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Duchatelet L, Coubris C, Pels C, Dupont ST, Mallefet J. Catecholamine Involvement in the Bioluminescence Control of Two Species of Anthozoans. Life (Basel) 2023; 13:1798. [PMID: 37763202 PMCID: PMC10533100 DOI: 10.3390/life13091798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/20/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Bioluminescence, the ability of living organisms to emit visible light, is an important ecological feature for many marine species. To fulfil the ecological role (defence, offence, or communication), bioluminescence needs to be finely controlled. While many benthic anthozoans are luminous, the physiological control of light emission has only been investigated in the sea pansy, Renilla koellikeri. Through pharmacological investigations, a nervous catecholaminergic bioluminescence control was demonstrated for the common sea pen, Pennatula phosphorea, and the tall sea pen, Funiculina quadrangularis. Results highlight the involvement of adrenaline as the main neuroeffector triggering clusters of luminescent flashes. While noradrenaline and octopamine elicit flashes in P. phosphorea, these two biogenic amines do not trigger significant light production in F. quadrangularis. All these neurotransmitters act on both the endodermal photocytes located at the base and crown of autozooids and specific chambers of water-pumping siphonozooids. Combined with previous data on R. koellikeri, our results suggest that a catecholaminergic control mechanisms of bioluminescence may be conserved in Anthozoans.
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Affiliation(s)
- Laurent Duchatelet
- Marine Biology Laboratory, Earth and Life Institute, Université Catholique de Louvain, 1348 Ottignies-Louvain-la-Neuve, Belgium; (C.C.); (C.P.); (J.M.)
| | - Constance Coubris
- Marine Biology Laboratory, Earth and Life Institute, Université Catholique de Louvain, 1348 Ottignies-Louvain-la-Neuve, Belgium; (C.C.); (C.P.); (J.M.)
| | - Christopher Pels
- Marine Biology Laboratory, Earth and Life Institute, Université Catholique de Louvain, 1348 Ottignies-Louvain-la-Neuve, Belgium; (C.C.); (C.P.); (J.M.)
| | - Sam T. Dupont
- Department of Biological & Environmental Sciences, University of Gothenburg, 451 78 Fiskebäckskil, Sweden;
- Marine Environment Laboratories, International Atomic Energy Agency, MC-98000 Monaco, Monaco
| | - Jérôme Mallefet
- Marine Biology Laboratory, Earth and Life Institute, Université Catholique de Louvain, 1348 Ottignies-Louvain-la-Neuve, Belgium; (C.C.); (C.P.); (J.M.)
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Li Z, Niu D, Peng M, Xiong Y, Ji J, Dong Z, Li J. Dopamine beta-hydroxylase and its role in regulating the growth and larval metamorphosis in Sinonovacula constricta. Gene 2020; 737:144418. [PMID: 32006597 DOI: 10.1016/j.gene.2020.144418] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/14/2020] [Accepted: 01/28/2020] [Indexed: 12/15/2022]
Abstract
Dopamine beta-hydroxylase (DβH) plays a key role in the synthesis of catecholamines (CAs) in the neuroendocrine regulatory network. The DβH gene was identified from the razor clam Sinonovacula constricta and referred to as ScDβH. The ScDβH gene is a copper type II ascorbate-dependent monooxygenase with a DOMON domain and two Cu2_monooxygen domains. ScDβH transcript expression was abundant in liver and hemolymph. During early development, ScDβH expression significantly increased at the umbo larval stage. Furthermore, the inhibitors and siRNA of DβH were screened. After challenge with DβH inhibitor, the larval metamorphosis and survival rates, and juvenile growth were obviously decreased. Under the siRNA stress, the larval metamorphosis and survival rates were also significantly decreased. Therefore, ScDβH may play an important regulating role in larval metamorphosis and juvenile growth.
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Affiliation(s)
- Zhi Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Donghong Niu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China.
| | - Maoxiao Peng
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Ya Xiong
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Jie Ji
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Zhiguo Dong
- Co-innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Jiale Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China.
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Catecholaminergic System of Invertebrates: Comparative and Evolutionary Aspects in Comparison With the Octopaminergic System. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 322:363-94. [PMID: 26940523 DOI: 10.1016/bs.ircmb.2015.12.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this review we examined the catecholaminergic system of invertebrates, starting from protists and getting to chordates. Different techniques used by numerous researchers revealed, in most examined phyla, the presence of catecholamines dopamine, noradrenaline, and adrenaline or of the enzymes involved in their synthesis. The catecholamines are generally linked to the nervous system and they can act as neurotransmitters, neuromodulators, and hormones; moreover they play a very important role as regards the response to a large number of stress situations. Nevertheless, in some invertebrate phyla belonging to Protostoma, the monoamine octopamine is the main biogenic amine. The presence of catecholamines in some protists suggests a role as intracellular or interorganismal signaling molecules and an ancient origin of their synthetic pathways. The catecholamines appear also involved in the regulation of bioluminescence and in the control of larval development and metamorphosis in some marine invertebrate phyla.
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Anctil M. Chemical transmission in the sea anemone Nematostella vectensis: A genomic perspective. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2009; 4:268-289. [PMID: 20403752 DOI: 10.1016/j.cbd.2009.07.001] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Revised: 06/30/2009] [Accepted: 07/07/2009] [Indexed: 12/30/2022]
Abstract
The sequencing of the starlet sea anemone (Nematostella vectensis) genome provides opportunities to investigate the function and evolution of genes associated with chemical neurotransmission and hormonal signaling. This is of particular interest because sea anemones are anthozoans, the phylogenetically basal cnidarians least changed from the common ancestors of cnidarians and bilaterian animals, and because cnidarians are considered the most basal metazoans possessing a nervous system. This analysis of the genome has yielded 20 orthologues of enzymes and nicotinic receptors associated with cholinergic function, an even larger number of genes encoding enzymes, receptors and transporters for glutamatergic (28) and GABAergic (34) transmission, and two orthologues of purinergic receptors. Numerous genes encoding enzymes (14), receptors (60) and transporters (5) for aminergic transmission were identified, along with four adenosine-like receptors and one nitric oxide synthase. Diverse neuropeptide and hormone families are also represented, mostly with genes encoding prepropeptides and receptors related to varying closeness to RFamide (17) and tachykinin (14), but also galanin (8), gonadotropin-releasing hormones and vasopressin/oxytocin (5), melanocortins (11), insulin-like peptides (5), glycoprotein hormones (7), and uniquely cnidarian peptide families (44). Surprisingly, no muscarinic acetylcholine receptors were identified and a large number of melatonin-related, but not serotonin, orthologues were found. Phylogenetic tree construction and inspection of multiple sequence alignments reveal how evolutionarily and functionally distant chemical transmitter-related proteins are from those of higher metazoans.
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Affiliation(s)
- Michel Anctil
- Département de sciences biologiques and Centre de recherches en sciences neurologiques, Université de Montréal, Case postale 6128, Succursale Centre-Ville, Montréal, Québec, Canada H3C 3J7.
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Genes encoding putative biogenic amine receptors in the parasitic nematode Brugia malayi. INVERTEBRATE NEUROSCIENCE 2007; 7:227-44. [PMID: 18027007 DOI: 10.1007/s10158-007-0058-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Accepted: 10/09/2007] [Indexed: 12/24/2022]
Abstract
Filarial nematodes, such as Brugia malayi, cause major health problems worldwide. The lack of a vaccine against B. malayi, combined with ineffective chemotherapy against the adult has prompted the examination of biogenic amine receptors (BARs) as possible targets for drug discovery. We employed bioinformatics to identify genes encoding putative B. malayi BARs. Surprisingly, the B. malayi genome contains half of the genes predicted to encode BARs in the genomes of free-living nematodes such as Caenorhabditis elegans or C. briggsae; however, all of the predicted B. malayi receptors have clear orthologues in C. elegans. The B. malayi genes encode each of the major BAR subclasses, including three serotonin, two dopamine and two tyramine/octopamine receptors and the structure of orthologous BAR genes is conserved. We find that potential G-protein coupling and ligand-specificity of individual BARs may be predicted by phylogenetic comparisons. Our results provide a framework for how G-protein coupled receptors may be targeted for drug development in medically important parasitic nematodes.
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Anctil M, Hayward DC, Miller DJ, Ball EE. Sequence and expression of four coral G protein-coupled receptors distinct from all classifiable members of the rhodopsin family. Gene 2007; 392:14-21. [PMID: 17196770 DOI: 10.1016/j.gene.2006.10.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2006] [Revised: 10/23/2006] [Accepted: 10/24/2006] [Indexed: 11/28/2022]
Abstract
A measure of the functional importance of G protein-coupled receptors (GPCRs) as signalling molecules is that over seven hundred have been cloned and identified in the human genome alone. Yet few have been characterized in the lower metazoan phyla, especially in the phylum Cnidaria which is well positioned phylogenetically for tracing the early evolution of GPCRs owing to their possession of the first-evolved nervous systems. We report here the cloning and characterization of four novel rhodopsin-like GPCR cDNAs from the staghorn coral Acropora millepora that share significant similarity with each other but not with the majority of other members of the rhodopsin alpha subfamily. The deduced proteins lack many of the conserved residues and motifs that form the signature of the different groups of alpha rhodopsin receptors. Maximum likelihood phylogenetic analysis likewise implies that the coral receptors do not have a simple or close relationship with any of the major groups within the alpha rhodopsin subfamily. In situ hybridization revealed transcripts in endodermal cells of planula larvae of all ages and in post-settlement polyps. These GPCRs appear to belong to a alpha rhodopsin-like group unique to corals. Comparisons with other cnidarian GPCRs suggest also that GPCRs diverged early in metazoan evolution.
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Affiliation(s)
- Michel Anctil
- Département de Sciences Biologiques, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Québec, Canada H3C 3J7.
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Tarrant AM. Hormonal signaling in cnidarians: do we understand the pathways well enough to know whether they are being disrupted? ECOTOXICOLOGY (LONDON, ENGLAND) 2007; 16:5-13. [PMID: 17235668 DOI: 10.1007/s10646-006-0121-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Cnidarians occupy a key evolutionary position as basal metazoans and are ecologically important as predators, prey and structure-builders. Bioregulatory molecules (e.g., amines, peptides and steroids) have been identified in cnidarians, but cnidarian signaling pathways remain poorly characterized. Cnidarians, especially hydras, are regularly used in toxicity testing, but few studies have used cnidarians in explicit testing for signal disruption. Sublethal endpoints developed in cnidarians include budding, regeneration, gametogenesis, mucus production and larval metamorphosis. Cnidarian genomic databases, microarrays and other molecular tools are increasingly facilitating mechanistic investigation of signaling pathways and signal disruption. Elucidation of cnidarian signaling processes in a comparative context can provide insight into the evolution and diversification of metazoan bioregulation. Characterizing signaling and signal disruption in cnidarians may also provide unique opportunities for evaluating risk to valuable marine resources, such as coral reefs.
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Affiliation(s)
- Ann M Tarrant
- Woods Hole Oceanographic Institution, Mailstop 32, Woods Hole, MA 02543, USA.
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Kass-Simon G, Pierobon P. Cnidarian chemical neurotransmission, an updated overview. Comp Biochem Physiol A Mol Integr Physiol 2006; 146:9-25. [PMID: 17101286 DOI: 10.1016/j.cbpa.2006.09.008] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2006] [Revised: 09/09/2006] [Accepted: 09/10/2006] [Indexed: 11/15/2022]
Abstract
The ultrastructural, histochemical, immunocytochemical, biochemical, molecular, behavioral and physiological evidence for non-peptidergic and peptidergic chemical neurotransmission in the Anthozoa, Hydrozoa, Scyphozoa and Cubozoa is surveyed. With the possible exception of data for the catecholamines and peptides in some animals, the set of cumulative data - the evidence from all methodologies - is incomplete. Taken together, the evidence from all experimental approaches suggests that both classical fast (acetylcholine, glutamate, GABA, glycine) and slow (catecholamines and serotonin) transmitters, as well as neuropeptides, are involved in cnidarian neurotransmission. Ultrastructural evidence for peptidergic, serotonergic, and catecholaminergic synaptic localization is available, but the presence of clear and dense-cored synaptic vesicles also suggests both fast and slow classical transmission. Immunocytochemical studies, in general, reveal a continuous, non-localized distribution of neuropeptides, suggesting a neuromodulatory role for them. Immunocytochemical and biochemical studies indicate the presence of glutamate, GABA, serotonin, catecholamines (and/or their receptors), RFamides, nitric oxide and eicosanoids in cnidarian neurons and tissues. Gene sequences for peptidergic preprohormones have been reported; putative gene homologies to receptor proteins for vertebrate transmitters have been found in Hydra. Behavioral and physiological studies implicate classical transmitters, neuropeptides, eicosanoids and nitric oxide in the coordination of the neuroeffector systems.
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Affiliation(s)
- G Kass-Simon
- Department of Biological Sciences, University of Rhode Island, 100 Flagg Road, Kingston, RI 02881, USA.
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