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Terajima T, Matsumoto Y, Uehara K, Shimomura K, Tomizawa M. Molecular Recognition Properties of Nicotinic Ligands Determining Selectivity Between Insect and Mammalian Receptors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 39361838 DOI: 10.1021/acs.jafc.4c07271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2024]
Abstract
This investigation defines the roles of various amino acids, neighboring key conserved amino acids in loops C and D of the nicotinic acetylcholine (ACh) receptor (nAChR), in the selective molecular recognition of nicotinic ligands with diverse pharmacophores using Aplysia californica ACh binding protein Y55W (Ac-AChBP) mutants (+Q57R; + Q57R+S189 V; + Q57R+S189E; + Q57T; + Q57T+S189 V; + Q57T+S189E) and Lymnaea stagnalis AChBP (Ls-AChBP) mutants (Q55T; Q55T+S186E; Q55R) as insect and mammalian nAChR structural surrogates, respectively. N-nitro/cyanoimine insecticides show high affinity to four Ac-AChBPs containing Arg57 or Thr57 and Ser189 or Val189, except for those with Glu189. Pyrazinoyl compound selectively interacts with the three Ac-AChBPs containing Arg57 and Ser189, Val189, or Glu189. Cationic ligands prefer three Ac-AChBPs with Thr57 and Ser189, Val189, or Glu189 and two Ls-AChBPs providing Thr55 ± Glu186 over the four Ac- and Ls-AChBPs with Arg57/55. Accordingly, loop C contributes to N-nitro/cyanoimine insecticide action, and loop D controls the affinity of the pyrazinoyl or cationic ligand.
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Affiliation(s)
- Takehito Terajima
- Chemical Biology Laboratory, Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Yutsuki Matsumoto
- Chemical Biology Laboratory, Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Kana Uehara
- Chemical Biology Laboratory, Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Kenji Shimomura
- Chemical Biology Laboratory, Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Motohiro Tomizawa
- Chemical Biology Laboratory, Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
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Terajima T, Ayabe C, Matsumoto Y, Uehara K, Horikoshi R, Suzuki T, Shimomura K, Tomizawa M. Potency and Target Surface Interaction of Diazinoyl Nicotinic Insecticides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12967-12974. [PMID: 38814790 DOI: 10.1021/acs.jafc.4c01499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Structure-activity relationships of diazinoyl nicotinic insecticides (diazinoyl isomers and 5- or 6-substituted pyrazin-2-oyl analogues) are considered in terms of affinity to the insect nicotinic acetylcholine receptor (nAChR) and insecticidal activity against the imidacloprid-resistant brown planthopper. Among the test compounds, 3-(6-chloropyridin-3-ylmethyl)-2-(pyrazinoyl)iminothiazoline shows the highest potency in nAChR affinity and insecticidal activity. Aplysia californica acetylcholine binding protein (AChBP) mutants (Y55W + Q57R and Y55W + Q57T) are utilized to compare molecular recognition of nicotinic insecticides with diverse pharmacophores. N-nitro- or N-cyanoimine imidacloprid or acetamiprid, respectively, exhibits a high affinity to these AChBP mutants at a similar potency level. Intriguingly, the pyrazin-2-oyl analogue has a higher affinity to AChBP Y55W + Q57R than that to Y55W + Q57T, thereby indicating that pyrazine nitrogen atoms contact Arg57 guanidinium and Trp55 indole NH. Furthermore, nicotine prefers AChBP Y55W + Q57T over Y55W + Q57R, conceivably suggesting that the protonated nicotine is repulsed by Arg57 guanidinium, consistent with its inferior potency to insect nAChR.
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Affiliation(s)
- Takehito Terajima
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Chihiro Ayabe
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Yutsuki Matsumoto
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Kana Uehara
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Ryo Horikoshi
- Biological Solutions Research Center, Research and Development Division, Mitsui Chemicals Crop & Life Solutions, Inc., Mobara 297-0017, Chiba, Japan
| | - Tomonori Suzuki
- Department of Molecular Microbiology, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Kenji Shimomura
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Motohiro Tomizawa
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
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Graur A, Haymond A, Lee KH, Viscarra F, Russo P, Luchini A, Paige M, Bermudez-Diaz I, Kabbani N. Protein Painting Mass Spectrometry in the Discovery of Interaction Sites within the Acetylcholine Binding Protein. ACS Chem Neurosci 2024; 15:2322-2333. [PMID: 38804618 PMCID: PMC11157483 DOI: 10.1021/acschemneuro.4c00149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024] Open
Abstract
Nicotinic acetylcholine receptors (nAChRs) are a family of ligand-gated ion channel receptors that contribute to cognition, memory, and motor control in many organisms. The pharmacological targeting of these receptors, using small molecules or peptides, presents an important strategy for the development of drugs that can treat important human diseases, including neurodegenerative disorders. The Aplysia californica acetylcholine binding protein (Ac-AChBP) is a structural surrogate of the nAChR with high homology to the extracellular ligand binding domain of homopentameric nAChRs. In this study, we optimized protein-painting-based mass spectrometry to identify regions of interaction between the Ac-AChBP and several nAChR ligands. Using molecular dyes that adhere to the surface of a solubilized Ac-AChBP complex, we identified amino acid residues that constitute a contact site within the Ac-AChBP for α-bungarotoxin, choline, nicotine, and amyloid-β 1-42. By integrating innovation in protein painting mass spectrometry with computational structural modeling, we present a new experimental tool for analyzing protein interactions of the nAChR.
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Affiliation(s)
- Alexandru Graur
- School
of Systems Biology, George Mason University, Fairfax, Virginia 22030, United States
| | - Amanda Haymond
- Center
for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, Virginia 20110, United States
| | - Kyung Hyeon Lee
- Department
of Chemistry and Biochemistry, George Mason
University, Fairfax, Virginia 20110, United States
| | - Franco Viscarra
- Department
of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Headington, Oxford OX3 0BP, United Kingdom
- Structural
Bioinformatics and Computational Biochemistry, Department of Biochemistry, University of Oxford, Oxford OX1 3QU, United Kingdom
| | - Paul Russo
- Center
for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, Virginia 20110, United States
| | - Alessandra Luchini
- Center
for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, Virginia 20110, United States
| | - Mikell Paige
- Department
of Chemistry and Biochemistry, George Mason
University, Fairfax, Virginia 20110, United States
| | - Isabel Bermudez-Diaz
- Department
of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Headington, Oxford OX3 0BP, United Kingdom
| | - Nadine Kabbani
- School
of Systems Biology, George Mason University, Fairfax, Virginia 22030, United States
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Huang H, Dickhaut J, Weisel M, Mao L, Rankl N, Takeda H, Stam LF, Peacock QM, Höffken HW. Discovery and biological characterization of a novel mesoionic insecticide fenmezoditiaz. PEST MANAGEMENT SCIENCE 2024. [PMID: 38554053 DOI: 10.1002/ps.8108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND Many piercing-sucking insects have developed resistance or cross-resistance to many insecticides targeting insect neural nicotinic acetylcholine receptor (nAChR). Here we are aiming to present the discovery of a novel mesoionic insecticide, fenmezoditiaz, by BASF through structure-based drug design (SBDD) approaches. It has recently been added to the Insecticide Resistance Action Committee mode of classification (IRAC 4E). It is being developed for plant protection against piercing-sucking pests, especially rice hopper complex. RESULTS The soluble acetylcholine binding protein (AChBP) from the sea slug Aplysia californica was modified using site-directed mutagenesis and based on putative aphid nAChR subunit sequences to create soluble insect-like AChBPs. Among them, insect-like β1 AChBP and native aphid membrane preparation showed the highest correlated biochemical affinity toward structurally diverse ligands. This mutant AChBP was used to understand how insect nAChRs structurally interact with mesoionics, which was then utilized to design novel mesoionics including fenmezoditiaz. It is an excellent systemic insecticide with diverse application methods and has a broad insecticidal spectrum, especially against piercing/sucking insects. It lacks cross-resistance for neonicotinoid resistant plant hoppers. Field-collected brown plant hopper populations from Asian countries showed high susceptibility. CONCLUSIONS Fenmezoditiaz is a systemic insecticide with a broad spectrum, lack of cross-resistance and it could be an additional tool for integrated pest management and insecticide resistance management, especially for the rice hopper complex. © 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Huazhang Huang
- BASF Corporation, Global Insecticide Discovery/ Early Biology, Research Triangle Park, Research Triangle Park, NC, USA
| | - Joachim Dickhaut
- BASF SE, Global Insecticide Discovery/ Chemistry at Ludwigshafen, Ludwigshafen am Rhein, Germany
| | - Martin Weisel
- BASF SE, Molecular Modeling & Drug Discovery, Ludwigshafen, Germany
| | - Lixin Mao
- BASF Corporation, Global Insecticide Discovery/ Early Biology, Research Triangle Park, Research Triangle Park, NC, USA
| | - Nancy Rankl
- BASF Corporation, Global Insecticide Discovery/ Early Biology, Research Triangle Park, Research Triangle Park, NC, USA
| | - Haruka Takeda
- Agricultural Solutions, AgSolution Farm Naruto, BASF Japan Ltd, Naruto Sanmu-shi Chiba, Japan
| | - Lynn F Stam
- BASF Corporation, Global Insecticide Discovery/ Early Biology, Research Triangle Park, Research Triangle Park, NC, USA
| | - Quinn M Peacock
- BASF Corporation, Global Insecticide Discovery/ Early Biology, Research Triangle Park, Research Triangle Park, NC, USA
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Grillberger K, Cöllen E, Trivisani CI, Blum J, Leist M, Ecker GF. Structural Insights into Neonicotinoids and N-Unsubstituted Metabolites on Human nAChRs by Molecular Docking, Dynamics Simulations, and Calcium Imaging. Int J Mol Sci 2023; 24:13170. [PMID: 37685977 PMCID: PMC10487998 DOI: 10.3390/ijms241713170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 09/10/2023] Open
Abstract
Neonicotinoid pesticides were initially designed in order to achieve species selectivity on insect nicotinic acetylcholine receptors (nAChRs). However, concerns arose when agonistic effects were also detected in human cells expressing nAChRs. In the context of next-generation risk assessments (NGRAs), new approach methods (NAMs) should replace animal testing where appropriate. Herein, we present a combination of in silico and in vitro methodologies that are used to investigate the potentially toxic effects of neonicotinoids and nicotinoid metabolites on human neurons. First, an ensemble docking study was conducted on the nAChR isoforms α7 and α3β4 to assess potential crucial molecular initiating event (MIE) interactions. Representative docking poses were further refined using molecular dynamics (MD) simulations and binding energy calculations using implicit solvent models. Finally, calcium imaging on LUHMES neurons confirmed a key event (KE) downstream of the MIE. This method was also used to confirm the predicted agonistic effect of the metabolite descyano-thiacloprid (DCNT).
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Affiliation(s)
- Karin Grillberger
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria
| | - Eike Cöllen
- In Vitro Toxicology and Biomedicine, University of Konstanz, 78457 Konstanz, Germany
| | | | - Jonathan Blum
- In Vitro Toxicology and Biomedicine, University of Konstanz, 78457 Konstanz, Germany
| | - Marcel Leist
- In Vitro Toxicology and Biomedicine, University of Konstanz, 78457 Konstanz, Germany
| | - Gerhard F. Ecker
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria
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Hadiatullah H, Zhang Y, Samurkas A, Xie Y, Sundarraj R, Zuilhof H, Qiao J, Yuchi Z. Recent progress in the structural study of ion channels as insecticide targets. INSECT SCIENCE 2022; 29:1522-1551. [PMID: 35575601 DOI: 10.1111/1744-7917.13032] [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: 10/13/2021] [Revised: 02/07/2022] [Accepted: 02/21/2022] [Indexed: 06/15/2023]
Abstract
Ion channels, many expressed in insect neural and muscular systems, have drawn huge attention as primary targets of insecticides. With the recent technical breakthroughs in structural biology, especially in cryo-electron microscopy (cryo-EM), many new high-resolution structures of ion channel targets, apo or in complex with insecticides, have been solved, shedding light on the molecular mechanism of action of the insecticides and resistance mutations. These structures also provide accurate templates for structure-based insecticide screening and rational design. This review summarizes the recent progress in the structural studies of 5 ion channel families: the ryanodine receptor (RyR), the nicotinic acetylcholine receptor (nAChR), the voltage-gated sodium channel (VGSC), the transient receptor potential (TRP) channel, and the ligand-gated chloride channel (LGCC). We address the selectivity of the channel-targeting insecticides by examining the conservation of key coordinating residues revealed by the structures. The possible resistance mechanisms are proposed based on the locations of the identified resistance mutations on the 3D structures of the target channels and their impacts on the binding of insecticides. Finally, we discuss how to develop "green" insecticides with a novel mode of action based on these high-resolution structures to overcome the resistance.
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Affiliation(s)
- Hadiatullah Hadiatullah
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Yongliang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Arthur Samurkas
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Yunxuan Xie
- Department of Environmental Science, Tianjin University, Tianjin, China
| | - Rajamanikandan Sundarraj
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Han Zuilhof
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Jianjun Qiao
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
| | - Zhiguang Yuchi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
- Department of Molecular Pharmacology, Tianjin Medical University Cancer Institute & Hospital; National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin, China
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Butcherine P, Kelaher BP, Benkendorff K. Assessment of acetylcholinesterase, catalase, and glutathione S-transferase as biomarkers for imidacloprid exposure in penaeid shrimp. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 242:106050. [PMID: 34915355 DOI: 10.1016/j.aquatox.2021.106050] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 11/18/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
Shrimp aquaculture is a valuable source of quality seafood that can be impacted by exposure to insecticides, such as imidacloprid. Here, adult black tiger shrimp (Penaeus monodon) were used to evaluate the activity of acetylcholinesterase (AChE), catalase (CAT), and glutathione S-transferase (GST) in abdominal, head, gill, and hepatopancreas tissue as biomarkers for imidacloprid exposure. Adult P. monodon were continuously exposed to imidacloprid in water (5 μgL-1 and 30 μgL-1) or feed (12.5 μg g-1 and 75 μg g-1) for either 4 or 21 days. The imidacloprid concentration in shrimp tissues was determined using liquid chromatography-mass spectrometry after QuEChER extraction, and AChE, CAT, and GST activities were estimated by spectrophotometric assay. Imidacloprid exposure in shrimp elevated the activity of biomarkers, and the enzymatic activity was positively correlated to tissue imidacloprid accumulation, although the effects varied in a tissue-, dose- and time-dependent manner. AChE activity was correlated to imidacloprid concentration in the abdominal tissue of shrimp and was likely related to neural tissue distribution, while the activity of CAT and GST confirmed a generalised anti-oxidant stress response. AChE, CAT, and GST were valuable biomarkers for assessing shrimp response to imidacloprid exposure from dietary or water sources, and the abdominal tissue was the most reliable for exposure assessment. An elevated response in each of these biomarkers during routine monitoring could provide an early warning of shrimp stress, suggesting that investigating potential contamination by neonicotinoid pesticides would be worthwhile.
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Affiliation(s)
- Peter Butcherine
- Marine Ecology Research Centre, National Marine Science Centre, Southern Cross University, 2 Bay Drive Coffs Harbour, NSW 2450, Australia
| | - Brendan P Kelaher
- Marine Ecology Research Centre, National Marine Science Centre, Southern Cross University, 2 Bay Drive Coffs Harbour, NSW 2450, Australia
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, National Marine Science Centre, Southern Cross University, 2 Bay Drive Coffs Harbour, NSW 2450, Australia.
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Terajima T, Suzuki T, Horikoshi R, Doi S, Nakamura M, Kobayashi F, Durkin KA, Shimomura K, Nakamura S, Yamamoto K, Tomizawa M. Deciphering the Flupyrimin Binding Surface on the Insect Nicotinic Acetylcholine Receptor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:9551-9556. [PMID: 34374535 DOI: 10.1021/acs.jafc.1c03241] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A novel insecticide flupyrimin (FLP) with a trifluoroacetyl pharmacophore acts as an antagonist at the insect nicotinic acetylcholine receptor (nAChR). This investigation examines a hypothesis that the FLP C(O)CF3 moiety is primarily recognized by the β subunit-face in the ligand-binding pocket (interface between α and β subunits) of the insect nAChR. Accordingly, we evaluate the atomic interaction between a fluorine atom of FLP and the partnering amino acid side chain on the β subunit employing a recombinant hybrid nAChR consisting of aphid Mpα2 and rat Rβ2 subunits (with a mutation at T77 on the Rβ2). The H-donating T77R, T77K, T77N, or T77Q nAChR enhances the FLP binding potency relative to that of the wild-type receptor, whereas the affinity of neonicotinoid imidaclprid (IMI) with a nitroguanidine pharmacophore remains unchanged. These results facilitate the establishment of the unique FLP molecular recognition at the Mpα2/Mpβ1 interface structural model, thereby underscoring a distinction in its binding mechanism from IMI.
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Affiliation(s)
- Takehito Terajima
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Tomonori Suzuki
- Department of Molecular Microbiology, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Ryo Horikoshi
- Agricultural and Veterinary Research Labs, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd., Yokohama, Kanagawa 222-8567, Japan
| | - Shohei Doi
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Mizuki Nakamura
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Fumika Kobayashi
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Kathleen A Durkin
- College of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - Kenji Shimomura
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
| | - Satoshi Nakamura
- Agricultural and Veterinary Research Labs, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd., Yokohama, Kanagawa 222-8567, Japan
| | - Kazumi Yamamoto
- Agricultural and Veterinary Research Labs, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd., Yokohama, Kanagawa 222-8567, Japan
| | - Motohiro Tomizawa
- Department of Chemistry, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan
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Luna-Hernández SA, Bonilla-Landa I, Reyes-Luna A, Rodríguez-Hernández A, Cuapio-Muñoz U, Ibarra-Juárez LA, Suarez-Mendez G, Barrera-Méndez F, Pérez-Landa ID, Enríquez-Medrano FJ, Díaz de León-Gómez RE, Olivares-Romero JL. Synthesis and Insecticidal Evaluation of Chiral Neonicotinoids Analogs: The Laurel Wilt Case. Molecules 2021; 26:molecules26144225. [PMID: 34299501 PMCID: PMC8307524 DOI: 10.3390/molecules26144225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/24/2021] [Accepted: 07/05/2021] [Indexed: 11/16/2022] Open
Abstract
Xyleborus sp beetles are types of ambrosia beetles invasive to the United States and recently also to Mexico. The beetle can carry a fungus responsible for the Laurel Wilt, a vascular lethal disease that can host over 300 tree species, including redbay and avocado. This problem has a great economic and environmental impact. Indeed, synthetic chemists have recently attempted to develop new neonicotinoids. This is also due to severe drug resistance to “classic” insecticides. In this research, a series of neonicotinoids analogs were synthesized, characterized, and evaluated against Xyleborus sp. Most of the target compounds showed good to excellent insecticidal activity. Generally, the cyclic compounds also showed better activity in comparison with open-chain compounds. Compounds R-13, 23, S-29, and 43 showed a mortality percent of up to 73% after 12 h of exposure. These results highlight the enantioenriched compounds with absolute R configuration. The docking results correlated with experimental data which showed both cation-π interactions in relation to the aromatic ring and hydrogen bonds between the search cavity 3C79 and the novel molecules. The results suggest that these sorts of interactions are responsible for high insecticidal activity.
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Affiliation(s)
- Saúl A. Luna-Hernández
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Israel Bonilla-Landa
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Alfonso Reyes-Luna
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Alfredo Rodríguez-Hernández
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Ulises Cuapio-Muñoz
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Luis A. Ibarra-Juárez
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Gabriel Suarez-Mendez
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Felipe Barrera-Méndez
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
- Cátedra CONACyT en el Instituto de Ecología, A.C. Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico
| | - Irving D. Pérez-Landa
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
| | - Francisco J. Enríquez-Medrano
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna, No. 140, Saltillo 25294, Mexico; (F.J.E.-M.); (R.E.D.d.L.-G.)
| | - Ramón E. Díaz de León-Gómez
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna, No. 140, Saltillo 25294, Mexico; (F.J.E.-M.); (R.E.D.d.L.-G.)
| | - José L. Olivares-Romero
- Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic®, Campus III, Carretera Antigua a Coatepec No. 351, Xalapa 91073, Mexico; (S.A.L.-H.); (I.B.-L.); (A.R.-L.); (A.R.-H.); (U.C.-M.); (L.A.I.-J.); (G.S.-M.); (F.B.-M.); (I.D.P.-L.)
- Correspondence:
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10
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Halder N, Lal G. Cholinergic System and Its Therapeutic Importance in Inflammation and Autoimmunity. Front Immunol 2021; 12:660342. [PMID: 33936095 PMCID: PMC8082108 DOI: 10.3389/fimmu.2021.660342] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/26/2021] [Indexed: 12/11/2022] Open
Abstract
Neurological and immunological signals constitute an extensive regulatory network in our body that maintains physiology and homeostasis. The cholinergic system plays a significant role in neuroimmune communication, transmitting information regarding the peripheral immune status to the central nervous system (CNS) and vice versa. The cholinergic system includes the neurotransmitter\ molecule, acetylcholine (ACh), cholinergic receptors (AChRs), choline acetyltransferase (ChAT) enzyme, and acetylcholinesterase (AChE) enzyme. These molecules are involved in regulating immune response and playing a crucial role in maintaining homeostasis. Most innate and adaptive immune cells respond to neuronal inputs by releasing or expressing these molecules on their surfaces. Dysregulation of this neuroimmune communication may lead to several inflammatory and autoimmune diseases. Several agonists, antagonists, and inhibitors have been developed to target the cholinergic system to control inflammation in different tissues. This review discusses how various molecules of the neuronal and non-neuronal cholinergic system (NNCS) interact with the immune cells. What are the agonists and antagonists that alter the cholinergic system, and how are these molecules modulate inflammation and immunity. Understanding the various functions of pharmacological molecules could help in designing better strategies to control inflammation and autoimmunity.
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Affiliation(s)
- Namrita Halder
- Laboratory of Autoimmunity and Tolerance, National Centre for Cell Science, Ganeshkhind, Pune, India
| | - Girdhari Lal
- Laboratory of Autoimmunity and Tolerance, National Centre for Cell Science, Ganeshkhind, Pune, India
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11
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Loser D, Hinojosa MG, Blum J, Schaefer J, Brüll M, Johansson Y, Suciu I, Grillberger K, Danker T, Möller C, Gardner I, Ecker GF, Bennekou SH, Forsby A, Kraushaar U, Leist M. Functional alterations by a subgroup of neonicotinoid pesticides in human dopaminergic neurons. Arch Toxicol 2021; 95:2081-2107. [PMID: 33778899 PMCID: PMC8166715 DOI: 10.1007/s00204-021-03031-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/17/2021] [Indexed: 12/16/2022]
Abstract
Neonicotinoid pesticides, originally developed to target the insect nervous system, have been reported to interact with human receptors and to activate rodent neurons. Therefore, we evaluated in how far these compounds may trigger signaling in human neurons, and thus, affect the human adult or developing nervous system. We used SH-SY5Y neuroblastoma cells as established model of nicotinic acetylcholine receptor (nAChR) signaling. In parallel, we profiled dopaminergic neurons, generated from LUHMES neuronal precursor cells, as novel system to study nAChR activation in human post-mitotic neurons. Changes of the free intracellular Ca2+ concentration ([Ca2+]i) were used as readout, and key findings were confirmed by patch clamp recordings. Nicotine triggered typical neuronal signaling responses that were blocked by antagonists, such as tubocurarine and mecamylamine. Pharmacological approaches suggested a functional expression of α7 and non-α7 nAChRs on LUHMES cells. In this novel test system, the neonicotinoids acetamiprid, imidacloprid, clothianidin and thiacloprid, but not thiamethoxam and dinotefuran, triggered [Ca2+]i signaling at 10-100 µM. Strong synergy of the active neonicotinoids (at low micromolar concentrations) with the α7 nAChR-positive allosteric modulator PNU-120596 was observed in LUHMES and SH-SY5Y cells, and specific antagonists fully inhibited such signaling. To provide a third line of evidence for neonicotinoid signaling via nAChR, we studied cross-desensitization: pretreatment of LUHMES and SH-SY5Y cells with active neonicotinoids (at 1-10 µM) blunted the signaling response of nicotine. The pesticides (at 3-30 µM) also blunted the response to the non-α7 agonist ABT 594 in LUHMES cells. These data show that human neuronal cells are functionally affected by low micromolar concentrations of several neonicotinoids. An effect of such signals on nervous system development is a toxicological concern.
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Affiliation(s)
- Dominik Loser
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770, Reutlingen, Germany
- NMI TT GmbH, 72770, Reutlingen, Germany
- In Vitro Toxicology and Biomedicine, Department Inaugurated by the Doerenkamp-Zbinden Foundation, University of Konstanz, Universitaetsstr. 10, 78457, Konstanz, Germany
| | - Maria G Hinojosa
- Department of Biochemistry and Biophysics, Stockholm University, 106 91, Stockholm, Sweden
| | - Jonathan Blum
- In Vitro Toxicology and Biomedicine, Department Inaugurated by the Doerenkamp-Zbinden Foundation, University of Konstanz, Universitaetsstr. 10, 78457, Konstanz, Germany
| | - Jasmin Schaefer
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770, Reutlingen, Germany
- NMI TT GmbH, 72770, Reutlingen, Germany
| | - Markus Brüll
- In Vitro Toxicology and Biomedicine, Department Inaugurated by the Doerenkamp-Zbinden Foundation, University of Konstanz, Universitaetsstr. 10, 78457, Konstanz, Germany
| | - Ylva Johansson
- Department of Biochemistry and Biophysics, Stockholm University, 106 91, Stockholm, Sweden
| | - Ilinca Suciu
- In Vitro Toxicology and Biomedicine, Department Inaugurated by the Doerenkamp-Zbinden Foundation, University of Konstanz, Universitaetsstr. 10, 78457, Konstanz, Germany
| | - Karin Grillberger
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
| | - Timm Danker
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770, Reutlingen, Germany
- NMI TT GmbH, 72770, Reutlingen, Germany
| | - Clemens Möller
- Life Sciences Faculty, Albstadt-Sigmaringen University, 72488, Sigmaringen, Germany
| | - Iain Gardner
- CERTARA UK Limited, Simcyp Division, Level 2-Acero, 1 Concourse Way, Sheffield, S1 2BJ, UK
| | - Gerhard F Ecker
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
| | | | - Anna Forsby
- Department of Biochemistry and Biophysics, Stockholm University, 106 91, Stockholm, Sweden
| | - Udo Kraushaar
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770, Reutlingen, Germany
| | - Marcel Leist
- In Vitro Toxicology and Biomedicine, Department Inaugurated by the Doerenkamp-Zbinden Foundation, University of Konstanz, Universitaetsstr. 10, 78457, Konstanz, Germany.
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12
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Bonilla-Landa I, Cuapio-Muñoz U, Luna-Hernández A, Reyes-Luna A, Rodríguez-Hernández A, Ibarra-Juarez A, Suarez-Mendez G, Barrera-Méndez F, Caram-Salas N, Enríquez-Medrano JF, Díaz de León RE, Olivares-Romero JL. l-Proline as a Valuable Scaffold for the Synthesis of Novel Enantiopure Neonicotinoids Analogs. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1455-1465. [PMID: 33497218 DOI: 10.1021/acs.jafc.0c05997] [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] [Indexed: 06/12/2023]
Abstract
In this research, six neonicotinoid analogs derived from l-proline were synthesized, characterized, and evaluated as insecticides against Xyleborus affinis. Most of the target compounds showed good to excellent insecticidal activity. To the best of our knowledge, this is the first report dealing with the use of enantiopure l-proline to get neonicotinoids. These results highlighted the compound 9 as an excellent candidate used as the lead chiral insecticide for future development. Additionally, molecular docking with the receptor and compound 9 was carried out to gain insight into its high activity when compared to dinotefuran. Finally, the neurotoxic evaluation of compound 9 showed lower toxicity than the classic neonicotinoid dinotefuran.
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Affiliation(s)
- Israel Bonilla-Landa
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
| | - Ulises Cuapio-Muñoz
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
| | - Axel Luna-Hernández
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
| | - Alfonso Reyes-Luna
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
| | - Alfredo Rodríguez-Hernández
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
| | - Arturo Ibarra-Juarez
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
- Cátedra CONACyT en el, Instituto de Ecología AC, Xalapa Veracruz México
| | - Gabriel Suarez-Mendez
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
| | - Felipe Barrera-Méndez
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
- Cátedra CONACyT en el, Instituto de Ecología AC, Xalapa Veracruz México
| | - Nadia Caram-Salas
- Centro de Investigación Científica y de Educación Superior de Ensenada. Carretera Tijuana-Ensenada 3918, Fraccionamiento Zona Playitas, 22860 Ensenada, B.C. México
- Cátedra CONACyT en el CICESE, Instituto de Ecología AC, Xalapa Veracruz México
| | | | - Ramón E Díaz de León
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna 140, 25294 Saltillo, Coahuila México
| | - José Luis Olivares-Romero
- Red de Estudios Moleculares Avanzados, Clúster Científico y Tecnológico BioMimic, Campus III, Instituto de Ecología, A.C. Carretera Antigua a Coatepec 351, 91073 Xalapa, Veracruz México
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13
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Herbert LT, Cossi PF, Painefilú JC, Mengoni Goñalons C, Luquet CM, Kristoff G. Acute neurotoxicity evaluation of two anticholinesterasic insecticides, independently and in mixtures, and a neonicotinoid on a freshwater gastropod. CHEMOSPHERE 2021; 265:129107. [PMID: 33288284 DOI: 10.1016/j.chemosphere.2020.129107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/05/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Neurotoxic insecticides are ubiquitous in aquatic ecosystems, frequently as part of complex mixtures. Freshwater gastropods are generally underrepresented in neurotoxicity evaluations and cumulative toxicity testing. This study investigates the behavioural and biochemical effects of acute exposures to the carbamate carbaryl, the organophosphate chlorpyrifos, and the neonicotinoid acetamiprid on the freshwater gastropod Chilina gibbosa. First, we evaluated behavioural neurotoxicity and cholinesterase (ChE), carboxylesterase (CE), and glutathione S-transferase (GST) activities in acute (48h) single-chemical exposures to increasing concentrations of carbaryl (0.5-500 μg L-1), chlorpyrifos (10-7500 μg L-1), and acetamiprid (1-10000 μg L-1). We then studied the effects of acute (48h) exposures to binary mixtures of carbaryl and chlorpyrifos equivalent to 0.5, 1, and 1.5 ChE 48h-IC50. None of the insecticides caused severe behavioural neurotoxicity, except for a significant lack of adherence by 5000 μg L-1 chlorpyrifos. Carbaryl caused concentration-dependent inhibition of ChEs (NOEC 5 μg L-1; 48h-IC50 45 μg L-1) and CEs with p-nitrophenyl butyrate as substrate (NOEC 5 μg L-1; 48h-IC50 37 μg L-1). Chlorpyrifos caused concentration-dependent inhibition of ChEs (NOEC 50 μg L-1; 48h-IC50 946 μg L-1) but did not affect CEs (NOEC ≥7500 μg L-1). Carbaryl-chlorpyrifos mixtures inhibited ChEs additively, inhibited CEs with p-nitrophenyl butyrate, and did not affect behaviour. GST activity was not affected by single or mixture exposures. Acute exposure to acetamiprid did not affect any of the endpoints evaluated. This study provides new information on carbaryl, chlorpyrifos, and acetamiprid toxicity on C. gibbosa, relevant to improve gastropod representation in ecotoxicological risk assessment.
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Affiliation(s)
- Lucila Thomsett Herbert
- Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica, Laboratorio de Ecotoxicología Acuática: Invertebrados Nativos, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires. Instituto de Química Biológica de La Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina.
| | - Paula Fanny Cossi
- Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica, Laboratorio de Ecotoxicología Acuática: Invertebrados Nativos, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires. Instituto de Química Biológica de La Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina.
| | - Julio César Painefilú
- Laboratorio de Ecotoxicología Acuática (INIBIOMA, UNCo-CONICET)-CEAN, Junín de Los Andes, Neuquén, Argentina.
| | | | - Carlos Marcelo Luquet
- Laboratorio de Ecotoxicología Acuática (INIBIOMA, UNCo-CONICET)-CEAN, Junín de Los Andes, Neuquén, Argentina.
| | - Gisela Kristoff
- Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica, Laboratorio de Ecotoxicología Acuática: Invertebrados Nativos, Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires. Instituto de Química Biológica de La Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina.
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14
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Ewere EE, Reichelt-Brushett A, Benkendorff K. Impacts of Neonicotinoids on Molluscs: What We Know and What We Need to Know. TOXICS 2021; 9:21. [PMID: 33499264 PMCID: PMC7911472 DOI: 10.3390/toxics9020021] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/14/2021] [Accepted: 01/19/2021] [Indexed: 12/14/2022]
Abstract
The broad utilisation of neonicotinoids in agriculture has led to the unplanned contamination of adjacent terrestrial and aquatic systems around the world. Environmental monitoring regularly detects neonicotinoids at concentrations that may cause negative impacts on molluscs. The toxicity of neonicotinoids to some non-target invertebrates has been established; however, information on mollusc species is limited. Molluscs are likely to be exposed to various concentrations of neonicotinoids in the soil, food and water, which could increase their vulnerability to other sources of mortality and cause accidental exposure of other organisms higher in the food chain. This review examines the impacts of various concentrations of neonicotinoids on molluscs, including behavioural, physiological and biochemical responses. The review also identifies knowledge gaps and provides recommendations for future studies, to ensure a more comprehensive understanding of impacts from neonicotinoid exposure to molluscs.
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Affiliation(s)
- Endurance E Ewere
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, P.O. Box 157, Lismore, NSW 2480, Australia; (E.E.E.); (A.R.-B.)
- Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, PMB 1154 Benin City, Nigeria
| | - Amanda Reichelt-Brushett
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, P.O. Box 157, Lismore, NSW 2480, Australia; (E.E.E.); (A.R.-B.)
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, P.O. Box 157, Lismore, NSW 2480, Australia; (E.E.E.); (A.R.-B.)
- National Marine Science Centre, School of Environment, Science and Engineering, Southern Cross University, 2 Bay Drive, Coffs Harbour, NSW 2450, Australia
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15
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Ewere EE, Reichelt-Brushett A, Benkendorff K. The neonicotinoid insecticide imidacloprid, but not salinity, impacts the immune system of Sydney rock oyster, Saccostrea glomerata. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140538. [PMID: 32634691 DOI: 10.1016/j.scitotenv.2020.140538] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/12/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
The broad utilisation of neonicotinoids, particularly imidacloprid (IMI), in agriculture has led to unplanned contamination of aquatic systems around the world. The sublethal effects of individual pesticides on the immune system of oysters, as well as their combined effects with other environmental stressors that fluctuate in estuarine environments, such as salinity, are yet to be investigated in ecotoxicology. We investigated the acute (4 d) toxicity of IMI in two salinity regimes on the immune parameters of Sydney rock oysters (SRO), including total hemocyte counts (THC), differential hemocyte counts (DHC), phagocytosis and hemocyte aggregation (HA), hemolymph protein expression and enzyme (catalase (CAT), glutathione S-transferase (GST) and acetylcholinesterase (AChE)) activities. Environmentally relevant concentrations of IMI were found to cause an increase in THC, induce GST activity, reduce HA, and inhibit AChE activity. However, DHC, CAT activity and phagocytosis were not significantly impacted at any test concentration at either salinity. IMI concentrations ≥0.01 mg/L significantly altered the expression of 28 proteins in the hemolymph of SRO, including an increase in the relative expression of extracellular superoxide dismutase, severin, ATP synthase subunit beta, as well as stress response proteins (heat shock proteins, serine/threonine-protein kinase DCLK3 and peroxiredoxin-1), and a decrease/absence of collagen alpha-4 (VI) and alpha-6 (VI) chain, metalloendopeptidase, L-ascorbate oxidase, transporter, CEP209_CC5 domain-containing protein and actin. This study indicates that the immune system of SRO can be impacted at environmentally relevant concentrations of IMI, but reduced salinity does not appear to influence the toxicity of this insecticide.
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Affiliation(s)
- Endurance E Ewere
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Amanda Reichelt-Brushett
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia
| | - Kirsten Benkendorff
- Marine Ecology Research Centre, School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW 2450, Australia.
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16
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Singh A, Leppanen C. Known Target and Nontarget Effects of the Novel Neonicotinoid Cycloxaprid to Arthropods: A Systematic Review. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2020; 16:831-840. [PMID: 32592520 DOI: 10.1002/ieam.4305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 05/05/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
Neonicotinoids are the most widely used insecticide class worldwide, and unfortunately, the widely used neonicotinoid imidacloprid is problematic for pollinators and other nontarget organisms. These nontarget impacts and the development of resistance prompt the ongoing development and testing of new neonicotinoids. The novel neonicotinoid cycloxaprid was described in 2011 and registered in China in 2015. Studies investigating its use and effect on target and nontarget species are recent and ongoing, and empirical evidence has not yet been collectively considered. Therefore, a systematic review was performed to identify and summarize data associated with target and nontarget, lethal and sublethal impacts of cycloxaprid for its use as a new insecticide. We performed keyword literature searches in Web of Science, PubMed, Academic Search Complete, and Google Scholar and explored citations used in identified articles. The search strategy yielded 66 citations; 25 citations fulfilled eligibility criteria and were included in the review. Under experimental conditions, cycloxaprid reduced populations of plant-feeding insect pests, suppressed populations of sucking and biting insect pests, and affected reproduction, development time, longevity, growth, gene regulation and expression, and phloem-feeding behavior of various life stages of certain insects. Studies focus on pest control efficacy and comparison with imidacloprid. Five nontarget organisms have been evaluated: Apis mellifera, Chrysoperla sinica, Harmonia axyridis, Daphnia magna, and Eisenia fetida. Variation in study design, to date, precludes a metaanalysis. However, these results provide valuable insight into possible effects to target and nontarget arthropods. Because cycloxaprid is a new insecticide, additional research is needed to clarify the mechanism of action of cycloxaprid and its metabolites, and to determine if it harms natural enemies or other nontarget organisms, if resistance develops, and if it exhibits cross-resistance with other insecticides. Although research on target arthropods will inform some effects on nontarget organisms, studies focusing explicitly on impacts to nontarget organisms are needed. Integr Environ Assess Manag 2020;16:831-840. © 2020 SETAC.
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Affiliation(s)
- Anisha Singh
- Department of Public Health, University of Tennessee, Knoxville, Tennessee, USA
| | - Christy Leppanen
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, USA
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17
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Muth F, Francis JS, Leonard AS. Modality-specific impairment of learning by a neonicotinoid pesticide. Biol Lett 2019; 15:20190359. [PMID: 31362607 DOI: 10.1098/rsbl.2019.0359] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Neonicotinoid pesticides can impair bees' ability to learn and remember information about flowers, critical for effective foraging. Although these effects on cognition may contribute to broader effects on health and performance, to date they have largely been assayed in simplified protocols that consider learning in a single sensory modality, usually olfaction. Given that real flowers display a variety of potentially useful signals, we assessed the effects of acute neonicotinoid exposure on multimodal learning in free-flying bumblebees. We found that neonicotinoid consumption differentially impacted learning of floral stimuli, impairing scent, but not colour, learning. These findings raise questions about the mechanisms by which pesticides might differentially impair sensory systems, with implications for how neonicotinoids affect multiple aspects of bee ecology.
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Affiliation(s)
- Felicity Muth
- Department of Integrative Biology, University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
| | - Jacob S Francis
- Department of Biology, University of Nevada, Reno, NV 89557, USA
| | - Anne S Leonard
- Department of Biology, University of Nevada, Reno, NV 89557, USA
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18
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Alamiddine Z, Thany S, Graton J, Le Questel JY. Conformations and Binding Properties of Thiametoxam and Clothianidin Neonicotinoid Insecticides to Nicotinic Acetylcholine Receptors: The Contribution of σ-Hole Interactions. Chemphyschem 2018; 19:3069-3083. [DOI: 10.1002/cphc.201800656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Zakaria Alamiddine
- CEISAM UMR CNRS 6230; Faculté des Sciences et des Techniques; Université de Nantes; 2 rue de la Houssinière BP 92208 Nantes F- 44322 France
| | - Steeve Thany
- Université d'Orléans; Laboratoire Biologie des Ligneux et des Grandes Cultures; UPRES EA 1207-USC INRA 1328; Rue de Chartres BP 6759. 45067 Orléans Cedex 2 France
| | - Jérôme Graton
- CEISAM UMR CNRS 6230; Faculté des Sciences et des Techniques; Université de Nantes; 2 rue de la Houssinière BP 92208 Nantes F- 44322 France
| | - Jean-Yves Le Questel
- CEISAM UMR CNRS 6230; Faculté des Sciences et des Techniques; Université de Nantes; 2 rue de la Houssinière BP 92208 Nantes F- 44322 France
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19
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Moncaleano-Niño AM, Luna-Acosta A, Gómez-Cubillos MC, Villamil L, Ahrens MJ. Cholinesterase activity in the cup oyster Saccostrea sp. exposed to chlorpyrifos, imidacloprid, cadmium and copper. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 151:242-254. [PMID: 29353174 DOI: 10.1016/j.ecoenv.2017.12.057] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/18/2017] [Accepted: 12/28/2017] [Indexed: 06/07/2023]
Abstract
In the present study, the sensitivity and concentration dependence of three functionally-defined components of cholinesterase activity (total: T-ChE; eserine-sensitive: Es-ChE; and eserine-resistant: Er-ChE) were quantified in the gill, digestive gland and adductor muscle of the tropical cup oyster Saccostrea sp., following acute (96h) aqueous exposure to commercial formulations of the organophosphate (OP) insecticide chlorpyrifos and the neonicotinoid (NN) imidacloprid (concentration range: 0.1-100mg/L), as well as to dissolved cadmium and copper (concentration range: 1-1000μg/L). Oysters (1.5-5.0cm shell length), field-collected from a boating marina in Santa Marta, Colombia (Caribbean Sea) were exposed in the laboratory to each substance at five concentrations. T-ChE, Es-ChE, and Er-ChE activity were quantified in the three tissues in pools of 5 individuals (3 replicates per concentration), before and after inhibition with the total cholinesterase inhibitor eserine (physostigmine, 100µM). Oysters exposed to chlorpyrifos, imidacloprid and Cd showed reduced T-ChE and Es-ChE activity in gills at highest exposure concentrations, with Es-ChE activity being inhibited proportionally more so than T-ChE, whereas Er-ChE activity showed no significant concentration-response. Digestive gland also showed diminished T-ChE, Es-ChE and Er-ChE activity for highest chlorpyrifos and Cd concentrations relative to controls, but an increase of T-ChE and Er-ChE activity at the highest imidacloprid concentration (100mg/L). For Cu, T-ChE, Es-ChE and Er-ChE activities in gills and digestive gland were elevated relative to controls in oysters exposed to Cu concentrations > 100µg/L. In adductor muscle, T-ChE, Es-ChE and Er-ChE activity showed no apparent pattern for any of the four xenobiotics and concentration levels tested. Although this study confirms acute (96h) concentration-dependent reduction of tissue T-ChE and Es-ChE activity in gills and digestive glands of Saccostrea sp. exposed to high concentrations of chlorpyrifos (100mg/L), significant changes in T-ChE, Es-ChE and Er-ChE were also caused by exposure to Cd and Cu at concentrations > 100µg/L and by exposure to imidacloprid (100mg/L), indicating that cholinesterase activity is not a specific biomarker of organophosphate exposure in this species, but, rather, a biomarker of diverse xenobiotic exposure.
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Affiliation(s)
- Angela M Moncaleano-Niño
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
| | - Andrea Luna-Acosta
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
| | - Maria Camila Gómez-Cubillos
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
| | - Luisa Villamil
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia
| | - Michael J Ahrens
- Department of Biological Sciences, Universidad de Bogota Jorge Tadeo Lozano, Carrera 4 No. 22-61, Bogota, Colombia.
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20
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Zhang Y, Han Y, Yang Q, Wang L, He P, Liu Z, Li Z, Guo H, Fang J. Resistance to cycloxaprid in Laodelphax striatellus is associated with altered expression of nicotinic acetylcholine receptor subunits. PEST MANAGEMENT SCIENCE 2018; 74:837-843. [PMID: 28991400 DOI: 10.1002/ps.4757] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 09/23/2017] [Accepted: 10/04/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Cycloxaprid is a new oxabridged cis-configuration neonicotinoid insecticide, the resistance development potential and underlying resistance mechanism of which were investigated in the small brown planthopper, Laodelphax striatellus (Fallén), an important agricultural pest of rice. RESULTS A cycloxaprid-resistant strain (YN-CPD) only achieved 10-fold higher resistance, in contrast to 106-fold higher resistance to buprofezin and 332-fold higher resistance to chlorpyrifos achieved after exposure to similar selection pressure, and the cycloxaprid selected line showed no cross-resistance to the buprofezin and chlorpyrifos-selected resistance strains. Moreover, we identified 10 nicotinic acetylcholine receptor (nAChR) subunits from the transcriptome of L. striatellus, and six segments had open reading frames (ORFs). While we did not find mutations in the nAChR genes of L. striatellus, subunits Lsα1 and Lsβ1 exhibited, respectively, 9.60-fold and 3.36-fold higher expression in the resistant strain, while Lsα8 exhibited 0.44-fold lower expression. Suppression of Lsα1 through ingestion of dsLsα1 led to an increase in susceptibility to cycloxaprid. CONCLUSION The findings indicate that resistance to cycloxaprid develops slowly compared with resistance to other chemicals and without cross-resistance to chlorpyrifos or buprofezin; over-expressed Lsα1 is associated with low cycloxaprid resistance levels, but the importance of over-expressed Lsβ1 and reduced expression of Lsα8 could not be excluded. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Yueliang Zhang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China
| | - Yangchun Han
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China
| | - Qiong Yang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China
| | - Lihua Wang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China
| | - Peng He
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Zewen Liu
- Key Laboratory of Monitoring and Management of Plant Disease and Insects, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Huifang Guo
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China
| | - Jichao Fang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China
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21
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Casida JE. Neonicotinoids and Other Insect Nicotinic Receptor Competitive Modulators: Progress and Prospects. ANNUAL REVIEW OF ENTOMOLOGY 2018; 63:125-144. [PMID: 29324040 DOI: 10.1146/annurev-ento-020117-043042] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Neonicotinoids (neonics) are remarkably effective as plant systemics to control sucking insects and for flea control on dogs and cats. The nitroimines imidacloprid, clothianidin, thiamethoxam, and dinotefuran are the leaders among the seven commercial neonics that also include the nitromethylene nitenpyram, the nitromethylene-derived cycloxaprid, and the cyanoimines acetamiprid and thiacloprid. Honey bees are highly sensitive to the nitroimines and nitromethylenes, but the cyanoimines are less toxic. All neonics are nicotinic acetylcholine receptor (nAChR) agonists with a common mode of action, target-site cross-resistance, and much higher potency on insect than mammalian nAChRs at defined binding sites. The structurally related sulfoximine sulfoxaflor and butenolide flupyradifurone are also nAChR agonists, and the mesoionic triflumezopyrim is a nAChR competitive modulator with little or no target-site cross-resistance. Some neonics induce stress tolerance in plants via salicylate-associated systems. The neonics in general are readily metabolized and, except for pollinators, have favorable toxicological profiles.
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Affiliation(s)
- John E Casida
- Environmental Chemistry and Toxicology Laboratory, Department of Environmental Science, Policy, and Management, University of California, Berkeley, California 94720;
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22
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Onozaki Y, Horikoshi R, Ohno I, Kitsuda S, Durkin KA, Suzuki T, Asahara C, Hiroki N, Komabashiri R, Shimizu R, Furutani S, Ihara M, Matsuda K, Mitomi M, Kagabu S, Uomoto K, Tomizawa M. Flupyrimin: A Novel Insecticide Acting at the Nicotinic Acetylcholine Receptors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:7865-7873. [PMID: 28820587 DOI: 10.1021/acs.jafc.7b02924] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel chemotype insecticide flupyrimin (FLP) [N-[(E)-1-(6-chloro-3-pyridinylmethyl)pyridin-2(1H)-ylidene]-2,2,2-trifluoroacetamide], discovered by Meiji Seika Pharma, has unique biological properties, including outstanding potency to imidacloprid (IMI)-resistant rice pests together with superior safety toward pollinators. Intriguingly, FLP acts as a nicotinic antagonist in American cockroach neurons, and [3H]FLP binds to the multiple high-affinity binding components in house fly nicotinic acetylcholine (ACh) receptor (nAChR) preparation. One of the [3H]FLP receptors is identical to the IMI receptor, and the alternative is IMI-insensitive subtype. Furthermore, FLP is favorably safe to rats as predicted by the very low affinity to the rat α4β2 nAChR. Structure-activity relationships of FLP analogues in terms of receptor potency, featuring the pyridinylidene and trifluoroacetyl pharmacophores, were examined, thereby establishing the FLP molecular recognition at the Aplysia californica ACh-binding protein, a suitable structural surrogate of the insect nAChR. These FLP pharmacophores account for the excellent receptor affinity, accordingly revealing differences in its binding mechanism from IMI.
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Affiliation(s)
- Yasumichi Onozaki
- Agricultural and Veterinary Research Laboratories, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd. , Yokohama, Kanagawa 222-8567, Japan
| | - Ryo Horikoshi
- Agricultural and Veterinary Research Laboratories, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd. , Yokohama, Kanagawa 222-8567, Japan
| | - Ikuya Ohno
- Agricultural and Veterinary Research Laboratories, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd. , Yokohama, Kanagawa 222-8567, Japan
| | - Shigeki Kitsuda
- Agricultural and Veterinary Research Laboratories, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd. , Yokohama, Kanagawa 222-8567, Japan
| | - Kathleen A Durkin
- College of Chemistry, University of California , Berkeley, California 94720-1460, United States
| | - Tomonori Suzuki
- Faculty of Life Sciences, Tokyo University of Agriculture , Setagaya, Tokyo 156-8502, Japan
| | - Chiaki Asahara
- Faculty of Life Sciences, Tokyo University of Agriculture , Setagaya, Tokyo 156-8502, Japan
| | - Natsuko Hiroki
- Faculty of Life Sciences, Tokyo University of Agriculture , Setagaya, Tokyo 156-8502, Japan
| | - Rena Komabashiri
- Faculty of Life Sciences, Tokyo University of Agriculture , Setagaya, Tokyo 156-8502, Japan
| | - Rikako Shimizu
- Faculty of Life Sciences, Tokyo University of Agriculture , Setagaya, Tokyo 156-8502, Japan
| | - Shogo Furutani
- Faculty of Agriculture, Kindai University , Nara 631-8505, Japan
| | - Makoto Ihara
- Faculty of Agriculture, Kindai University , Nara 631-8505, Japan
| | - Kazuhiko Matsuda
- Faculty of Agriculture, Kindai University , Nara 631-8505, Japan
| | - Masaaki Mitomi
- Agricultural and Veterinary Research Laboratories, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd. , Yokohama, Kanagawa 222-8567, Japan
| | - Shinzo Kagabu
- Faculty of Education, Gifu University , Gifu 501-1193, Japan
| | - Katsuhito Uomoto
- Agricultural and Veterinary Research Laboratories, Agricultural and Veterinary Division, Meiji Seika Pharma Co., Ltd. , Yokohama, Kanagawa 222-8567, Japan
| | - Motohiro Tomizawa
- Faculty of Life Sciences, Tokyo University of Agriculture , Setagaya, Tokyo 156-8502, Japan
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23
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Prosser RS, de Solla SR, Holman EAM, Osborne R, Robinson SA, Bartlett AJ, Maisonneuve FJ, Gillis PL. Sensitivity of the early-life stages of freshwater mollusks to neonicotinoid and butenolide insecticides. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 218:428-435. [PMID: 27450416 DOI: 10.1016/j.envpol.2016.07.022] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 07/06/2016] [Accepted: 07/09/2016] [Indexed: 05/03/2023]
Abstract
Neonicotinoid insecticides can be transported from agricultural fields, where they are used as foliar sprays or seed treatments, to surface waters by surface or sub-surface runoff. Few studies have investigated the toxicity of neonicotinoid or the related butenolide insecticides to freshwater mollusk species. The current study examined the effect of neonicotinoid and butenolide exposures to the early-life stages of the ramshorn snail, Planorbella pilsbryi, and the wavy-rayed lampmussel, Lampsilis fasciola. Juvenile P. pilsbryi were exposed to imidacloprid, clothianidin, or thiamethoxam for 7 or 28 d and mortality, growth, and biomass production were measured. The viability of larval (glochidia) L. fasciola was monitored during a 48 h exposure to six neonicotinoids (imidacloprid, thiamethoxam, clothianidin, acetamiprid, thiacloprid, or dinotefuran), or a butenolide (flupyradifurone). The 7-d LC50s of P. pilsbryi for imidacloprid, clothianidin, and thiamethoxam were ≥4000 μg/L and the 28-d LC50s were ≥182 μg/L. Growth and biomass production were considerably more sensitive endpoints than mortality with EC50s ranging from 33.2 to 122.0 μg/L. The 48-h LC50s for the viability of glochidia were ≥456 μg/L for all seven insecticides tested. Our data indicate that neonicotinoid and butenolide insecticides pose less of a hazard with respect to mortality of the two species of mollusk compared to the potential hazard to other non-target aquatic insects.
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Affiliation(s)
- R S Prosser
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Burlington, Ontario, Canada.
| | - S R de Solla
- Environment and Climate Change Canada, Ecotoxicology and Wildlife Health Division, Burlington, Ontario, Canada
| | - E A M Holman
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Burlington, Ontario, Canada
| | - R Osborne
- University of Waterloo, Department of Biology, Waterloo, Ontario, Canada
| | - S A Robinson
- Environment and Climate Change Canada, Ecotoxicology and Wildlife Health Division, Ottawa, Ontario, Canada
| | - A J Bartlett
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Burlington, Ontario, Canada
| | - F J Maisonneuve
- Environment and Climate Change Canada, Ecotoxicology and Wildlife Health Division, Ottawa, Ontario, Canada
| | - P L Gillis
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Burlington, Ontario, Canada
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24
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Kayser H, Lehmann K, Gomes M, Schleicher W, Dotzauer K, Moron M, Maienfisch P. Binding of imidacloprid, thiamethoxam and N-desmethylthiamethoxam to nicotinic receptors of Myzus persicae: pharmacological profiling using neonicotinoids, natural agonists and antagonists. PEST MANAGEMENT SCIENCE 2016; 72:2166-2175. [PMID: 26842010 DOI: 10.1002/ps.4249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 01/16/2016] [Accepted: 01/30/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND The increasing structural diversity of the neonicotinoid class of insecticides presently used in crop protection calls for a more detailed analysis of their mode of action at their cellular targets, the nicotinic acetylcholine receptors. RESULTS Comparative radioligand binding studies using membranes of Myzus persicae (Sulzer) and representatives of the chloropyridyl subclass (imidacloprid), the chlorothiazolyl subclass (thiamethoxam), the tetrahydrofuranyl subclass (dinotefuran), as well as the novel sulfoximine type (sulfoxaflor), which is not a neonicotinoid, reveal significant differences in the number of binding sites, the displacing potencies and the mode of binding interference. Furthermore, the mode of interaction of [3 H]thiamethoxam and the nicotinic antagonists methyllycaconitine and dihydro-β-erythroidine is unique, with Hill values of >1, clearly different to the values of around unity for [3 H]imidacloprid and [3 H]N-desmethylthiamethoxam. The interaction of [3 H]N-desmethylthiamethoxam with the agonist (-)nicotine is also characterised by a Hill value of >1. CONCLUSIONS There is no single conserved site or mode of binding of neonicotinoids and related nicotinic ligands to their target receptor, but a variety of binding pockets depending on the combination of receptor subunits, the receptor subtype, its functional state, as well as the structural flexibility of both the binding pockets and the ligands. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Hartmut Kayser
- Institute of General Zoology and Endocrinology, Ulm University, Ulm, Germany.
| | - Katrin Lehmann
- Institute of General Zoology and Endocrinology, Ulm University, Ulm, Germany
| | | | - Wolfgang Schleicher
- Institute of General Zoology and Endocrinology, Ulm University, Ulm, Germany
| | - Karin Dotzauer
- Institute of General Zoology and Endocrinology, Ulm University, Ulm, Germany
| | - Margarethe Moron
- Institute of General Zoology and Endocrinology, Ulm University, Ulm, Germany
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25
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Casida JE, Durkin KA. Pesticide Chemical Research in Toxicology: Lessons from Nature. Chem Res Toxicol 2016; 30:94-104. [DOI: 10.1021/acs.chemrestox.6b00303] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- John E. Casida
- Environmental Chemistry and Toxicology Laboratory, Department of
Environmental Science, Policy, and Management, University of California, Berkeley 94720, United States
| | - Kathleen A. Durkin
- Molecular Graphics and Computational Facility, College of Chemistry, University of California, Berkeley 94720, United States
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26
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Wang NX, Watson GB, Loso MR, Sparks TC. Molecular modeling of sulfoxaflor and neonicotinoid binding in insect nicotinic acetylcholine receptors: impact of the Myzus β1 R81T mutation. PEST MANAGEMENT SCIENCE 2016; 72:1467-1474. [PMID: 26732903 DOI: 10.1002/ps.4220] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 12/16/2015] [Accepted: 12/20/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Sulfoxaflor (Isoclast™ active), a new sulfoximine-class insecticide, targets sap-feeding insect pests, including those resistant to neonicotinoids. Sulfoxaflor acts on the insect nicotinic acetylcholine receptor (nAChR) in a distinct manner relative to neonicotinoids. Unlike any of the neonicotinoids, sulfoxaflor has four stereoisomers. A homology model of Myzus persicae (green peach aphid) based on the ACh binding protein from Aplysia californica, overlaid with M. persicae nAChR sequence (α2 and β1 subunits) was used to investigate the interactions of the sulfoxaflor stereoisomers with WT and R81T versions of the nAChR. RESULTS Whole-molecule van der Waals interactions are highly correlated with the binding affinity for the neonicotinoids and correctly predict the rank order of binding affinity for neonicotinoids and sulfoxaflor. The R81T mutation in M. persicae nAChR is predicted to have much less effect on binding of sulfoxaflor's stereoisomers than that of the neonicotinoids. CONCLUSION All four stereoisomers predictably contribute to the activity of sulfoxaflor. The WT and R81T nAChR homology models suggest that changes in a whole-molecule electrostatic energy component can potentially explain the effects of this target-site mutation on the pattern of reduced efficacy for the modeled neonicotinoids, and provide a basis for the reduced effect of this mutation on sulfoxaflor. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Nick X Wang
- Dow AgroSciences, Discovery Research, Indianapolis, IN, USA
| | | | - Michael R Loso
- Dow AgroSciences, Discovery Research, Indianapolis, IN, USA
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27
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LaLone CA, Villeneuve DL, Lyons D, Helgen HW, Robinson SL, Swintek JA, Saari TW, Ankley GT. Editor’s Highlight: Sequence Alignment to Predict Across Species Susceptibility (SeqAPASS): A Web-Based Tool for Addressing the Challenges of Cross-Species Extrapolation of Chemical Toxicity. Toxicol Sci 2016; 153:228-45. [DOI: 10.1093/toxsci/kfw119] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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28
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Peng W, Ding F, Peng YK. In vitro evaluation of the conjugations of neonicotinoids with transport protein: photochemistry, ligand docking and molecular dynamics studies. RSC Adv 2016. [DOI: 10.1039/c5ra14661e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The flexibility of ligand structures and the property of substituents in neonicotinoids play a pivotal role in protein–neonicotinoid and this type of biorecognition may have a great impact on the potential toxicity of these widely used agrochemicals.
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Affiliation(s)
- Wei Peng
- College of Agriculture and Plant Protection
- Qingdao Agricultural University
- Qingdao 266109
- China
- College of Food Science and Engineering
| | - Fei Ding
- College of Agriculture and Plant Protection
- Qingdao Agricultural University
- Qingdao 266109
- China
- Department of Biological Engineering
| | - Yu-Kui Peng
- Center for Food Quality Supervision & Testing
- Ministry of Agriculture
- College of Food Science & Engineering
- Northwest A&F University
- Yangling 712100
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29
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Alamiddine Z, Selvam B, Cerón-Carrasco JP, Mathé-Allainmat M, Lebreton J, Thany SH, Laurent AD, Graton J, Le Questel JY. Molecular recognition of thiaclopride by Aplysia californica AChBP: new insights from a computational investigation. J Comput Aided Mol Des 2015; 29:1151-67. [PMID: 26589615 DOI: 10.1007/s10822-015-9884-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/16/2015] [Indexed: 11/29/2022]
Abstract
The binding of thiaclopride (THI), a neonicotinoid insecticide, with Aplysia californica acetylcholine binding protein (Ac-AChBP), the surrogate of the extracellular domain of insects nicotinic acetylcholine receptors, has been studied with a QM/QM' hybrid methodology using the ONIOM approach (M06-2X/6-311G(d):PM6). The contributions of Ac-AChBP key residues for THI binding are accurately quantified from a structural and energetic point of view. The importance of water mediated hydrogen-bond (H-bond) interactions involving two water molecules and Tyr55 and Ser189 residues in the vicinity of the THI nitrile group, is specially highlighted. A larger stabilization energy is obtained with the THI-Ac-AChBP complex compared to imidacloprid (IMI), the forerunner of neonicotinoid insecticides. Pairwise interaction energy calculations rationalize this result with, in particular, a significantly more important contribution of the pivotal aromatic residues Trp147 and Tyr188 with THI through CH···π/CH···O and π-π stacking interactions, respectively. These trends are confirmed through a complementary non-covalent interaction (NCI) analysis of selected THI-Ac-AChBP amino acid pairs.
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Affiliation(s)
- Zakaria Alamiddine
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France
| | - Balaji Selvam
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France.,Roger Adams Laboratory, University of Illinois at Urbana-Champaign, 600 S Mathews Ave, Urbana, IL, 61801, USA
| | - José P Cerón-Carrasco
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France.,Bioinformatics and High Performance Computing Research Group (BIO-HPC), Computer Science Department, Universidad Católica San Antonio de Murcia (UCAM), Campus de los Jerónimos, 30107, Murcia, Spain
| | - Monique Mathé-Allainmat
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France
| | - Jacques Lebreton
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France
| | - Steeve H Thany
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, Université d'Orléans, UPRES EA 1207. Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Adèle D Laurent
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France
| | - Jérôme Graton
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France
| | - Jean-Yves Le Questel
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière, BP 92208, Nantes, 44322, France.
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Beck ME, Gutbrod O, Matthiesen S. Insight into the Binding Mode of Agonists of the Nicotinic Acetylcholine Receptor from Calculated Electron Densities. Chemphyschem 2015; 16:2760-2767. [PMID: 26175091 PMCID: PMC4576818 DOI: 10.1002/cphc.201500341] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Indexed: 01/22/2023]
Abstract
Insect nicotinic acetylcholine receptors (nAChRs) are among the most prominent and most economically important insecticide targets. Thus, an understanding of the modes of binding of respective agonists is important for the design of specific compounds with favorable vertebrate profiles. In the case of nAChRs, the lack of available high-resolution X-ray structures leaves theoretical considerations as the only viable option. Starting from classical homology and docking approaches, binding mode hypotheses are created for five agonists of the nAChR, covering insecticides in the main group 4 of the Insecticide Resistance Action Committee (IRAC) mode of action (MoA) classification, namely, neonicotinoids, nicotine, sulfoxaflor, and butenolides. To better understand these binding modes, the topologies of calculated electron densities of small-model systems are analyzed in the framework of the quantum theory of atoms in molecules. The theoretically obtained modes of binding are very much in line with the biology-driven IRAC MoA classification of the investigated ligands.
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Affiliation(s)
- Michael E Beck
- Head of Computational Science, Bayer CropScience AG, R&D-SMR-RT-Computational Science, Alfred-Nobel-Strasse 5040789 Monheim am Rhein (Germany)
| | - Oliver Gutbrod
- Molecular Modelling, Bayer CropScience AG, R&D-SMR-RT-Computational Science, Alfred-Nobel-Strasse 5040789 Monheim am Rhein (Germany)
| | - Svend Matthiesen
- Molecular Modelling, Bayer CropScience AG, R&D-SMR-RT-Computational Science, Alfred-Nobel-Strasse 5040789 Monheim am Rhein (Germany)
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Chang X, Yuan Y, Zhang T, Wang D, Du X, Wu X, Chen H, Chen Y, Jiao Y, Teng H. The Toxicity and Detoxifying Mechanism of Cycloxaprid and Buprofezin in Controlling Sogatella furcifera (Homoptera: Delphacidae). JOURNAL OF INSECT SCIENCE (ONLINE) 2015; 15:iev077. [PMID: 26175461 PMCID: PMC4677492 DOI: 10.1093/jisesa/iev077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/21/2015] [Indexed: 06/04/2023]
Abstract
The effects of cycloxaprid (a modified neonicotinoid insecticide) and buprofezin (a thiadiazine insecticide) on mortality of the white-backed planthopper (WBPH), Sogatella furcifera, were determined in laboratory assays. Cycloxaprid killed WBPH nymphs and adults but buprofezin killed only nymphs, and cycloxaprid acted faster than buprofezin. One day after infestation, mortality of third-instar nymphs was >65% with cycloxaprid at 125 mg liter(-1) but was <38% with buprofezin at 148 mg liter(-1). By the 4th day after infestation, however, control of nymphs by the two insecticides was similar, and cycloxaprid at 125 mg liter(-1) caused ≥ 80% mortality of adults but buprofezin at 148 mg liter(-1) (the highest rate tested) caused almost no adult mortality. LC50 values for cycloxaprid were lowest with nymphs, intermediate with adult males, and highest with adult females. Although buprofezin was slower acting than cycloxaprid, its LC50 for nymphs 5 d after infestation was 3.79-fold lower than that of cycloxaprid. Mean carboxylesterase (CarE) specific activity of nymphal WBPH treated with cycloxaprid and buprofezin was higher than that of control, but there was no significant difference between cycloxaprid and control (no insecticide), and it was significantly higher for buprofezin than those of cycloxaprid and control. For glutathione S-transferase and mixed function oxygenase, the specific activity of nymphal WBPH treated with buprofezin was significantly higher than those of cycloxaprid and control, too.
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Affiliation(s)
- Xiaoli Chang
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Yongda Yuan
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Tianshu Zhang
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Dongsheng Wang
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Xingbin Du
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Xiangwen Wu
- Department of Plant Protection, Shanghai Agricultural Technology Extension and Service Center, Shanghai, 201103, China
| | - Haixia Chen
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Yaozhong Chen
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Yuetong Jiao
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Haiyuan Teng
- Institute of Ecological and Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
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Selvam B, Graton J, Laurent AD, Alamiddine Z, Mathé-Allainmat M, Lebreton J, Coqueret O, Olivier C, Thany SH, Le Questel JY. Imidacloprid and thiacloprid neonicotinoids bind more favourably to cockroach than to honeybee α6 nicotinic acetylcholine receptor: Insights from computational studies. J Mol Graph Model 2015; 55:1-12. [DOI: 10.1016/j.jmgm.2014.10.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/30/2014] [Accepted: 10/31/2014] [Indexed: 11/26/2022]
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Simon-Delso N, Amaral-Rogers V, Belzunces LP, Bonmatin JM, Chagnon M, Downs C, Furlan L, Gibbons DW, Giorio C, Girolami V, Goulson D, Kreutzweiser DP, Krupke CH, Liess M, Long E, McField M, Mineau P, Mitchell EAD, Morrissey CA, Noome DA, Pisa L, Settele J, Stark JD, Tapparo A, Van Dyck H, Van Praagh J, Van der Sluijs JP, Whitehorn PR, Wiemers M. Systemic insecticides (neonicotinoids and fipronil): trends, uses, mode of action and metabolites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:5-34. [PMID: 25233913 PMCID: PMC4284386 DOI: 10.1007/s11356-014-3470-y] [Citation(s) in RCA: 954] [Impact Index Per Article: 106.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 08/15/2014] [Indexed: 04/15/2023]
Abstract
Since their discovery in the late 1980s, neonicotinoid pesticides have become the most widely used class of insecticides worldwide, with large-scale applications ranging from plant protection (crops, vegetables, fruits), veterinary products, and biocides to invertebrate pest control in fish farming. In this review, we address the phenyl-pyrazole fipronil together with neonicotinoids because of similarities in their toxicity, physicochemical profiles, and presence in the environment. Neonicotinoids and fipronil currently account for approximately one third of the world insecticide market; the annual world production of the archetype neonicotinoid, imidacloprid, was estimated to be ca. 20,000 tonnes active substance in 2010. There were several reasons for the initial success of neonicotinoids and fipronil: (1) there was no known pesticide resistance in target pests, mainly because of their recent development, (2) their physicochemical properties included many advantages over previous generations of insecticides (i.e., organophosphates, carbamates, pyrethroids, etc.), and (3) they shared an assumed reduced operator and consumer risk. Due to their systemic nature, they are taken up by the roots or leaves and translocated to all parts of the plant, which, in turn, makes them effectively toxic to herbivorous insects. The toxicity persists for a variable period of time-depending on the plant, its growth stage, and the amount of pesticide applied. A wide variety of applications are available, including the most common prophylactic non-Good Agricultural Practices (GAP) application by seed coating. As a result of their extensive use and physicochemical properties, these substances can be found in all environmental compartments including soil, water, and air. Neonicotinoids and fipronil operate by disrupting neural transmission in the central nervous system of invertebrates. Neonicotinoids mimic the action of neurotransmitters, while fipronil inhibits neuronal receptors. In doing so, they continuously stimulate neurons leading ultimately to death of target invertebrates. Like virtually all insecticides, they can also have lethal and sublethal impacts on non-target organisms, including insect predators and vertebrates. Furthermore, a range of synergistic effects with other stressors have been documented. Here, we review extensively their metabolic pathways, showing how they form both compound-specific and common metabolites which can themselves be toxic. These may result in prolonged toxicity. Considering their wide commercial expansion, mode of action, the systemic properties in plants, persistence and environmental fate, coupled with limited information about the toxicity profiles of these compounds and their metabolites, neonicotinoids and fipronil may entail significant risks to the environment. A global evaluation of the potential collateral effects of their use is therefore timely. The present paper and subsequent chapters in this review of the global literature explore these risks and show a growing body of evidence that persistent, low concentrations of these insecticides pose serious risks of undesirable environmental impacts.
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Affiliation(s)
- N Simon-Delso
- Environmental Sciences, Copernicus Institute, Utrecht University, Heidelberglaan 2, 3584 CS, Utrecht, The Netherlands,
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Pisa LW, Amaral-Rogers V, Belzunces LP, Bonmatin JM, Downs CA, Goulson D, Kreutzweiser DP, Krupke C, Liess M, McField M, Morrissey CA, Noome DA, Settele J, Simon-Delso N, Stark JD, Van der Sluijs JP, Van Dyck H, Wiemers M. Effects of neonicotinoids and fipronil on non-target invertebrates. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:68-102. [PMID: 25223353 PMCID: PMC4284392 DOI: 10.1007/s11356-014-3471-x] [Citation(s) in RCA: 495] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 08/15/2014] [Indexed: 05/17/2023]
Abstract
We assessed the state of knowledge regarding the effects of large-scale pollution with neonicotinoid insecticides and fipronil on non-target invertebrate species of terrestrial, freshwater and marine environments. A large section of the assessment is dedicated to the state of knowledge on sublethal effects on honeybees (Apis mellifera) because this important pollinator is the most studied non-target invertebrate species. Lepidoptera (butterflies and moths), Lumbricidae (earthworms), Apoidae sensu lato (bumblebees, solitary bees) and the section "other invertebrates" review available studies on the other terrestrial species. The sections on freshwater and marine species are rather short as little is known so far about the impact of neonicotinoid insecticides and fipronil on the diverse invertebrate fauna of these widely exposed habitats. For terrestrial and aquatic invertebrate species, the known effects of neonicotinoid pesticides and fipronil are described ranging from organismal toxicology and behavioural effects to population-level effects. For earthworms, freshwater and marine species, the relation of findings to regulatory risk assessment is described. Neonicotinoid insecticides exhibit very high toxicity to a wide range of invertebrates, particularly insects, and field-realistic exposure is likely to result in both lethal and a broad range of important sublethal impacts. There is a major knowledge gap regarding impacts on the grand majority of invertebrates, many of which perform essential roles enabling healthy ecosystem functioning. The data on the few non-target species on which field tests have been performed are limited by major flaws in the outdated test protocols. Despite large knowledge gaps and uncertainties, enough knowledge exists to conclude that existing levels of pollution with neonicotinoids and fipronil resulting from presently authorized uses frequently exceed the lowest observed adverse effect concentrations and are thus likely to have large-scale and wide ranging negative biological and ecological impacts on a wide range of non-target invertebrates in terrestrial, aquatic, marine and benthic habitats.
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Affiliation(s)
- L W Pisa
- Environmental Sciences, Copernicus Institute, Utrecht University, Heidelberglaan 2, 3584 CS, Utrecht, The Netherlands,
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Bridged heterocyclic neonicotinoid analogues: design, synthesis, and insecticidal activity. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1631-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lu S, Zhuang Y, Wu N, Feng Y, Cheng J, Li Z, Chen J, Yuan J, Xu X. Synthesis and biological evaluation of nitromethylene neonicotinoids based on the enhanced conjugation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10858-10863. [PMID: 24180522 DOI: 10.1021/jf403272h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The neonicotinoids with a nitroconjugated system had excellent bioactivity, which could rival imidacloprid, and has been previously reported. However, the photodegradation and hydrolysis of this series of neonicotinoids was very quick according to our further investigation, which cannot be developed as a pesticide further. The approach to further enhance the conjugation was tried not only to increase the bioactivities but also to improve the stability in water and in the sun. A substituted phenyl group was introduced into the furan ring of compound 3. A total of 13 novel neonicotinoid analogues with a higher conjugation system were designed and synthesized. The target molecular structures have been confirmed on the basis of satisfactory analytical and spectral data. All compounds presented significant insecticidal activities on cowpea aphid ( Aphis craccivora ), cotton aphid ( Aphis gossypii ), and brown planthopper ( Nilaparvata lugens ). The stability test exhibited that the stability of novel analogues in water and under the mercury lamp has been improved significantly in comparison to compound 3.
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Affiliation(s)
- Siyuan Lu
- Shanghai Key Laboratory of Chemistry Biology, Institute of Pesticides and Pharmaceuticals, East China University of Science and Technology , Shanghai 200237, People's Republic of China
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Insect nicotinic receptor interactions in vivo with neonicotinoid, organophosphorus, and methylcarbamate insecticides and a synergist. Proc Natl Acad Sci U S A 2013; 110:17273-7. [PMID: 24108354 DOI: 10.1073/pnas.1316369110] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The nicotinic acetylcholine (ACh) receptor (nAChR) is the principal insecticide target. Nearly half of the insecticides by number and world market value are neonicotinoids acting as nAChR agonists or organophosphorus (OP) and methylcarbamate (MC) acetylcholinesterase (AChE) inhibitors. There was no previous evidence for in vivo interactions of the nAChR agonists and AChE inhibitors. The nitromethyleneimidazole (NMI) analog of imidacloprid, a highly potent neonicotinoid, was used here as a radioligand, uniquely allowing for direct measurements of house fly (Musca domestica) head nAChR in vivo interactions with various nicotinic agents. Nine neonicotinoids inhibited house fly brain nAChR [(3)H]NMI binding in vivo, corresponding to their in vitro potency and the poisoning signs or toxicity they produced in intrathoracically treated house flies. Interestingly, nine topically applied OP or MC insecticides or analogs also gave similar results relative to in vivo nAChR binding inhibition and toxicity, but now also correlating with in vivo brain AChE inhibition, indicating that ACh is the ultimate OP- or MC-induced nAChR active agent. These findings on [(3)H]NMI binding in house fly brain membranes validate the nAChR in vivo target for the neonicotinoids, OPs and MCs. As an exception, the remarkably potent OP neonicotinoid synergist, O-propyl O-(2-propynyl) phenylphosphonate, inhibited nAChR in vivo without the corresponding AChE inhibition, possibly via a reactive ketene metabolite reacting with a critical nucleophile in the cytochrome P450 active site and the nAChR NMI binding site.
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38
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Basic and modern concepts on cholinergic receptor: A review. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2013. [DOI: 10.1016/s2222-1808(13)60094-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Jeschke P, Nauen R, Beck ME. Nicotinic acetylcholine receptor agonists: a milestone for modern crop protection. Angew Chem Int Ed Engl 2013; 52:9464-85. [PMID: 23934864 DOI: 10.1002/anie.201302550] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Indexed: 11/08/2022]
Abstract
The destruction of crops by invertebrate pests is a major threat against a background of a continuously rising demand in food supply for a growing world population. Therefore, efficient crop protection measures in a vast range of agricultural settings are of utmost importance to guarantee sustainable yields. The discovery of synthetic agonists selectively addressing the nicotinic acetylcholine receptors (nAChRs), located in the central nervous system of insects, for use as insecticides was a major milestone in applied crop protection research. These compounds, as a result of their high target specificity and versatility in application methods, opened a new innovative era in the control of some of the world's most devastating insect pests. These insecticides also contributed massively to extending our knowledge of the biochemistry of insect nicotinic acetylcholine receptors. The global economic success of synthetic nAChR agonists as insecticides renders the nicotinic acetylcholine receptor still one of the most attractive target sites for exploration in insecticide discovery.
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Affiliation(s)
- Peter Jeschke
- Bayer CropScience AG, BCS AG R&D-SMR-PC-PCC C2, Alfred-Nobel-Strasse 50, Building 6510, 40789 Monheim am Rhein, Germany.
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Jeschke P, Nauen R, Beck ME. Nicotinische Acetylcholinrezeptor-Agonisten: ein Meilenstein für den modernen Pflanzenschutz. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302550] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Xu X, Sun CW, Yang DR, Bu HF, Wang J, Xu YH. Synthesis and Insecticidal Activities ofcis-Configuration Nitenpyram Analogues with Benzoyl Hydrazines. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiao Xu
- College of Life and Environment Sciences; Shanghai Normal University; Shanghai; 200234; China
| | - Chuan-wen Sun
- College of Life and Environment Sciences; Shanghai Normal University; Shanghai; 200234; China
| | - Ding-rong Yang
- College of Life and Environment Sciences; Shanghai Normal University; Shanghai; 200234; China
| | - Hong-fei Bu
- College of Life and Environment Sciences; Shanghai Normal University; Shanghai; 200234; China
| | - Jing Wang
- Bioassay Department; Branch of National Pesticide R&D; Hangzhou; 310023; China
| | - Yong-hua Xu
- Bioassay Department; Branch of National Pesticide R&D; Hangzhou; 310023; China
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He Y, Hu D, Lv M, Jin L, Wu J, Zeng S, Yang S, Song B. Synthesis, insecticidal, and antibacterial activities of novel neonicotinoid analogs with dihydropyridine. Chem Cent J 2013; 7:76. [PMID: 23621983 PMCID: PMC3649916 DOI: 10.1186/1752-153x-7-76] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Accepted: 04/01/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Nilaparvata lugens, a major pest in rice-growing areas, is extremely difficult to manage. Neonicotinoids have increasingly been used in crop protection and animal health care against N. lugens. To discover new bioactive molecules and pesticides, we combined the active structure of cyanoacrylates, aromatic aldehydes, and substituted pyridyl (thiazolyl) methyl-2-substituted-methylidene-imidazolidine derivatives for the design and synthesis of a series of novel neonicotinoid analogs with dihydropyridine. RESULTS A series of neonicotinoid analogs with dihydropyridine were synthesized. Their structures were characterized by IR, 1H NMR, 13C NMR, and elemental analysis and their insecticidal and antibacterial activities were assessed. Preliminary biological activity tests showed that all of the title compounds feature insecticidal activities against N. lugens at 500 mg/L. Moreover, some compounds showed promising antibacterial activities against Pseudomonas solanacearum (e.g., Tobacco bacterial wilt and Tomato bacterial wilt) at a dose of 200 mg/L. CONCLUSION A synthetic route to obtain neonicotinoid analogs with dihydropyridine by the reaction of intermediates 2 (pyridyl (thiazolyl) methyl-2-substituted-methyl-ideneimidazolidine) and intermediates 1 (cyanoacrylates) and different aromatic aldehydes in acetonitrile under reflux conditions is presented. The effects of different solvents, bases, and reaction time on the reaction of 3a were investigated. The results of this study suggest that neonicotinoid analogs with dihydropyridine could cause N. lugens death and restrain P. solanacearum growth.
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Affiliation(s)
- Yinju He
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China.
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Casida JE, Durkin KA. Neuroactive insecticides: targets, selectivity, resistance, and secondary effects. ANNUAL REVIEW OF ENTOMOLOGY 2013; 58:99-117. [PMID: 23317040 DOI: 10.1146/annurev-ento-120811-153645] [Citation(s) in RCA: 427] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Neuroactive insecticides are the principal means of protecting crops, people, livestock, and pets from pest insect attack and disease transmission. Currently, the four major nerve targets are acetylcholinesterase for organophosphates and methylcarbamates, the nicotinic acetylcholine receptor for neonicotinoids, the γ-aminobutyric acid receptor/chloride channel for polychlorocyclohexanes and fiproles, and the voltage-gated sodium channel for pyrethroids and dichlorodiphenyltrichloroethane. Species selectivity and acquired resistance are attributable in part to structural differences in binding subsites, receptor subunit interfaces, or transmembrane regions. Additional targets are sites in the sodium channel (indoxacarb and metaflumizone), the glutamate-gated chloride channel (avermectins), the octopamine receptor (amitraz metabolite), and the calcium-activated calcium channel (diamides). Secondary toxic effects in mammals from off-target serine hydrolase inhibition include organophosphate-induced delayed neuropathy and disruption of the cannabinoid system. Possible associations between pesticides and Parkinson's and Alzheimer's diseases are proposed but not established based on epidemiological observations and mechanistic considerations.
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Affiliation(s)
- John E Casida
- Environmental Chemistry and Toxicology Laboratory, Department of Environmental Science, Policy, and Management, University of California, Berkeley, California 94720, USA.
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44
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Synthesis of imidacloprid derivatives with a chiral alkylated imidazolidine ring and evaluation of their insecticidal activity and affinity to the nicotinic acetylcholine receptor. Bioorg Med Chem 2012; 20:6305-12. [DOI: 10.1016/j.bmc.2012.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Revised: 09/02/2012] [Accepted: 09/05/2012] [Indexed: 11/24/2022]
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45
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Lemoine D, Jiang R, Taly A, Chataigneau T, Specht A, Grutter T. Ligand-gated ion channels: new insights into neurological disorders and ligand recognition. Chem Rev 2012; 112:6285-318. [PMID: 22988962 DOI: 10.1021/cr3000829] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Damien Lemoine
- Laboratoire de Biophysicochimie des Récepteurs Canaux, UMR 7199 CNRS, Conception et Application de Molécules Bioactives, Faculté de Pharmacie, Université de Strasbourg , 67400 Illkirch, France
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Li D, Tian Z, Wang G. Synthesis, biological activity and crystal structure of ethyl 6-amino-8-(4-methoxy phenyl)-9-nitro-2,3,4,8-tetrahydropyrido[2,1b][1,3]thiazine-7-carboxylate. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0769-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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47
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Du J, Dong H, Zhou HX. Size matters in activation/inhibition of ligand-gated ion channels. Trends Pharmacol Sci 2012; 33:482-93. [PMID: 22789930 DOI: 10.1016/j.tips.2012.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 06/07/2012] [Accepted: 06/13/2012] [Indexed: 11/18/2022]
Abstract
Cys loop, glutamate, and P2X receptors are ligand-gated ion channels (LGICs) with 5, 4, and 3 protomers, respectively. There is now growing atomic level understanding of their gating mechanisms. Although each family is unique in the architecture of the ligand-binding pocket, the pathway for motions to propagate from ligand-binding domain to transmembrane domain, and the gating motions of the transmembrane domain, there are common features among the LGICs, which are the focus of the present review. In particular, agonists and competitive antagonists apparently induce opposite motions of the binding pocket. A simple way to control the motional direction is ligand size. Agonists, usually small, induce closure of the binding pocket, leading to opening of the channel pore, whereas antagonists, usually large, induce opening of the binding pocket, thereby stabilizing the closed pore. A cross-family comparison of the gating mechanisms of the LGICs, focusing in particular on the role played by ligand size, provides new insight on channel activation/inhibition and design of pharmacological compounds.
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Affiliation(s)
- Juan Du
- Department of Physics and Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306, USA
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Structural determinants of imidacloprid-based nicotinic acetylcholine receptor inhibitors identified using 3D-QSAR, docking and molecular dynamics. J Mol Model 2011; 18:2279-89. [DOI: 10.1007/s00894-011-1293-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Accepted: 10/24/2011] [Indexed: 10/15/2022]
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N-Haloacetylimino neonicotinoids: Potency and molecular recognition at the insect nicotinic receptor. Bioorg Med Chem Lett 2011; 21:3583-6. [DOI: 10.1016/j.bmcl.2011.04.107] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 04/23/2011] [Accepted: 04/25/2011] [Indexed: 11/20/2022]
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Shao X, Lee PW, Liu Z, Xu X, Li Z, Qian X. cis-Configuration: a new tactic/rationale for neonicotinoid molecular design. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:2943-2949. [PMID: 21043520 DOI: 10.1021/jf103499x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Resistance development and limited lepidopteran activities call for the discovery of "super-neonicotinoids" solving these problems. Compounds with the cis-configuration offer an opportunity for further optimization. Fixing the nitro group in the cis-configuration provided a new approach for neonicotinoid molecular design. Introductions of the heterocycle or a bulky group are two synthesis concepts to fix the cis-configuration of the nitro group. The design, synthesis, bioactivity, and preliminary modes of action of five types of cis-neonicotinoids are reviewed. cis- and trans-neonicotinoids have some differences in bioactivities and modes of action. This study focused, especially, on the reaction diversities of nitromethylene analogues of imidacloprid with various aldehydes.
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Affiliation(s)
- Xusheng Shao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
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