Composition and transcription of all interferon regulatory factors (IRFs), IRF1-11 in a perciform fish, the mandarin fish, Siniperca chuatsi

Interferon regulatory factors (IRFs) are a family of mediators in various biological processes including immune modulation of interferon (IFN) and proinflammatory cytokine expression. However, the data on the complete composition of IRFs is rather limited in teleost fish. In the present study, all I...

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Bibliographic Details
Published in:Developmental & Comparative Immunology
Main Authors: Laghari, Zubair Ahmed, Li, Li, Chen, Shan Nan, Huo, Hui Jun, Huang, Bei, Zhou, Ying, Nie, P.
Format: Report
Language:English
Published: ELSEVIER SCI LTD 2018
Subjects:
IRF
Transcription
Mandarin fish
Siniperca chuatsi
Fisheries
Immunology
Zoology
NECROSIS VIRUS ISKNV
COD GADUS-MORHUA
MOLECULAR CHARACTERIZATION
EXPRESSION ANALYSIS
PARALICHTHYS-OLIVACEUS
JAPANESE FLOUNDER
ONCORHYNCHUS-MYKISS
INFECTIOUS SPLEEN
RAINBOW-TROUT
POSITIVE FEEDBACK
Gadus morhua
Online Access:http://ir.ihb.ac.cn/handle/342005/29885
http://ir.ihb.ac.cn/handle/342005/29886
https://doi.org/10.1016/j.dci.2017.11.015
Description
Summary:Interferon regulatory factors (IRFs) are a family of mediators in various biological processes including immune modulation of interferon (IFN) and proinflammatory cytokine expression. However, the data on the complete composition of IRFs is rather limited in teleost fish. In the present study, all IRF members, i.e. IRF1-11 with two IRF4, IRF4a and IRF4b have been characterised in an aquaculture species of fish, the mandarin fish, Siniperca chuatsi, in addition to the previous report of IRF1, IRF2, IRF3 and IRF7 from the fish. These IRFs are constitutively expressed in various organs/tissues of the fish, and their expression can be induced following the stimulation of polyinosinic:polycytidylic acid (poly(I:C)) and the infection of infectious spleen and kidney necrosis virus (ISKNV), a viral pathogen of mandarin fish in aquaculture. The ISKNV infection induced the significant increase in the expression of some IRF genes, i.e. IRF2, IRF4a, IRF7, IRF9, IRF10 at 24 or 36 h post-infection (hpi) in spleen and head-kidney, and the significant increase of some other IRF genes, e.g. IRF1, IRF3, IRF4b, IRF5, IRF6, IRF8 at later stage of infection from 72, or 96, or even 120 hpi, which may imply the inhibitory effect of ISKNV on fish immune response. It is considered that the present study provides the first detailed analysis on all IRF members in an aquaculture species of fish, and can be served as the base for further investigation on the role of IRFs in teleost fish. (C) 2017 Elsevier Ltd. All rights reserved.

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