Putative antiviral activity in hemolymph from adult Pacific oysters, Crassostrea gigas

Type Article
Date 2005-06
Language English
Author(s) Olicard Cecile1, 2, 3, Renault Tristan2, Torhy Corinne4, Benmansour Abdenour4, Bourgougnon Nathalie1
Affiliation(s) 1 : Univ Bretagne Sud, Lab Biotechnol & Chim Marines, EA 2594, Ctr Rech Yves Coppens, F-56017 Vannes, France.
2 : IFREMER, Lab Genet & Pathol, F-17390 La Tremblade, France.
3 : Univ La Rochelle, Lab Biol & Environm Marins, F-17042 La Rochelle, France.
4 : INRA, Unite Virol & Immunol Mol, F-78352 Jouy En Josas, France.
Source Antiviral Research (0166-3542) (Elsevier), 2005-06 , Vol. 66 , N. 2-3 , P. 147-152
DOI 10.1016/j.antiviral.2005.03.003
WOS© Times Cited 39
Keyword(s) Hemolymph, VHSV, IPNV, HSV, Antiviral defense, Crassosirea gigas, Oyster
Abstract Innate, non-specific resistance mechanisms are important to pathogens, particularly for delaying virus replication at the onset of infection, Innate immunity constitutes the first line of defense in vertebrates and is the only one in invertebrates. Little is known about possible antiviral substances in invertebrates. The present work concerns a Study of antiviral substances in hemolymph from adult Crassostrea gigas oysters. Despite the detection of cytotoxicity in fresh filtered hemolymph for both mammalian (CC50: 750 mu g/ml) and fish cells (CC50: > 2000 mu g/ml for EPC cells and 345 mu g/ml for RTG-2 cells), an antiviral substance was detected. Fresh filtered hemolymph was capable of inhibiting the replication of herpes simplex virus type I in vitro at an EC50 of 425 mu g/ml (total proteins) and the replication of infections pancreatic necrosis virus in EPC and RTG-2 cells at 217 and 156 mu g/ml (total proteins), respectively.
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