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Vet Immunol Immunopathol. 2019 Apr;210:23-27. doi: 10.1016/j.vetimm.2019.03.004. Epub 2019 Mar 11.

Stocking density induces differential expression of immune-related genes in skeletal muscle and head kidney of fine flounder (Paralichthys adspersus).

Author information

1
Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile. Electronic address: valenzuela.i.cristian@gmail.com.
2
Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile. Electronic address: sebastian.escobar@uc.cl.
3
Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile. Electronic address: r.zuloaga@uandresbello.edu.
4
Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile. Electronic address: ta.vera@uandresbello.edu.
5
Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, 2340000 Valparaíso, Chile. Electronic address: luis.mercado@pucv.cl.
6
Fish Endocrinology Laboratory, Department of Biological and Environmental Sciences, University of Gothenburg, 40530 Gothenburg, Sweden. Electronic address: thrandur.bjornsson@bioenv.gu.se.
7
Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), 2340000 Valparaíso, Chile. Electronic address: jvaldes@unab.cl.
8
Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Facultad de Ciencias de la Vida, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepcion, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), 2340000 Valparaíso, Chile. Electronic address: amolina@unab.cl.

Abstract

Immunity can be modulated by different internal and external factors, being stress one of the most important. However, the stress effects on the immunocompetence of the skeletal muscle has not been studied in detail in earlier vertebrates. Here, we examine the effect of chronic (4 and 7 weeks) crowding stress on the immunocompetence of skeletal muscle and head kidney in the fine flounder (Paralichthys adspersus). Corticosteroid receptor transcript levels and their target genes; pro-inflammatory cytokines, and Toll-, NOD-, and RIG-like receptors were quantified by qPCR. The results indicate that chronic stress down-regulates the expression of these genes in muscle, compromising skeletal muscle immunocompetence, while the expression of these genes is upregulated in head kidney after seven weeks of crowding stress. The data suggests that chronic stress modulates the expression of these immune-related genes in a tissue-specific manner.

KEYWORDS:

Crowding stress; Fish; Immune receptors; Stress response

PMID:
30947976
DOI:
10.1016/j.vetimm.2019.03.004
[Indexed for MEDLINE]

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