Document Detail


Toll-like receptors and MyD88 adaptors in Mytilus: Complete cds and gene expression levels.
MedLine Citation:
PMID:  23485525     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
TLR- and MyD88-related sequences have been previously investigated in Mytibase and then in new transcript reads obtained by Illumina technology from the mussel, Mytilus galloprovincialis. Based on full cds and domain organizations of virtual translations, we identified 23 Toll-like receptors (TLRs) and 3 MyD88 adaptors. MgTLRs can be arranged in 4 clusters according to extra-cellular LRR domain content. MgTLR-b, -i and -k were the only ones containing a multiple cysteine cluster (mccTLR), a domain composition also found in Drosophila Toll-1 and 18-wheeler. The 3 MyD88 we identified in M. galloprovincialis were also retrieved from Mytilus edulis, as well as MgTLR-b and -i. All MgTLRs were constitutively expressed in digestive gland whereas only 4 of them were also present in hemocytes. On the opposite, the 3 MgMyD88s were constitutively expressed in all the tissues. In vivo challenge of M. galloprovincialis with bacteria caused the up regulation of only MgTLR-i, but of all the 3 MgMyD88s. Highest response was induced by Gram-negative Vibrio anguillarum at 9h p.i. Injection of filamentous fungus, Fusarium oxysporum, resulted in up regulation of MgTLR-i and MgMyD88-c at 9h p.i. Such similar pattern of responses suggested MgMyD88-c represents the intra cytoplasm partner of MgTLR-i. Their interaction constituted the first cellular event revealing the existence of a Toll-signaling pathway in Lophotrochozoa.
Authors:
Mylène Toubiana; Marco Gerdol; Umberto Rosani; Alberto Pallavicini; Paola Venier; Philippe Roch
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-26
Journal Detail:
Title:  Developmental and comparative immunology     Volume:  -     ISSN:  1879-0089     ISO Abbreviation:  Dev. Comp. Immunol.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-3-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708205     Medline TA:  Dev Comp Immunol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013. Published by Elsevier Ltd.
Affiliation:
Ecologie des Systèmes Marins et Côtiers (EcoSym), Université Montpellier 2-CNRS, cc 093, place E. Bataillon, F-34095 Montpellier cedex 05, France.
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