Intracellular interferons in fish: a unique means to combat viral infection.

We demonstrate for the first time in vertebrates, that alternative splicing of interferon (IFN) genes can lead to a functional intracellular IFN (iIFN). Fish IFN genes possess introns and in rainbow trout three alternatively spliced transcripts of the IFN1 gene exist. Two of the encoded IFNs are pre...

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Main Authors: Ming-Xian Chang, Jun Zou, Pin Nie, Bei Huang, Zhanglong Yu, Bertrand Collet, Chris J Secombes
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS Pathogens
Online Access:http://europepmc.org/articles/PMC3828176?pdf=render
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author Ming-Xian Chang
Jun Zou
Pin Nie
Bei Huang
Zhanglong Yu
Bertrand Collet
Chris J Secombes
author_facet Ming-Xian Chang
Jun Zou
Pin Nie
Bei Huang
Zhanglong Yu
Bertrand Collet
Chris J Secombes
author_sort Ming-Xian Chang
collection DOAJ
description We demonstrate for the first time in vertebrates, that alternative splicing of interferon (IFN) genes can lead to a functional intracellular IFN (iIFN). Fish IFN genes possess introns and in rainbow trout three alternatively spliced transcripts of the IFN1 gene exist. Two of the encoded IFNs are predicted to lack a signal peptide. When overexpressed these iIFNs induce antiviral responses. Variants of the two IFNR receptor chains (IFNAR1 and IFNAR2) lacking a signal peptide are also present in trout. Transfection of HEK 293T cells with the iIFN and iIFNR molecules results in STAT phosphorylation and induction of antiviral genes. These results show that fish possess a functioning iIFN system that may act as a novel defence to combat viral infection.
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spelling doaj.art-6cb48802b1d5448582bd6be4ef3ec3d92022-12-22T00:18:31ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742013-01-01911e100373610.1371/journal.ppat.1003736Intracellular interferons in fish: a unique means to combat viral infection.Ming-Xian ChangJun ZouPin NieBei HuangZhanglong YuBertrand ColletChris J SecombesWe demonstrate for the first time in vertebrates, that alternative splicing of interferon (IFN) genes can lead to a functional intracellular IFN (iIFN). Fish IFN genes possess introns and in rainbow trout three alternatively spliced transcripts of the IFN1 gene exist. Two of the encoded IFNs are predicted to lack a signal peptide. When overexpressed these iIFNs induce antiviral responses. Variants of the two IFNR receptor chains (IFNAR1 and IFNAR2) lacking a signal peptide are also present in trout. Transfection of HEK 293T cells with the iIFN and iIFNR molecules results in STAT phosphorylation and induction of antiviral genes. These results show that fish possess a functioning iIFN system that may act as a novel defence to combat viral infection.http://europepmc.org/articles/PMC3828176?pdf=render
spellingShingle Ming-Xian Chang
Jun Zou
Pin Nie
Bei Huang
Zhanglong Yu
Bertrand Collet
Chris J Secombes
Intracellular interferons in fish: a unique means to combat viral infection.
PLoS Pathogens
title Intracellular interferons in fish: a unique means to combat viral infection.
title_full Intracellular interferons in fish: a unique means to combat viral infection.
title_fullStr Intracellular interferons in fish: a unique means to combat viral infection.
title_full_unstemmed Intracellular interferons in fish: a unique means to combat viral infection.
title_short Intracellular interferons in fish: a unique means to combat viral infection.
title_sort intracellular interferons in fish a unique means to combat viral infection
url http://europepmc.org/articles/PMC3828176?pdf=render
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