Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Inflammatory response in primary muscle cell cultures in Atlantic salmon (Salmo salar)

ABSTRACT: This experiment was aimed at understanding the transcriptomic response of primary muscle cell cultures to 24h rIL-1beta stimulation

ORGANISM(S): Salmo salar

SUBMITTER: Sam Martin

PROVIDER: E-MTAB-1692 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Inflammatory responses in primary muscle cell cultures in Atlantic salmon (Salmo salar).

Pooley Nicholas J NJ Tacchi Luca L Secombes Christopher J CJ Martin Samuel A M SA

BMC genomics 20131101

<h4>Background</h4>The relationship between fish health and muscle growth is critical for continued expansion of the aquaculture industry. The effect of immune stimulation on the expression of genes related to the energy balance of fish is poorly understood. In mammals immune stimulation results in major transcriptional changes in muscle, potentially to allow a reallocation of amino acids for use in the immune response and energy homeostasis. The aim of this study was to investigate the effects ...[more]

PMID: 24180744

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Project description:The aim of this experiment was to explore transcriptomic changes in the gills of Altantic salmon (Salmo salar) following a model lab based parr smolt transformation from fresh water (FW) to salt water (SW). The process of smoltification (migration from FW to SW) is stimulated by long day photoperiod, which acts on the tissue-specific levels of active thyroid hormone (triiodothyronine, T3) through the expression of thyroid hormone type 2 deiodinase (dio2), responsible for conversion of inactive thyroxine (T4) to T3. To gain insight into the functional significance of dio2 induction, we performed a SW-challenge experiment in which we inhibited dio2 activity by addition of iopanoic acid (IOP) to the SW. We also assessed the ability of co-treatment with T3 to override IOP effects. Juvenile fish maintained in FW were subjected to a standard smolt photoperiod regime known to stimulate smoltification, after which they were randomly allocated to one of the four treatments: SW, SW+IOP, SW+IOP+T3 and FW as a control. Fish (n = 8-10 per treatment) were exposed to these conditions for 6 h and then sacrificed to obtain gill tissue for microarray analysis, carried out using a custom-designed Agilent oligonucleotide microarray platform Salar_2 (one glass slide with 4 x 44K arrays, Agilent design ID: 025520, array design A-MEXP-2065), developed and validated for Atlantic salmon (for details, see specific protocols) . In total, 36 hybridisations were performed on gills from individual fish, with 8-10 replicate fish per treatment. We identified 1939 genes whose expression was significantly increased or decreased by transfer from FW to SW. For a subset of 259 genes, this SW response was abolished if IOP was added to the SW, but maintained if T3 was also present during IOP treatment. This group of genes constitutes a candidate list, for which SW-inducibility appears to be dependent on locally mediated changes in gill T3 availability. The results of this experiment have been submitted for publication in Current Biology and are currently under review.

Dataset Information

Inflammatory response in primary muscle cell cultures in Atlantic salmon (Salmo salar)

Publications

Inflammatory responses in primary muscle cell cultures in Atlantic salmon (Salmo salar).

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