Ectopically Expressed IL-34 Can Efficiently Induce Macrophage Migration to the Liver in Zebrafish.

Ectopically Expressed IL-34 Can Efficiently Induce Macrophage Migration to the Liver in Zebrafish.
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异位表达的 IL-34 可有效诱导斑马鱼巨噬细胞迁移至肝脏

DOI:
10.1089/zeb.2018.1685
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发表时间:
2019-03
期刊:
影响因子:
2
通讯作者:
Xu Jin (共同通讯作者)
Xu Jin (共同通讯作者)
中科院分区:
生物学4区
文献类型:
--
作者:
Jiang Yunyun;Chen Jiahao;Yen Kuangyu(共同通讯作者);Xu Jin (共同通讯作者)

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白细胞介素-34 (IL-34)是一种已知的细胞因子,在巨噬细胞的存活、增殖和分化中起重要作用。在以往的研究中,IL-34可以通过syndecan-1或focal adhesion kinase和胞外信号相关激酶1和2途径诱导巨噬细胞迁移。这些研究主要集中在体外实验,但IL-34对巨噬细胞体内迁移的影响尚不清楚。在我们的研究中,我们通过在斑马鱼表皮细胞或肝细胞中过表达IL-34,人工诱导巨噬细胞而非中性粒细胞在皮肤或肝脏中富集。实时成像显示肝脏中巨噬细胞的富集是由于巨噬细胞被IL-34直接吸引所致。我们的研究结果表明,异位表达的IL-34可以诱导巨噬细胞在体内向肝脏迁移。
Interleukin-34 (IL-34) is a known cytokine that plays an important role in the survival, proliferation, and differentiation of macrophages. In previous studies, IL-34 can induce macrophage migration through syndecan-1 or focal adhesion kinase and extracellular signal-related kinase 1 and 2 pathway. These studies mainly focused on in vitro experiments, but the effect of IL-34 on macrophage migration in vivo is less understood. In our study, we artificially induced macrophage, but not neutrophil, enrichment in the skin or liver by overexpressing IL-34 in epidermal cells or hepatocytes in zebrafish. Live imaging showed that the enrichment of macrophages in the liver is due to the direct attraction of macrophages by IL-34. Our results demonstrated that ectopically expressed IL-34 can induce macrophage migration to liver in vivo.
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