biodiversity and Biotechnology of the Amazon (Bionorte), Federal University of Amazonas, Manaus, Amazonas, 69080-900, Brazil.
| | | | - Leilane Bentes de Sousa
- Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazonas, 69080-900, Brazil.
| | - Emerson Lucena da Silva
- Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, Ceará, 60430-275, Brazil.
| | - Felipe Pantoja Mesquita
- Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, Ceará, 60430-275, Brazil.
| | - Waldireny C Rocha
- Health and Biotechnology Institute, Federal University of Amazonas, Coari, Amazonas, 69460-000, Brazil.
| | | | - Emerson Silva Lima
- Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazonas, 69080-900, Brazil.
| | | | | | - Raquel Carvalho Montenegro
- Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, Ceará, 60430-275, Brazil.
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Aranha ESP, da Silva EL, Mesquita FP, de Sousa LB, da Silva FMA, Rocha WC, Lima ES, Koolen HHF, de Moraes MEA, Montenegro RC, de Vasconcellos MC. 22β-hydroxytingenone reduces proliferation and invasion of human melanoma cells. Toxicol In Vitro 2020; 66:104879. [PMID: 32360863 DOI: 10.1016/j.tiv.2020.104879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 03/13/2020] [Accepted: 04/27/2020] [Indexed: 12/20/2022]
Abstract
Melanoma is a skin cancer with high invasive potential and high lethality. Considering that quinonemethide triterpenes are described as promising anticancer agents, the aim of this study was to evaluate the effect of 22β-hydroxytingenone (22-HTG) against human melanoma cells. Alamar blue assay was performed in order to evaluate its cytotoxic effect. Thus, subtoxic concentrations (1.0, 2.0, and 2.5 μM) were used to evaluate the effect of this compound on proliferation, migration, metabolism, and invasion. IC50 value against SK-MEL-28 cell line was 4.35, 3.72, and 3.29 μM after 24, 48, and 72 h of incubation, respectively. 22-HTG reduced proliferation, migration and invasion by melanoma cells, with decreased activity of metalloproteinases (MMP-2 and MMP-9). Futhermore, 22-HTG decreased expression of lactate dehydrogenase (LDHA), an enzyme associated with cell metabolism. Howerver, the small reduction in LDHA enzyme activity must have occurred by the cytotoxic effect of 22-HTG. According to the results, 22-HTG interferes with important characteristics of cancer, with anti-proliferative, and anti-invasive effect against melanoma cells. The data suggest that 22-HTG is an effective substance against melanoma cells and it should be considered as a potential anticancer agent.
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Affiliation(s)
- Elenn Suzany Pereira Aranha
- Faculty of Pharmaceutical Sciences, Post Graduate Program in Biodiversity and Biotechnology of the Amazon (Bionorte), Federal University of Amazonas, Manaus, Amazonas, Brazil.
| | - Emerson Lucena da Silva
- Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Felipe Pantoja Mesquita
- Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | - Waldireny C Rocha
- Health and Biotechnology Institute, Federal University of Amazonas, Coari, Amazonas, Brazil
| | - Emerson Silva Lima
- Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, Amazon, Brazil
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Vasconcelos ZS, Ralph ACL, Calcagno DQ, dos Santos Barbosa G, do Nascimento Pedrosa T, Antony LP, de Arruda Cardoso Smith M, de Lucas Chazin E, Vasconcelos TRA, Montenegro RC, de Vasconcellos MC. Anticancer potential of benzothiazolic derivative (E)-2-((2-(benzo[d]thiazol-2-yl)hydrazono)methyl)-4-nitrophenol against melanoma cells. Toxicol In Vitro 2018; 50:225-235. [DOI: 10.1016/j.tiv.2018.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 02/22/2018] [Accepted: 03/01/2018] [Indexed: 10/17/2022]
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8
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Ralph ACL, Calcagno DQ, da Silva Souza LG, de Lemos TLG, Montenegro RC, de Arruda Cardoso Smith M, de Vasconcellos MC. Biflorin induces cytotoxicity by DNA interaction in genetically different human melanoma cell lines. Toxicol In Vitro 2016; 34:237-245. [DOI: 10.1016/j.tiv.2016.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 04/08/2016] [Accepted: 04/08/2016] [Indexed: 11/24/2022]
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9
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Silva LFRE, Lima ES, Vasconcellos MCD, Aranha ESP, Costa DS, Mustafa EV, Morais SKRD, Alecrim MDGC, Nunomura SM, Struwe L, de Andrade-Neto VF, Pohlit AM. In vitro and in vivo antimalarial activity and cytotoxicity of extracts, fractions and a substance isolated from the Amazonian plant Tachia grandiflora (Gentianaceae). Mem Inst Oswaldo Cruz 2014; 108:501-7. [PMID: 23827996 DOI: 10.1590/s0074-02762013000400017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 03/26/2013] [Indexed: 11/22/2022] Open
Abstract
Tachia sp. are used as antimalarials in the Amazon Region and in vivo antimalarial activity of a Tachia sp. has been previously reported. Tachia grandiflora Maguire and Weaver is an Amazonian antimalarial plant and herein its cytotoxicity and antimalarial activity were investigated. Spectral analysis of the tetraoxygenated xanthone decussatin and the iridoid aglyone amplexine isolated, respectively, from the chloroform fractions of root methanol and leaf ethanol extracts was performed. In vitro inhibition of the growth of Plasmodium falciparum Welch was evaluated using optical microscopy on blood smears. Crude extracts of leaves and roots were inactive in vitro. However, chloroform fractions of the root and leaf extracts [half-maximal inhibitory concentration (IC50) = 10.5 and 35.8 µg/mL, respectively] and amplexine (IC50= 7.1 µg/mL) were active in vitro. Extracts and fractions were not toxic to type MRC-5 human fibroblasts (IC50> 50 µg/mL). Water extracts of the roots of T. grandiflora administered by mouth were the most active extracts in the Peters 4-day suppression test in Plasmodium berghei-infected mice. At 500 mg/kg/day, these extracts exhibited 45-59% inhibition five to seven days after infection. T. grandiflora infusions, fractions and isolated substance have potential as antimalarials.
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Affiliation(s)
- Luiz Francisco Rocha e Silva
- Laboratório de Princípios Ativos da Amazônia, Coordenação de Tecnologia e Inovação, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brasil
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Paes ERDC, Braz MG, Lima JTD, Silva MRGD, Sousa LBD, Lima ES, Vasconcellos MCD, Braz JRC. DNA damage and antioxidant status in medical residents occupationally exposed to waste anesthetic gases. Acta Cir Bras 2014; 29:280-6. [DOI: 10.1590/s0102-86502014000400010] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 03/12/2014] [Indexed: 11/21/2022] Open
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11
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Montenegro RC, de Vasconcellos MC, Barbosa GDS, Burbano RMR, Souza LGS, Lemos TLG, Costa-Lotufo LV, de Moraes MO. A novel o-naphtoquinone inhibits N-cadherin expression and blocks melanoma cell invasion via AKT signaling. Toxicol In Vitro 2013; 27:2076-83. [PMID: 23912027 DOI: 10.1016/j.tiv.2013.07.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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: 01/21/2013] [Revised: 07/18/2013] [Accepted: 07/23/2013] [Indexed: 10/26/2022]
Abstract
The down-regulation or loss of epithelial markers is often accompanied by the up-regulation of mesenchymal markers. E-cadherin generally suppresses invasiveness, whereas N-cadherin promotes invasion and metastasis in vitro. The aim of this work is to investigate the role of biflorin, a naphthoquinone with proven anticancer properties, on the expression of N-cadherin and AKT proteins in MDA-MB-435 invasive melanoma cancer cells after 12h of exposure to 1, 2.5 and 5 μM biflorin. Biflorin inhibited MDA-MB-435 invasion in a dose-dependent manner (p<0.01). Likewise, biflorin down-regulated N-cadherin and AKT-1 expression in a dose-dependent manner. Biflorin did not inhibit the adhesion of MDA-MB-435 cells to any tested substrates. Additionally, biflorin blocked the invasiveness of cells by down-regulating N-cadherin, most likely via AKT-1 signaling. As such, biflorin may be a novel anticancer agent and a new prototype for drug design.
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Affiliation(s)
- Raquel Carvalho Montenegro
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa 01-Guamá, Belém/PA, Brazil.
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12
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Silva LFRE, Lima ES, de Vasconcellos MC, Aranha ESP, Costa DS, Mustafa EV, de Morais SKR, Alecrim MDGC, Nunomura SM, Struwe L, de Andrade-Neto VF, Pohlit AM. In vitro and in vivo antimalarial activity and cytotoxicity of extracts, fractions and a substance isolated from the Amazonian plant Tachia grandiflora (Gentianaceae). Mem Inst Oswaldo Cruz 2013. [PMID: 23827996 PMCID: PMC3970616 DOI: 10.1590/0074-0276108042013017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Tachia sp. are used as antimalarials in the Amazon Region and in vivo antimalarial activity of a Tachia sp. has been previously reported. Tachia grandiflora Maguire and Weaver is an Amazonian antimalarial plant and herein its cytotoxicity and antimalarial activity were investigated. Spectral analysis of the tetraoxygenated xanthone decussatin and the iridoid aglyone amplexine isolated, respectively, from the chloroform fractions of root methanol and leaf ethanol extracts was performed. In vitro inhibition of the growth of Plasmodium falciparum Welch was evaluated using optical microscopy on blood smears. Crude extracts of leaves and roots were inactive in vitro. However, chloroform fractions of the root and leaf extracts [half-maximal inhibitory concentration (IC50) = 10.5 and 35.8 µg/mL, respectively] and amplexine (IC50= 7.1 µg/mL) were active in vitro. Extracts and fractions were not toxic to type MRC-5 human fibroblasts (IC50> 50 µg/mL). Water extracts of the roots of T. grandiflora administered by mouth were the most active extracts in the Peters 4-day suppression test in Plasmodium berghei-infected mice. At 500 mg/kg/day, these extracts exhibited 45-59% inhibition five to seven days after infection. T. grandiflora infusions, fractions and isolated substance have potential as antimalarials.
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Affiliation(s)
- Luiz Francisco Rocha e Silva
- Laboratório de Princípios Ativos da Amazônia, Coordenação de
Tecnologia e Inovação, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM,
Brasil,Universidade Federal do Amazonas, Manaus, AM, Brasil,Centro Universitário do Norte, Manaus, AM, Brasil
| | | | | | | | - David Siqueira Costa
- Laboratório de Princípios Ativos da Amazônia, Coordenação de
Tecnologia e Inovação, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM,
Brasil,Centro Universitário do Norte, Manaus, AM, Brasil
| | - Elba Vieira Mustafa
- Laboratório de Princípios Ativos da Amazônia, Coordenação de
Tecnologia e Inovação, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM,
Brasil,Universidade Federal do Amazonas, Manaus, AM, Brasil
| | - Sabrina Kelly Reis de Morais
- Laboratório de Princípios Ativos da Amazônia, Coordenação de
Tecnologia e Inovação, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM,
Brasil,Universidade Federal do Amazonas, Manaus, AM, Brasil
| | | | - Sergio Massayoshi Nunomura
- Laboratório de Princípios Ativos da Amazônia, Coordenação de
Tecnologia e Inovação, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM,
Brasil
| | - Lena Struwe
- Rutgers, The State University of New Jersey, New Brunswick, NJ,
USA
| | | | - Adrian Martin Pohlit
- Laboratório de Princípios Ativos da Amazônia, Coordenação de
Tecnologia e Inovação, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM,
Brasil,Corresponding author:
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dos Santos Torres ZE, Silveira ER, Rocha e Silva LF, Lima ES, de Vasconcellos MC, de Andrade Uchoa DE, Filho RB, Pohlit AM. Chemical composition of Aspidosperma ulei Markgr. and antiplasmodial activity of selected indole alkaloids. Molecules 2013; 18:6281-97. [PMID: 23760029 PMCID: PMC6270234 DOI: 10.3390/molecules18066281] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [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: 04/01/2013] [Revised: 05/15/2013] [Accepted: 05/16/2013] [Indexed: 11/17/2022] Open
Abstract
A new indole alkaloid, 12-hydroxy-N-acetyl-21(N)-dehydroplumeran-18-oic acid (13), and 11 known indole alkaloids: 3,4,5,6-tetradehydro-β-yohimbine (3), 19(E)-hunteracine (4), β-yohimbine (5), yohimbine (6), 19,20-dehydro-17-α-yohimbine (7), uleine (10), 20-epi-dasycarpidone (11), olivacine (8), 20-epi-N-nor-dasycarpidone (14), N-demethyluleine (15) and 20(E)-nor-subincanadine E (12) and a boonein δ-lactone 9, ursolic acid (1) and 1D,1O-methyl-chiro-inositol (2) were isolated from the EtOH extracts of different parts of Aspidosperma ulei Markgr. (Apocynaceae). Identification and structural elucidation were based on IR, MS, ¹H- and ¹³C-NMR spectral data and comparison to literature data. The antiplasmodial and antimalarial activity of 1, 5, 6, 8, 10 and 15 has been previously evaluated and 1 and 10 have important in vitro and in vivo antimalarial properties according to patent and/or scientific literature. With the aim of discovering new antiplasmodial indole alkaloids, 3, 4, 11, 12 and 13 were evaluated for in vitro inhibition against the multi-drug resistant K1 strain of the human malaria parasite Plasmodium falciparum. IC₅₀ values of 14.0 (39.9), 4.5 (16.7) and 14.5 (54.3) mg/mL (mM) were determined for 3, 11 and 12, respectively. Inhibitory activity of 3, 4, 11, 12 and 13 was evaluated against NIH3T3 murine fibroblasts. None of these compounds exhibited toxicity to fibroblasts (IC₅₀ > 50 mg/mL). Of the five compounds screened for in vitro antiplasmodial activity, only 11 was active.
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Affiliation(s)
- Zelina Estevam dos Santos Torres
- Instituto Nacional de Pesquisas da Amazônia, Caixa Postal 2223 - CEP 69080-971, Manaus, Amazonas, Brasil; E-Mails: (Z.E.S.T.); (L.F.R.S.)
- Universidade Federal do Ceará, Caixa Postal 12.200 - CEP 60021-940, Fortaleza, Ceará, Brasil; E-Mails: (E.R.S.); (D.E.A.U.)
| | - Edilberto Rocha Silveira
- Universidade Federal do Ceará, Caixa Postal 12.200 - CEP 60021-940, Fortaleza, Ceará, Brasil; E-Mails: (E.R.S.); (D.E.A.U.)
| | - Luiz Francisco Rocha e Silva
- Instituto Nacional de Pesquisas da Amazônia, Caixa Postal 2223 - CEP 69080-971, Manaus, Amazonas, Brasil; E-Mails: (Z.E.S.T.); (L.F.R.S.)
- Universidade Federal do Amazonas, Avenida General Rodrigo Otávio Jordão Ramos, 3000, CEP 69077-000 Campus Universitário, Manaus, Amazonas, Brasil; E-Mails: (E.S.L.); (M.C.V.)
| | - Emerson Silva Lima
- Universidade Federal do Amazonas, Avenida General Rodrigo Otávio Jordão Ramos, 3000, CEP 69077-000 Campus Universitário, Manaus, Amazonas, Brasil; E-Mails: (E.S.L.); (M.C.V.)
| | - Marne Carvalho de Vasconcellos
- Universidade Federal do Amazonas, Avenida General Rodrigo Otávio Jordão Ramos, 3000, CEP 69077-000 Campus Universitário, Manaus, Amazonas, Brasil; E-Mails: (E.S.L.); (M.C.V.)
| | - Daniel Esdras de Andrade Uchoa
- Universidade Federal do Ceará, Caixa Postal 12.200 - CEP 60021-940, Fortaleza, Ceará, Brasil; E-Mails: (E.R.S.); (D.E.A.U.)
| | - Raimundo Braz Filho
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, CEP 28013-602 Campos dos Goytacazes, Rio de Janeiro, Brasil; E-Mail:
| | - Adrian Martin Pohlit
- Instituto Nacional de Pesquisas da Amazônia, Caixa Postal 2223 - CEP 69080-971, Manaus, Amazonas, Brasil; E-Mails: (Z.E.S.T.); (L.F.R.S.)
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Yamaguchi KKL, Veiga-Junior VF, Pedrosa TDN, Vasconcellos MCD, Lima ES. Atividades biológicas dos óleos essenciais de Endlicheria citriodora, uma lauraceae rica em geranato de metila. QUIM NOVA 2013. [DOI: 10.1590/s0100-40422013000600015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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15
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Lima ES, Pinto ACS, Nogueira KL, e Silva LFR, de Almeida PDO, de Vasconcellos MC, Chaves FCM, Tadei WP, Pohlit AM. Stability and antioxidant activity of semi-synthetic derivatives of 4-nerolidylcatechol. Molecules 2012; 18:178-89. [PMID: 23262447 PMCID: PMC6269653 DOI: 10.3390/molecules18010178] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 11/16/2012] [Accepted: 11/20/2012] [Indexed: 11/19/2022] Open
Abstract
4-nerolidylcatechol (4-NC) is an unstable natural product that exhibits important antioxidant, anti-inflammatory and other properties. It is readily obtainable on a multi-gram scale through straightforward solvent extraction of the roots of cultivated Piper peltatum or P. umbellatum, followed by column chromatography on the resulting extract. Semi-synthetic derivatives of 4-NC with one or two substituent groups (methyl, acetyl, benzyl, benzoyl) on the O atoms have been introduced that have increased stability compared to 4-NC and significant in vitro inhibitory activity against the human malaria parasite Plasmodium falciparum. Antioxidant and anti-inflammatory properties may be important for the antiplasmodial mode of action of 4-NC derivatives. Thus, we decided to investigate the antioxidant properties, cytotoxicity and stability of 4-NC derivatives as a means to explore the potential utility of these compounds. 4-NC showed high antioxidant activity in the DPPH and ABTS assays and in 3T3-L1 cells (mouse embryonic fibroblast), however 4-NC was more cytotoxic (IC50 = 31.4 µM) and more unstable than its derivatives and lost more than 80% of its antioxidant activity upon storage in solution at −20 °C for 30 days. DMSO solutions of mono-O-substituted derivatives of 4-NC exhibited antioxidant activity and radical scavenging activity in the DPPH and ABTS assays that was comparable to that of BHA and BHT. In the cell-based antioxidant model, most DMSO solutions of derivatives of 4-NC were less active on day 1 than 4-NC, quercetin and BHA and more active antioxidants than BHT. After storage for 30 days at −20 °C, DMSO solutions of most of the derivatives of 4-NC were more stable and exhibited more antioxidant activity than 4-NC, quercetin and BHA and exhibited comparable antioxidant activity to BHT. These findings point to the potential of derivatives of 4-NC as antioxidant compounds.
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Affiliation(s)
- Emerson Silva Lima
- Universidade Federal do Amazonas, Avenida General Rodrigo Otávio Jordão Ramos, 3000, 69077-000 Campus Universitário, Manaus, Amazonas, Brazil; E-Mails: (E.S.L.); (P.D.O.A.); (M.C.V.)
| | - Ana Cristina Silva Pinto
- Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, 69067-375 Aleixo, Manaus, Amazonas, Brazil; E-Mails: (A.C.S.P.); (K.L.N.); (L.F.R.S.); (W.P.T.)
| | - Karla Lagos Nogueira
- Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, 69067-375 Aleixo, Manaus, Amazonas, Brazil; E-Mails: (A.C.S.P.); (K.L.N.); (L.F.R.S.); (W.P.T.)
| | - Luiz Francisco Rocha e Silva
- Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, 69067-375 Aleixo, Manaus, Amazonas, Brazil; E-Mails: (A.C.S.P.); (K.L.N.); (L.F.R.S.); (W.P.T.)
| | - Patricia Danielle Oliveira de Almeida
- Universidade Federal do Amazonas, Avenida General Rodrigo Otávio Jordão Ramos, 3000, 69077-000 Campus Universitário, Manaus, Amazonas, Brazil; E-Mails: (E.S.L.); (P.D.O.A.); (M.C.V.)
| | - Marne Carvalho de Vasconcellos
- Universidade Federal do Amazonas, Avenida General Rodrigo Otávio Jordão Ramos, 3000, 69077-000 Campus Universitário, Manaus, Amazonas, Brazil; E-Mails: (E.S.L.); (P.D.O.A.); (M.C.V.)
| | - Francisco Celio Maia Chaves
- Embrapa Amazônia Ocidental, Rodovia AM-010, Km 29, Zona Rural, 69010-970 Caixa Postal 319 Manaus, Amazonas, Brazil; E-Mail:
| | - Wanderli Pedro Tadei
- Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, 69067-375 Aleixo, Manaus, Amazonas, Brazil; E-Mails: (A.C.S.P.); (K.L.N.); (L.F.R.S.); (W.P.T.)
| | - Adrian Martin Pohlit
- Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, 69067-375 Aleixo, Manaus, Amazonas, Brazil; E-Mails: (A.C.S.P.); (K.L.N.); (L.F.R.S.); (W.P.T.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-92-3643-3078; Fax: +55-92-3643-3079
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Bezerra DP, Moura DJ, Rosa RM, de Vasconcellos MC, e Silva ACR, de Moraes MO, Silveira ER, Lima MAS, Henriques JAP, Costa-Lotufo LV, Saffi J. Evaluation of the genotoxicity of piplartine, an alkamide of Piper tuberculatum, in yeast and mammalian V79 cells. Mutat Res 2008; 652:164-74. [PMID: 18372210 DOI: 10.1016/j.mrgentox.2008.02.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2007] [Revised: 01/31/2008] [Accepted: 02/04/2008] [Indexed: 05/26/2023]
Abstract
The genus Piper belongs to the Piperaceae family, and includes species of commercial and medicinal importance. Chemical studies on Piper species resulted in the isolation of several biologically active molecules, including alkaloid amides, such as piplartine. This molecule, isolated from Piper tuberculatum, has significant cytotoxic activity against tumor cell lines, and presents antifungal, anti-platelet aggregation, anxiolytic, and antidepressant effects. In order to understand the biological properties of piplartine, this study investigated the genotoxicity and the induction of apoptosis by piplartine in V79 cells and its mutagenic and recombinogenic potential in Saccharomyces cerevisiae. Piplartine induced dose-dependent cytotoxicity in S. cerevisiae cultures in either stationary -- or exponential growth phase. In addition, piplartine was not mutagenic when cells were treated during exponential-growth phase and kept in buffer solution, but it increased the frequencies of point, frameshift, and forward mutations when cells were treated in medium during growth. Piplartine treatment induced DNA strand breaks in V79 cells, as detected by neutral and alkaline comet assay. In cell cycle analysis, piplartine induced G2/M cell cycle arrest, probably as a consequence of the DNA damage induced and repair. Moreover, piplartine treatment induced apoptosis in a dose-dependent manner, as observed by a decrease in mitochondrial membrane potential and an increase in internucleosomal DNA fragmentation. These data suggest that the DNA damage caused by piplartine induces G2/M cell cycle arrest, followed by apoptosis. Moreover, we suggest that cells surviving piplartine-induced DNA damage can accumulate mutations, since this alkaloid was mutagenic and recombinogenic in S. cerevisiae assays.
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Affiliation(s)
- Daniel Pereira Bezerra
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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17
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Vasconcellos MCD, Bezerra DP, Fonseca AM, Pereira MRP, Lemos TLG, Pessoa ODL, Pessoa C, Moraes MOD, Alves APNN, Costa-Lotufo LV. Antitumor activity of biflorin, an o-naphthoquinone isolated from Capraria biflora. Biol Pharm Bull 2007; 30:1416-21. [PMID: 17666796 DOI: 10.1248/bpb.30.1416] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Pharmacological studies with an aqueous extract obtained from leaves of Capraria biflora showed potent cytotoxic, analgesic, antimicrobial and anti-inflammatory activities. It has been demonstrated that biflorin possesses an in vitro cytotoxic activity against tumor cells. The in vivo antitumor activity of biflorin was evaluated on two mouse models, sarcoma 180 and Ehrlich carcinoma. Biflorin was active against both tumors with a very similar profile. In addition, biflorin was also able to increase the response elicited by 5-FU in mice inoculated with both tumors. The results showed a decrease in Ki67 staining in tumor cells from treated-animals when compared with non-treated groups, which suggests an inhibition of tumor proliferation rate. Histopathological analysis from kidneys and liver showed that biflorin possessed weak and reversible toxic effects. It was also demonstrated that biflorin acts as an immunoadjuvant agent, rising the production of ovalbumin-specific antibodies and inducing a discreet increase of the white pulp and nest of megakaryocytic in spleen of treated mice, which can be related to its antitumor properties.
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Affiliation(s)
- Marne Carvalho de Vasconcellos
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, 60430-270 Fortaleza, Ceará, Brazil
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Montenegro RC, de Vasconcellos MC, Silva Bezerra F, Andrade-Neto M, Pessoa C, de Moraes MO, Costa-Lotufo LV. Pisosterol induces monocytic differentiation in HL-60 cells. Toxicol In Vitro 2007; 21:795-800. [PMID: 17367986 DOI: 10.1016/j.tiv.2007.01.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2006] [Revised: 01/11/2007] [Accepted: 01/22/2007] [Indexed: 11/25/2022]
Abstract
The aim of this study was to determine whether the antiproliferative effects observed for pisosterol, a cytotoxic triterpene isolated from Pisolithus tinctorius, are related to cell differentiation induction using HL-60 cell line as a model. Also, the effects of pisosterol on normal human cells were examined in peripheral blood mononuclear cells (PBMC). The effects on cell viability and morphological changes were the first indications showing that pisosterol induces HL-60 differentiation. The demonstration of blue tetrazolium reduction in HL-60 cells exposed to pisosterol demonstrated differentiation in a dose- and time-dependent manner, reaching a maximum effect after 72 h incubation at 5 microg/mL. Assays for alpha-naphthyl acetate esterase activity indicated that pisosterol triggers differentiation towards a monocytic cell-like pathway. The antiproliferative effect of pisosterol was determined by inhibition of DNA synthesis based on BrdU incorporation into HL-60 proliferating cells. It appears that pisosterol-treated cells, despite displaying a differentiated phenotype, continued to proliferate at all doses tested after 72 h, with a slightly decrease at 5 microg/mL. Apoptosis was observed in pisosterol-treated cells in a dose-dependent way. Nevertheless, after the same period of incubation, no cytotoxicity was detected in PBMC in the presence of pisosterol even at 25 microg/mL, providing some evidence that pisosterol may be selective for tumor cells. The mechanisms underlying the effect of pisosterol in leukemia cells indicates the induction of a monocytic cell-like differentiation, suggesting that this compound could be used in the development of new pharmacological tools with potential therapeutic value in the management of leukemia with fewer side effects.
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Affiliation(s)
- Raquel Carvalho Montenegro
- Laboratório de Oncologia Experimental, Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, P.O. Box 3157, 60430-270 Fortaleza, Ceará, Brazil
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