Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication
Double-stranded RNA (dsRNA)-mediated genetic interference (RNAi) is a widely used reverse genetic tool for determining the loss-of-function phenotype of a gene. Here, the possible induction of an immune response by long dsRNA was tested in a marine bivalve (Crassostrea gigas), as well as the specifi...
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Online Access: | https://archimer.ifremer.fr/doc/00409/52011/52698.pdf https://doi.org/10.1242/jeb.156299 https://archimer.ifremer.fr/doc/00409/52011/ |
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ftarchimer:oai:archimer.ifremer.fr:52011 2023-05-15T15:58:58+02:00 Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication Pauletto, Marianna Segarra, Amelie Montagnani, Caroline Quillien, Virgile Faury, Nicole Le Grand, Jacqueline Miner, Philippe Petton, Bruno Labreuche, Yannick Fleury, Elodie Fabioux, Caroline Bargelloni, Luca Renault, Tristan Huvet, Arnaud 2017-10-18 application/pdf https://archimer.ifremer.fr/doc/00409/52011/52698.pdf https://doi.org/10.1242/jeb.156299 https://archimer.ifremer.fr/doc/00409/52011/ eng eng Company Of Biologists Ltd info:eu-repo/grantAgreement/EC/FP7/245119/EU//REPROSEED https://archimer.ifremer.fr/doc/00409/52011/52698.pdf doi:10.1242/jeb.156299 https://archimer.ifremer.fr/doc/00409/52011/ 2017. Published by The Company of Biologists Ltd info:eu-repo/semantics/openAccess restricted use Journal Of Experimental Biology (0022-0949) (Company Of Biologists Ltd), 2017-10-18 , Vol. 220 , N. 20 , P. 3671-3685 Anti-viral response RNA interference Inhibitor of NF-kappa B Marine bivalve Ostreid herpesvirus 1 text Publication info:eu-repo/semantics/article 2017 ftarchimer https://doi.org/10.1242/jeb.156299 2021-09-23T20:30:05Z Double-stranded RNA (dsRNA)-mediated genetic interference (RNAi) is a widely used reverse genetic tool for determining the loss-of-function phenotype of a gene. Here, the possible induction of an immune response by long dsRNA was tested in a marine bivalve (Crassostrea gigas), as well as the specific role of the subunit 2 of the nuclear factor kappa B inhibitor (I kappa B2). This gene is a candidate of particular interest for functional investigations in the context of oyster mass mortality events, as Cg-I kappa B2 mRNA levels exhibited significant variation depending on the amount of ostreid herpesvirus 1 (OsHV-1) DNA detected. In the present study, dsRNAs targeting Cg-I kappa B2 and green fluorescent protein genes were injected in vivo into oysters before being challenged by OsHV-1. Survival appeared close to 100% in both dsRNA-injected conditions associated with a low detection of viral DNA and a low expression of a panel of 39 OsHV-1 genes as compared with infected control. Long dsRNA molecules, both Cg-I kappa B2- and GFP-dsRNA, may have induced an anti-viral state controlling the OsHV-1 replication and precluding the understanding of the specific role of Cg-I kappa B2. Immune-related genes including Cg-I kappa B1, Cg-Rel1, Cg-IFI44, Cg-PKR and Cg-IAP appeared activated in the dsRNA-injected condition, potentially hampering viral replication and thus conferring a better resistance to OsHV-1 infection. We revealed that long dsRNA-mediated genetic interference triggered an anti-viral state in the oyster, emphasizing the need for new reverse genetics tools for assessing immune gene function and avoiding off-target effects in bivalves. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Pacific Journal of Experimental Biology |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Anti-viral response RNA interference Inhibitor of NF-kappa B Marine bivalve Ostreid herpesvirus 1 |
spellingShingle |
Anti-viral response RNA interference Inhibitor of NF-kappa B Marine bivalve Ostreid herpesvirus 1 Pauletto, Marianna Segarra, Amelie Montagnani, Caroline Quillien, Virgile Faury, Nicole Le Grand, Jacqueline Miner, Philippe Petton, Bruno Labreuche, Yannick Fleury, Elodie Fabioux, Caroline Bargelloni, Luca Renault, Tristan Huvet, Arnaud Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication |
topic_facet |
Anti-viral response RNA interference Inhibitor of NF-kappa B Marine bivalve Ostreid herpesvirus 1 |
description |
Double-stranded RNA (dsRNA)-mediated genetic interference (RNAi) is a widely used reverse genetic tool for determining the loss-of-function phenotype of a gene. Here, the possible induction of an immune response by long dsRNA was tested in a marine bivalve (Crassostrea gigas), as well as the specific role of the subunit 2 of the nuclear factor kappa B inhibitor (I kappa B2). This gene is a candidate of particular interest for functional investigations in the context of oyster mass mortality events, as Cg-I kappa B2 mRNA levels exhibited significant variation depending on the amount of ostreid herpesvirus 1 (OsHV-1) DNA detected. In the present study, dsRNAs targeting Cg-I kappa B2 and green fluorescent protein genes were injected in vivo into oysters before being challenged by OsHV-1. Survival appeared close to 100% in both dsRNA-injected conditions associated with a low detection of viral DNA and a low expression of a panel of 39 OsHV-1 genes as compared with infected control. Long dsRNA molecules, both Cg-I kappa B2- and GFP-dsRNA, may have induced an anti-viral state controlling the OsHV-1 replication and precluding the understanding of the specific role of Cg-I kappa B2. Immune-related genes including Cg-I kappa B1, Cg-Rel1, Cg-IFI44, Cg-PKR and Cg-IAP appeared activated in the dsRNA-injected condition, potentially hampering viral replication and thus conferring a better resistance to OsHV-1 infection. We revealed that long dsRNA-mediated genetic interference triggered an anti-viral state in the oyster, emphasizing the need for new reverse genetics tools for assessing immune gene function and avoiding off-target effects in bivalves. |
format |
Article in Journal/Newspaper |
author |
Pauletto, Marianna Segarra, Amelie Montagnani, Caroline Quillien, Virgile Faury, Nicole Le Grand, Jacqueline Miner, Philippe Petton, Bruno Labreuche, Yannick Fleury, Elodie Fabioux, Caroline Bargelloni, Luca Renault, Tristan Huvet, Arnaud |
author_facet |
Pauletto, Marianna Segarra, Amelie Montagnani, Caroline Quillien, Virgile Faury, Nicole Le Grand, Jacqueline Miner, Philippe Petton, Bruno Labreuche, Yannick Fleury, Elodie Fabioux, Caroline Bargelloni, Luca Renault, Tristan Huvet, Arnaud |
author_sort |
Pauletto, Marianna |
title |
Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication |
title_short |
Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication |
title_full |
Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication |
title_fullStr |
Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication |
title_full_unstemmed |
Long dsRNAs promote an anti-viral response in Pacific oyster hampering ostreid herpesvirus 1 replication |
title_sort |
long dsrnas promote an anti-viral response in pacific oyster hampering ostreid herpesvirus 1 replication |
publisher |
Company Of Biologists Ltd |
publishDate |
2017 |
url |
https://archimer.ifremer.fr/doc/00409/52011/52698.pdf https://doi.org/10.1242/jeb.156299 https://archimer.ifremer.fr/doc/00409/52011/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Journal Of Experimental Biology (0022-0949) (Company Of Biologists Ltd), 2017-10-18 , Vol. 220 , N. 20 , P. 3671-3685 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/245119/EU//REPROSEED https://archimer.ifremer.fr/doc/00409/52011/52698.pdf doi:10.1242/jeb.156299 https://archimer.ifremer.fr/doc/00409/52011/ |
op_rights |
2017. Published by The Company of Biologists Ltd info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1242/jeb.156299 |
container_title |
Journal of Experimental Biology |
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1766394743523115008 |