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Lira EC, Nascimento AR, Bass C, Omoto C, Cônsoli FL. Transcriptomic investigation of the molecular mechanisms underlying resistance to the neonicotinoid thiamethoxam and the pyrethroid lambda-cyhalothrin in Euschistus heros (Hemiptera: Pentatomidae). PEST MANAGEMENT SCIENCE 2023; 79:5349-5361. [PMID: 37624650 DOI: 10.1002/ps.7745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/18/2023] [Accepted: 08/25/2023] [Indexed: 08/27/2023]
Abstract
BACKGROUND Laboratory-selected resistant strains of Euschistus heros to thiamethoxam (NEO) and lambda-cyhalothrin (PYR) were recently reported in Brazil. However, the mechanisms conferring resistance to these insecticides in E. heros remain unresolved. We utilized comparative transcriptome profiling and single nucleotide polymorphism (SNP) calling of susceptible and resistant strains of E. heros to investigate the molecular mechanism(s) underlying resistance. RESULTS The E. heros transcriptome was assembled, generating 91 673 transcripts with a mean length of 720 bp and N50 of 1795 bp. Comparative gene expression analysis between the susceptible (SUS) and NEO strains identified 215 significantly differentially expressed (DE) transcripts. DE transcripts associated with the xenobiotic metabolism were all up-regulated in the NEO strain. The comparative analysis of the SUS and PYR strains identified 204 DE transcripts, including an esterase (esterase FE4), a glutathione-S-transferase, an ABC transporter (ABCC1) and aquaporins that were up-regulated in the PYR strain. We identified 9588 and 15 043 nonsynonymous SNPs in the PYR and NEO strains. One of the SNPs (D70N) detected in the NEO strain occurs in a subunit (α5) of the nAChRs, the target site of neonicotinoid insecticides. Nevertheless, this residue position in α5 is not conserved among insects. CONCLUSIONS Neonicotinoid and pyrethroid resistance in laboratory-selected E. heros is associated with a potential metabolic resistance mechanism by the overexpression of proteins commonly involved in the three phases of xenobiotic metabolism. Together these findings provide insight into the potential basis of resistance in E. heros and will inform the development and implementation of resistance management strategies against this important pest. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Ewerton C Lira
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (Esalq), University of São Paulo (USP), Piracicaba, São Paulo, Brazil
| | - Antonio Rb Nascimento
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (Esalq), University of São Paulo (USP), Piracicaba, São Paulo, Brazil
| | - Chris Bass
- Science and Engineering Research Support Facility (SERSF), University of Exeter, Cornwall, UK
| | - Celso Omoto
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (Esalq), University of São Paulo (USP), Piracicaba, São Paulo, Brazil
| | - Fernando L Cônsoli
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (Esalq), University of São Paulo (USP), Piracicaba, São Paulo, Brazil
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Beneficial commensal bacteria promote Drosophila growth by down-regulating the expression of peptidoglycan recognition proteins. iScience 2022; 25:104357. [PMID: 35601912 PMCID: PMC9121327 DOI: 10.1016/j.isci.2022.104357] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/24/2021] [Accepted: 04/29/2022] [Indexed: 11/22/2022] Open
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3
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Li YL, Li YX, Wang XP, Kang XL, Guo KQ, Dong DJ, Wang JX, Zhao XF. Identification and Functional Analysis of G Protein-Coupled Receptors in 20-Hydroxyecdysone Signaling From the Helicoverpa armigera Genome. Front Cell Dev Biol 2021; 9:753787. [PMID: 34765604 PMCID: PMC8576438 DOI: 10.3389/fcell.2021.753787] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/30/2021] [Indexed: 11/13/2022] Open
Abstract
G protein-coupled receptors (GPCRs) are the largest family of membrane receptors in animals and humans, which transmit various signals from the extracellular environment into cells. Studies have reported that several GPCRs transmit the same signal; however, the mechanism is unclear. In the present study, we identified all 122 classical GPCRs from the genome of Helicoverpa armigera, a lepidopteran pest species. Twenty-four GPCRs were identified as upregulated at the metamorphic stage by comparing the transcriptomes of the midgut at the metamorphic and feeding stages. Nine of them were confirmed to be upregulated at the metamorphic stage. RNA interference in larvae revealed the prolactin-releasing peptide receptor (PRRPR), smoothened (SMO), adipokinetic hormone receptor (AKHR), and 5-hydroxytryptamine receptor (HTR) are involved in steroid hormone 20-hydroxyecdysone (20E)-promoted pupation. Frizzled 7 (FZD7) is involved in growth, while tachykinin-like peptides receptor 86C (TKR86C) had no effect on growth and pupation. Via these GPCRs, 20E regulated the expression of different genes, respectively, including Pten (encoding phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase), FoxO (encoding forkhead box O), BrZ7 (encoding broad isoform Z7), Kr-h1 (encoding Krüppel homolog 1), Wnt (encoding Wingless/Integrated) and cMyc, with hormone receptor 3 (HHR3) as their common regulating target. PRRPR was identified as a new 20E cell membrane receptor using a binding assay. These data suggested that 20E, via different GPCRs, regulates different gene expression to integrate growth and development.
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Affiliation(s)
- Yan-Li Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Yan-Xue Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Xiao-Pei Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Xin-Le Kang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Ke-Qin Guo
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Du-Juan Dong
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Jin-Xing Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Xiao-Fan Zhao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
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4
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Developmental ethanol exposure causes central nervous system dysfunction and may slow the aging process in a Drosophila model of fetal alcohol spectrum disorder. Alcohol 2021; 94:65-73. [PMID: 33961967 DOI: 10.1016/j.alcohol.2021.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 03/25/2021] [Accepted: 03/31/2021] [Indexed: 11/21/2022]
Abstract
Alcohol is a known teratogen, and developmental exposure to ethanol results in fetal alcohol spectrum disorder (FASD). Children born with FASD can exhibit a range of symptoms including low birth weight, microcephaly, and neurobehavioral problems. Treatment of patients with FASD is estimated to cost 4 billion dollars per year in the United States alone, and 2 million dollars per affected individual's lifetime. We have established Drosophila melanogaster as a model organism for the study of FASD. Here we report that mutations in Dementin (Dmtn), the Drosophila ortholog of the Alzheimer's disease-associated protein TMCC2, convey sensitivity to developmental ethanol exposure, and provide evidence that Dmtn expression is disrupted by ethanol. In addition, we find that flies reared on ethanol exhibit mild climbing defects suggestive of neurodegeneration. Surprisingly, our data also suggest that flies reared on ethanol age more slowly than control animals, and we find that a number of slow-aging mutants are sensitive to developmental ethanol exposure. Finally, we find that flies reared on ethanol showed a persistent upregulation of genes encoding antioxidant enzymes, which may contribute to a reduced rate of central nervous system aging. Thus, in addition to the well-documented negative effects of developmental alcohol exposure on the nervous system, there may be a previously unsuspected neuroprotective effect in adult animals.
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5
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Harrison MC, Niño LMJ, Rodrigues MA, Ryll J, Flatt T, Oettler J, Bornberg-Bauer E. Gene Coexpression Network Reveals Highly Conserved, Well-Regulated Anti-Ageing Mechanisms in Old Ant Queens. Genome Biol Evol 2021; 13:6263858. [PMID: 33944936 PMCID: PMC8214412 DOI: 10.1093/gbe/evab093] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2021] [Indexed: 12/11/2022] Open
Abstract
Evolutionary theories of ageing predict a reduction in selection efficiency with age, a so-called “selection shadow,” due to extrinsic mortality decreasing effective population size with age. Classic symptoms of ageing include a deterioration in transcriptional regulation and protein homeostasis. Understanding how ant queens defy the trade-off between fecundity and lifespan remains a major challenge for the evolutionary theory of ageing. It has often been discussed that the low extrinsic mortality of ant queens, that are generally well protected within the nest by workers and soldiers, should reduce the selection shadow acting on old queens. We tested this by comparing strength of selection acting on genes upregulated in young and old queens of the ant, Cardiocondyla obscurior. In support of a reduced selection shadow, we find old-biased genes to be under strong purifying selection. We also analyzed a gene coexpression network (GCN) with the aim to detect signs of ageing in the form of deteriorating regulation and proteostasis. We find no evidence for ageing. In fact, we detect higher connectivity in old queens indicating increased transcriptional regulation with age. Within the GCN, we discover five highly correlated modules that are upregulated with age. These old-biased modules regulate several antiageing mechanisms such as maintenance of proteostasis, transcriptional regulation, and stress response. We observe stronger purifying selection on central hub genes of these old-biased modules compared with young-biased modules. These results indicate a lack of transcriptional ageing in old C. obscurior queens, possibly facilitated by strong selection at old age and well-regulated antiageing mechanisms.
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Affiliation(s)
- Mark C Harrison
- Institute for Evolution and Biodiversity, University of Münster, Germany
| | | | | | - Judith Ryll
- Institute for Evolution and Biodiversity, University of Münster, Germany
| | - Thomas Flatt
- Department of Biology, University of Fribourg, Switzerland
| | - Jan Oettler
- Institut für Zoologie/Evolutionsbiologie, University of Regensburg, Germany
| | - Erich Bornberg-Bauer
- Department of Biology, University of Fribourg, Switzerland.,Department of Protein Evolution, Max Planck Institute for Developmental Biology, Tübingen, Germany
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6
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Ritschard EA, Fitak RR, Simakov O, Johnsen S. Genomic signatures of G-protein-coupled receptor expansions reveal functional transitions in the evolution of cephalopod signal transduction. Proc Biol Sci 2019; 286:20182929. [PMID: 30963849 PMCID: PMC6408891 DOI: 10.1098/rspb.2018.2929] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 02/04/2019] [Indexed: 01/29/2023] Open
Abstract
Coleoid cephalopods show unique morphological and neural novelties, such as arms with tactile and chemosensory suckers and a large complex nervous system. The evolution of such cephalopod novelties has been attributed at a genomic level to independent gene family expansions, yet the exact association and the evolutionary timing remain unclear. In the octopus genome, one such expansion occurred in the G-protein-coupled receptors (GPCRs) repertoire, a superfamily of proteins that mediate signal transduction. Here, we assessed the evolutionary history of this expansion and its relationship with cephalopod novelties. Using phylogenetic analyses, at least two cephalopod- and two octopus-specific GPCR expansions were identified. Signatures of positive selection were analysed within the four groups, and the locations of these sequences in the Octopus bimaculoides genome were inspected. Additionally, the expression profiles of cephalopod GPCRs across various tissues were extracted from available transcriptomic data. Our results reveal the evolutionary history of cephalopod GPCRs. Unexpanded cephalopod GPCRs shared with other bilaterians were found to be mainly nervous tissue specific. By contrast, duplications that are shared between octopus and the bobtail squid or specific to the octopus' lineage generated copies with divergent expression patterns devoted to tissues outside of the brain. The acquisition of novel expression domains was accompanied by gene order rearrangement through either translocation or duplication and gene loss. Lastly, expansions showed signs of positive selection and some were found to form tandem clusters with shared conserved expression profiles in cephalopod innovations such as the axial nerve cord. Altogether, our results contribute to the understanding of the molecular and evolutionary history of signal transduction and provide insights into the role of this expansion during the emergence of cephalopod novelties and/or adaptations.
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Affiliation(s)
- Elena A. Ritschard
- Department of Molecular Evolution and Development, University of Vienna, Vienna, Austria
- Department of Biology, Duke University, Durham, NC, USA
| | | | - Oleg Simakov
- Department of Molecular Evolution and Development, University of Vienna, Vienna, Austria
| | - Sönke Johnsen
- Department of Biology, Duke University, Durham, NC, USA
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Tang R, Chen X, Dang T, Deng Y, Zou Z, Liu Q, Gong G, Song S, Ma F, Huang L, Wang Z. Lycium barbarum polysaccharides extend the mean lifespan of Drosophila melanogaster. Food Funct 2019; 10:4231-4241. [DOI: 10.1039/c8fo01751d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The fruits of Lycium barbarum are considered medicinal foods with high nutritional value and bioactivity.
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Affiliation(s)
- Rui Tang
- College of Life Sciences
- Northwest University
- Xi'an 710069
- China
| | - Xiaoyi Chen
- College of Life Sciences
- Northwest University
- Xi'an 710069
- China
| | - Tiantian Dang
- College of Life Sciences
- Northwest University
- Xi'an 710069
- China
| | - Yangni Deng
- College of Life Sciences
- Northwest University
- Xi'an 710069
- China
| | - Zihua Zou
- College of Life Sciences
- Northwest University
- Xi'an 710069
- China
| | - Qian Liu
- College of Food Science and Technology
- Northwest University
- Xi'an 710069
- China
| | - Guiping Gong
- College of Food Science and Technology
- Northwest University
- Xi'an 710069
- China
| | - Shuang Song
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian 116034
- PR China
| | - Fangli Ma
- Infinitus (China) Company Ltd
- Jiangmen 529156
- China
| | - Linjuan Huang
- College of Food Science and Technology
- Northwest University
- Xi'an 710069
- China
| | - Zhongfu Wang
- College of Food Science and Technology
- Northwest University
- Xi'an 710069
- China
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8
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Friedrich M, Chahine H, Al-Jageta C, Badreddine H. Massive parallel expansions of Methuselah/Methuselah-like receptors in schizophoran Diptera. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2018; 330:384-389. [PMID: 30058118 DOI: 10.1002/jez.b.22813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/14/2018] [Accepted: 06/11/2018] [Indexed: 01/16/2023]
Abstract
The Methuselah/Methuselah-like (Mth/Mthl) family of G-protein coupled receptors (GPCRs) is represented by 16 homologs in the fruit fly Drosophila melanogaster. Three of them have thus far been functionally characterized and found to play critical roles in cell adhesion, immunity, lifespan, and oxidative stress regulation. Evolutionary studies have shown that the large number of D. melanogaster Mth/Mthl GPCRs arose by at least two rounds of gene duplications. The first produced the "mth superclade" subfamily and was followed by the expansion of the "melanogaster subgroup" cluster within the "mth superclade" of Mth/Mthl GPCRs. The adaptive significance of the Mth/Mthl receptor repertoire expansion in Drosophila remains elusive. Studying the Mth/Mthl gene family content in newly available dipteran genomes, we find that the first expansion of the mthl superclade predates the diversification of schizophoran Diptera approximately 65 million years ago. Unexpectedly, we further find that the subsequent expansion of the melanogaster subgroup cluster was paralleled by independent mth superclade Mth/Mthl GPCR expansions in other schizophoran clades (Muscidae and Tephritidae). Our study thus reveals an even more dynamic diversification of mth superclade GPCRs than previously appreciated and linked to the emergence of schizophoran flies, the most dramatic radiation in the dipteran tree of life.
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Affiliation(s)
- Markus Friedrich
- Department of Biological Sciences, Wayne State University, Detroit, Michigan.,Department of Anatomy and Cell Biology, School of Medicine, Wayne State University, Detroit, Michigan
| | - Hanady Chahine
- Department of Biological Sciences, Wayne State University, Detroit, Michigan
| | - Cristina Al-Jageta
- Department of Biological Sciences, Wayne State University, Detroit, Michigan
| | - Hamzah Badreddine
- Department of Biological Sciences, Wayne State University, Detroit, Michigan
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9
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Moskalev A, Shaposhnikov M, Zemskaya N, Belyi A, Dobrovolskaya E, Patova A, Guvatova Z, Lukyanova E, Snezhkina A, Kudryavtseva A. Transcriptome analysis reveals mechanisms of geroprotective effects of fucoxanthin in Drosophila. BMC Genomics 2018; 19:77. [PMID: 29504896 PMCID: PMC5836829 DOI: 10.1186/s12864-018-4471-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background We have previously showed that the carotenoid fucoxanthin can increase the lifespan in Drosophila melanogaster and Caenorhabditis elegans. However, the molecular mechanisms of the geroprotective effect of fucoxanthin have not been studied so far. Results Here, we studied the effects of fucoxanthin on the Drosophila aging process at the molecular and the whole organism levels. At the organismal level, fucoxanthin increased the median lifespan and had a positive effect on fecundity, fertility, intestinal barrier function, and nighttime sleep. Transcriptome analysis revealed 57 differentially expressed genes involved in 17 KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways. Among the most represented molecular pathways induced by fucoxanthin, a significant portion is related to longevity, including MAPK, mTOR, Wnt, Notch, and Hippo signaling pathways, autophagy, translation, glycolysis, oxidative phosphorylation, apoptosis, immune response, neurogenesis, sleep, and response to DNA damage. Conclusions Life-extending effects of fucoxanthin are associated with differential expression of longevity-associated genes. Electronic supplementary material The online version of this article (10.1186/s12864-018-4471-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alexey Moskalev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia. .,Institute of Biology of Komi Science Center of Ural Branch of Russian Academy of Sciences, Syktyvkar, Russia.
| | - Mikhail Shaposhnikov
- Institute of Biology of Komi Science Center of Ural Branch of Russian Academy of Sciences, Syktyvkar, Russia
| | - Nadezhda Zemskaya
- Institute of Biology of Komi Science Center of Ural Branch of Russian Academy of Sciences, Syktyvkar, Russia
| | - Alexey Belyi
- Institute of Biology of Komi Science Center of Ural Branch of Russian Academy of Sciences, Syktyvkar, Russia
| | - Eugenia Dobrovolskaya
- Institute of Biology of Komi Science Center of Ural Branch of Russian Academy of Sciences, Syktyvkar, Russia
| | - Anna Patova
- Institute of Biology of Komi Science Center of Ural Branch of Russian Academy of Sciences, Syktyvkar, Russia
| | - Zulfiya Guvatova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Elena Lukyanova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Anastasiya Snezhkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Anna Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
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10
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Delanoue R, Meschi E, Agrawal N, Mauri A, Tsatskis Y, McNeill H, Léopold P. Drosophila insulin release is triggered by adipose Stunted ligand to brain Methuselah receptor. Science 2017; 353:1553-1556. [PMID: 27708106 DOI: 10.1126/science.aaf8430] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 08/24/2016] [Indexed: 12/31/2022]
Abstract
Animals adapt their growth rate and body size to available nutrients by a general modulation of insulin-insulin-like growth factor signaling. In Drosophila, dietary amino acids promote the release in the hemolymph of brain insulin-like peptides (Dilps), which in turn activate systemic organ growth. Dilp secretion by insulin-producing cells involves a relay through unknown cytokines produced by fat cells. Here, we identify Methuselah (Mth) as a secretin-incretin receptor subfamily member required in the insulin-producing cells for proper nutrient coupling. We further show, using genetic and ex vivo organ culture experiments, that the Mth ligand Stunted (Sun) is a circulating insulinotropic peptide produced by fat cells. Therefore, Sun and Mth define a new cross-organ circuitry that modulates physiological insulin levels in response to nutrients.
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Affiliation(s)
- Renald Delanoue
- Université Côte d'Azur, CNRS, INSERM, Institute of Biology Valrose (iBV), 06100 Nice, France.
| | - Eleonora Meschi
- Université Côte d'Azur, CNRS, INSERM, Institute of Biology Valrose (iBV), 06100 Nice, France
| | - Neha Agrawal
- Université Côte d'Azur, CNRS, INSERM, Institute of Biology Valrose (iBV), 06100 Nice, France
| | - Alessandra Mauri
- Université Côte d'Azur, CNRS, INSERM, Institute of Biology Valrose (iBV), 06100 Nice, France
| | - Yonit Tsatskis
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5G 1X5, Canada
| | - Helen McNeill
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5G 1X5, Canada
| | - Pierre Léopold
- Université Côte d'Azur, CNRS, INSERM, Institute of Biology Valrose (iBV), 06100 Nice, France.
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11
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Friedrich M, Jones JW. Gene Ages, Nomenclatures, and Functional Diversification of the Methuselah/Methuselah-Like GPCR Family in Drosophila and Tribolium. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2017; 326:453-463. [PMID: 28074535 DOI: 10.1002/jez.b.22721] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 11/14/2016] [Accepted: 12/02/2016] [Indexed: 12/31/2022]
Abstract
Affecting lifespan regulation and oxidative stress resistance, the G-protein coupled receptor (GPCR) gene methuselah (mth) plays important roles in the life history of Drosophila melanogaster. Substantial progress has been made in elucidating the molecular pathways by which mth affects these traits, yet conflicting ideas exist as to how old these genetic interactions are as well as how old the mth gene itself is. Root to these issues is the complex gene family history of the Mth/Mthl GPCR family, which experienced independent expansions in a variety of animal clades, leading to at least six subfamilies in insects. Within insects, drosophilid flies stand out by possessing up to three times more Mth/Mthl receptors due to the expansion of a single subfamily, the mth superclade subfamily, which contains an even younger subfamily introduced here as the melanogaster subgroup subfamily. As a result, most of the 16 Mth/Mthl receptors of D. melanogaster are characterized by n:1 orthology relationships to singleton mth superclade homologs in nondrosophilid species. This challenge is exacerbated by the inconsistent naming of Mth/Mthl orthologs across species. To consolidate this situation, we review established ortholog relationships among insect Mth/Mthl receptors, clarify the gene nomenclatures in two important satellite model species, the fruit fly relative D. virilis and the red flour beetle Tribolium castaneum, and discuss the genetic and functional evolution of the D. melanogaster Mth GPCR.
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Affiliation(s)
- Markus Friedrich
- Department of Biological Sciences, Wayne State University, Detroit, Michigan.,Department of Anatomy and Cell Biology, School of Medicine, Wayne State University, Detroit, Michigan
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12
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Esquivel CJ, Cassone BJ, Piermarini PM. A de novo transcriptome of the Malpighian tubules in non-blood-fed and blood-fed Asian tiger mosquitoes Aedes albopictus: insights into diuresis, detoxification, and blood meal processing. PeerJ 2016; 4:e1784. [PMID: 26989622 PMCID: PMC4793337 DOI: 10.7717/peerj.1784] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/19/2016] [Indexed: 01/17/2023] Open
Abstract
Background. In adult female mosquitoes, the renal (Malpighian) tubules play an important role in the post-prandial diuresis, which removes excess ions and water from the hemolymph of mosquitoes following a blood meal. After the post-prandial diuresis, the roles that Malpighian tubules play in the processing of blood meals are not well described. Methods. We used a combination of next-generation sequencing (paired-end RNA sequencing) and physiological/biochemical assays in adult female Asian tiger mosquitoes (Aedes albopictus) to generate molecular and functional insights into the Malpighian tubules and how they may contribute to blood meal processing (3–24 h after blood ingestion). Results/Discussion. Using RNA sequencing, we sequenced and assembled the first de novo transcriptome of Malpighian tubules from non-blood-fed (NBF) and blood-fed (BF) mosquitoes. We identified a total of 8,232 non-redundant transcripts. The Malpighian tubules of NBF mosquitoes were characterized by the expression of transcripts associated with active transepithelial fluid secretion/diuresis (e.g., ion transporters, water channels, V-type H+-ATPase subunits), xenobiotic detoxification (e.g., cytochrome P450 monoxygenases, glutathione S-transferases, ATP-binding cassette transporters), and purine metabolism (e.g., xanthine dehydrogenase). We also detected the expression of transcripts encoding sodium calcium exchangers, G protein coupled-receptors, and septate junctional proteins not previously described in mosquito Malpighian tubules. Within 24 h after a blood meal, transcripts associated with active transepithelial fluid secretion/diuresis exhibited a general downregulation, whereas those associated with xenobiotic detoxification and purine catabolism exhibited a general upregulation, suggesting a reinvestment of the Malpighian tubules’ molecular resources from diuresis to detoxification. Physiological and biochemical assays were conducted in mosquitoes and isolated Malpighian tubules, respectively, to confirm that the transcriptomic changes were associated with functional consequences. In particular, in vivo diuresis assays demonstrated that adult female mosquitoes have a reduced diuretic capacity within 24 h after a blood meal. Moreover, biochemical assays in isolated Malpighian tubules showed an increase in glutathione S-transferase activity and the accumulation of uric acid (an end product of purine catabolism) within 24 h after a blood meal. Our data provide new insights into the molecular physiology of Malpighian tubules in culicine mosquitoes and reveal potentially important molecular targets for the development of chemical and/or gene-silencing insecticides that would disrupt renal function in mosquitoes.
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Affiliation(s)
- Carlos J Esquivel
- Department of Entomology, The Ohio State University/Ohio Agricultural Research and Development Center , Wooster, OH , United States
| | - Bryan J Cassone
- Department of Biology, Brandon University , Brandon, Manitoba , Canada
| | - Peter M Piermarini
- Department of Entomology, The Ohio State University/Ohio Agricultural Research and Development Center , Wooster, OH , United States
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Buckley SJ, Fitzgibbon QP, Smith GG, Ventura T. In silico prediction of the G-protein coupled receptors expressed during the metamorphic molt of Sagmariasus verreauxi (Crustacea: Decapoda) by mining transcriptomic data: RNA-seq to repertoire. Gen Comp Endocrinol 2016; 228:111-127. [PMID: 26850661 DOI: 10.1016/j.ygcen.2016.02.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 10/22/2022]
Abstract
Against a backdrop of food insecurity, the farming of decapod crustaceans is a rapidly expanding and globally significant source of food protein. Sagmariasus verreauxi spiny lobster, the subject of this study, are decapods of underdeveloped aquaculture potential. Crustacean neuropeptide G-protein coupled receptors (GPCRs) mediate endocrine pathways that are integral to animal fecundity, growth and survival. The potential use of novel biotechnologies to enhance GPCR-mediated physiology may assist in improving the health and productivity of farmed decapod populations. This study catalogues the GPCRs expressed in the early developmental stages, as well as adult tissues, with a view to illuminating key neuropeptide receptors. De novo assembled contiguous sequences generated from transcriptomic reads of metamorphic and post metamorphic S. verreauxi were filtered for seven transmembrane domains, and used as a reference for iterative re-mapping. Subsequent putative GPCR open reading frames (ORFs) were BLAST annotated, categorised, and compared to published orthologues based on phylogenetic analysis. A total of 85 GPCRs were digitally predicted, that represented each of the four arthropod subfamilies. They generally displayed low-level and non-differential metamorphic expression with few exceptions that we examined using RT-PCR and qPCR. Two putative CHH-like neuropeptide receptors were annotated. Three dimensional structural modelling suggests that these receptors exhibit a conserved extracellular ligand binding pocket, providing support to the notion that these receptors co-evolved with their ligands across Decapoda. This perhaps narrows the search for means to increase productivity of farmed decapod populations.
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Affiliation(s)
- Sean J Buckley
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, 4 Locked Bag, Maroochydore, Queensland 4558, Australia
| | - Quinn P Fitzgibbon
- Fisheries and Aquaculture, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Gregory G Smith
- Fisheries and Aquaculture, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Tomer Ventura
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, 4 Locked Bag, Maroochydore, Queensland 4558, Australia.
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Methuselah/Methuselah-like G protein-coupled receptors constitute an ancient metazoan gene family. Sci Rep 2016; 6:21801. [PMID: 26915348 PMCID: PMC4768249 DOI: 10.1038/srep21801] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 02/01/2016] [Indexed: 01/09/2023] Open
Abstract
Inconsistent conclusions have been drawn regarding the phylogenetic age of the Methuselah/Methuselah-like (Mth/Mthl) gene family of G protein-coupled receptors, the founding member of which regulates development and lifespan in Drosophila. Here we report the results from a targeted homolog search of 39 holozoan genomes and phylogenetic analysis of the conserved seven transmembrane domain. Our findings reveal that the Mth/Mthl gene family is ancient, has experienced numerous extinction and expansion events during metazoan evolution, and acquired the current definition of the Methuselah ectodomain during its exceptional expansion in arthropods. In addition, our findings identify Mthl1, Mthl5, Mthl14, and Mthl15 as the oldest Mth/Mthl gene family paralogs in Drosophila. Future studies of these genes have the potential to define ancestral functions of the Mth/Mthl gene family.
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Gimenez LE, Vishnivetskiy SA, Gurevich VV. Targeting individual GPCRs with redesigned nonvisual arrestins. Handb Exp Pharmacol 2014; 219:153-70. [PMID: 24292829 DOI: 10.1007/978-3-642-41199-1_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Numerous human diseases are caused by excessive signaling of mutant G protein-coupled receptors (GPCRs) or receptors that are overstimulated due to upstream signaling imbalances. The feasibility of functional compensation by arrestins with enhanced ability to quench receptor signaling was recently tested in the visual system. The results showed that even in this extremely demanding situation of rods that have no ability to phosphorylate rhodopsin, enhanced arrestin improved rod morphology, light sensitivity, survival, and accelerated photoresponse recovery. Structurally distinct enhanced mutants of arrestins that bind phosphorylated and non-phosphorylated active GPCRs with much higher affinity than parental wild-type (WT) proteins have been constructed. These "super-arrestins" are likely to have the power to dampen the signaling by hyperactive GPCRs. However, most cells express 5-20 GPCR subtypes, only one of which would be overactive, while nonvisual arrestins are remarkably promiscuous, binding hundreds of different GPCRs. Thus, to be therapeutically useful, enhanced versions of nonvisual arrestins must be made fairly specific for particular receptors. Recent identification of very few arrestin residues as key receptor discriminators paves the way to the construction of receptor subtype-specific nonvisual arrestins.
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Affiliation(s)
- Luis E Gimenez
- Department of Pharmacology, Vanderbilt University, 2200 Pierce Avenue, Nashville, TN, 37232, USA,
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