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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50398

Title: Salmonids Have an Extraordinary Complex Type I IFN System: Characterization of the IFN Locus in Rainbow Trout Oncorhynchus mykiss Reveals Two Novel IFN Subgroups.
Authors: Zou J
Gorgoglione B
Taylor NG
Summathed T
Lee PT
Panigrahi A
Genet C
Chen YM
Chen TY
Ul Hassan M
Mughal SM
Boudinot P
Secombes CJ
Contributors: 國立臺灣海洋大學:水產養殖學系
Date: 2014-07
Issue Date: 2018-10-08T01:59:48Z
Publisher: J Immunol
Abstract: Abstract: Fish type I IFNs are classified into two groups with two (group I) or four (group II) cysteines in the mature peptide and can be further divided into four subgroups, termed IFN-a, -b, -c, and -d. Salmonids possess all four subgroups, whereas other teleost species have one or more but not all groups. In this study, we have discovered two further subgroups (IFN-e and -f) in rainbow trout Oncorhynchus mykiss and analyzed the expression of all six subgroups in rainbow trout and brown trout Salmo trutta. In rainbow trout RTG-2 and RTS-11 cells, polyinosinic-polycytidylic acid stimulation resulted in early activation of IFN-d, whereas the IFN-e subgroup containing the highest number of members showed weak induction. In contrast with the cell lines, remarkable induction of IFN-a, -b, and -c was detected in primary head kidney leukocytes after polyinosinic-polycytidylic acid treatment, whereas a moderate increase of IFNs was observed after stimulation with resiquimod. Infection of brown trout with hemorrhagic septicemia virus resulted in early induction of IFN-d, -e, and -f and a marked increase of IFN-b and IFN-c expression in kidney and spleen. IFN transcripts were found to be strongly correlated with the viral burden and with marker genes of the IFN antiviral cascade. The results demonstrate that the IFN system of salmonids is far more complex than previously realized, and in-depth research is required to fully understand its regulation and function.
Relation: 193(5) pp.2273-2286
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50398
Appears in Collections:[水產養殖學系] 期刊論文

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