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Temperature responsiveness of gilthead sea bream bone; an in vitro and in vivo approach.


ABSTRACT: This study aimed to characterize the molecules involved in osteogenesis in seabream and establish using in vitro/in vivo approaches the responsiveness of selected key genes to temperature. The impact of a temperature drop from 23 to 13?°C was evaluated in juvenile fish thermally imprinted during embryogenesis. Both, in vitro/in vivo, Fib1a, appeared important in the first stages of bone formation, and Col1A1, ON and OP, in regulating matrix production and mineralization. OCN mRNA levels were up-regulated in the final larval stages when mineralization was more intense. Moreover, temperature-dependent differential gene expression was observed, with lower transcript levels in the larvae at 18?°C relative to those at 22?°C, suggesting bone formation was enhanced in the latter group. Results revealed that thermal imprinting affected the long-term regulation of osteogenesis. Specifically, juveniles under the low and low-to-high-temperature regimes had reduced levels of OCN when challenged, indicative of impaired bone development. In contrast, gene expression in fish from the high and high-to-low-temperature treatments was unchanged, suggesting imprinting may have a protective effect. Overall, the present study revealed that thermal imprinting modulates bone development in seabream larvae, and demonstrated the utility of the in vitro MSC culture as a reliable tool to investigate fish osteogenesis.

SUBMITTER: Riera-Heredia N 

PROVIDER: S-EPMC6060158 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

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Temperature responsiveness of gilthead sea bream bone; an in vitro and in vivo approach.

Riera-Heredia Natàlia N   Martins Rute R   Mateus Ana Patrícia AP   Costa Rita A RA   Gisbert Enric E   Navarro Isabel I   Gutiérrez Joaquim J   Power Deborah M DM   Capilla Encarnación E  

Scientific reports 20180725 1


This study aimed to characterize the molecules involved in osteogenesis in seabream and establish using in vitro/in vivo approaches the responsiveness of selected key genes to temperature. The impact of a temperature drop from 23 to 13 °C was evaluated in juvenile fish thermally imprinted during embryogenesis. Both, in vitro/in vivo, Fib1a, appeared important in the first stages of bone formation, and Col1A1, ON and OP, in regulating matrix production and mineralization. OCN mRNA levels were up-  ...[more]

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