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Andreazza F, Valbon W, Dong K. Transfluthrin enhances odorant receptor-mediated spatial repellency in Aedes aegypti. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 192:105387. [PMID: 37105616 DOI: 10.1016/j.pestbp.2023.105387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/21/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
Mosquito-borne diseases are an increasing global health challenge and vector-based interventions remain the most important methods for reducing the public health burden of most mosquito-borne diseases. Transfluthrin, a volatile pyrethroid insecticide, is used widely and effectively as an insecticide and as a repellent. In a recent study, we showed that at very low concentrations transfluthrin repels Aedes aegypti mosquitoes in a hand-in-cage assay without detectable stimulation of antennal olfactory responses. Furthermore, activation of sodium channels by transfluthrin enhances repellency by DEET, which has been reported to repel mosquitoes via odorant receptor (Or)-dependent and Or-independent mechanisms. However, whether activation of sodium channels by transfluthrin can serve as a general mechanism for synergizing the activities of other repellents remain unknown. In this study, we found that, in hand-in-cage assay, transfluthrin enhanced repellency by geranyl acetate and (E)-β-farnesene, which activate AaOr31. Such enhancement was not observed in AaOr31-knockout mosquitoes and dampened in a pyrethroid-resistant strain carrying two sodium channel mutations, which reduce the action of transfluthrin on sodium channels. In addition, transfluthrin also enhanced repellency by (-)-borneol, (±)-citronellal, camphor, and eucalyptol, which activate Or-mediated repellency. Our study has uncovered the ability of transfluthrin to enhance the repellency to a variety of mosquito repellents, beyond DEET, and provided experimental support for the emerging paradigm of synergistic interactions between repellency mediated by sodium channel activation and Or activation. These findings have potential implications in the development of more effective mosquito repellent mixtures.
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Affiliation(s)
| | - Wilson Valbon
- Department of Biology, Duke University, Durham, NC 27708, USA
| | - Ke Dong
- Department of Biology, Duke University, Durham, NC 27708, USA.
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2
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Makri A, Papachristos DP, Michaelakis A, Vidali VP. Colupulone, colupone and novel deoxycohumulone geranyl analogues as larvicidal agents against Culex pipiens. PEST MANAGEMENT SCIENCE 2022; 78:4217-4222. [PMID: 35705833 DOI: 10.1002/ps.7039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND As climate change proceeds, the management of the population of mosquitoes becomes more and more challenging. Insect adulticides and larvicides constitute significant control techniques, with the latter being considered the leading mosquito control method. However, the development of mosquito resistance development and the adverse side effects caused by the extensive use of synthetic insecticides have turned research towards the discovery of environmentally-friendly solutions. Plants and bacteria have historically proven to be a good source of insecticidally active compounds, which may possess novel modes of action to overcome current resistance mechanisms and could also possess favorable human and environmental safety profiles. A previous study demonstrated that the naturally occurring prenylated acyl phloroglucinol deoxycohumulone is a potent larvicidal agent against Culex pipiens. Herein the structural characteristics that improve it are explored by evaluating colupulone and novel geranylated analogues. RESULTS Colupulone, a prenylated acyl phloroglucinol isolated from Humulus lupulus, colupone, and novel geranylated acyl phloroglucinol congeners, were synthesized and evaluated against Cx. pipiens larva. Results indicated that selected derivatives exhibited superior potency than deoxycohumulone (LC50 43.7 mg L-1 ). Thus, strong activity was observed for colupulone (LC50 19.7 mg L-1 ), and some novel geranyl analogues of deoxycohumulone reaching at LC50 17.1 mg L-1 , while colupone and similar compounds were almost inactive. CONCLUSION The results determined the relationship between the target activity and the chemical structure of the tested compounds, and they revealed significantly improved larvicidal candidates. These results highlight the potential of the acyl phloroglucinol chemistry for further development of mosquito larvicides. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Apostolia Makri
- Natural Products and Bioorganic Chemistry Laboratory, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Athens, Greece
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Dimitrios P Papachristos
- Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, Kifissia, Greece
| | - Antonios Michaelakis
- Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, Kifissia, Greece
| | - Veroniki P Vidali
- Natural Products and Bioorganic Chemistry Laboratory, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Athens, Greece
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Buakaew W, Pankla Sranujit R, Noysang C, Krobthong S, Yingchutrakul Y, Thongsri Y, Potup P, Daowtak K, Usuwanthim K. Proteomic Analysis Reveals Proteins Involved in the Mode of Action of β-Citronellol Identified From Citrus hystrix DC. Leaf Against Candida albicans. Front Microbiol 2022; 13:894637. [PMID: 35677908 PMCID: PMC9168680 DOI: 10.3389/fmicb.2022.894637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/26/2022] [Indexed: 11/23/2022] Open
Abstract
Candida albicans is a fungus that lives primarily on the mucosal surfaces of healthy humans, such as the oral cavity, vagina, and gastrointestinal tract. This commensal organism can be controlled by other microbiota, while certain conditions can increase the risk of C. albicans outgrowth and cause disease. Prevalence of the drug-resistant phenotype, as well as the severity of C. albicans infection in immunocompromised patients, presents a challenge for scientists to develop novel, effective treatment, and prevention strategies. β-Citronellol is an intriguing active compound of several plants that has been linked to antifungal activity, but data on the mechanism of action in terms of proteomic profiling are lacking. Here, β-citronellol identified from Citrus hystrix DC. leaf against C. albicans were evaluated. A proteomic approach was used to identify potential target proteins involved in the mode of action of β-citronellol. This study identified and discussed three protein groups based on the 126 major proteins that were altered in response to β-citronellol treatment, 46 of which were downregulated and 80 of which were upregulated. Significant protein groups include cell wall proteins (e.g., Als2p, Rbt1p, and Pga4p), cellular stress response enzymes (e.g., Sod1p, Gst2p, and Ddr48p), and ATP synthesis-associated proteins (e.g., Atp3p, Atp7p, Cox1p, and Cobp). Results demonstrated the complexities of protein interactions influenced by β-citronellol treatment and highlighted the potential of antifungal activity for future clinical and drug development research.
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Affiliation(s)
- Watunyoo Buakaew
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Rungnapa Pankla Sranujit
- Faculty of Integrative Medicine, Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand
| | - Chanai Noysang
- Faculty of Integrative Medicine, Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand
| | - Sucheewin Krobthong
- Interdisciplinary Graduate Program in Genetic Engineering, Kasetsart University, Bangkok, Thailand
- Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Yodying Yingchutrakul
- Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, Thailand
- National Omics Center, National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Yordhathai Thongsri
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Pachuen Potup
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Krai Daowtak
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Kanchana Usuwanthim
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
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Impact of Cymbopogon flexuosus (Poaceae) essential oil and primary components on the eclosion and larval development of Aedes aegypti. Sci Rep 2021; 11:24291. [PMID: 34934146 PMCID: PMC8692593 DOI: 10.1038/s41598-021-03819-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 12/09/2021] [Indexed: 11/08/2022] Open
Abstract
The current study describes the effects of sub-lethal concentrations and constituent compounds (citral and geranyl acetate) of Cymbopogon flexuosus essential oil (EO) on the development of Aedes aegypti. We treated eggs with 6, 18, or 30 mg L-1 and larvae with 3 or 6 mg L-1 of EO and its major compounds (citral and geranyl acetate). Citral and geranyl acetate were evaluated at 18, 30, and 42 mg L-1 and compared with commercial growth inhibitors (diflubenzuron and methoprene). We measured larval head diameter, siphon length, and larval length. Finally, we examined concentrations of molt hormone (MH) and juvenile hormone III (JH III) using high-performance liquid chromatography coupled to mass spectrometry. All geranyl acetate concentrations decreased egg hatching, while EO altered molting among larval instars and between larvae and pupae, with an increase in the larval length (3 mg L-1: 6 ± 0.0 mm; 6 mg L-1: 6 ± 0.7 mm) and head width (3 mg L-1: 0.8 ± 0 mm; 6 mg L-1: 0.8 ± 0.0 mm) compared with the control group. We did not detect chromatographic signals of MH and JH III in larvae treated with C. flexuosus EO or their major compounds. The sub-lethal concentrations C. flexuosus EO caused a similar effect to diflubenzuron, namely decreased hormone concentrations, an extended larval period, and death.
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Pino-Otín MR, Langa E, Val J, Mainar AM, Ballestero D. Impact of citronellol on river and soil environments using non-target model organisms and natural populations. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 287:112303. [PMID: 33714735 DOI: 10.1016/j.jenvman.2021.112303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Citronellol is an acyclic monoterpenoid with a wide range of pharmacological activities (antibacterial, antifungal, anti-lice, repellent, lipolytic, anti-allergic, anti-inflammatory, antispasmodic, antidiabetic, anti-cholesterol, among other) and potential to replace synthetic products. However, the impact of citronellol on the environment remains unknown. We analysed, for the first time, the environmental impact of citronellol on river and soil environments using non-target model organisms and natural populations. The acute toxicity of citronellol on the aquatic invertebrate Daphnia magna, the plant Allium cepa L and the earthworm Eisenia fetida was quantified. The effect of citronellol in a river ecosystem was analysed using river periphyton communities taxonomically characterised and a river microbial community characterised through 16 S rRNA gene sequencing. Finally, a microbial community from natural soil was used to monitor the effect of citronellol on the soil ecosystem. The results showed that E. fetida was most sensitive to citronellol (LC50 = 12.34 mg/L), followed by D. magna (LC50 = 14.11 mg/L). Citronellol affected the photosynthesis of the fluvial periphyton (LC50 = 94.10 mg/L) and was phytotoxic for A. cepa. Furthermore, citronellol modified the growth and metabolism of both fluvial (LC50 = 0.19% v/v) and edaphic (LC50 = 5.07% v/v) bacterial populations. The metabolism of the microorganisms in the soil and water exposed to citronellol decreased with respect to the control, especially their ability to metabolise carbohydrates. Our results show that citronellol has a negative impact on the environment. Although acute effects cannot be expected, it is necessary to quantify the environmental levels as well as the long-term and persistent effects of this monoterpene.
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Affiliation(s)
| | - Elisa Langa
- Universidad San Jorge, Villanueva de Gállego, 50830, Zaragoza, Spain.
| | - Jonatan Val
- Universidad San Jorge, Villanueva de Gállego, 50830, Zaragoza, Spain.
| | - Ana M Mainar
- I3A, Universidad de Zaragoza, c/ Mariano Esquillor s/n, 50018, Zaragoza, Spain.
| | - Diego Ballestero
- Universidad San Jorge, Villanueva de Gállego, 50830, Zaragoza, Spain.
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Paula HCB, Silva RBC, Santos CM, Dantas FDS, de Paula RCM, de Lima LRM, de Oliveira EF, Figueiredo EAT, Dias FGB. Eco-friendly synthesis of an alkyl chitosan derivative. Int J Biol Macromol 2020; 163:1591-1598. [PMID: 32791282 DOI: 10.1016/j.ijbiomac.2020.08.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023]
Abstract
Chitosan (CH) was N-alkylated via Schiff base formation and further reduced via sodium borohydride. The reaction was carried out at room temperature, in a homogeneous aqueous medium, using as a source of alkyl group an essential oil (Eucalyptus staigeriana) containing an unsaturated aldehyde (3,7-dimethylocta-2,6-dienal). Derivatives were characterized by Infrared Spectroscopy, proton and carbon Nuclear Magnetic Resonance, XRD, particle size distribution and zeta potential. Chitosan hydrophobization evidence was given by FTIR as new bands at 2929 cm-1 due to methyl groups, along with the presence of strong band at 1580 cm-1 owing to N substitution. Moreover, carbon and proton NMR corroborated the insertion of methyl groups in chitosan backbone. The degree of substitution was found to be in the range 0.69-1.44. X-ray diffractograms revealed that the insertion of alkyl substituents in chitosan backbone led to a less crystalline material. Data from antibacterial activity revealed that chitosan and derivatives were effective against Gram-positive bacteria, whereby derivatives exhibited greater inhibitory effect than CH. Derivatives are likely candidates for use as carriers for active principles of interest of food, pharmacy and medicine.
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Affiliation(s)
- Haroldo C B Paula
- Post-Graduation in Chemistry Program, Building 940, Federal University of Ceará, Fortaleza 60455-760, Ceará, Brazil.
| | - Rudson B C Silva
- Department of Organic and Inorganic Chemistry, Building 940, Federal University of Ceará, Fortaleza 60455-760, Ceará, Brazil
| | - Clara M Santos
- Department of Organic and Inorganic Chemistry, Building 940, Federal University of Ceará, Fortaleza 60455-760, Ceará, Brazil
| | - Francisco D S Dantas
- Department of Organic and Inorganic Chemistry, Building 940, Federal University of Ceará, Fortaleza 60455-760, Ceará, Brazil
| | - Regina C M de Paula
- Department of Organic and Inorganic Chemistry, Building 940, Federal University of Ceará, Fortaleza 60455-760, Ceará, Brazil
| | - Laís R M de Lima
- Department of Organic and Inorganic Chemistry, Building 940, Federal University of Ceará, Fortaleza 60455-760, Ceará, Brazil
| | - Erick F de Oliveira
- Department of Organic and Inorganic Chemistry, Building 940, Federal University of Ceará, Fortaleza 60455-760, Ceará, Brazil
| | - Evânia A T Figueiredo
- Department of Food Science and Technology-DETAL, Building 858, Federal University of Ceará, Fortaleza 60356-000, Ceará, Brazil
| | - Flayanna G B Dias
- Department of Food Science and Technology-DETAL, Building 858, Federal University of Ceará, Fortaleza 60356-000, Ceará, Brazil
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Pereira LPLA, Ribeiro ECG, Brito MCA, Silveira DPB, Araruna FOS, Araruna FB, Leite JAC, Dias AAS, Firmo WDCA, Borges MODR, Borges ACR, Coutinho DF. Essential oils as molluscicidal agents against schistosomiasis transmitting snails - a review. Acta Trop 2020; 209:105489. [PMID: 32404294 DOI: 10.1016/j.actatropica.2020.105489] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 04/02/2020] [Accepted: 04/02/2020] [Indexed: 12/14/2022]
Abstract
This review aims to describe essential oils with bioactivity on adult snails of the genera Bulinus and Biomphalaria, which are intermediate hosts of schistosomes, and brings together information relating to the importance of molluscicides and the chemical composition and toxicity of such oils for other aquatic species. Analysis of the data of original articles revealed that 50 essential oils obtained from 46 plant species were evaluated for molluscicidal activity against the genera cited. More than 80% of the volatile oils studied were active, according to the criteria of the World Health Organization (LC90 or LC100 ≤100 µg/mL or LC50 <40 µg/mL), and most of the oils came from plants belonging to the Rutaceae, Lamiaceae and Pinaceae. Around 37% of the surveyed plant species were obtained in Brazil and 88% of these plants were collected in the northeast of the country, a region with a high prevalence of schistosomiasis mansoni. The essential oils with the highest toxicity against host snails had high levels of hydrocarbon monoterpenes and oxygenated monoterpenes, which may be responsible for the molluscicidal activity. Some volatile components were subjected to molluscicidal evaluation, and the monoterpene compounds exhibited a significant molluscicide effect. This review confirmed the importance of essential oils as a promising alternative for the development of natural molluscicide products. However, in order to be safe for use at sites where schistosome intermediate hosts are found, information on ecotoxicity is required and, to date, few oils have been tested against non-target aquatic species.
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Affiliation(s)
| | - Edilene Carvalho Gomes Ribeiro
- Programa de Pós-Graduação em Biotecnologia da Rede Renorbio, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil
| | - Maria Cristiane Aranha Brito
- Programa de Pós-Graduação em Biotecnologia da Rede Renorbio, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil; Faculdade Maurício de Nassau, 65040-840 São Luís, Maranhão, Brazil
| | | | - Fernanda Oliveira Sousa Araruna
- Programa de Pós-Graduação em Biotecnologia da Rede Renorbio, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil
| | - Felipe Bastos Araruna
- Programa de Pós-Graduação em Biotecnologia da Rede Renorbio, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil
| | - José Antonio Costa Leite
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil
| | | | | | - Marilene Oliveira da Rocha Borges
- Programa de Pós-Graduação em Biotecnologia da Rede Renorbio, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil
| | - Antônio Carlos Romão Borges
- Programa de Pós-Graduação em Biotecnologia da Rede Renorbio, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil
| | - Denise Fernandes Coutinho
- Programa de Pós-Graduação em Biotecnologia da Rede Renorbio, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil; Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Maranhão, 65065-545 São Luís, Maranhão, Brazil
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8
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Zong Z, Zhang S, Zhen M, Xu N, Li D, Wang C, Gao B, Hua Q, Liu Z. Metabolic engineering of Escherichia coli for the production of neryl acetate. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107704] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Ricarte LP, Bezerra GP, Romero NR, Silva HCDA, Lemos TLG, Arriaga AMC, Alves PB, Santos MBD, Militão GCG, Silva TDS, Braz-Filho R, Santiago GMP. Chemical composition and biological activities of the essential oils from Vitex-agnus castus, Ocimum campechianum and Ocimum carnosum. AN ACAD BRAS CIENC 2020; 92:e20180569. [PMID: 32321015 DOI: 10.1590/0001-3765202020180569] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 11/13/2018] [Indexed: 12/12/2022] Open
Abstract
The essential oils obtained by hydrodistillation from fresh leaves of Vitex agnus-castus and Ocimum campechianum, and from fresh inflorescences of Ocimum carnosum were analysed by GC-FID and GC-MS. The major components of V. agnus-castus essential oil were identified as 1,8-cineole (47.9%), terpinyl α-acetate (11.6%), sabinene (11.2%) and caryophyllene oxide (9.7%), while in the O. campechianum essential oil were eugenol (72.1%), β-elemene (6.8%), (E)-caryophyllene (6.4%) and bicyclogermacrene (5.2%). Linalool (79.0%), α-epi-cadinol (5.4%), terpinen-4-ol (3.2%) and 1,8-cineole (2.8%) were the major constituents in the O. carnosum essential oil. The essential oils were subsequently evaluated for their larvicidal and cytotoxic activities. Larval bioassay against Aedes aegypti of V. agnus-castus, O. campechianum and O. carnosum essential oils showed LC50 values of 97.55 ± 0.35, 81.45 ± 0.35 and 109.49 ± 0.35 μg/mL, respectively. The in vitro cytotoxic activities of the essential oils has been evaluated on breast adenocarcinoma (MCF-7), lung carcinoma (NCI-H292), pro-myelocytic leukemia (HL-60), and cervical adenocarcinoma (HEP-2) human cell lines, and pro-myelocytic leukemia cells lines (HL-60) were found to be the most sensitive to all the essential oils tested than the others. This is the first report on larvicidal and cytotoxic activities of these essential oils.
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Affiliation(s)
- Lara P Ricarte
- Departamento de Farmácia, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Rua Capitão Francisco Pedro, 1210, Porangabuçu, 60451-970 Fortaleza, CE, Brazil
| | - Gabrieli P Bezerra
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Rua Capitão Francisco Pedro, 1210, Porangabuçu, 60451-970 Fortaleza, CE, Brazil
| | - Nirla R Romero
- Departamento de Farmácia, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Rua Capitão Francisco Pedro, 1210, Porangabuçu, 60451-970 Fortaleza, CE, Brazil
| | - Horlando C DA Silva
- Programa de Pós-Graduação em Química, Centro de Ciências, Universidade Federal do Ceará, Av. Mister Hull, s/n, Pici, 60021-970 Fortaleza, CE, Brazil
| | - Telma L G Lemos
- Programa de Pós-Graduação em Química, Centro de Ciências, Universidade Federal do Ceará, Av. Mister Hull, s/n, Pici, 60021-970 Fortaleza, CE, Brazil
| | - Angela M C Arriaga
- Programa de Pós-Graduação em Química, Centro de Ciências, Universidade Federal do Ceará, Av. Mister Hull, s/n, Pici, 60021-970 Fortaleza, CE, Brazil
| | - Péricles B Alves
- Departamento de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristovão, SE, Brazil
| | - Marcelo B Dos Santos
- Departamento de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristovão, SE, Brazil
| | - Gardenia C G Militão
- Departamento de Fisiologia e Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Rua Professor Morais Rego 1235, Cidade Universitária, 50670-901 Recife, PE, Brazil
| | - Thiago D S Silva
- Departamento de Fisiologia e Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Rua Professor Morais Rego 1235, Cidade Universitária, 50670-901 Recife, PE, Brazil
| | - Raimundo Braz-Filho
- Setor de Química de Produtos Naturais, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-600 Campos dos Goytacazes, RJ, Brazil.,Departamento de Química, Instituto de Ciências Exatas, Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, Km 07, s/n, Zona Rural, 23890-000 Seropédica, RJ, Brazil
| | - Gilvandete M P Santiago
- Departamento de Farmácia, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Rua Capitão Francisco Pedro, 1210, Porangabuçu, 60451-970 Fortaleza, CE, Brazil.,Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Rua Capitão Francisco Pedro, 1210, Porangabuçu, 60451-970 Fortaleza, CE, Brazil.,Programa de Pós-Graduação em Química, Centro de Ciências, Universidade Federal do Ceará, Av. Mister Hull, s/n, Pici, 60021-970 Fortaleza, CE, Brazil
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Portilla-Pulido JS, Castillo-Morales RM, Barón-Rodríguez MA, Duque JE, Mendez-Sanchez SC. Design of a Repellent Against Aedes aegypti (Diptera: Culicidae) Using in silico Simulations With AaegOBP1 Protein. JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:463-476. [PMID: 31670811 PMCID: PMC7530563 DOI: 10.1093/jme/tjz171] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Skin irritation has been reported to be the main adverse effect of excessive use of N,N-diethyl-m-toluamide (DEET) and ethyl 3-acetyl(butyl)amino (IR3535) commercial repellents. Therefore, there is an interest in alternatives of natural origin such as essential oils (EOs) and major compounds, which have repellent effects but have no contraindications. The main purpose of the present study was to identify the repellent effect of selected terpenes on Aedes aegypti Linnaeus, 1762 (Diptera: Culicidae) by in silico analysis based on their affinity with the odorant protein AaegOBP1. The protein-metabolite interactions in 20 terpenes were analyzed using the SwissDock tool. Terpenes presenting the highest affinity compared with commercial repellents were selected to evaluate repellent activity at concentrations 0.1, 10, and 25% against Ae. aegypti. Different periods (0-2, 2-15, 15-60 min) were evaluated with DEET as a positive control. The toxicity of terpenes was verified through Osiris and Molinspiration Cheminformatics Software, and cytotoxicity assays in Vero and HepaRG cells were performed using the MTT method. Two formulations were prepared with polyethylene glycol to evaluate skin long-lasting in vivo assay. The results showed four terpenes: geranyl acetate, nerolidol, α-bisabolol, and nerol, with affinity to AaegOBP1 comparable with DEET and IR3535. Geranyl acetate, nerolidol, and their mixtures showed no cytotoxicity and protection percentages close to 100% during the test at concentrations 10 and 25%. Long-lasting assays with geranyl acetate and nerolidol formulate showed 3 h as maximum protection time with 100% protection percentage. These metabolites and their mixtures are candidates to repellent formulations with times and protection percentages similar to DEET.
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Affiliation(s)
- Johan Sebastián Portilla-Pulido
- Grupo de Investigación en Bioquímica y Microbiología (GIBIM). Escuela de Química, Universidad Industrial de Santander, Bucaramanga A.A., Colombia
- Centro de Investigaciones en Enfermedades Tropicales - CINTROP. Facultad de Salud. Escuela de Medicina, Departamento de Ciencias Básicas, Universidad Industrial de Santander, Guatiguará Technology and Research Park, Piedecuesta, Santander, Colombia
| | - Ruth Mariela Castillo-Morales
- Centro de Investigaciones en Enfermedades Tropicales - CINTROP. Facultad de Salud. Escuela de Medicina, Departamento de Ciencias Básicas, Universidad Industrial de Santander, Guatiguará Technology and Research Park, Piedecuesta, Santander, Colombia
| | | | - Jonny Edward Duque
- Centro de Investigaciones en Enfermedades Tropicales - CINTROP. Facultad de Salud. Escuela de Medicina, Departamento de Ciencias Básicas, Universidad Industrial de Santander, Guatiguará Technology and Research Park, Piedecuesta, Santander, Colombia
| | - Stelia Carolina Mendez-Sanchez
- Grupo de Investigación en Bioquímica y Microbiología (GIBIM). Escuela de Química, Universidad Industrial de Santander, Bucaramanga A.A., Colombia
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Taktak NEM, Badawy MEI. Potential of hydrocarbon and oxygenated monoterpenes against Culex pipiens larvae: Toxicity, biochemical, pharmacophore modeling and molecular docking studies. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 158:156-165. [PMID: 31378352 DOI: 10.1016/j.pestbp.2019.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/25/2019] [Accepted: 05/13/2019] [Indexed: 06/10/2023]
Abstract
Culex pipiens is a main vector for Bancroftian filariasis, Rift Valley Fever and diseases caused by other viruses, leaving several peoples with disabilities. In recent years, plant derived compounds have received much attention as potential alternatives to synthetic chemicals due to their low toxicity to mammals and environmental persistence. Twenty-one monoterpenes from different chemical groups (hydrocarbons and oxygenated products) were evaluated against Culex pipiens larvae. In addition, in vivo biochemical studies including effects on acetylcholine esterase (AChE), acid and alkaline phosphatases (ACP and ALP), total adenosine triphosphatase (ATPase) and gamma-aminobutyric acid transaminase (GABA-T) were investigated. Furthermore, in silico studies including pharmacophore elucidation, ADMET analysis and molecular docking of these compounds were performed. Among all tested monoterpenes, hydrocarbons [p-cymene, (R)-(+)-limonene and (+)-α-pinene], acetates (cinnamyl acetate, citronellyl acetate, eugenyl acetate and terpinyl acetate), alcohols [(±)-β-citronellol and terpineol], aldehydes [citral and (1R)-(-)-myrtenal] and ketone [(R)-(+)-pulegone] exhibited the highest larval toxicity with LC50 = 14.88, 27.97, 26.13, 2.62, 3.81, 2.74, 21.65, 1.64, 21.70, 21.76, 1.68 and 1.90 mg/L after 48 h of exposure, respectively. The compounds proved a significant inhibition of all tested enzymes except total ATPase. The biochemical and molecular docking studies proved that AChE and GABA-T were the main targets for the tested monoterpenes.
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Affiliation(s)
- Nehad E M Taktak
- Department of Tropical Health, High Institute of Public Health, Alexandria University, Alexandria, Egypt.
| | - Mohamed E I Badawy
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, 21545-El-Shatby, Alexandria University, Alexandria, Egypt
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Petrović J, Stojković D, Soković M. Terpene core in selected aromatic and edible plants: Natural health improving agents. ADVANCES IN FOOD AND NUTRITION RESEARCH 2019; 90:423-451. [PMID: 31445600 DOI: 10.1016/bs.afnr.2019.02.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Aromatic plants synthesize and produce aromatic molecules, among these compounds some of them belong to terpenes and terpenoids. Plant species have specific genes involved in secondary metabolism which allows them to synthesize various compounds with terpene core. These kinds of plant species are also known as herbal drugs and they are primarily used as components in medicinal products or simply as health foods. This chapter will focus on terpene and terpenoid compounds found in selected edible and aromatic plants belonging to several plant families. Selected plant species are briefly discussed. Biologically active compounds with terpene core are most frequently found in essential oils of the edible and aromatic species, as well as they are separately isolated and identified from the extracts. Health beneficial effects coming from terpene compounds found in edible and aromatic plants are further presented and include antimicrobial, antiviral, cytotoxic, anticancer, anti-inflammatory and many other pharmacological activities.
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Affiliation(s)
- Jovana Petrović
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Dejan Stojković
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Marina Soković
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia.
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Citronellol, a monoterpene alcohol with promising pharmacological activities - A systematic review. Food Chem Toxicol 2019; 123:459-469. [DOI: 10.1016/j.fct.2018.11.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/06/2018] [Accepted: 11/12/2018] [Indexed: 12/12/2022]
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Preparation of Ecofriendly Formulations Containing Biologically Active Monoterpenes with Their Fumigant and Residual Toxicities against Adults of Culex pipiens. J Trop Med 2016; 2016:8540830. [PMID: 27891154 PMCID: PMC5116529 DOI: 10.1155/2016/8540830] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 08/24/2016] [Accepted: 08/25/2016] [Indexed: 11/21/2022] Open
Abstract
Different mixtures of monoterpenes (ketone, alcohol, and alkene) were loaded on paper discs and wax and their knockdown activities were evaluated against Culex pipiens adults. Some individual monoterpenes were also evaluated by residual toxicity technique. Citronella oil as a reference was also loaded separately or in combination with monoterpenes on paper discs and wax. The ketone monoterpenes mixture (camphor, menthone, carvone, and fenchone) on paper discs was the most active (KT50 = 17.20 min) followed by ketone monoterpenes with citronella oil (KT50 = 20.79 min) and citronella oil alone (KT50 = 28.72 min). Wax formulations proved that the ketone and alcohol (geraniol, thymol, and menthol) monoterpenes gave the most activity as knockdown (KT50 = 31.79 and 43.39 min, resp.). Alcohol monoterpenes formulation recorded KT50 = 43.39 min. Residual activity of tested individual monoterpenes reported that the menthol was more toxic than camphor and camphene. Generally, this study suggests that the monoterpenes have the properties, which make them used as eco-friendly compounds in the control programs of Cx. pipiens adult. The use of paper discs is more applicable than wax in the adulticidal formulations.
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Lima TC, Kweka EJ, Marciale CM, de Sousa DP. Larvicidal Activity of Essential Oil Constituents against Malaria Vector, Anopheles gambiae (Diptera: Culicidae). Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601101029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Malaria is one of the most important public health problems worldwide. This illness is controlled, mainly, by combating the vector mosquitoes using chemical insecticides, but this use has caused environmental impact and the emergence of tolerance in adult mosquitoes. Herein, we report the larvicidal activity of nine chemical constituents found in essential oils against third-instar larvae of Anopheles gambiae. All the tested compounds showed larval toxicity. Among the nine effective components, citronellol exhibited a pronounced larvicidal effect against the larvae of An. gambiae, with LC50 values of 96.1 and 55.6 ppm after 12 and 24 hours of treatment, respectively; however, hydroxycitronellal was the most potent compound after 48 and 72 h of exposure (LC50=3.7 and 2.3 ppm, respectively), followed by citronellol (LC50=16.7 and 6.3 ppm, respectively). Moreover, larval mortality was concentration- and time-dependent.
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Affiliation(s)
- Tamires Cardoso Lima
- Department of Pharmacy, Federal University of Sergipe, CEP 49100-000, São Cristóvão, Sergipe, Brazil
| | - Eliningaya J. Kweka
- Division of Livestock and Human Diseases Vector Control, Tropical Pesticides Research Institute, P.O. Box 3024, Arusha, Tanzania
- Department of Medical Parasitology and Entomology, Catholic University of Health and Allied Sciences, P.O. Box 1464, Mwanza, Tanzania
| | - Chrian M. Marciale
- Division of Livestock and Human Diseases Vector Control, Tropical Pesticides Research Institute, P.O. Box 3024, Arusha, Tanzania
| | - Damião Pergentino de Sousa
- Department of Pharmacy, Federal University of Sergipe, CEP 49100-000, São Cristóvão, Sergipe, Brazil
- Department of Pharmaceutical Sciences, Federal University of Paraíba, CEP 58051-970, João Pessoa, Paraíba, Brazil
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17
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Mitsopoulou KP, Vidali VP, Koliopoulos G, Couladouros EA, Michaelakis A. Hyperforin and deoxycohumulone as a larvicidal agent against Culex pipiens (Diptera: Culicidae). CHEMOSPHERE 2014; 100:124-129. [PMID: 24377447 DOI: 10.1016/j.chemosphere.2013.11.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 11/23/2013] [Accepted: 11/30/2013] [Indexed: 06/03/2023]
Abstract
The larvicidal effect of hyperforin (1), a bioactive compound of Hypericum perforatum, and deoxycohumulone (2) (biosynthetic precursor of hyperforin) were evaluated against Culex pipiens (Diptera: Culicidae) for the first time. All the acetate analogues (3-6) of hyperforin (1) and deoxycohumulone (2) were also synthesized and bioassayed to provide information on structural requirements for the tested compounds. Larvicidal results revealed that hyperforin (1) and deoxycohumulone (2) exhibited potent activity with LC50 value of 26.72 and 51.03 mg L(-1), respectively. The monoacetyl-deoxycohumulone (4) displayed lower activity with LC50 value of 135.92 mg L(-1), while all other acetate analogues were inactive at concentrations even as high as 150 mg L(-1), indicating that the free hydroxyl groups are essential for the larvicidal activity. The mortality values were increased, more than 80%, when 10 mg L(-1) piperonyl butoxide were added in hyperforin (1) or deoxycohumulone (2) bioassays. Finally, sub-lethal survival analysis is conducted for three doses of hyperforin (1) and deoxycohumulone (2) and results are discussed.
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Affiliation(s)
- Kornilia P Mitsopoulou
- Natural Products Synthesis and Bioorganic Chemistry Laboratory, Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, NCSR "Demokritos" 15310 Ag. Paraskevi, Attiki, POB 60228, Athens, Greece; Chemistry Laboratories, Agricultural University of Athens, 75 Iera Odos Str., 11855 Athens, Greece
| | - Veroniki P Vidali
- Natural Products Synthesis and Bioorganic Chemistry Laboratory, Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, NCSR "Demokritos" 15310 Ag. Paraskevi, Attiki, POB 60228, Athens, Greece
| | - George Koliopoulos
- Laboratory of Biological Control of Pesticides, Benaki Phytopathological Institute, 8 S. Delta Str., 14561 Kifissia, Athens, Greece
| | - Elias A Couladouros
- Natural Products Synthesis and Bioorganic Chemistry Laboratory, Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, NCSR "Demokritos" 15310 Ag. Paraskevi, Attiki, POB 60228, Athens, Greece; Chemistry Laboratories, Agricultural University of Athens, 75 Iera Odos Str., 11855 Athens, Greece
| | - Antonios Michaelakis
- Laboratory of Agricultural Entomology, Department of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 S. Delta Str., 14561 Kifissia, Athens, Greece.
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