Interleukin-26 in channel catfish ( Ictalurus punctatus): ): Molecular characterization and immune functional activity

文献类型： 外文期刊

第一作者： Yang, Yibin

作者： Yang, Yibin;He, Hao;Dong, Jing;Liu, Yongtao;Yang, Qiuhong;Ai, Xiaohui;Zhu, Xia

作者机构：

关键词： Ictalurus punctatus; IL-26; Inflammatory response; Cytokine; Molecular characterization

期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.1； 五年影响因子：4.2 ）

ISSN： 1050-4648

年卷期： 2024 年 153 卷

页码：

收录情况： SCI

摘要： IL-26 is a crucial inflammatory cytokine that participates in defending host cells against infections. We initially cloned and identified the cDNA sequences of interleukin (IL)-26 in channel catfish (Ictalurus punctatus). The open reading frame (ORF) of IpIL-26 was 537 bp in length, encoding 178 amino acids (aa). Constitutive expression of IpIL-26 was observed in tested tissues, with the highest level found in the gill and spleen. To explore the function of IpIL-26 in channel catfish, different stimuli were used to act on both channel catfish and channel catfish kidney cells (CCK). The expression of IpIL-26 could be up-regulated by bacteria and viruses in multiple tissues. In vitro, recombinant IpIL-26 (rIpIL-26) could induce the expression levels of inflammatory cytokines such as TNF-alpha, IL1(3, IL-6, IL-20, and IL-22 playing vital roles in defending the host against infections. Our results demonstrated that IpIL-26 might be an essential cytokine, significantly affecting the immune defense of channel catfish against pathogen infections.

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