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Ohta H, Mitsumasu K, Asaoka K. Involvement of a silkworm D2-like dopamine receptor in the promotion of feeding and related behaviors. Behav Brain Res 2024; 456:114696. [PMID: 37793438 DOI: 10.1016/j.bbr.2023.114696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/11/2023] [Accepted: 09/30/2023] [Indexed: 10/06/2023]
Abstract
The biogenic amine dopamine (DA) regulates various physiological and behavioral processes in insects through binding with specific receptors. Three types of typical receptors are known to date. Previously, we achieved functional and pharmacological characterization of the three DA receptors in the silkworm Bombyx mori (BmDopR1-3). BmDopR1 and BmDopR2 are functionally classified as D1-like DA receptors, and BmDopR3 as D2-like. The present pharmacological data and our previous studies suggested that bromocriptine (Bro), which acts as an agonist on the DA D2 receptors and also interacts with various serotonin and adrenergic receptors in vertebrates, is an agonist that also acts specifically on BmDopR3, with little effect on BmDopR1 and BmDopR2 in silkworms. Exploiting this subtype specificity of Bro, to offer clues on the involvement of DA and its receptors in silkworm feeding behavior, Bro was injected into fifth instar larvae and subsequent feeding and related behaviors (feeding amount, excretion amount, mandibular movement, and feeding behavior observation) were quantitatively evaluated. Bro injection increased feeding and excretion amounts but did not affect mandibular chewing speed. Visual observation of feeding behavior for 1 h revealed the prolongation of feeding and related moving time in Bro-injected larvae. Collectively, these results suggest that Bro directly acted on BmDopR3 as an agonist and promoted feeding and related behaviors in silkworm larvae.
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Affiliation(s)
- Hiroto Ohta
- Department of Applied Microbial Engineering, Faculty of Life Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan.
| | - Kanako Mitsumasu
- Department of Nutritional Science, Faculty of Human Life Science, Shokei University, 2-6-78 Kuhonji, Chuo-ku, Kumamoto 862-8678, Japan
| | - Kiyoshi Asaoka
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Owashi 1-2, Tsukuba, Ibaraki 305-8634, Japan
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2
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Schwartz J, Réalis-Doyelle E, Le Franc L, Favrel P. A Novel Dop2/Invertebrate-Type Dopamine Signaling System Potentially Mediates Stress, Female Reproduction, and Early Development in the Pacific Oyster (Crassostrea gigas). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:683-694. [PMID: 34365528 DOI: 10.1007/s10126-021-10052-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
The dopaminergic signaling pathway is involved in many physiological functions in vertebrates, but poorly documented in protostome species except arthropods. We functionally characterized a novel dopamine receptor in the Pacific oyster (Crassostrea gigas), activated by dopamine and tyramine with different efficacy and potency orders. This receptor - Cragi-DOP2R - belongs to the D1-like family of receptors and corresponds to the first representative of the Dop2/invertebrate-type dopamine receptor (Dop2/INDR) group ever identified in Lophotrochozoa. Cragi-DOP2R transcripts were expressed in various adult tissues, with higher expression levels in the visceral ganglia and the gills. Following an experiment under acute osmotic conditions, Cragi-DOP2R transcripts significantly increased in the visceral ganglia and decreased in the gills, suggesting a role of dopamine signaling in the mediation of osmotic stress. Furthermore, a role of the Cragi-DOP2R signaling pathway in female gametogenesis and in early oyster development was strongly suggested by the significantly higher levels of receptor transcripts in mature female gonads and in the early embryonic stages.
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Affiliation(s)
- Julie Schwartz
- UMR BOREA, Normandie Université, UNICAEN, Sorbonne Universités, IRD-207, Esplanade de la Paix, CNRS-806714032, CAEN cedex 5, MNHN, France.
| | - Emilie Réalis-Doyelle
- UMR BOREA, Normandie Université, UNICAEN, Sorbonne Universités, IRD-207, Esplanade de la Paix, CNRS-806714032, CAEN cedex 5, MNHN, France
| | - Lorane Le Franc
- UMR BOREA, Normandie Université, UNICAEN, Sorbonne Universités, IRD-207, Esplanade de la Paix, CNRS-806714032, CAEN cedex 5, MNHN, France
| | - Pascal Favrel
- UMR BOREA, Normandie Université, UNICAEN, Sorbonne Universités, IRD-207, Esplanade de la Paix, CNRS-806714032, CAEN cedex 5, MNHN, France
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3
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Liu T, Zhan X, Yu Y, Wang S, Lu C, Lin G, Zhu X, He W, You M, You S. Molecular and pharmacological characterization of biogenic amine receptors from the diamondback moth, Plutella xylostella. PEST MANAGEMENT SCIENCE 2021; 77:4462-4475. [PMID: 34004073 DOI: 10.1002/ps.6481] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/12/2021] [Accepted: 05/18/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUD Insect biogenic amines play important roles in mediating behavioral and physiological processes. They exert their effects by binding to biogenic amine receptors (BARs), which are specific receptor proteins in the G-protein-coupled receptor superfamily. BAR genes have been cloned and characterized from multiple model insects, including Drosophila melanogaster, Anopheles gambiae, Bombyx mori, Apis mellifera and Tribolium castaneum. However, relatively little work has addressed the molecular properties, expression profiles, and pharmacological characterization of BARs from other insects, including important pests. RESULTS In this study, we cloned 17 genes encoding putative biogenic amine receptor proteins from Plutella xylostella, a global pest of Brassica crops. These PxBAR genes were five octopamine receptors (PxOA1, PxOA2B1, PxOA2B2, PxOA2B3, and PxOA3), three tyramine receptors (PxTAR1A, PxTAR1B, and PxTAR2), four dopamine receptors (PxDOP1, PxDOP2, PxDOP3, and PxDopEcR), and five serotonin receptors (Px5-HT1A , Px5-HT1B , Px5-HT2A , Px5-HT2B , and Px5-HT7 ). All PxBARs showed considerable sequence identity with orthologous BARs, and phylogenetic analysis clustered the receptors within their respective groups while preserving organismal evolutionary relationships. We investigated their molecular properties and expression profiles, and pharmacologically characterized the dopamine receptor, PxDOP2. CONCLUSIONS Our study provides important information and resources on biogenic amine receptors from P. xylostella, which suggests potential target sites for controlling this pest species. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Tiansheng Liu
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Xue Zhan
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Yuan Yu
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Shaozhen Wang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Cong Lu
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Guifang Lin
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Xiangyu Zhu
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Weiyi He
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Minsheng You
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
| | - Shijun You
- State Key Laboratory of Ecological Pest Control for Fujian-Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China
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Jiang T, Chen Y, Tan Z, Li J, Qian P, Tang S, Shen X. Expression analysis and functional identification of several genes related to diapause in Bombyx mori. Dev Growth Differ 2019; 61:150-157. [PMID: 30656649 DOI: 10.1111/dgd.12589] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/16/2018] [Accepted: 11/16/2018] [Indexed: 12/29/2022]
Abstract
Diapause is an important characteristic of insects used to adapt to extreme changes in environmental conditions. Embryonic diapause of the bivoltine silkworm (Bombyx mori) is determined by environmental conditions experienced by the mother while in the embryo stage. If they are incubated at 25°C with natural light, their progenies will be diapause-destined. If they are incubated at 17°C in darkness, their progenies will be non-diapause-destined. The molecular mechanism of diapause remains unknown. In the present study, we analyzed two downregulated genes (BGIBMGA003835, BGIBMGA012335) and two upregulated genes (BGIBMG012996, BGIBMG002426) related to carbohydrate metabolism, verified differentially expressed in ovaries and heads of 1-day-old fifth-instar larvae to 6-day pupae by quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR). In line with published data, the expression level of these genes in larvae were generally lower than in pupae. We further analyzed the expression levels of the four genes in BmN cells that had been treated with various concentrations of diapause hormone (DH). It demonstrated that the expression of these genes was affected by DH. Knockdown of the selected genes in non-diapause-destined female pupae changed the fate of the progeny from non-diapause- to daipause-destined, as seen by the appearance of diapause eggs. Our study provides insight into the molecular mechanism of diapause in B. mori.
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Affiliation(s)
- Tao Jiang
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
| | - Yanhua Chen
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Zhichen Tan
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Jiashuang Li
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Ping Qian
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
| | - Shunming Tang
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
| | - Xingjia Shen
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
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5
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Gassias E, Durand N, Demondion E, Bourgeois T, Aguilar P, Bozzolan F, Debernard S. A critical role for Dop1-mediated dopaminergic signaling in the plasticity of behavioral and neuronal responses to sex pheromone in a moth. J Exp Biol 2019; 222:jeb.211979. [DOI: 10.1242/jeb.211979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/25/2019] [Indexed: 12/22/2022]
Abstract
Most animal species, including insects, are able to modulate their responses to sexual chemosignals and this flexibility originates from the remodeling of olfactory areas under the influence of dopaminergic system. In the moth Agrotis ipsilon, the behavioral response of males to the female-emitted sex pheromone increases throughout adult life and after a prior exposure to pheromone signal and this change is accompanied by an increase in neuronal sensitivity within the primary olfactory centers, the antennal lobes (ALs). To identify the underlying neuromodulatory mechanisms, we examined whether this age- and experience-dependent olfactory plasticity is mediated by dopamine (DA) through the Dop1 receptor, an ortholog of the vertebrate D1-type dopamine receptors, which is positively coupled to adenylyl cyclase. We cloned A. ipsilon Dop1 (AiDop1) which is expressed predominantly in brain and especially in ALs and its knockdown induced decreased AL cAMP amounts and altered sex pheromone-orientated flight. The levels of DA, AiDop1 expression and cAMP in ALs increased from the third day of adult life and at 24h and 48h following pre-exposure to sex pheromone and the dynamic of these changes correlated with the increased responsiveness to sex pheromone. These results demonstrate that Dop1 is required for the display of male sexual behavior and that age- and experience-related neuronal and behavioral changes are sustained by DA-Dop1 signaling that operates within ALs probably through cAMP-dependent mechanisms in A. ipsilon. Thus, this study expands our understanding of the neuromodulatory mechanisms underlying olfactory plasticity, mechanisms that appear to be highly conserved between insects and mammals.
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Affiliation(s)
- Edmundo Gassias
- Institute of Biology, Complutense University of Madrid, Pozuelo de Alarcon, 28223 Madrid, Spain
| | - Nicolas Durand
- FRE CNRS 3498, Ecologie et Dynamique des Systèmes Anthropisés, Université de Picardie, Jules Verne, 80039 Amiens, France
| | - Elodie Demondion
- Sorbonne Université, INRA, CNRS, UPEC, IRD, Univ. P7, Institute of Ecology and Environmental Sciences of Paris, 78026 Versailles, France
| | - Thomas Bourgeois
- Sorbonne Université, INRA, CNRS, UPEC, IRD, Univ. P7, Institute of Ecology and Environmental Sciences of Paris, 78026 Versailles, France
| | - Paleo Aguilar
- Institute of Biology, Complutense University of Madrid, Pozuelo de Alarcon, 28223 Madrid, Spain
| | - Françoise Bozzolan
- Sorbonne Université, INRA, CNRS, UPEC, IRD, Univ. P7, Institute of Ecology and Environmental Sciences of Paris, 75005 Paris, France
| | - Stéphane Debernard
- Sorbonne Université, INRA, CNRS, UPEC, IRD, Univ. P7, Institute of Ecology and Environmental Sciences of Paris, 75005 Paris, France
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6
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Yang X, Huang G, Xu MJ, Zhang C, Cheng Y, Yang Z. Cloning and functional characterization of the DA2 receptor gene in Chinese mitten crab (Eriocheir sinensis). PLoS One 2018; 13:e0193999. [PMID: 29554147 PMCID: PMC5858782 DOI: 10.1371/journal.pone.0193999] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/22/2018] [Indexed: 12/27/2022] Open
Abstract
Dopamine (DA) plays a modulatory role in numerous physiological processes such as light adaptation and food intake, and exerts these functions through DA receptors (DARs). This study presents, for the first time, isolation and characterization of the dopamine receptor 2(DA2 receptor) cDNA from the intestinal tissue of Eriocheir sinensis, an economically important freshwater aquaculture species in China. The DA2 receptor cDNA sequence, which was obtained by rapid amplification of cDNA ends, is 2369bp long, encode peptide of 589 amino acid, and is highly homologous to related sequences in crustaceans. Analysis of the deduced amino acid sequence and the structure of the DA2 indicated that this receptor is a member of the family of G protein-coupled receptors (GPCRs), as it contains seven transmembrane domains and other common signatures of GPCRs. RT-PCR showed that the expression of the DA2 receptor gene was distributed in various tissues, and high expression levels were observed in the cranial ganglia and the thoracic ganglia. Further study of the effect of photoperiod on DA2 expression showed that constant darkness induced a significant increase in DA2 expression in the cranial ganglia. Finally, analysis of DA2 receptor expression under different feeding statuses showed that there was significantly greater expression in the hepatopancreas and intestines after feeding than before feeding, but there were no differences in expression between the before feeding and during feeding periods in either tissue. Our results indicate that the DA2 receptor structurally belongs to the family of G protein-coupled receptors, and that the cranial ganglia are the main tissues in which the DA2 receptor participates in light adaptation during dark hours. In addition, the DA2 receptor in E. sinensis may be involved in the physiological regulation of the hepatopancreas and digestive tract after the ingestion of food. This study provides a foundation for further exploration of the light adaptation and digestive functions of the DA2 receptor in decapods.
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Affiliation(s)
- Xiaozhen Yang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture; Shanghai Ocean University, Shanghai, China
| | - Genyong Huang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture; Shanghai Ocean University, Shanghai, China
| | - Min-jie Xu
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture; Shanghai Ocean University, Shanghai, China
| | - Cong Zhang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture; Shanghai Ocean University, Shanghai, China
| | - Yongxu Cheng
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture; Shanghai Ocean University, Shanghai, China
- * E-mail:
| | - Zhigang Yang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture; Shanghai Ocean University, Shanghai, China
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7
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Two dopamine D2-like receptor genes from the silkworm (Bombyx mori) and their evolutionary history in metazoan. Sci Rep 2017; 7:6848. [PMID: 28754962 PMCID: PMC5533763 DOI: 10.1038/s41598-017-07055-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 06/09/2017] [Indexed: 12/25/2022] Open
Abstract
Dopamine is widely distributed in metazoans and is implicated in many physiological functions. Dopaminergic signaling is mediated through two classes of dopamine receptors, D1-like and D2-like. Phylogeny analysis reveals that, the dopamine receptors probably appeared ahead of the cnidarian divergence, two distinct classes of dopamine receptors likely formed prior to the separation of deuterostomes and protostomes, and INDRs probably split from its ancestor before the emergence of nematodes. Two D2-like genes are closely linked on the same scaffold, and the chromosome region around D2-like gene loci show colinearity among different species within Lepidoptera. These indicate two D2-like and their adjunction genes are likely Lepidoptera-specific orthologs, and occur by gene duplication event taken place after Lepidoptera ancestor split from the common ancestor of Lepidoptera and Diptera. In silkworm, two D2-like genes were expressed in examined tissues, and encoded BmDop2R2 having all the features of D2-like receptors and BmDop2R1 being a truncated variant without the region of N-terminal to TM II. Only dopamine distinctly lowered cAMP levels in BmDop2R2-expressing cells, whereas all tested amines for BmDop2R1 had not markedly effect in pharmacological test. These suggest there is functional difference between the two genes, which are likely resulted from subfunctionalization of gene duplication.
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8
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Xu G, Wu SF, Gu GX, Teng ZW, Ye GY, Huang J. Pharmacological characterization of dopamine receptors in the rice striped stem borer, Chilo suppressalis. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2017; 83:80-93. [PMID: 28302436 DOI: 10.1016/j.ibmb.2017.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/10/2017] [Accepted: 03/12/2017] [Indexed: 06/06/2023]
Abstract
Dopamine is an important neurotransmitter and neuromodulator in both vertebrates and invertebrates and is the most abundant monoamine present in the central nervous system of insects. A complement of functionally distinct dopamine receptors mediate the signal transduction of dopamine by modifying intracellular Ca2+ and cAMP levels. In the present study, we pharmacologically characterized three types of dopamine receptors, CsDOP1, CsDOP2 and CsDOP3, from the rice striped stem borer, Chilo suppressalis. All three receptors show considerable sequence identity with orthologous dopamine receptors. The phylogenetic analysis also clusters the receptors within their respective groups. Transcript levels of CsDOP1, CsDOP2 and CsDOP3 were all expressed at high levels in the central nervous system, indicating their important roles in neural processes. After heterologous expression in HEK 293 cells, CsDOP1, CsDOP2 and CsDOP3 were dose-dependently activated by dopamine and synthetic dopamine receptor agonists. They can also be blocked by different series of antagonists. This study offers important information on three dopamine receptors from C. suppressalis that will provide the basis for forthcoming studies investigating their roles in behaviors and physiology, and facilitate the development of new insecticides for pest control.
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Affiliation(s)
- Gang Xu
- State Key Laboratory of Rice Biology & Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Shun-Fan Wu
- State Key Laboratory of Rice Biology & Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China.
| | - Gui-Xiang Gu
- State Key Laboratory of Rice Biology & Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Zi-Wen Teng
- State Key Laboratory of Rice Biology & Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Gong-Yin Ye
- State Key Laboratory of Rice Biology & Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Jia Huang
- State Key Laboratory of Rice Biology & Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China.
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9
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Wu SF, Xu G, Stanley D, Huang J, Ye GY. Dopamine modulates hemocyte phagocytosis via a D1-like receptor in the rice stem borer, Chilo suppressalis. Sci Rep 2015; 5:12247. [PMID: 26179416 PMCID: PMC4503959 DOI: 10.1038/srep12247] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 06/19/2015] [Indexed: 12/14/2022] Open
Abstract
Dopamine (DA) is a signal moiety bridging the nervous and immune systems. DA dysregulation is linked to serious human diseases, including addiction, schizophrenia, and Parkinson's disease. However, DA actions in the immune system remain incompletely understood. In this study, we found that DA modulates insect hemocyte phagocytosis using hemocytes prepared from the rice stem borer (RSB), Chilo suppressalis. We investigated whether insect hemocytes are capable of de novo DA production. Here we show that exposing hemocytes to lipopolysaccharide (LPS) led to induction of DA-generating enzymes. Exogenous DA induced rapid phosphorylation of extracellular signal-regulated kinase (ERK) in naïve hemocytes. Activation of ERK was inhibited by preincubating with a DOP1 receptor antagonist. Thus, DA signaling via the DOP1 receptor may contribute to early hemocyte activation. DA synthesized and released from hemocytes may act in an autocrine mechanism to stimulate or maintain phagocytic activity. Consistent with this hypothesis, we found that inhibition of DA synthesis with α-methyl-DL-tyrosine methyl ester hydrochloride or blockage of DOP1 receptor with antagonist SCH23390 impaired hemocyte phagocytosis. Topical DA application also significantly decreased RSB mortality following challenge with the insect pathogenic fungus, Beauveria bassiana. We infer that a DA-dependent signaling system operates in hemocytes to mediate phagocytotic functions.
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Affiliation(s)
- Shun-Fan Wu
- 1] State Key Laboratory of Rice Biology &Key Laboratory of Agricultural Entomology of Ministry of Agriculture, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China [2] College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; State &Local Joint Engineering Research Center of Green Pesticide Invention and Application
| | - Gang Xu
- State Key Laboratory of Rice Biology &Key Laboratory of Agricultural Entomology of Ministry of Agriculture, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
| | - David Stanley
- USDA - Agricultural Research Service, BCIRL, 1503 S. Providence Road, Columbia MO 65203 USA
| | - Jia Huang
- State Key Laboratory of Rice Biology &Key Laboratory of Agricultural Entomology of Ministry of Agriculture, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
| | - Gong-Yin Ye
- State Key Laboratory of Rice Biology &Key Laboratory of Agricultural Entomology of Ministry of Agriculture, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
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10
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Tan QQ, Zhu L, Li Y, Liu W, Ma WH, Lei CL, Wang XP. A de novo transcriptome and valid reference genes for quantitative real-time PCR in Colaphellus bowringi. PLoS One 2015; 10:e0118693. [PMID: 25692689 PMCID: PMC4334893 DOI: 10.1371/journal.pone.0118693] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Accepted: 01/15/2015] [Indexed: 11/30/2022] Open
Abstract
Background The cabbage beetle Colaphellus bowringi Baly is a serious insect pest of crucifers and undergoes reproductive diapause in soil. An understanding of the molecular mechanisms of diapause regulation, insecticide resistance, and other physiological processes is helpful for developing new management strategies for this beetle. However, the lack of genomic information and valid reference genes limits knowledge on the molecular bases of these physiological processes in this species. Results Using Illumina sequencing, we obtained more than 57 million sequence reads derived from C. bowringi, which were assembled into 39,390 unique sequences. A Clusters of Orthologous Groups classification was obtained for 9,048 of these sequences, covering 25 categories, and 16,951 were assigned to 255 Kyoto Encyclopedia of Genes and Genomes pathways. Eleven candidate reference gene sequences from the transcriptome were then identified through reverse transcriptase polymerase chain reaction. Among these candidate genes, EF1α, ACT1, and RPL19 proved to be the most stable reference genes for different reverse transcriptase quantitative polymerase chain reaction experiments in C. bowringi. Conversely, aTUB and GAPDH were the least stable reference genes. Conclusion The abundant putative C. bowringi transcript sequences reported enrich the genomic resources of this beetle. Importantly, the larger number of gene sequences and valid reference genes provide a valuable platform for future gene expression studies, especially with regard to exploring the molecular mechanisms of different physiological processes in this species.
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Affiliation(s)
- Qian-Qian Tan
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, P. R. China
| | - Li Zhu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Yi Li
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Wen Liu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Wei-Hua Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, P. R. China
- * E-mail: (WHM); (XPW)
| | - Chao-Liang Lei
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, P. R. China
| | - Xiao-Ping Wang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
- * E-mail: (WHM); (XPW)
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11
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Verlinden H, Vleugels R, Verdonck R, Urlacher E, Vanden Broeck J, Mercer A. Pharmacological and signalling properties of a D2-like dopamine receptor (Dop3) in Tribolium castaneum. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2015; 56:9-20. [PMID: 25449128 DOI: 10.1016/j.ibmb.2014.11.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 11/05/2014] [Accepted: 11/06/2014] [Indexed: 06/04/2023]
Abstract
Dopamine is an important neurotransmitter in the central nervous system of vertebrates and invertebrates. Despite their evolutionary distance, striking parallels exist between deuterostomian and protostomian dopaminergic systems. In both, signalling is achieved via a complement of functionally distinct dopamine receptors. In this study, we investigated the sequence, pharmacology and tissue distribution of a D2-like dopamine receptor from the red flour beetle Tribolium castaneum (TricaDop3) and compared it with related G protein-coupled receptors in other invertebrate species. The TricaDop3 receptor-encoding cDNA shows considerable sequence similarity with members of the Dop3 receptor class. Real time qRT-PCR showed high expression in both the central brain and the optic lobes, consistent with the role of dopamine as neurotransmitter. Activation of TricaDop3 expressed in mammalian cells increased intracellular Ca(2+) signalling and decreased NKH-477 (a forskolin analogue)-stimulated cyclic AMP levels in a dose-dependent manner. We studied the pharmacological profile of the TricaDop3 receptor and demonstrated that the synthetic vertebrate dopamine receptor agonists, 2 - amino- 6,7 - dihydroxy - 1,2,3,4 - tetrahydronaphthalene hydrobromide (6,7-ADTN) and bromocriptine acted as agonists. Methysergide was the most potent of the antagonists tested and showed competitive inhibition in the presence of dopamine. This study offers important information on the Dop3 receptor from Tribolium castaneum that will facilitate functional analyses of dopamine receptors in insects and other invertebrates.
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Affiliation(s)
- Heleen Verlinden
- Department of Animal Physiology and Neurobiology, Zoological Institute, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium; Department of Zoology, University of Otago, 340 Great King Street, Dunedin, New Zealand.
| | - Rut Vleugels
- Department of Animal Physiology and Neurobiology, Zoological Institute, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium
| | - Rik Verdonck
- Department of Animal Physiology and Neurobiology, Zoological Institute, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium
| | - Elodie Urlacher
- Department of Zoology, University of Otago, 340 Great King Street, Dunedin, New Zealand
| | - Jozef Vanden Broeck
- Department of Animal Physiology and Neurobiology, Zoological Institute, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium
| | - Alison Mercer
- Department of Zoology, University of Otago, 340 Great King Street, Dunedin, New Zealand
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12
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Kobayashi N, Takahashi M, Kihara S, Niimi T, Yamashita O, Yaginuma T. Cloning of cDNA encoding a Bombyx mori homolog of human oxidation resistance 1 (OXR1) protein from diapause eggs, and analyses of its expression and function. JOURNAL OF INSECT PHYSIOLOGY 2014; 68:58-68. [PMID: 25010546 DOI: 10.1016/j.jinsphys.2014.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 05/24/2014] [Accepted: 06/19/2014] [Indexed: 06/03/2023]
Abstract
To better understand the molecular mechanisms of diapause initiation, we used the sensitive cDNA subtraction (selective amplification via biotin- and restriction-mediated enrichment) method and isolated a novel gene expressed abundantly in diapause eggs of the silkworm, Bombyx mori, which encodes a homolog of the human oxidation resistance 1 (OXR1) protein. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting analyses confirmed that BmOXR1 mRNA and its 140-kDa protein were differentially expressed in diapause eggs compared to non-diapause eggs. OXR1 double-stranded RNA (dsRNA) was injected into diapause-destined eggs before the cellular blastoderm stage, and 4days later, when untreated eggs reached the diapause stage, the OXR1 protein disappeared; however, these eggs remained in diapause, suggesting that BmOXR1 is not essential for diapause initiation and/or maintenance. To further investigate the in vivo function of BmOXR1 apart from its role in diapause, we overexpressed BmOXR1 in Drosophila melanogaster. The fruit fly male adult life-span was significantly extended in the 50%-survival time when adults were reared on diets both with and without H2O2 solution under 25°C incubation. These results suggest that BmOXR1 functions in D. melanogaster via a possible antioxidant effect. As BmOXR1 was expressed mainly in the nuclei of D. melanogaster cells, the mechanism underlying its antioxidation effect appears to be different from that in humans where it is expressed mainly in the mitochondria. Taken together, these results suggest that BmOXR1 might serve as an antioxidant regulator during the early diapause stage.
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Affiliation(s)
- Noriko Kobayashi
- Laboratory of Sericulture & Entomoresources, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Masaki Takahashi
- Laboratory of Sericulture & Entomoresources, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Shouhei Kihara
- Laboratory of Sericulture & Entomoresources, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Teruyuki Niimi
- Laboratory of Sericulture & Entomoresources, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Okitsugu Yamashita
- Laboratory of Sericulture & Entomoresources, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Toshinobu Yaginuma
- Laboratory of Sericulture & Entomoresources, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan.
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Characterization of an invertebrate-type dopamine receptor of the American cockroach, Periplaneta americana. Int J Mol Sci 2014; 15:629-53. [PMID: 24398985 PMCID: PMC3907829 DOI: 10.3390/ijms15010629] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 12/20/2013] [Accepted: 12/24/2013] [Indexed: 12/22/2022] Open
Abstract
We have isolated a cDNA coding for a putative invertebrate-type dopamine receptor (Peadop2) from P. americana brain by using a PCR-based strategy. The mRNA is present in samples from brain and salivary glands. We analyzed the distribution of the PeaDOP2 receptor protein with specific affinity-purified polyclonal antibodies. On Western blots, PeaDOP2 was detected in protein samples from brain, subesophageal ganglion, thoracic ganglia, and salivary glands. In immunocytochemical experiments, we detected PeaDOP2 in neurons with their somata being located at the anterior edge of the medulla bilaterally innervating the optic lobes and projecting to the ventro-lateral protocerebrum. In order to determine the functional and pharmacological properties of the cloned receptor, we generated a cell line constitutively expressing PeaDOP2. Activation of PeaDOP2-expressing cells with dopamine induced an increase in intracellular cAMP. In contrast, a C-terminally truncated splice variant of this receptor did not exhibit any functional property by itself. The molecular and pharmacological characterization of the first dopamine receptor from P. americana provides the basis for forthcoming studies focusing on the significance of the dopaminergic system in cockroach behavior and physiology.
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Watanabe T, Sadamoto H, Aonuma H. Molecular basis of the dopaminergic system in the cricket Gryllus bimaculatus. INVERTEBRATE NEUROSCIENCE 2013; 13:107-23. [DOI: 10.1007/s10158-013-0153-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 03/06/2013] [Indexed: 02/06/2023]
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15
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Hiruma K, Kaneko Y. Hormonal Regulation of Insect Metamorphosis with Special Reference to Juvenile Hormone Biosynthesis. Curr Top Dev Biol 2013; 103:73-100. [DOI: 10.1016/b978-0-12-385979-2.00003-4] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Moribe Y, Oka K, Niimi T, Yamashita O, Yaginuma T. Expression of heat shock protein 70a mRNA in Bombyx mori diapause eggs. JOURNAL OF INSECT PHYSIOLOGY 2010; 56:1246-1252. [PMID: 20371249 DOI: 10.1016/j.jinsphys.2010.03.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2008] [Revised: 03/22/2010] [Accepted: 03/22/2010] [Indexed: 05/29/2023]
Abstract
In an effort to understand whether heat shock protein 70 (Hsp70) participates in the environmental 5 degrees C signal reception/transduction toward breaking embryonic diapause of the silkworm Bombyx mori, we isolated a cDNA for Hsp70a and examined the expression of Hsp70a mRNA in B. mori diapause and nondiapause eggs by quantitative real-time PCR. Hsp70a mRNA gradually increased in diapause eggs continuously kept at 25 degrees C after oviposition to maintain diapause. When diapause eggs were exposed to the diapause-terminating condition of 5 degrees C beginning at 2 days post-oviposition, Hsp70a mRNA increased beginning at 5 days post-cold treatment. Even in nondiapause eggs, Hsp70a mRNA increased slightly with exposure to 5 degrees C. These results suggest that Hsp70a is involved in reception/transduction of the diapause-terminating (5 degrees C) signal via gene activation. The expression patterns of Hsp70a mRNA are discussed in relation to those of the cold-response gene Samui.
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Affiliation(s)
- Yoriko Moribe
- Sericulture & Entomoresources, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
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Ohta H, Tsuchihara K, Mitsumasu K, Yaginuma T, Ozoe Y, Asaoka K. Comparative pharmacology of two D1-like dopamine receptors cloned from the silkworm Bombyx mori. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2009; 39:342-347. [PMID: 19507304 DOI: 10.1016/j.ibmb.2009.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Dopamine (DA) is a physiologically important biogenic amine in insect peripheral and nervous tissues.We recently cloned two DA receptors (BmDopR1 and BmDopR2) from the silkworm Bombyx mori and identified them as D1-like receptors, which activate adenylate cyclase to increase intracellular cAMP levels. In this study, these two receptors were stably expressed in HEK-293 cells, and the dose-responsiveness to DA and their pharmacological properties were examined using cAMP assays. BmDopR1 showed a dose-dependent increase in cAMP levels at DA concentrations up to 10(-7) M with EC(50) of 3.30 nM, while BmDopR2 required 10(-6) M DA for activation. In BmDopR1-expressing cells, DA at 10(-6)-10(-4) M induced 30-50% lower cAMP production than 10(-7) MDA. BmDopR2-expressing cells showed a standard sigmoidal dose-response, with maximum cAMP levels attained with 10(-5)-10(-4) M DA and EC(50) of 1.30 microM. Both receptors had similar agonist profiles, and the typical vertebrate D1-like receptor agonist SKF-38393 was ineffective. Experiments with antagonists revealed that BmDopR1 exhibits D1-like features. However, the pharmacology of BmDopR2 was distinct from D1-like receptors; the typical vertebrate D1-like receptor antagonist SCH-23390 was less potent than the nonselective antagonist flupenthixol and the D2-like receptor antagonist chlorpromazine. The rank order of activities of several antagonists for BmDopR1 and BmDopR2 was more similar to that of Drosophila melanogaster DA receptors than Apis mellifera DA receptors. These data suggest that DA receptors could be potential targets for specific insecticides or insectistatics.
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Affiliation(s)
- Hiroto Ohta
- National Institute of Agrobiological Sciences, Ohwashi, Tsukuba, Ibaraki, Japan
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