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 and comparative immunology 2018-04, Vol.81, p.128
Main Authors: Laghari, Zubair Ahmed, Li, Li, Chen, Shan Nan, Huo, Hui Jun, Huang, Bei, Zhou, Ying, Nie, P
Format: Article
Language:English
Subjects:
Animal tissues
Aquaculture
Biological activity
Composition
Cytokines
Fish
Gene expression
Genes
Immune response
Immune system
Immunomodulation
Infections
Inflammation
Interferon
Interferon regulatory factor 1
Interferon regulatory factor 3
Interferon regulatory factor 4
Interferon regulatory factor 7
Kidneys
Organs
Poly (I:C)
Siniperca chuatsi
Spleen
Tissues
Transcription
Viruses
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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.
ISSN:0145-305X
1879-0089