Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/21144
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Lipopolysaccharides isolated from Aeromonas salmonicida and Vibrio anguillarum show quantitative but not qualitative differences in inflammatory outcome in Sparus aurata (Gilthead seabream)
Authors: Boltana, Sebastian
Tridico, Rosa
Teles, Mariana
MacKenzie, Simon
Tort, Lluis
Contact Email: sebastian.boltana@stir.ac.uk
Keywords: Lipopolysaccharide
Defence system
Sparus aurata
Issue Date: Aug-2014
Publisher: Elsevier
Citation: Boltana S, Tridico R, Teles M, MacKenzie S & Tort L (2014) Lipopolysaccharides isolated from Aeromonas salmonicida and Vibrio anguillarum show quantitative but not qualitative differences in inflammatory outcome in Sparus aurata (Gilthead seabream), Fish and Shellfish Immunology, 39 (2), pp. 475-482.
Abstract: In fish, the defence system recognises pathogenic microorganisms via pathogen recognition receptors (PRRs) that sense particular structures of the pathogens; the so-called pathogen associated molecular patterns (PAMPs) such as bacterial lipopolysaccharides (LPSs). The result of the PAMP-PRR interactions leads to complex and orchestrated immune responses. In this study, Sparus aurata (Gilthead seabream) were intraperitoneally injected with purified lipopolysaccharide (LPS) from Aeromonas salmonicida (As)- and Vibrio anguillarum (Va) (1 mg*Kgfish-1), both Gram negative bacteria responsible for vibriosis and furunculosis respectively, therefore causing an impact upon marine fish cultures. Head-kidney, intestine, spleen, liver and blood samples were collected at 3, 6, 12 and 24 h post-injection. Plasma levels of cortisol, prostaglandins and lactate were measured and were significantly increased after As-LPS and Va-LPS treatment. Furthermore, tissue-specific differences of the gene regulatory patterns were evident for each LPS. When monocyte/macrophage cell cultures were challenged with As-LPS and Va-LPS, the pro-inflammatory cytokine mRNA abundances present a similar pattern of response. However, As-LPS always triggered a stronger response concerning TNFα, IL1β and cyclooxygenase-2 (COX2) mRNA abundance as well as PGE2 levels in the supernatant. Overall, the results indicate that specific LPSs do not activate different pro-inflammatory responses and that the observed gene expression pattern is tissue and concentration dependent.
Type: Journal Article
URI: http://hdl.handle.net/1893/21144
DOI Link: http://dx.doi.org/10.1016/j.fsi.2014.06.003
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Aquaculture
Universitat Autonoma de Barcelona
Universitat Autonoma de Barcelona
Aquaculture
Universitat Autonoma de Barcelona

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