Abstract |
To elucidate the immunity-protecting role of the interferon-β promoter stimulator-1 (ScIPS-1) in barbel chub Squaliobarbus curriculus, the full-length cDNA of ScIPS-1 was cloned and expression levels in response to stimulation were investigated. In addition, the function of ScIPS-1 and its domains were analyzed. The full-length cDNA of ScIPS-1 is 2524 bp and encodes 601 aa. The N-terminal caspase activation and recruitment domain, central proline-rich domain, C-terminal transmembrane domain, C2HC-zinc finger, and Cwf21 domains were identified. The mRNA level of ScIPS-1 was the highest in the kidney, whereas the highest protein level was observed in the liver. The ScIPS-1 expressions were significantly up-regulated after lipopolysaccharide and poly I:C treatment. The ScIPS-1 protein level was up-regulated at 12 h in the head kidney and was up-regulated at 12 h and then down-regulated from 12 to 48 h in the liver after grass carp reovirus (GCRV) infection. The CiIFN and CiMx transcription levels were significantly enhanced in pEGFP-C1-IPS-1 and pcDNA3.1-ΔCwf21 overexpressing cells after GCRV infection. The results indicate that ScIPS-1 may function in the immune response against pathogens and provide a basis for achieving resistance to diseases in fish breeding.
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Authors | Xin Zhao, Tiaoyi Xiao, Shengzhen Jin, Jing'an Wang, Junya Wang, Hong Luo, Rui Li, Tong Sun, Jun Zou, Yaoguo Li |
Journal | Developmental and comparative immunology
(Dev Comp Immunol)
Vol. 104
Pg. 103571
(03 2020)
ISSN: 1879-0089 [Electronic] United States |
PMID | 31837379
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2019 Elsevier Ltd. All rights reserved. |
Chemical References |
- Adaptor Proteins, Signal Transducing
- Fish Proteins
- Lipopolysaccharides
- MAVS protein, human
- Interferon-beta
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Topics |
- Adaptor Proteins, Signal Transducing
(genetics, metabolism)
- Animals
- Cells, Cultured
- Cloning, Molecular
- Cyprinidae
(immunology)
- Fish Proteins
(genetics, metabolism)
- Head Kidney
(immunology, metabolism)
- Humans
- Immunity, Innate
- Interferon-beta
(genetics)
- Lipopolysaccharides
(immunology)
- Reoviridae
(physiology)
- Reoviridae Infections
(immunology)
- Sequence Alignment
- Up-Regulation
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