Activation of Human Dendritic Cells by Ascophyllan Purified from Ascophyllum nodosum

Activation of Human Dendritic Cells by Ascophyllan Purified from Ascophyllum nodosum
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从泡叶藻中纯化的泡叶素对人树突状细胞的激活

DOI:
10.3390/md17010066
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发表时间:
2019-01
期刊:
影响因子:
5.4
通讯作者:
Jin Jun O
Jin Jun O
中科院分区:
医学2区
文献类型:
--
作者:
Zhang Wei;Kwak Minseok;Park Hae Bin;Okimura Takasi;Oda Tatsuya;Lee Peter Chang Whan;Jin Jun O

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在我们之前的研究中,我们发现从泡叶藻处理中纯化的泡叶素可促进小鼠体内树突状细胞(DC)活化,进一步诱导抗原特异性免疫反应,并在小鼠中具有抗癌作用。然而,泡叶聚糖在人体免疫细胞中的作用尚未得到研究,特别是在激活人单核细胞来源的 DC (MDDC) 和人外周血 DC (PBDC) 方面。我们发现,泡叶素治疗可诱导 MDDC 的形态变化,并上调共刺激分子以及主要组织相容性复合物 I 类 (MHC I) 和 MHC II 的表达。此外,MDDC 经泡叶素处理后,培养基中的促炎细胞因子水平也显着增加。此外,泡叶素促进ERK、p38和JNK信号通路的磷酸化,抑制p38几乎完全抑制泡叶素诱导的MDDC活化。最后,泡叶素处理诱导 BDCA1 和 BDCA3 PBDC 的激活。因此,这些数据表明泡叶多糖可以用作人类的免疫刺激剂。
In our previous study, we showed that ascophyllan purified from Ascophyllum nodosum treatment promotes mouse dendritic cell (DC) activation in vivo, further induces an antigen-specific immune response and has anticancer effects in mice. However, the effect of ascophyllan has not been studied in human immune cells, specifically in terms of activation of human monocyte-derived DCs (MDDCs) and human peripheral blood DCs (PBDCs). We found that the treatment with ascophyllan induced morphological changes in MDDCs and upregulated co-stimulatory molecules and major histocompatibility complex class I (MHC I) and MHC II expression. In addition, pro-inflammatory cytokine levels in culture medium was also dramatically increased following ascophyllan treatment of MDDCs. Moreover, ascophyllan promoted phosphorylation of ERK, p38 and JNK signaling pathways, and inhibition of p38 almost completely suppressed the ascophyllan-induced activation of MDDCs. Finally, treatment with ascophyllan induced activation of BDCA1 and BDCA3 PBDCs. Thus, these data suggest that ascophyllan could be used as an immune stimulator in humans.
DOI: 10.3389/fimmu.2014.00255
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影响因子: 7.3
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