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Investigating the Role of BATF3 in Grass Carp (Ctenopharyngodon idella) Immune Modulation: A Fundamental Functional Analysis.


ABSTRACT: Basic leucine zipper transcription factor ATF-like (BATF)-3, belonging to activator protein 1 (AP-1) superfamily transcription factors, is essential for homeostatic development of CD8?? classical dendritic cells activating CD8 T-cell responses to intracellular pathogens. In this study, the characteristics and cDNA cloning of the CiBATF3 molecule were described in grass carp (Ctenopharyngodon idella). CiBATF3 had abundant expression in immune-related organizations, including liver, spleen and gill, and grass carp reovirus (GCRV) infection had significantly changed its expression level. After Ctenopharyngodon idella kidney (CIK) cells were challenged with pathogen-associated molecular patterns (PAMPs), polyinosinic:polycytidylic acid (poly(I:C)) stimulation induced higher mRNA levels of CiBATF3 than that of lipopolysaccharide (LPS). Subcellular localization showed that CiBATF3-GFP was entirely distributed throughout cells and nuclear translocation of CiBATF3 was found after poly(I:C) treatment. Additionally, the interaction between CiBATF3 and interleukin 10 (IL-10) was proven by bimolecular fluorescence complementation (BiFC) system. The small interfering RNA (siRNA)-mediated CiBATF3 silencing showed that the mRNA of CiBATF3 and its downstream genes were down-regulated in vitro and in vivo. CiBATF3 played a negative regulatory role in the transcriptional activities of AP-1 and NF-?B reporter gene. In summary, the results may provide valuable information on fundamental functional mechanisms of CiBATF3.

SUBMITTER: Zhu D 

PROVIDER: S-EPMC6479329 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Investigating the Role of BATF3 in Grass Carp (<i>Ctenopharyngodon idella</i>) Immune Modulation: A Fundamental Functional Analysis.

Zhu Denghui D   Huang Rong R   Fu Peipei P   Chen Liangming L   Luo Lifei L   Chu Pengfei P   He Libo L   Li Yongming Y   Liao Lanjie L   Zhu Zuoyan Z   Wang Yaping Y  

International journal of molecular sciences 20190404 7


Basic leucine zipper transcription factor ATF-like (BATF)-3, belonging to activator protein 1 (AP-1) superfamily transcription factors, is essential for homeostatic development of CD8α⁺ classical dendritic cells activating CD8 T-cell responses to intracellular pathogens. In this study, the characteristics and cDNA cloning of the <i>CiBATF3</i> molecule were described in grass carp (<i>Ctenopharyngodon idella</i>). <i>CiBATF3</i> had abundant expression in immune-related organizations, including  ...[more]

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