Molecular identification and immunological characteristics of goose suppressor of cytokine signaling 1 (SOCS-1) in vitro and vivo following DTMUV challenge

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Purpose suppressor of cytokine signaling 1 (SOCS-1) is inducible feedback inhibitors of cytokine signaling and involved in viral infection through regulation of both innate and adaptive immunity. In this study, we firstly cloned SOCS-1 (goSOCS-1) from duck Tembusu virus (DTMUV) infected goose. The full-length sequence of goSOCS-1 ORF is 624 bp and encoded 108 amino acids. Structurally, the mainly functional regions (KIR, SH2, SOCS-box) were conserved between avian and mammalian. The tissues distribution data showed SOCS-1 highly expressed in immune related tissues (SP, LU, HG) of both gosling and adult goose. Moreover, the goSOCS-1 transcripts were induced by goIFNs in GEFs and by TLR ligands in PBMCs. Notably, upon DTMUV infection, highly expression level of goSOCS-1 was detected in vitro and in vivo with high viral load. Our results indicated that goSOCS-1 might involve in both innate and adaptive antiviral immunity of waterfowl.

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