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Advances in understanding the mitogenic, metabolic, and cell death signaling in teleost development: the case of greater amberjack (Seriola dumerili, Risso 1810)

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Abstract

Cell growth and differentiation signals of insulin-like growth factor-1 (IGF-1), a key regulator in embryonic and postnatal development, are mediated through the IGF-1 receptor (IGF-1R), which activates several downstream pathways. The present study aims to address crucial organogenesis and development pathways including Akt, MAPKs, heat shock response, apoptotic and autophagic machinery, and energy metabolism in relation to IGF-1R activation during five developmental stages of reared Seriola dumerili: 1 day prior to hatching fertilized eggs (D-1), hatching day (D0), 3 days post-hatching larvae (D3), 33 (D33) and 46 (D46) days post-hatching juveniles. During both the fertilized eggs stage and larval-to-juvenile transition, IGF-1R/Akt pathway activation may mediate the hypertrophic signaling, while p44/42 MAPK phosphorylation was apparent at S. dumerili post-hatching processes and juvenile organs completion. On the contrary, apoptosis was induced during embryogenesis and autophagy at hatching day indicating a potential involvement in morphogenetic rearrangements and yolk-sac reserves depletion. Larvae morphogenesis was accompanied by a metabolic turnover with increased substantial energy consumption. The findings of the present study demonstrate the developmental stages-specific shift in critical signaling pathways during the ontogeny of reared S. dumerili.

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Data availability

The datasets generated and/or analyzed during the current study are not publicly available because due to the nature of this research, accompanying data to the ones presented herein remain unpublished to date, but are available from the corresponding author on reasonable request.

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Funding

This research was funded by European Union and Greek national funds through the National Strategic Reference Framework 2014–2020 (GR & EU), Special Actions Aquaculture-Industrial Materials-Open innovation in culture (project code: MIS 5045873), entitled “Improvement of broodstock management and fingerling production methods for greater amberjack (Seriola dumerili)” (acronym: Magiatiko). Funding acquisition by Efthimia Antonopoulou.

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NP: investigation of the study, methodology, data curation, software, formal analysis, visualization, conception and design, writing of the first draft of the manuscript, revision of the final draft of the manuscript. MD: investigation of the study, methodology, data curation, software, formal analysis, visualization, conception and design, writing of the first draft of the manuscript, revision of the final draft of the manuscript. KF: investigation of the study, methodology, data curation, software, formal analysis, visualization, conception and design, writing of the first draft of the manuscript, revision of the final draft of the manuscript. SK: investigation of the study, methodology, revision of the final draft of the manuscript. NT: investigation of the study, methodology, revision of the final draft of the manuscript. KT: investigation of the study, methodology, revision of the final draft of the manuscript. KG: investigation of the study, methodology, revision of the final draft of the manuscript. CCM: investigation of the study, revision of the final draft of the manuscript. KAK: investigation of the study, supervision of the study, revision of the final draft of the manuscript. EM: investigation of the study, conception and design, supervision of the study, revision of the final draft of the manuscript. EA: investigation of the study, methodology, data curation, software, formal analysis, visualization, conception and design, supervision of the study, funding and resources for the study, writing of the first draft of the manuscript, revision of the final draft of the manuscript. All the authors read and approved the final manuscript.

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Correspondence to Efthimia Antonopoulou.

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The animal study protocol was performed in accordance with animal welfare guidelines of the Hellenic Aquaculture Producer Organization (HAPO) and approved and validated by the Hellenic Ministry of Rural Development and Food (1558/198651), alongside the company’s routine quality control samplings. All animal experiments comply with the ARRIVE guidelines and were carried out in accordance with the EU Directive 2010/63/EU for animal experiments.

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Panteli, N., Demertzioglou, M., Feidantsis, K. et al. Advances in understanding the mitogenic, metabolic, and cell death signaling in teleost development: the case of greater amberjack (Seriola dumerili, Risso 1810). Fish Physiol Biochem 48, 1665–1684 (2022). https://doi.org/10.1007/s10695-022-01146-5

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  • DOI: https://doi.org/10.1007/s10695-022-01146-5

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