Plasmacytoid dendritic cells initiate a complex chemokine and cytokine network and are a viable drug target in chronic HCV patients.

Plasmacytoid dendritic cells initiate a complex chemokine and cytokine network and are a viable drug target in chronic HCV patients.
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浆细胞样树突状细胞启动复杂的趋化因子和细胞因子网络,是慢性HCV患者的可行药物靶标。

DOI:
10.1084/jem.20070814
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发表时间:
2007-10-01
影响因子:
15.3
通讯作者:
Albert, Matthew L.
Albert, Matthew L.
中科院分区:
医学1区
文献类型:
--
作者:
Decalf, Jeremie;Fernandes, Sandrine;Longman, Randy;Ahloulay, Mina;Audat, Francoise;Lefrerre, Francois;Rice, Charles M.;Pol, Stanislas;Albert, Matthew L.

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浆细胞样树突状细胞(pDC)是专业的I型干扰素(IFN)产生细胞,并且在活化时它们运输到淋巴器官,在那里它们桥接先天性免疫和适应性免疫。使用多分析物分析(MAP),我们已经绘制了响应于pDC活化而产生的关键趋化因子和细胞因子,考虑了自分泌IFN的作用以及对其他先天性细胞(例如,单核细胞和常规DC)。有趣的是,我们确定了四个不同的细胞因子/趋化因子环Toll样受体参与启动。最后,我们将这种分析方法应用于慢性丙型肝炎患者pDC活性的研究。基于pDC在新鲜血液中的活化状态、感染性病毒粒子的激动活性的缺乏、一旦刺激就产生大量细胞因子/趋化因子以及pDC对其他PBMC的直接影响,我们得出结论,来自丙型肝炎病毒(HCV)感染个体的pDC是功能齐全的,并且确实是可行的药物靶标。总之,这项研究提供了使用MAP技术表征细胞因子网络的见解,并强调了一种罕见的细胞类型如何整合其他炎症细胞的激活。此外,这项工作将有助于评估pDC激动剂在慢性HCV感染等疾病中的治疗应用。
Plasmacytoid dendritic cells (pDCs) are the professional type I interferon (IFN)-producing cells, and upon activation they traffic to lymph organs, where they bridge innate and adaptive immunity. Using multianalyte profiling (MAP), we have mapped the key chemokines and cytokines produced in response to pDC activation, taking into consideration the role of autocrine IFN, as well as paracrine effects on other innate cells (e.g., monocytes and conventional DCs). Interestingly, we identify four distinct cytokine/chemokine loops initiated by Toll-like receptor engagement. Finally, we applied this analytic approach to the study of pDC activity in chronic hepatitis C patients. Based on the activation state of pDCs in fresh blood, the lack of agonistic activity of infectious virions, the production of a broad array of cytokines/chemokines once stimulated, and the direct effects of pDCs on other PBMCs, we conclude that the pDCs from hepatitis C virus (HCV)-infected individuals are fully functional and are, indeed, a viable drug target. In sum, this study provides insight into the use of MAP technology for characterizing cytokine networks, and highlights how a rare cell type integrates the activation of other inflammatory cells. Furthermore, this work will help evaluate the therapeutic application of pDC agonists in diseases such as chronic HCV infection.
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