{"refrec":{"BRefID":362439,"RR":"<b>Aleotti, A.; Wilkie, I.C.; Yanez-Guerra, L.A.; Gattoni, G.; Rahman, T.A.; Wademan, R.F.; Ahmad, Z.; Ivanova, D.A.; Semmens, D.C.; Delroisse, J.; Cai, W.; Odekunle, E.; Egertová, M.; Ferrario, C.; Sugni, M.; Bonasoro, F.; Elphick, M.R.</b> (2022). Discovery and functional characterization of neuropeptides in crinoid echinoderms. <i>Frontiers in Neuroscience 16</i>: 1006594. <a href=\"https://dx.doi.org/10.3389/fnins.2022.1006594\" target=\"_blank\">https://dx.doi.org/10.3389/fnins.2022.1006594</a>","BEntID":360156,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Frontiers in Neuroscience 16</i>: 1006594. <a href=\"https://dx.doi.org/10.3389/fnins.2022.1006594\" target=\"_blank\">https://dx.doi.org/10.3389/fnins.2022.1006594</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Aleotti, A.; Wilkie, I.C.; Yanez-Guerra, L.A.; Gattoni, G.; Rahman, T.A.; Wademan, R.F.; Ahmad, Z.; Ivanova, D.A.; Semmens, D.C.; Delroisse, J.; Cai, W.; Odekunle, E.; Egertová, M.; Ferrario, C.; Sugni, M.; Bonasoro, F.; Elphick, M.R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Aleotti, A. <i>et al.</i>","Englishabstract":"Neuropeptides are one of the largest and most diverse families of signaling molecules in animals and, accordingly, they regulate many physiological processes and behaviors. Genome and transcriptome sequencing has enabled the identification of genes encoding neuropeptide precursor proteins in species from a growing variety of taxa, including bilaterian and non-bilaterian animals. Of particular interest are deuterostome invertebrates such as the phylum Echinodermata, which occupies a phylogenetic position that has facilitated reconstruction of the evolution of neuropeptide signaling systems in Bilateria. However, our knowledge of neuropeptide signaling in echinoderms is largely based on bioinformatic and experimental analysis of eleutherozoans—Asterozoa (starfish and brittle stars) and Echinozoa (sea urchins and sea cucumbers). Little is known about neuropeptide signaling in crinoids (feather stars and sea lilies), which are a sister clade to the Eleutherozoa. Therefore, we have analyzed transcriptome/genome sequence data from three feather star species, <i>Anneissia japonica, Antedon mediterranea</i>, and <i>Florometra serratissima</i>, to produce the first comprehensive identification of neuropeptide precursors in crinoids. These include representatives of bilaterian neuropeptide precursor families and several predicted crinoid neuropeptide precursors. Using <i>A. mediterranea</i> as an experimental model, we have investigated the expression of selected neuropeptides in larvae (doliolaria), post-metamorphic pentacrinoids and adults, providing new insights into the cellular architecture of crinoid nervous systems. Thus, using mRNA <i>in situ</i> hybridization F-type SALMFamide precursor transcripts were revealed in a previously undescribed population of peptidergic cells located dorso-laterally in doliolaria. Furthermore, using immunohistochemistry a calcitonin-type neuropeptide was revealed in the aboral nerve center, circumoral nerve ring and oral tube feet in pentacrinoids and in the ectoneural and entoneural compartments of the nervous system in adults. Moreover, functional analysis of a vasopressin/oxytocin-type neuropeptide (crinotocin), which is expressed in the brachial nerve of the arms in <i>A. mediterranea</i>, revealed that this peptide causes a dose-dependent change in the mechanical behavior of arm preparations <i>in vitro</i>—the first reported biological action of a neuropeptide in a crinoid. In conclusion, our findings provide new perspectives on neuropeptide signaling in echinoderms and the foundations for further exploration of neuropeptide expression/function in crinoids as a sister clade to eleutherozoan echinoderms.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Discovery and functional characterization of neuropeptides in crinoid echinoderms","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"neuropeptide; crinoid; echinoderm; SALMFamide; calcitonin; vasopressin; oxytocin; Antedon mediterranea; feather star","OtherDescriptors":null,"Notes":null,"AnaPub":2022,"MonPub":null,"DateUpdate":"2023-03-22","DateCreate":"2023-03-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000902477200001","VABBcode":null,"OpenAcc":1,"DOI":"10.3389/fnins.2022.1006594"},"refs":null,"anarec":{"AnaID":362439,"PubliDate":2022,"Pagination":"1006594","XtraPublOfAnaID":null,"ISBN":null,"Volume":"16","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":268447,"SerRR":"Frontiers in Neuroscience. 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