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Priming European Sea Bass Female Broodstock Improves the Antimicrobial Immunity of Their Offspring.


ABSTRACT: Acquiring immunocompetence is essential in the development of fish embryos, as they are exposed to environmental pathogens even before they are fertilized. Despite the importance of the antimicrobial function as the first line of defense against foreign microorganisms, little knowledge is available about its role in larval development. In vertebrates, transgenerational immune priming influences the acquisition of immunocompetence of specimens, regulating the selective allocation of nongenetic resources to their progeny and modulating their development. In this work, we primed teleost European sea bass broodstock females with a viral protein expression vector in order to evaluate the innate immunity development of their offspring. Several antimicrobial functions, the pattern of expression of gene coding for different antimicrobial peptides (AMPs), and their protein levels, were evaluated in eggs and larvae during development. Our data determined the presence of antimicrobial proteins of maternal origin in eggs, and that female vaccination increases antimicrobial activities and the transcription and synthesis of AMPs during larval development.

SUBMITTER: Valero Y 

PROVIDER: S-EPMC9913748 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Priming European Sea Bass Female Broodstock Improves the Antimicrobial Immunity of Their Offspring.

Valero Yulema Y   Mercado Luis L   Arizcun Marta M   Cuesta Alberto A   Chaves-Pozo Elena E  

Animals : an open access journal from MDPI 20230126 3


Acquiring immunocompetence is essential in the development of fish embryos, as they are exposed to environmental pathogens even before they are fertilized. Despite the importance of the antimicrobial function as the first line of defense against foreign microorganisms, little knowledge is available about its role in larval development. In vertebrates, transgenerational immune priming influences the acquisition of immunocompetence of specimens, regulating the selective allocation of nongenetic re  ...[more]

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