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Silva CA, Véras JH, Ventura JA, de Melo Bisneto AV, de Oliveira MG, Cardoso Bailão EFL, E Silva CR, Cardoso CG, da Costa Santos S, Chen-Chen L. Chemopreventive effect and induction of DNA repair by oenothein B ellagitannin isolated from leaves of Eugenia uniflora in Swiss Webster treated mice. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2023; 86:929-941. [PMID: 37728073 DOI: 10.1080/15287394.2023.2259425] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Oenothein B (OeB) is a dimeric ellagitannin with potent antioxidative, antitumor, immunomodulatory, and anti-inflammatory properties. Despite the promising activities of OeB, studies examining the genotoxic or protective effects of this ellagitannin on DNA are scarce. Therefore, to further comprehensively elucidate the chemopreventive profile of OeB, the aim of this study was to evaluate the mutagenic and antimutagenic actions of OeB using Salmonella typhimurium strains with the Ames test. The micronucleus (MN) test and comet assay were used to assess the anticytotoxic and antigenotoxic effects of OeB on mouse bone marrow cells following differing treatments (pre-, co-, and post-treatment) in response to cyclophosphamide (CPA)-induced DNA damage. In addition, histopathological analyses were performed to assess liver and kidney tissues of Swiss Webster treated mice. Our results did not detect mutagenic or antimutagenic activity attributed to OeB at any concentration in the Ames test. Regarding the MN test, data showed that this ellagitannin exerted antigenotoxic and anticytotoxic effects against CPA-induced DNA damage under all treatment conditions. However, no anticytotoxic action was observed in MN test after pre-treatment with the highest doses of OeB. In addition, OeB demonstrated antigenotoxic effects in the comet assay for all treatments. Histopathological analyses indicated that OeB attenuated the toxic effects of CPA in mouse liver and kidneys. These findings suggest that OeB exerted a chemoprotective effect following pre- and co-treatments and a DNA repair action in post-treatment experiments. Our findings indicate that OeB protects DNA against CPA-induced damaging agents and induces post-damage DNA repair.
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Affiliation(s)
| | | | - Joyce Aves Ventura
- Institute of Biological Sciences, Federal University of Goiás, Goiânia-GO, Brazil
| | | | | | | | | | - Clever Gomes Cardoso
- Institute of Biological Sciences, Federal University of Goiás, Goiânia-GO, Brazil
| | | | - Lee Chen-Chen
- Institute of Biological Sciences, Federal University of Goiás, Goiânia-GO, Brazil
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2
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Milhm ACP, Bonet LFS, Aiub CAF, Siqueira Junior CL. Biochemical characterization and phytotoxic activity of protein extract from Euphorbia tirucalli L. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114903. [PMID: 34890731 DOI: 10.1016/j.jep.2021.114903] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/30/2021] [Accepted: 12/06/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Euphorbia tirucalli L., a tropical and subtropical plant, also known by the popular name avelós, has been used in folk medicine against many diseases as rheumatism, asthma, toothache, and cancer. Studies have shown that natural compounds contained in this plant species may be associated with these functions. However, little is known about its potential toxicity. AIM OF THE STUDY Several proteins conduct biological functions, in particular, proteinases, play a crucial role in many mechanisms of living beings, including plants, animals and microorganisms. However, when poorly regulated, they can generate consequences, such as the non-production of certain substances, or even the abnormal multiplication of cells, which leads to tumors. On the other hand, by regulating these enzymes, proteinase inhibitors act by reducing the activity of proteinases, thus preventing their malfunction. The objective of this work was to evaluate the toxicity of the protein extract of E. tirucalli and to purify a protease inhibitor that may be associated with the biological medicinal functions of the plant. MATERIALS AND METHODS The cytotoxic and mutagenic properties of the protein extract produced from the stem of avelós was investigated using the Ames test. The protein extract was also submitted to a protease inhibitor purification process using the gel filtration chromatography technique and the purified protein was biochemically characterized. RESULTS A protease inhibitor, called tirustatin, was isolated 1.84-fold by Biogel P100. The calculated molecular mass of the isolated protein is 25.97 kDa. The inhibitor was stable at pH 3-10, with pronounced activity at pH 6. Thermostability was observed even at elevated temperature (100 °C) with inhibitory activity increased by 1.14-fold compared to inhibitor activity at room temperature. Incubation at basic pH values for up to 60 min caused little reduction (0.25-fold) in the papain inhibitory activity of tirustatin. The stoichiometry of the papain-tirustatin interaction was 1.5: 1 and 28.8 pM of the inhibitor effected 50% inhibition. With an equilibrium dissociation constant of 8.74 x 10-8M for the papain enzyme, it is possible to evaluate the isolated protein as a non-competitive inhibitor. In addition, the protein extract of E. tirucalli even at the maximum concentration used (20 μg/mL), did not show a cytotoxic and mutagenic profile in a bacterial model. CONCLUSION The results presented in this work provide data that reinforce the idea of the potential use of proteins produced in E. tirucalli as pharmacological and biotechnological agents that can be exploited for the development of efficient drugs.
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Affiliation(s)
- Ana Carolina Pereira Milhm
- Laboratory of Biochemistry and Function of Plant Proteins, Department of Botany, Federal University of the State of Rio de Janeiro, Av. Pasteur, 458, Urca, Brazil.
| | - Luiz Felippe Sarmento Bonet
- Laboratory of Biochemistry and Function of Plant Proteins, Department of Botany, Federal University of the State of Rio de Janeiro, Av. Pasteur, 458, Urca, Brazil.
| | - Claudia Alessandra Fortes Aiub
- Laboratory of Genotoxicity, Department of Genetics and Molecular Biology, Federal University of the State of Rio de Janeiro, R. Frei Caneca, 94 - Centro, Brazil.
| | - César Luis Siqueira Junior
- Laboratory of Biochemistry and Function of Plant Proteins, Research Center on Agricultural Systems, Department of Botany, Federal University of the State of Rio de Janeiro, Av. Pasteur, 458, Urca, Brazil.
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Zhou S, Huang G, Chen G. Synthesis and anti-tumor activity of marine alkaloids. Bioorg Med Chem Lett 2021; 41:128009. [DOI: 10.1016/j.bmcl.2021.128009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/20/2021] [Accepted: 03/28/2021] [Indexed: 12/16/2022]
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4
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Wilke DV, Jimenez PC, Branco PC, Rezende-Teixeira P, Trindade-Silva AE, Bauermeister A, Lopes NP, Costa-Lotufo LV. Anticancer Potential of Compounds from the Brazilian Blue Amazon. PLANTA MEDICA 2021; 87:49-70. [PMID: 33142347 DOI: 10.1055/a-1257-8402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
"Blue Amazon" is used to designate the Brazilian Economic Exclusive Zone, which covers an area comparable in size to that of its green counterpart. Indeed, Brazil flaunts a coastline spanning 8000 km through tropical and temperate regions and hosting part of the organisms accredited for the country's megadiversity status. Still, biodiversity may be expressed at different scales of organization; besides species inventory, genetic characteristics of living beings and metabolic expression of their genes meet some of these other layers. These metabolites produced by terrestrial creatures traditionally and lately added to by those from marine organisms are recognized for their pharmaceutical value, since over 50% of small molecule-based medicines are related to natural products. Nonetheless, Brazil gives a modest contribution to the field of pharmacology and even less when considering marine pharmacology, which still lacks comprehensive in-depth assessments toward the bioactivity of marine compounds so far. Therefore, this review examined the last 40 years of Brazilian natural products research, focusing on molecules that evidenced anticancer potential-which represents ~ 15% of marine natural products isolated from Brazilian species. This review discusses the most promising compounds isolated from sponges, cnidarians, ascidians, and microbes in terms of their molecular targets and mechanisms of action. Wrapping up, the review delivers an outlook on the challenges that stand against developing groundbreaking natural products research in Brazil and on a means of surpassing these matters.
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Affiliation(s)
- Diego V Wilke
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Paula C Jimenez
- Departamento de Ciências do Mar, Instituto do Mar, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - Paola C Branco
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Paula Rezende-Teixeira
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Amaro E Trindade-Silva
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Anelize Bauermeister
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Norberto Peporine Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Ciências Biomoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Leticia V Costa-Lotufo
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
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Zhou S, Huang G. Retracted Article: The synthesis and biological activity of marine alkaloid derivatives and analogues. RSC Adv 2020; 10:31909-31935. [PMID: 35518151 PMCID: PMC9056551 DOI: 10.1039/d0ra05856d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 07/29/2020] [Indexed: 12/11/2022] Open
Abstract
The ocean is the origin of life, with a unique ecological environment, which has given birth to a wealth of marine organisms. The ocean is an important source of biological resources and tens of thousands of monomeric compounds have been separated from marine organisms using modern separation technology. Most of these monomeric compounds have some kind of biological activity that has attracted extensive attention from researchers. Marine alkaloids are a kind of compound that can be separated from marine organisms. They have complex and special chemical structures, but at the same time, they can show diversity in biological activities. The biological activities of marine alkaloids mainly manifest in the form of anti-tumor, anti-fungus, anti-viral, anti-malaria, and anti-osteoporosis properties. Many marine alkaloids have good medicinal prospects and can possibly be used as anti-tumor, anti-viral, and anti-fungal clinical drugs or as lead compounds. The limited amounts of marine alkaloids that can be obtained by separation, coupled with the high cytotoxicity and low selectivity of these lead compounds, has restricted the clinical research and industrial development of marine alkaloids. Marine alkaloid derivatives and analogues have been obtained via rational drug design and chemical synthesis, to make up for the shortcomings of marine alkaloids; this has become an urgent subject for research and development. This work systematically reviews the recent developments relating to marine alkaloid derivatives and analogues in the field of medical chemistry over the last 10 years (2010-2019). We divide marine alkaloid derivatives and analogues into five types from the point-of-view of biological activity and elaborated on these activities. We also briefly discuss the optimization process, chemical synthesis, biological activity evaluation, and structure-activity relationship (SAR) of each of these compounds. The abundant SAR data provides reasonable approaches for the design and development of new biologically active marine alkaloid derivatives and analogues.
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Affiliation(s)
- Shiyang Zhou
- Chongqing Key Laboratory of Green Synthesis and Application, Active Carbohydrate Research Institute, College of Chemistry, Chongqing Normal University Chongqing 401331 China
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou Hainan 571158 China
| | - Gangliang Huang
- Chongqing Key Laboratory of Green Synthesis and Application, Active Carbohydrate Research Institute, College of Chemistry, Chongqing Normal University Chongqing 401331 China
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Carpes RDM, Alves MDA, Creed JC, da Silva CA, Hamerski L, Garden SJ, Fleury BG, Felzenszwalb I. Mutagenic, genotoxic and cytotoxic studies of invasive corals Tubastraea coccinea and Tubastraea tagusensis. J Appl Toxicol 2019; 40:373-387. [PMID: 31849086 DOI: 10.1002/jat.3911] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/22/2019] [Accepted: 09/12/2019] [Indexed: 11/06/2022]
Abstract
The high diversity of species in the marine environment gives rise to compounds with unique structural patterns not found as natural products in other systems and with great potential for pharmacological, cosmetic and nutritional use. The genus Tubastraea (Class Anthozoa, Order Scleractinia, Family Dendrophylliidae) is characterized as a hard coral without the presence of zooxanthellae. In species of this genus alkaloids derived from the compound aplysinopsin with pharmacological activity are known. In Brazil T. coccinea and T. tagusensis are characterized as non-indigenous and invasive and are currently found along the Brazilian coast, from Santa Catarina to Bahia states. This study aims to analyze the mutagenic, cytotoxic and genotoxic potential of methanolic and ethanolic extracts from T. coccinea and T. tagusensis collected in Ilha Grande Bay, Rio de Janeiro state, Brazil. Bacterial reverse mutation assay on the standard strains TA97, TA98, TA100, TA102 and TA104, in vitro micronucleus formation test and colorimetric assays for cytotoxic signals on the cell lines HepG2 and RAW264.7 were used. We also synthesized an oxoaplysinopsin derivate alkaloid (APL01) for comparative purposes. No mutagenic (250; 312.5; 375; 437.5 and 500 μg/plate) or genotoxic (0.05; 0.5; 5.0; 50 and 500 μg/mL) effects were observed in any sample tested for all measured concentrations. Cytotoxic responses were observed for eukaryotic cells in all tested samples at 500 and 5000 μg/mL concentrations. Cytotoxicity found in the WST-1 assay was independent of the metabolism of substances present in samples compositions. The cytotoxicity observed in the LDH release assay depended on metabolism.
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Affiliation(s)
- Raphael de Mello Carpes
- Laboratory of Environmental Mutagenesis, Department of Biophysics and Biometry, University of the State of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Sun Coral Research, Technological Development and Innovation Network, Instituto Brasileiro de Biodiversidade - BrBio, Rio de Janeiro, RJ, Brazil
| | - Matteus de Assis Alves
- Laboratory of Environmental Mutagenesis, Department of Biophysics and Biometry, University of the State of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Joel Christopher Creed
- Department of Ecology, University of the State of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Sun Coral Research, Technological Development and Innovation Network, Instituto Brasileiro de Biodiversidade - BrBio, Rio de Janeiro, RJ, Brazil
| | - Carla Amaral da Silva
- Laboratory of Natural Products, Institute of Research on Natural Products, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Sun Coral Research, Technological Development and Innovation Network, Instituto Brasileiro de Biodiversidade - BrBio, Rio de Janeiro, RJ, Brazil
| | - Lidilhone Hamerski
- Laboratory of Natural Products, Institute of Research on Natural Products, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Sun Coral Research, Technological Development and Innovation Network, Instituto Brasileiro de Biodiversidade - BrBio, Rio de Janeiro, RJ, Brazil
| | - Simon John Garden
- Department of Organic Chemistry, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Sun Coral Research, Technological Development and Innovation Network, Instituto Brasileiro de Biodiversidade - BrBio, Rio de Janeiro, RJ, Brazil
| | - Beatriz Grosso Fleury
- Department of Ecology, University of the State of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Sun Coral Research, Technological Development and Innovation Network, Instituto Brasileiro de Biodiversidade - BrBio, Rio de Janeiro, RJ, Brazil
| | - Israel Felzenszwalb
- Laboratory of Environmental Mutagenesis, Department of Biophysics and Biometry, University of the State of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Sun Coral Research, Technological Development and Innovation Network, Instituto Brasileiro de Biodiversidade - BrBio, Rio de Janeiro, RJ, Brazil
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Gontijo DC, Gontijo PC, Brandão GC, Diaz MAN, de Oliveira AB, Fietto LG, Leite JPV. Antioxidant study indicative of antibacterial and antimutagenic activities of an ellagitannin-rich aqueous extract from the leaves of Miconia latecrenata. JOURNAL OF ETHNOPHARMACOLOGY 2019; 236:114-123. [PMID: 30853643 DOI: 10.1016/j.jep.2019.03.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/04/2019] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
Ethnopharmacological relevance; Several plant species of Miconia genus are commonly used in Brazilian folk medicine as anti-inflammatory agents and for the treatment of infectious diseases. Infusions and extracts of Miconia species are also reported as analgesic, antimicrobial, antimalarial, antioxidant, anti-inflammatory, antinociceptive, antimutagenic, and antitumoral. Aim of the study; To determine the phytochemical composition of an aqueous extract of Miconia latecrenata leaves and to evaluate its antioxidant, antibacterial, antimutagenic and antigenotoxic activities. Materials and Methods; The following methods were used for the different effects: I) antioxidant - β-carotene/linoleic acid, lipid peroxidation, and DPPH• radical scavenging; II) antibacterial - agar well diffusion and MIC methods); III) antimutagenic assays - Ames Test; and IV) antigenotoxic - Plasmid cleavage test. The phytochemical analysis and phenolic quantification were carried out by UPLC-DAD-ESI-MS/MS and colorimetry, respectively. In addition, statistical correlation analysis was performed aiming to evaluate the Pearson correlation between phenolic compounds and biological assays. Results; A high content of tannins was observed and the ellagitannin isomers of 1,2,3,5-tris-galloyl-4,6-HHDP-glucose were identified as the main constituents of the leaves aqueous extract. High antioxidant effect, in different tests, high antibacterial activity to gram-positive and negative strains, as well as high antimutagenic activity were observed. Statistical analysis showed a high Pearson correlation for the tannin content in relation to the results of the antioxidant and antibacterial tests. In general, the antioxidant action of the aqueous extract showed low correlation with the antimutagenic activity. Conclusions; The present results confirmed the expectations regarding the pharmacological profile of M. latecrenata supporting its therapeutic potential in relation to ROS/RNS related disorders. Furthermore, the phenolic compounds of M. latecrenata can act, in turn, minimizing or inhibiting the biological macromolecules damage, especially DNA.
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Affiliation(s)
- Douglas Costa Gontijo
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil; Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. P.H. Rolfs, s/n - Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Pablo Costa Gontijo
- Setor de Agronomia, Instituto Federal Goiano, Rodovia Sul Goiana, Km 01, CEP, 75901-970, Rio Verde, GO, Brazil
| | - Geraldo Célio Brandão
- Escola de Farmácia, Universidade Federal de Ouro Preto, Morro do Cruzeiro, s/n, CEP, 35400-000, Ouro Preto, MG, Brazil
| | - Marisa Alves Nogueira Diaz
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. P.H. Rolfs, s/n - Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - Alaíde Braga de Oliveira
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, CEP, 31270-901, Belo Horizonte, MG, Brazil
| | - Luciano Gomes Fietto
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. P.H. Rolfs, s/n - Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil
| | - João Paulo Viana Leite
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. P.H. Rolfs, s/n - Campus Universitário, CEP, 36570-000, Viçosa, MG, Brazil.
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Atorvastatin Downregulates In Vitro Methyl Methanesulfonate and Cyclophosphamide Alkylation-Mediated Cellular and DNA Injuries. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:7820890. [PMID: 29849914 PMCID: PMC5903342 DOI: 10.1155/2018/7820890] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 03/04/2018] [Indexed: 11/23/2022]
Abstract
Statins are 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors, and this class of drugs has been studied as protective agents against DNA damages. Alkylating agents (AAs) are able to induce alkylation in macromolecules, causing DNA damage, as DNA methylation. Our objective was to evaluate atorvastatin (AVA) antimutagenic, cytoprotective, and antigenotoxic potentials against DNA lesions caused by AA. AVA chemopreventive ability was evaluated using antimutagenicity assays (Salmonella/microsome assay), cytotoxicity, cell cycle, and genotoxicity assays in HepG2 cells. The cells were cotreated with AVA and the AA methyl methanesulfonate (MMS) or cyclophosphamide (CPA). Our datum showed that AVA reduces the alkylation-mediated DNA damage in different in vitro experimental models. Cytoprotection of AVA at low doses (0.1–1.0 μM) was observed after 24 h of cotreatment with MMS or CPA at their LC50, causing an increase in HepG2 survival rates. After all, AVA at 10 μM and 25 μM had decreased effect in micronucleus formation in HepG2 cells and restored cell cycle alterations induced by MMS and CPA. This study supports the hypothesis that statins can be chemopreventive agents, acting as antimutagenic, antigenotoxic, and cytoprotective components, specifically against alkylating agents of DNA.
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Barbosa MCS, de Souza Barbosa C, de Oliveira JT, Moreira NCS, de Miranda Martins NR, Alves Gomes GK, Caldeira CA, Alves e Costa ML, Martins Guimarães DS, Guimarães L, Nascimento CS, de Pilla Varotti F, Ribeiro Viana GH, Santos FVD. Synthesis and evaluation of the mutagenicity of 3-alkylpyridine marine alkaloid analogues with anticancer potential. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 825:31-39. [DOI: 10.1016/j.mrgentox.2017.11.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 11/07/2017] [Accepted: 11/21/2017] [Indexed: 11/16/2022]
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Marine Sponge Natural Products with Anticancer Potential: An Updated Review. Mar Drugs 2017; 15:md15100310. [PMID: 29027954 PMCID: PMC5666418 DOI: 10.3390/md15100310] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 09/28/2017] [Accepted: 10/09/2017] [Indexed: 12/11/2022] Open
Abstract
Despite the huge investment into research and the significant effort and advances made in the search for new anticancer drugs in recent decades, cancer cure and treatment continue to be a formidable challenge. Many sources, including plants, animals, and minerals, have been explored in the oncological field because of the possibility of identifying novel molecular therapeutics. Marine sponges are a prolific source of secondary metabolites, a number of which showed intriguing tumor chemopreventive and chemotherapeutic properties. Recently, Food and Drug Administration-approved drugs derived from marine sponges have been shown to reduce metastatic breast cancer, malignant lymphoma, and Hodgkin's disease. The chemopreventive and potential anticancer activity of marine sponge-derived compounds could be explained by multiple cellular and molecular mechanisms, including DNA protection, cell-cycle modulation, apoptosis, and anti-inflammatory activities as well as their ability to chemosensitize cancer cells to traditional antiblastic chemotherapy. The present article aims to depict the multiple mechanisms involved in the chemopreventive and therapeutic effects of marine sponges and critically explore the limitations and challenges associated with the development of marine sponge-based anticancer strategy.
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De Almeida DT, Felzenszwalb I, Da Costa Mazzei JL, Feitosa S, Fortes Aiub CA. Toxicological assessment of crude palm oil ( Elaeis guineensis Jacq.) used in deep frying of akara (cowpea paste finger food). GRASAS Y ACEITES 2014. [DOI: 10.3989/gya.086913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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López-Saiz CM, Suárez-Jiménez GM, Plascencia-Jatomea M, Burgos-Hernández A. Shrimp lipids: a source of cancer chemopreventive compounds. Mar Drugs 2013; 11:3926-50. [PMID: 24135910 PMCID: PMC3826143 DOI: 10.3390/md11103926] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 09/22/2013] [Accepted: 09/27/2013] [Indexed: 01/02/2023] Open
Abstract
Shrimp is one of the most popular seafoods worldwide, and its lipids have been studied for biological activity in both, muscle and exoskeleton. Free fatty acids, triglycerides, carotenoids, and other lipids integrate this fraction, and some of these compounds have been reported with cancer chemopreventive activities. Carotenoids and polyunsaturated fatty acids have been extensively studied for chemopreventive properties, in both in vivo and in vitro studies. Their mechanisms of action depend on the lipid chemical structure and include antioxidant, anti-proliferative, anti-mutagenic, and anti-inflammatory activities, among others. The purpose of this review is to lay groundwork for future research about the properties of the lipid fraction of shrimp.
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Affiliation(s)
- Carmen-María López-Saiz
- Department of Research and Food Science Graduate Program, University of Sonora, Apartado Postal 1658, Hermosillo, Sonora 83000, Mexico.
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Cabral MES, Dias DDQ, Sales DL, Oliveira OP, Teles DA, Filho JADA, de Sousa JGG, Coutinho HDM, da Costa JGM, Kerntopf MR, Alves RRDN, Almeida WDO. Evaluations of the Antimicrobial Activities and Chemical Compositions of Body Fat from the Amphibians Leptodactylus macrosternum Miranda-Ribeiro (1926) and Leptodactylus vastus Adolf Lutz (1930) in Northeastern Brazil. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:913671. [PMID: 23710241 PMCID: PMC3655571 DOI: 10.1155/2013/913671] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 03/18/2013] [Accepted: 04/04/2013] [Indexed: 12/20/2022]
Abstract
Leptodactylus macrosternum and L. vastus (family: Leptodactylidae) are commonly encountered in the "Caatinga" biome in northern Brazil. The body fat of L. vastus is used as a zootherapeutic for treating a number of human maladies. The aim of this work was to determine the chemical composition of the body fats of L. macrosternum and L. vastus and to evaluate their antimicrobial activities as well as the ecological implications of their use in traditional folk medicine. Oils were extracted from body fat located in the ventral region of L. macrosternum (OLM) and L. vastus (OLV) using hexane as a solvent. The fatty acids were identified by GC-MS. The antimicrobial activities of the oils, either alone or in combination with antibiotics and antifungal drugs, were tested on standard strains of microorganisms as well as on multiresistant strains of Escherichia coli and Staphylococcus. OLM contained 40% saturated and 60% unsaturated fatty acids, while OLV contained 58.33% saturated and 41.67% unsaturated fatty acids. Our results indicated that both OLM and OLV demonstrated relevant antimicrobial activities (with MIC 256 μ g/mL for both) against Pseudomonas aeruginosa and Candida krusei. However, no antimicrobial effects were observed when these oils were combined with antibiotics or antifungal drugs.
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Affiliation(s)
| | | | - Débora Lima Sales
- Laboratory of Zoology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | - Olga Paiva Oliveira
- Laboratory of Zoology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | - Diego Alves Teles
- Laboratory of Zoology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | | | | | - Henrique Douglas Melo Coutinho
- Laboratory of Microbiology and Molecular Biology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | | | - Marta Regina Kerntopf
- Laboratory of Phamacology and Medicinal Chemistry, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
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Taxonomic and functional microbial signatures of the endemic marine sponge Arenosclera brasiliensis. PLoS One 2012; 7:e39905. [PMID: 22768320 PMCID: PMC3388064 DOI: 10.1371/journal.pone.0039905] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Accepted: 05/29/2012] [Indexed: 11/19/2022] Open
Abstract
The endemic marine sponge Arenosclera brasiliensis (Porifera, Demospongiae, Haplosclerida) is a known source of secondary metabolites such as arenosclerins A-C. In the present study, we established the composition of the A. brasiliensis microbiome and the metabolic pathways associated with this community. We used 454 shotgun pyrosequencing to generate approximately 640,000 high-quality sponge-derived sequences (∼150 Mb). Clustering analysis including sponge, seawater and twenty-three other metagenomes derived from marine animal microbiomes shows that A. brasiliensis contains a specific microbiome. Fourteen bacterial phyla (including Proteobacteria, Cyanobacteria, Actinobacteria, Bacteroidetes, Firmicutes and Cloroflexi) were consistently found in the A. brasiliensis metagenomes. The A. brasiliensis microbiome is enriched for Betaproteobacteria (e.g., Burkholderia) and Gammaproteobacteria (e.g., Pseudomonas and Alteromonas) compared with the surrounding planktonic microbial communities. Functional analysis based on Rapid Annotation using Subsystem Technology (RAST) indicated that the A. brasiliensis microbiome is enriched for sequences associated with membrane transport and one-carbon metabolism. In addition, there was an overrepresentation of sequences associated with aerobic and anaerobic metabolism as well as the synthesis and degradation of secondary metabolites. This study represents the first analysis of sponge-associated microbial communities via shotgun pyrosequencing, a strategy commonly applied in similar analyses in other marine invertebrate hosts, such as corals and algae. We demonstrate that A. brasiliensis has a unique microbiome that is distinct from that of the surrounding planktonic microbes and from other marine organisms, indicating a species-specific microbiome.
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Kaezer A, Aiub C, Mazzei J, Ribeiro-Pinto L, Felzenszwalb I. Antimutagenic effect and phenolic content of green and roasted yerba mate beverages in different packages available in the Brazilian market. CYTA - JOURNAL OF FOOD 2012. [DOI: 10.1080/19476337.2011.601429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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