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França WWM, da Silva AM, Diniz EGM, Silva HAMF, Pereira DR, De Melo AMMA, Coelho LCBB, de Azevedo Albuquerque MCP, de Araújo HDA, de Lima Aires A. Toxic, cytotoxic and genotoxic effect of plumbagin in the developmental stages of Biomphalaria glabrata (Say, 1818-intermediate host) and cercaricidal activity against the infectious agent of schistosomiasis mansoni. PEST MANAGEMENT SCIENCE 2022; 78:5172-5183. [PMID: 36053991 DOI: 10.1002/ps.7136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 06/07/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Snails of the genus Biomphalaria are intermediate hosts of Schistosoma mansoni, the main etiological agent of schistosomiasis mansoni, which affects about 236.6 million people in tropical and subtropical regions of the world. The World Health Organization recommends the population control of vector snails as one of the strategies to reduce the prevalence and incidence of schistosomiasis. In this study, molluscicidal and antiparasitic activities of plumbagin, a naturally sourced naphthoquinone with a range of biological effects, were evaluated against B. glabrata and cercariae of S. mansoni. RESULTS After 24 h of exposure, plumbagin demonstrated molluscicidal activity at low concentrations against embryos (LC50 of 0.56, 0.93, 0.68, 0.51 and 0.74 μg mL-1 for the blastula, gastrula, trochophore, veliger and hippo stage, respectively) and adult snails (LC50 of 3.56 μg mL-1 ). There were no changes in exposed snails' fecundity or fertility; however, plumbagin was able to increase the frequency of DNA damage and the number of hemocytes, with apoptosis and binucleation being the main hemocyte alterations. In addition, plumbagin showed death of S. mansoni cercariae in the concentration of 1.5 μg mL-1 in 60 min, while showing moderate toxicity to Artemia salina. CONCLUSION Plumbagin proved to be a promising substance for the control of B. glabrata population, intermediate host of S. mansoni, as well as the cercariae, infective stage for humans (definitive host), while being moderately toxic to A. salina, a crustacean widely used in ecotoxicity tests. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Wilza Wanessa Melo França
- Centro de Biociências, Programa de Pós-graduação em Morfotecnologia, Universidade Federal de Pernambuco, Recife, Brazil
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, Brazil
| | - Adriana Maria da Silva
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | - Dewson Rocha Pereira
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | - Mônica Camelo Pessoa de Azevedo Albuquerque
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, Brazil
- Departamento de Medicina Tropical, Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Hallysson Douglas Andrade de Araújo
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, Brazil
- Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
| | - André de Lima Aires
- Centro de Biociências, Programa de Pós-graduação em Morfotecnologia, Universidade Federal de Pernambuco, Recife, Brazil
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, Brazil
- Departamento de Medicina Tropical, Centro de Ciências Médicas, Universidade Federal de Pernambuco, Recife, Brazil
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Martins DDL, do Amaral E Silva NA, Ferreira VF, Rangel LDS, Dos Santos JAA, Faria RX. Molluskicidal activity of 3-aryl-2-hydroxy-1,4-naphthoquinones against Biomphalaria glabrata. Acta Trop 2022; 231:106414. [PMID: 35346667 DOI: 10.1016/j.actatropica.2022.106414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/01/2022] [Accepted: 03/17/2022] [Indexed: 11/27/2022]
Abstract
Schistosomiasis is the second most prevalent parasitic infectious disease after malaria, which affects millions of people worldwide and causes health and socioeconomic problems. The snail Biomphalaria glabrata is an intermediate host for the helminth, which is the causative agent of schistosomiasis: Schistosoma mansoni. One crucial strategy for controlling the disease is the eradication of the snail host. Niclosamide is the unique molluskicide applied in large-scale control programs, but its selectivity to other species is not adequate. Therefore, there is an urgent need to develop new molluskicides that are inexpensive, safe, and selective. Quinones are ubiquitous, playing important biological roles in fungi, plants, and others. Many synthetic molecules with relevant biological activities that contain the quinone nucleus in their structure are on the market in the therapy of cancer, malaria, or toxoplasmosis, for example. Derivatives of quinones are tools in the development of new molluskicides for Abbott laboratories. In the present work, 3-aryl-2‑hydroxy-1,4-naphthoquinones (ANs) were tested for molluskicide activity against Biomphalaria glabrata. The lethal concentration was determined for 48 h of continuous exposure. The naphthoquinones were found to have molluskicide properties. AN-15 was recorded as the highest mortality. Additionally, this analog exhibited in silico reduced ambient toxicity when compared to niclosamide. The findings of this study demonstrate that 3-aryl-2‑hydroxy-1,4-naphthoquinones are effective for the management of Biomphalaria glabrata under laboratory conditions.
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Affiliation(s)
- Daniela de Luna Martins
- Instituto de Química, Laboratório de Catálise e Síntese (LabCSI), Laboratório 413, Campus do Valonguinho, Centro, Outeiro de São João Batista s/n, Universidade Federal Fluminense, Niterói, RJ 24020-141, Brazil.
| | - Nayane Abreu do Amaral E Silva
- Instituto de Química, Laboratório de Catálise e Síntese (LabCSI), Laboratório 413, Campus do Valonguinho, Centro, Outeiro de São João Batista s/n, Universidade Federal Fluminense, Niterói, RJ 24020-141, Brazil
| | - Vitor F Ferreira
- Departamento de Tecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal Fluminense, R. Dr. Mario Vianna, 523 - Santa Rosa, Niterói, RJ 24241-002, Brazil
| | - Leonardo da Silva Rangel
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ 21040-360, Brazil; Postgraduate Program in Sciences and Biotechnology, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - José Augusto Albuquerque Dos Santos
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ 21040-360, Brazil
| | - Robson Xavier Faria
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ 21040-360, Brazil; Postgraduate Program in Sciences and Biotechnology, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil.
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Zheng L, Deng L, Zhong Y, Wang Y, Guo W, Fan X. Molluscicides against the snail-intermediate host of Schistosoma: a review. Parasitol Res 2021; 120:3355-3393. [PMID: 34486075 PMCID: PMC8418967 DOI: 10.1007/s00436-021-07288-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/10/2021] [Indexed: 11/29/2022]
Abstract
Schistosomiasis, a neglected tropical disease (NTD), is one of the most prevalent parasitoses in the World. Certain freshwater snail species are the intermediate host in the life cycle of schistosome species. Controlling snails employing molluscicides is an effective, quick, and convenient intervention strategy to prevent the spread of Schistosoma species in endemic regions. Advances have been made in developing both synthetic molluscicides and molluscicides derived from plants. However, at present, the development of molluscicides is not adapted to the actual demand for snails and schistosoma controlling. We undertake a systematic review of exploitation and application of synthetic molluscicides and molluscicides derived from plants to combat intermediate host snails. The detailed molluscicidal activity, structure–activity relationship, structural feature, and possible mechanism of some molluscicides are also highlighted, which may afford an important reference for the design of new, more effective molluscicides with low environmental impact and realize the aim of controlling schistosome at transmission stages.
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Affiliation(s)
- Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Ling Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Yatang Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
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Oliveira KM, Peterson EJ, Carroccia MC, Cominetti MR, Deflon VM, Farrell NP, Batista AA, Correa RS. Ru(II)-Naphthoquinone complexes with high selectivity for triple-negative breast cancer. Dalton Trans 2021; 49:16193-16203. [PMID: 32329497 DOI: 10.1039/d0dt01091j] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Six new ruthenium(ii) complexes with lapachol (Lap) and lawsone (Law) with the general formula [Ru(L)(P-P)(bipy)]PF6, where L = Lap or Law, P-P = 1,2'-bis(diphenylphosphino)ethane (dppe), 1,4'-bis(diphenylphosphino)butane (dppb), 1,1'-bis(diphenylphosphino)ferrocene (dppf) and bipy = 2,2'-bipyridine, were synthesized, fully characterized by elemental analysis, molar conductivity, NMR, cyclic voltammetry, UV-vis, IR spectroscopies and three of them by X-ray crystallography. All six complexes were active against breast (MCF-7 and MDA-MB-231) and prostate (DU-145) cancer cell lines with lower IC50 values than cisplatin. Complex [Ru(Lap)(dppe)(bipy)]PF6 (1a) showed significant selectivity for MDA-MB-231, a model of triple-negative breast cancer (TNBC), as compared to the "normal-like" human breast epithelial cell line, MCF-10A. Complex (1a) inhibited TNBC colony formation and induced loss of cellular adhesion. Furthermore, the complex (1a) induced mitochondrial dysfunction and generation of ROS, as is involved in the apoptotic cell death pathway. Preferential cellular uptake of complex (1a) was observed in MDA-MB-231 cells compared to MCF-10A cells, consistent with the observed selectivity for tumorigenic vs. non-tumorigenic cells. Taken together, these results indicate that ruthenium complexes containing lapachol and lawsone as ligands are promising candidates as chemotherapeutic agents.
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Affiliation(s)
- Katia M Oliveira
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, Rodovia Washington Luiz, KM 235 CP 676, CEP 13561-901, São Carlos, SP, Brazil.
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Stalin A, Dhivya P, Lin D, Feng Y, Asharaja AC, Gandhi MR, Kannan BS, Kandhasamy S, Reegan AD, Chen Y. Synthesis, molecular docking and mosquitocidal efficacy of lawsone and its derivatives against the dengue vector Aedes aegypti L. (Diptera: Culicidae). Med Chem 2021; 18:170-180. [PMID: 34315380 DOI: 10.2174/1573406417666210727121654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 01/01/2021] [Accepted: 01/11/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Aedes aegypti is the primary dengue vector, a significant public health problem in many countries. Controlling the growth of Ae. aegypti is the biggest challenge in the mosquito control program, and there is a need for finding bioactive molecules to control Ae. aegypti in order to prevent dengue virus transmission. OBJECTIVE To assess the mosquitocidal property of lawsone and its 3-methyl-4H-chromen-3-yl-1-phenylbenzo[6,7]chromeno[2,3,c]pyrazole-dione derivatives (6a-6h) against various life stages of Ae. aegypti. Besides, to study the mode of action of the active compound by molecular docking and histopathological analysis. METHODS All derivatives were synthesized from the reaction between 2-hydroxy-1,4-naphthoquinone, chromene-3-carbaldehyde, and 1-phenyl-3-methyl-pyrazol-5-one by using one pot sequential multicomponent reaction. The mosquito life stages were subjected to diverse concentrations ranging from 1.25, 2.5, 5.0, and 10 ppm for lawsone and its derivatives. The structure of all synthesized compounds was characterized by spectroscopic analysis. Docking analysis was performed using autodock tools. Midgut sections of Ae. aegypti larvae were analyzed for histopathological effects. RESULTS Among the nine compounds screened, derivative 6e showed the highest mortality on Ae. aegypti life stages. The analyzed LC50 and LC90 results of derivative 6e were 3.01, 5.87 ppm, and 3.41, 6.28 ppm on larvae and pupae of Ae. aegypti, respectively. In the ovicidal assay, the derivative 6e recorded 47.2% egg mortality after 96-hour post-exposure to 10 ppm concentration. In molecular docking analysis, the derivative 6e confirmed strong binding interaction (-9.09 kcal/mol and -10.17 kcal/mol) with VAL 60 and HIS 62 of acetylcholinesterase 1 (AChE1) model and LYS 255, LYS 263 of kynurenine aminotransferase of Ae. aegypti, respectively. The histopathological results showed that the derivative 6e affected the columnar epithelial cells (CC) and peritrophic membrane (pM). CONCLUSION The derivative 6e is highly effective in the life stages of Ae. aegypti mosquito and it could be used in the integrated mosquito management programme.
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Affiliation(s)
- Antony Stalin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Paul Dhivya
- Department of Chemistry, Nirmala College for Women, Coimbatore 641018, Tamil Nadu, India
| | - Ding Lin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Yue Feng
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Antony Cruz Asharaja
- P.G. and Research Department of Zoology, Pasumpon Muthuramalinga Thevar College, Melaneelithanallur 627 953, Sankarankovil, Tenkasi, Tamil Nadu, India
| | | | - Balakrishnan Senthamarai Kannan
- Department of Chemistry, Tirunelveli Dakshina Mara Nadar Sangam (T D M N S) College, Valliyur, Tirunelveli 627113, Tamil Nadu, India
| | - Subramani Kandhasamy
- Stem Cell and Molecular Biology Laboratory, Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Appadurai Daniel Reegan
- National Centre for Disease Control, NTI Campus, Ballary Road, Bangalore 560003, Karnataka, India
| | - Yuan Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
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Atolani O, Olatunji GA, Adeyemi OS. Cytotoxicity of Lapachol and Derivatized Analogues from Kigelia africana (Lam.) Benth. on Cancer Cell Lines. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-020-05113-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Barbosa Coitinho L, Fumagalli F, da Rosa-Garzon NG, da Silva Emery F, Cabral H. Lapachol biotransformation by filamentous fungi yields bioactive quinone derivatives and lapachol-stimulated secondary metabolites. Prep Biochem Biotechnol 2019; 49:459-463. [DOI: 10.1080/10826068.2019.1591991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Luciana Barbosa Coitinho
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Fernando Fumagalli
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Flavio da Silva Emery
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Hamilton Cabral
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, Ribeirão Preto, Brazil
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Ghodsi R, Safarnejad M, Malayeri SO, Golmakanion S. 3,3′-(Arylmethylene)bis(2-hydroxynaphthalene-1,4-dione) as the Main Product of the Mannich Reaction of 2-Hydroxy-1,4-Naphthoquinone with 4 H-1,2,4-Triazol-4-Amine and Various Aldehydes. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15242406216491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The Mannich reaction of lawsone with various aldehydes and 4 H-1,2,4-triazol-4-amine gave unexpected 3,3′-(arylmethylene)bis(2-hydroxynaphthalene-1,4-dione) derivatives. With 2,4-dihydroxybenzaldehyde under the same conditions, it led to the formation of 3-hydroxy-12-(3-hydroxy-1,4-dioxo-1,4-dihydronaphthalen-2-yl)-6 H-benzo[ b]xanthene-6,11(12 H)-dione instead of various triazolylaminonaphthoquinones.
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Affiliation(s)
- Razieh Ghodsi
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Morteza Safarnejad
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sina Omid Malayeri
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sima Golmakanion
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Moreira CS, Silva ACJA, Novais JS, Sá Figueiredo AM, Ferreira VF, da Rocha DR, Castro HC. Searching for a potential antibacterial lead structure against bacterial biofilms among new naphthoquinone compounds. J Appl Microbiol 2017; 122:651-662. [PMID: 27930849 DOI: 10.1111/jam.13369] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 11/13/2016] [Accepted: 11/28/2016] [Indexed: 01/10/2023]
Abstract
AIMS The aims of this study were to design, synthesize and to evaluate 2-hydroxy-3-phenylsulfanylmethyl-[1,4]-naphthoquinones against Gram-negative and Gram-positive bacterial strains, including methicillin-resistant Staphylococcus aureus (MRSA) and its biofilm, to probe for potential lead structures. METHODS AND RESULTS Thirty-six new analogues were prepared with good yields using a simple, fast, operational three-procedure reaction and a thiol addition to an ο-quinone methide using microwave irradiation. All compounds were tested against Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Proteus mirabilis ATCC 15290, Serratia marcescens ATCC 14756, Klebsiella pneumoniae ATCC 4352, Enterobacter cloacae ATCC 23355, Enterococcus faecalis ATCC 29212, S. aureus ATCC 25923, Staphylococcus simulans ATCC 27851, Staphylococcus epidermidis ATCC 12228 and a hospital strain of MRSA. Their antibacterial activity was determined using the disc diffusion method, revealing the activity of 19 compounds, mainly against Gram-positive strains. Interestingly, the minimal inhibitory concentration ranges detected for the hit molecules (32-128 μg ml-1 ) were within Clinical and Laboratory Standards Institute levels. Promisingly, compound 15 affected the MRSA strain, with a reduction of up to 50% in biofilm formation, which is better than vancomycin as biofilm forms a barrier against the antibiotic that avoids its action. CONCLUSIONS After probing 36 naphthoquinones for a potential antibacterial lead structure against the bacterial biofilm, we found that compound 15 should be explored further and also should be structurally modified in the near future to test against Gram-negative strains. SIGNIFICANCE AND IMPACT OF THE STUDY Since vancomycin is one of the last treatment options currently available, and it is unable to inhibit biofilm, the research of new antimicrobials is urgent. In this context, 2-hydroxy-3-phenylsulfanylmethyl-[1,4]-naphthoquinones proved to be a promising lead structure against MRSA and bacterial biofilm.
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Affiliation(s)
- C S Moreira
- Organic Chemistry Department, Chemistry Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - A C J A Silva
- Molecular and Cell Biology Department, PPBI, Biology Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - J S Novais
- Molecular and Cell Biology Department, PPBI, Biology Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - A M Sá Figueiredo
- Department of Medical Microbiology, Institute of Microbiology Professor Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - V F Ferreira
- Organic Chemistry Department, Chemistry Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - D R da Rocha
- Organic Chemistry Department, Chemistry Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
| | - H C Castro
- Molecular and Cell Biology Department, PPBI, Biology Institute, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil
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Abstract
Lawsone has been used as the starting material for the synthesis of a variety of biologically active compounds and materials.
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Affiliation(s)
- Alessandro K. Jordão
- Universidade Federal Fluminense
- Institute of Chemistry
- Niterói
- Brazil
- Unidade Universitária de Farmácia
| | - Maria D. Vargas
- Universidade Federal Fluminense
- Institute of Chemistry
- Niterói
- Brazil
| | - Angelo C. Pinto
- Instituto de Química
- Universidade Federal do Rio de Janeiro
- Rio de Janeiro
- Brazil
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de Lucas NC, Ruis CP, Teixeira RI, Marçal LL, Garden SJ, Corrêa RJ, Ferreira S, Netto-Ferreira JC, Ferreira VF. Photosensitizing properties of triplet furano and pyrano-1,2-naphthoquinones. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2013.11.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Alagöz O, Yılmaz M, Pekel AT, Graiff C, Maggi R. Synthesis of dihydrofuro- and C-alkenylated naphthoquinones catalyzed by manganese(III) acetate. RSC Adv 2014. [DOI: 10.1039/c3ra48015a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The easily synthesis of dihydrofuronaphthoquinones and C-alkenylated naphthoquinones has been investigated through the radical oxidative cyclization of 2-hydroxy-1,4-naphthoquinones and thiophene or furan substituted alkenes catalyzed by manganese(III) acetate.
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Affiliation(s)
- Oğuzhan Alagöz
- Afyon Kocatepe Üniversitesi
- Kimya Mühendisliği Bölümü
- 03200 Afyonkarahisar, Turkey
- Dipartimento di Chimica
- Università di Parma
| | - Mehmet Yılmaz
- Kocaeli Üniversitesi
- Kimya Bölümü
- 41380 Kocaeli, Turkey
| | | | - Claudia Graiff
- Dipartimento di Chimica
- Università di Parma
- I-43124 Parma, Italy
| | - Raimondo Maggi
- Dipartimento di Chimica
- Università di Parma
- I-43124 Parma, Italy
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de Carvalho da Silva F, Cardoso MFDC, Ferreira PG, Ferreira VF. Biological Properties of 1H-1,2,3- and 2H-1,2,3-Triazoles. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_124] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Ahmed S, Khan AY. Mechanistic study of quinone-polyalcohol interaction through cyclic voltammetry. RUSS J ELECTROCHEM+ 2013. [DOI: 10.1134/s1023193513040034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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de Lucas NC, Corrêa RJ, Garden SJ, Santos G, Rodrigues R, Carvalho CEM, Ferreira SB, Netto-Ferreira JC, Ferreira VF, Miro P, Marin ML, Miranda MA. Singlet oxygen production by pyrano and furano 1,4-naphthoquinones in non-aqueous medium. Photochem Photobiol Sci 2012; 11:1201-9. [DOI: 10.1039/c2pp05412d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Costa W, Oliveira A, Nepomuceno J. Lapachol as an epithelial tumor inhibitor agent in Drosophila melanogaster heterozygote for tumor suppressor gene wts. GENETICS AND MOLECULAR RESEARCH 2011; 10:3236-45. [DOI: 10.4238/2011.december.22.1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Vessecchi R, Emery FS, Galembeck SE, Lopes NP. Fragmentation studies and electrospray ionization mass spectrometry of lapachol: protonated, deprotonated and cationized species. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2010; 24:2101-2108. [PMID: 20552691 DOI: 10.1002/rcm.4625] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Electrospray ionization mass spectrometric analysis of lapachol (2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone) was accomplished in order to elucidate the gas-phase dissociation reactions of this important biologically active natural product. The occurrence of protonated and cationized species in the positive mode and of deprotonated species in the negative mode was explored by means of collision-induced dissociation (CID) experiments. For the protonated molecule, the H(2)O and C(4)H(8) losses occur by two competitive channels. For the deprotonated molecule, the even-electron rule is not conserved, and the radicalar species are eliminated by formation of distonic anions. The fragmentation mechanism for each ion was suggested on the basis of computational thermochemistry. Atomic charges, relative energies, and frontier orbitals were employed aiming at a better understanding of the gas-phase reactivity of lapachol. Potential energy surfaces for fragmentation reactions were obtained by the B3LYP/6-31+G(d,p) model.
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Affiliation(s)
- Ricardo Vessecchi
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brasil
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Freire CPV, Ferreira SB, de Oliveira NSM, Matsuura ABJ, Gama IL, da Silva FDC, de Souza MCBV, Lima ES, Ferreira VF. Synthesis and biological evaluation of substituted α- and β-2,3-dihydrofuran naphthoquinones as potent anticandidal agents. MEDCHEMCOMM 2010. [DOI: 10.1039/c0md00074d] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ferreira VF, Ferreira SB, de Carvalho da Silva F. Strategies for the synthesis of bioactive pyran naphthoquinones. Org Biomol Chem 2010; 8:4793-802. [DOI: 10.1039/c0ob00277a] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Ferreira SB, da Silva FDC, Pinto AC, Gonzaga DTG, Ferreira VF. Syntheses of chromenes and chromanesvia o-quinone methide intermediates. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.232] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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21
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Ribeiro KA, de Carvalho CM, Molina MT, Lima EP, López-Montero E, Reys JRM, de Oliveira MBF, Pinto AV, Santana AEG, Goulart MO. Activities of naphthoquinones against Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae), vector of dengue and Biomphalaria glabrata (Say, 1818), intermediate host of Schistosoma mansoni. Acta Trop 2009; 111:44-50. [PMID: 19426662 DOI: 10.1016/j.actatropica.2009.02.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2008] [Revised: 02/13/2009] [Accepted: 02/13/2009] [Indexed: 10/21/2022]
Abstract
Larvicidal (against Aedes aegypti Linnaeus, 1762) and molluscicidal (against Biomphalaria glabrata Say, 1818) activities of several natural and synthetic naphthoquinones were measured, with significant results. The best larvicidal compound is 3-bromojuglone, while the better molluscicides are 2-bromo- and 3-bromo-5-acetoxy-1,4-naphthoquinones together with the 3-bromo-5-methoxy derivative. The present results reinforce the potential use of substituted hydroxyquinones, their salts and halogenated quinones as very promising compounds against 4th instar larves of Aedes aegypti, the vector of dengue and against adult snail of Biomphalaria glabrata.
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da Silva Júnior EN, Pinto MC, de Moura KC, de Simone CA, Nascimento CJ, Andrade CKZ, Pinto AV. Hooker’s ‘lapachol peroxide’ revisited. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.01.096] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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da Silva EN, De Simone CA, Goulart MOF, Andrade CKZ, Silva RSF, Pinto AV. 3-(2,4-Dibromo-anilino)-2,2-dimethyl-2,3-dihydro-naphtho[1,2-b]furan-4,5-dione: a new substituted aryl-amino nor-β-lapachone derivative. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o2348. [PMID: 21581322 PMCID: PMC2959894 DOI: 10.1107/s1600536808034545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Accepted: 10/22/2008] [Indexed: 11/25/2022]
Abstract
The title compound, C20H15Br2NO3, shows the furan ring to adopt a half-chair conformation and the two ring systems to be approximately perpendicular [dihedral angle = 71.0 (2)°]. In the crystal structure, intermolecular C—H⋯O contacts link the molecules.
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Netto-Ferreira JC, Bernardes B, Ferreira ABB, Miranda MÁ. Laser flash photolysis study of the triplet reactivity of β-lapachones. Photochem Photobiol Sci 2008; 7:467-73. [DOI: 10.1039/b716104b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hillard EA, de Abreu FC, Ferreira DCM, Jaouen G, Goulart MOF, Amatore C. Electrochemical parameters and techniques in drug development, with an emphasis on quinones and related compounds. Chem Commun (Camb) 2008:2612-28. [DOI: 10.1039/b718116g] [Citation(s) in RCA: 165] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Netto-Ferreira JC, Lhiaubet-Vallet V, Bernardes BO, Ferreira ABB, Miranda MÁ. Characterization, reactivity and photosensitizing properties of the triplet excited state of α-lapachone. Phys Chem Chem Phys 2008; 10:6645-52. [DOI: 10.1039/b810413a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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da Silva Júnior EN, de Souza MCBV, Pinto AV, Pinto MDCFR, Goulart MOF, Barros FWA, Pessoa C, Costa-Lotufo LV, Montenegro RC, de Moraes MO, Ferreira VF. Synthesis and potent antitumor activity of new arylamino derivatives of nor-β-lapachone and nor-α-lapachone. Bioorg Med Chem 2007; 15:7035-41. [PMID: 17827021 DOI: 10.1016/j.bmc.2007.07.043] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2007] [Revised: 07/18/2007] [Accepted: 07/19/2007] [Indexed: 11/22/2022]
Abstract
Several arylamino derivatives of nor-beta-lapachone were synthesized in moderate to high yields and found to show very potent cytotoxicity against six neoplastic cancer cells: SF-295 (central nervous system), HCT-8 (colon), MDAMB-435 (breast), HL-60 (leukaemia), PC-3 (prostate), and B-16 (murine melanoma), with IC(50) below 1 microg/mL. Their cytotoxicities were compared to doxorubicin and with their synthetic precursors, beta-lapachone and nor-beta-lapachone. The activity against a normal murine fibroblast L-929 showed that some of the compounds were selective against cancer cells. The absence of hemolytic activity (EC(50)>200 microg/mL), performed with erythrocyte suspensions, suggests that the cytotoxicity of the compounds was not related to membrane damage of mouse erythrocytes. For comparison purposes, one isomeric compound based on nor-alpha-lapachone was also synthesized and showed lower activity than the related ortho-derivative. The modified arylamino quinones appear as interesting new lead compounds in anti-cancer drug development.
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Affiliation(s)
- Eufrânio N da Silva Júnior
- Universidade Federal Fluminense, Instituto de Química, Depto. de Química Orgânica, Campus do Valonguinho, 24020-150 Niterói, RJ, Brazil
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da Silva MN, Ferreira SB, Jorqueira A, de Souza MC, Pinto AV, Kaiser CR, Ferreira VF. Synthesis of new carbonyl and fluoroalkyl o-quinone methides from β-lapachone. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.06.145] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Ferreira VF, Jorqueira A, Souza AMT, da Silva MN, de Souza MCBV, Gouvêa RM, Rodrigues CR, Pinto AV, Castro HC, Santos DO, Araújo HP, Bourguignon SC. Trypanocidal agents with low cytotoxicity to mammalian cell line: a comparison of the theoretical and biological features of lapachone derivatives. Bioorg Med Chem 2006; 14:5459-66. [PMID: 16725327 DOI: 10.1016/j.bmc.2006.04.046] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2006] [Revised: 04/24/2006] [Accepted: 04/28/2006] [Indexed: 11/23/2022]
Abstract
Starting from alpha- and beta-lapachones, in this work we compared the biological and theoretical profile of several oxyran derivatives of lapachone as potential trypanocidal agents. Our biological results showed that the oxyrans tested act as trypanocidal agents against Trypanosoma cruzi with minimal cytotoxicity in the VERO cell line compared to naphthoquinones. The oxyran derivative of alpha-lapachone (7a) showed to be one of the most potent compounds. In our molecular modeling study, we analyzed the C-ring moiety and the redox center of beta-lapachone molecule as the moieties responsible for the trypanocidal and cytotoxic effects on mammalian cell line. The computational methods used to delineate the structural requirements for the trypanocidal profile pointed out that the transposition of the C-ring moiety of beta-lapachone, combined with its oxyran ring, introduced important molecular requirements for trypanocidal activity in the HOMO energy, HOMO orbital coefficient, LUMO density, electrostatic potential map, dipole moment vector, and calculated logP (clogP) parameter. This study could lead to the development of new antichagasic medicines based on alpha-lapachone analogs.
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Affiliation(s)
- Vitor F Ferreira
- Universidade Federal Fluminense, Instituto de Química, Departamento de Química Orgânica, Niterói, Rio de Janeiro, Brazil.
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Jorqueira A, Gouvêa RM, Ferreira VF, da Silva MN, de Souza MCBV, Zuma AA, Cavalcanti DFB, Araújo HP, Santos DO, Bourguignon SC. Oxyrane derivative of α-lapachone is potent growth inhibitor of Trypanosoma cruzi epimastigote forms. Parasitol Res 2006; 99:429-33. [PMID: 16596415 DOI: 10.1007/s00436-006-0153-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2005] [Accepted: 02/06/2006] [Indexed: 10/24/2022]
Abstract
The investigation of trypanocidal effects against Trypanosoma cruzi and cytotoxicity in VERO cell line of several oxyranes structurally related to beta-lapachone, nor-beta-lapachone, alpha-lapachone, and 4-methoxy-1,2-naphthoquinone is described. It was found that the oxyranes 10 derived from alpha-lapachone showed an approximately the same trypanocidal activity of beta-lapachone. In addition, all the oxyranes showed less cytotoxicity than the corresponding naphthoquinones.
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Affiliation(s)
- Alessandra Jorqueira
- Departamento de Química Orgânica-PQO, Instituto de Química, Universidade Federal Fluminense, 24020-150, Niterói, Rio de Janeiro, Brazil
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31
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Ferreira VF, Jorqueira A, Leal KZ, Pimentel HRX, Seidl PR, da Silva MN, da Souza MCBV, Pinto AV, Wardell JL, Wardell SMSV. Preparation of alpha-diazocarbonyl compounds from beta-lapachone derivatives and other 1,2-naphthoquinones: use of the 2D NMR 1H,15N and 1H,13C HMBC techniques in assigning regiochemistry. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2006; 44:481-90. [PMID: 16489549 DOI: 10.1002/mrc.1778] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The assignment of the diazo site in products of the reaction of p-toluenesulfonylhydrazine with beta-lapachone, 3,4-dihydro-2,2-dimethyl-2H-naphtho[1,2-b]pyran-5,6-dione, and other 1,2-naphthoquinones in methanol solution at room temperature has been accomplished using 1H,13C HMBC and 1H,15N HMBC NMR experiments. Only one diazo-naphthalenone product was isolated in yields ranging from 50-100% from each reaction. The site of diazo substitution of beta-lapachone and derivatives is the 1-position, in contrast to substitution at the 2-position in 4-MeO-1,2-naphthoquinone. Steric factors, rather than electronic factors, control the reaction site. Along with 2-diazo-1(2H)-naphthalenone, an additional product isolated from the reaction of p-toluenesulfonylhydrazide with 1,2-naphthoquinone was 2-diazo-4-hydroxy-1(2H)-naphthalenone. Confirmation of the formation of 6-diazo-2,2-dimethyl-2,3,4,6-tetrahydro-2H-benzo[h]cromen-5-one, obtained from beta-lapachone, was achieved using single crystal X-ray diffraction.
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Affiliation(s)
- Vitor F Ferreira
- Universidade Federal Fluminense; Instituto de Química, Departamento de Química Orgânica, 24020-150 Niterói, Rio de Janeiro, Brazil.
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Rodrigues AMS, de Paula JE, Roblot F, Fournet A, Espíndola LS. Larvicidal activity of Cybistax antisyphilitica against Aedes aegypti larvae. Fitoterapia 2005; 76:755-7. [PMID: 16229968 DOI: 10.1016/j.fitote.2005.08.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2005] [Accepted: 08/29/2005] [Indexed: 12/01/2022]
Abstract
The larvicidal activity against Aedes aegypti larvae of a stem wood hexane extract of Cybistax antisyphilitica was evaluated. Bioassay-guided fractionation of the crude extract, monitored by larvicidal assay, led to the isolation of a natural quinone identified as 2-hydroxy-3-(3-methyl-2-butenyl)-1.4-naphthoquinone (lapachol). This compound was quite potent against A. aegypti larvae (LC50 26.3 microg/ml).
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Affiliation(s)
- A M S Rodrigues
- Laboratório de Farmacognosia, Faculdade de Ciências da Saúde, Universidade de Brasília, Brasília, Brazil
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Lima NMF, Correia CS, Leon LL, Machado GMC, Madeira MDF, Santana AEG, Goulart MOF. Antileishmanial activity of lapachol analogues. Mem Inst Oswaldo Cruz 2005; 99:757-61. [PMID: 15654435 DOI: 10.1590/s0074-02762004000700017] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023] Open
Abstract
The antileishmanial activity of lapachol, isolapachol, and dihydrolapachol, along with soluble derivatives (potassium salt) and acetate was obtained. All the compounds were assayed against metacyclic promastigotes of two different species of Leishmania associated to tegumentar leishmaniasis: L. amazonensis and L. braziliensis. All compounds presented significant activity, being isolapachol acetate the most active against promastigotes, with IC50/24h = 1.6 +/- 0.0 microg/ml and 3.4 +/- 0.5 microg/ml for, respectively, L. amazonensis and L. braziliensis. This compound was also assayed in vivo against L. amazonensis and showed to be active. Its toxicity in vitro was also established, and at concentration similar to the IC50, no toxicity was evidenced. In all experiments, pentamidine isethionate was used as a reference drug. The present results reinforce the potential use of substituted hydroxyquinones and derivatives as promising antileishmanial drugs and suggest a continuing study within this class of compounds.
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Affiliation(s)
- Nadja M F Lima
- Departamento de Química, CCEN, Universidade Federal de Alagoas, Tabuleiro do Martins, 57072-970 Maceió, AL, Brazil
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dos Santos EVM, Carneiro JWDM, Ferreira VF. Quantitative structure-activity relationship in aziridinyl-1,4-naphthoquinone antimalarials: study of theoretical correlations by the PM3 method. Bioorg Med Chem 2004; 12:87-93. [PMID: 14697773 DOI: 10.1016/j.bmc.2003.10.022] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several molecular parameters for 2,3,5-substituted 1,4-naphthoquinones including 2-aziridinyl and 2,3-aziridinyl-1,4-naphthoquinones with antimalarial activities were obtained with the semi-empirical PM3 method. The descriptor related to the Gibbs free energy of an isodesmic equation defining the reduction of the naphthoquinones was found to have high correlation with activity. The quantitative models reported clearly show a dependence of activity on the redox potential for reduction of the naphthoquinones. Compounds with lower values of DeltaG for reduction are more active than those with higher values of DeltaG.
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Affiliation(s)
- Elizabeth V M dos Santos
- Pós-Graduação em Qui;mica Orgânica, Universidade Federal Fluminense, Outeiro de S. João Batista, s/n, 24020-150, Niterói, RJ, Brazil
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Electrochemical studies of isolapachol with emphasis on oxygen interaction with its radical anions. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2003.10.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Goulart MOF, Falkowski P, Ossowski T, Liwo A. Electrochemical study of oxygen interaction with lapachol and its radical anions. Bioelectrochemistry 2003; 59:85-7. [PMID: 12699823 DOI: 10.1016/s1567-5394(03)00005-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cyclovoltammetric studies were performed with lapachol [2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone], in the absence and presence of oxygen, which aimed to investigate possible oxygen interaction with lapachol and its radical anion. The obtained results clearly indicate the consumption of the semiquinone anion-radicals by oxygen in an EC type reaction, generating the deprotonated form of lapachol and HOO*. The observed generation of reactive oxygen species (ROS) after electron transfer can be related to the mechanism of biological action of lapachol.
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Affiliation(s)
- Marília O F Goulart
- Departamento de Química-CCEN Campus, Universidade Federal de Alagoas, Tabuleiro dos Martins, Maceio, Brazil.
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ravelo ÁG, Estévez-braun A, Pérez-sacau E. The chemistry and biology of lapachol and related natural products α and β-lapachones. BIOACTIVE NATURAL PRODUCTS (PART J) 2003. [DOI: 10.1016/s1572-5995(03)80017-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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39
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Lima NMF, dos Santos AF, Porfírio Z, Goulart MOF, Sant'Ana AEG. Toxicity of lapachol and isolapachol and their potassium salts against Biomphalaria glabrata, Schistosoma mansoni cercariae, Artemia salina and Tilapia nilotica. Acta Trop 2002; 83:43-7. [PMID: 12062792 DOI: 10.1016/s0001-706x(02)00055-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The toxicity of soluble derivatives (potassium salt) of lapachol and isolapachol in different stages of the life cycle of Schistosoma mansoni is evaluated. The potassium salts of isolapachol and lapachol showed significant molluscicidal activity against the adult snail (LC90<7 ppm) and snail egg masses (LC90<3 ppm). Cercaricidal assays revealed strong activities for both compounds. Lethality assays against brine shrimp eggs (Artemia salina Leach) indicated very high toxicity for the potassium salt of isolapachol (LC90=1.54 ppm), differently from the potassium salt of lapachol that can be considered non toxic (LC90=176.3 ppm). The same tendency is observed with piscicidal activity, for which the isolapachol salt has showed higher toxicity. The obtained selectivity ratios concerning LC50 and LC90 for lapachol, in relation to Tilapia nilotica lethality assay are 2.33 and 1.26, respectively. Despite the piscicidal toxicity, the use of the salt of lapachol can be recommended for field tests in Schistosomiasis, with caution.
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Affiliation(s)
- Nadja Maria Fernandes Lima
- Departamento de Química/CCEN Campus A.C. Simoes, Universidade Federal de Alagoas, Tabuleiro dos Martins Maceió, Alagoas, Brazil
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Abstract
In this "Critical Review" we made a historical introduction of drugs assayed against Chagas disease beginning in 1912 with the works of Mayer and Rocha Lima up to the experimental use of nitrofurazone. In the beginning of the 70s, nifurtimox and benznidazole were introduced for clinical treatment, but results showed a great variability and there is still a controversy about their use for chronic cases. After the introduction of these nitroheterocycles only a few compounds were assayed in chagasic patients. The great advances in vector control in the South Cone countries, and the demonstration of parasite in chronic patients indicated the urgency to discuss the etiologic treatment during this phase, reinforcing the need to find drugs with more efficacy and less toxicity. We also review potential targets in the parasite and present a survey about new classes of synthetic and natural compounds studied after 1992/1993, with which we intend to give to the reader a general view about experimental studies in the area of the chemotherapy of Chagas disease, complementing the previous papers of Brener (1979) and De Castro (1993).
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Affiliation(s)
- José Rodriques Coura
- Departamento de Medicina Tropical, Instituto Oswaldo Cruz-Fiocruz, Av. Brasil 4365, 21045-900 Rio de Janeiro, RJ, Brasil.
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Ferraz PA, de Abreu FC, Pinto AV, Glezer V, Tonholo J, Goulart MO. Electrochemical aspects of the reduction of biologically active 2-hydroxy-3-alkyl-1,4-naphthoquinones. J Electroanal Chem (Lausanne) 2001. [DOI: 10.1016/s0022-0728(01)00439-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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