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Title: Searching for immunomodulatory sequences in sea bass (Dicentrarchus labrax L.): Transcripts analysis from thymus
Authors: Pallavicini, Alberto
Randelli, Elisa
Modonut, Martina
Casani, Daniela
Scapigliati, Giuseppe
Buonocore, Francesco
Keywords: Fish Immunology;Molecular Biology and Evolution;Dicentrarchus labrax;ESTs sequencing;Immune responses;Real-time PCR;Thymus
Issue Date: 2010
Publisher: Elsevier
Source: Pallavicini, A. et al. 2010. Searching for immunomodulatory sequences in sea bass (Dicentrarchus labrax L.): Transcripts analysis from thymus. "Fish and Shellfish Immunology" 29(4): 571-578
The thymus is a key organ of the immune system in most vertebrates and, for this reason, it has been used in this paper for the generation of a normalized cDNA library from sea bass (Dicentrarchus labrax), one of the most extensively cultured species in South Mediterranean aquaculture. A total of 1,632 ESTs from this library were initially analyzed for sequence quality and vector sequences and, after this control, 1,264 (77% of total clones sequenced) high-quality ESTs were further processed. The total collection of Dicentrarchus labrax thymus ESTs has been deposited in the EBI-GenBank-DBJ database (GenBank accession numbers from FN565576 to FN566839). The functional classification of ESTs was performed by Gene Ontology and KEGG annotation and, successively, the sequences were analysed using the ImmunomeBase software to identify potentially immuno related genes. Using this approach, we found about 100 putative genes involved in immune system responses, most new in sea bass, that were analysed most in detail. Some of the potentially interesting genes identified by these in silico analyses were studied by real-time PCR to verify their expression both at basal level and after in vitro stimulation of sea bass head kidney leukocytes. The used strategy has been confirmed as a good approach to discovery new immuno-related genes and to improve the knowledge of specific markers that could help the discrimination of T cell subpopulations in sea bass and, in general, in Teleosts.
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ISSN: 1050-4648
DOI: 10.1016/j.fsi.2010.06.007
Appears in Collections:DISA - Archivio della produzione scientifica

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