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首页> 外文期刊>Cytokine >Predominance of IL-10 and TGF-β production from the mouse macrophage cell line, RAW264.7, in response to crude antigens from Clonorchis sinensis
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Predominance of IL-10 and TGF-β production from the mouse macrophage cell line, RAW264.7, in response to crude antigens from Clonorchis sinensis

机译:小鼠巨噬细胞RAW264.7对IL-10和TGF-β产生的响应主要来自中华支睾吸虫的粗抗原

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摘要

Parasitic helminths are well-known to have the ability to modulate host immune responses. In this study, we investigated the fundamental immunoregulatory mechanism of the liver fluke Clonorchis sinensis (C. sinensis) using a murine macrophage RAW 264.7 (RAW) cell line and mouse bone marrow derived macrophages (BMDMs). We found that C. sinensis crude antigen (CA) is able to differentiate macrophage RAW cells into dendritic-like cells that can be detected by morphological observations. In addition, CA induces prominent secretion of anti-inflammatory cytokines such as IL-10 and TGF-β; however, we did not observe changes in cell surface markers that are involved in antigen recognition, antigen presentation, and T cell activation. Additionally, CA treatment induced ERK and JNK phosphorylation, and unexpectedly, elevated levels of IL-10 and TGF-β were inhibited by the addition of an ERK-specific inhibitor. Taken together, these data demonstrate that CA from C. sinensis may modulate host immune responses by upregulating anti-inflammatory cytokines via the regulation of ERK.
机译:众所周知,寄生虫蠕虫具有调节宿主免疫反应的能力。在这项研究中,我们调查了使用小鼠巨噬细胞RAW 264.7(RAW)细胞系和小鼠骨髓衍生巨噬细胞(BMDMs)对中华绒螯蟹(C. sinensis)肝吸虫的基本免疫调节机制。我们发现中华梭菌粗抗原(CA)能够将巨噬细胞RAW细胞分化为树突状细胞,可以通过形态学观察来检测。另外,CA诱导抗炎细胞因子如IL-10和TGF-β的显着分泌。然而,我们没有观察到与抗原识别,抗原呈递和T细胞活化有关的细胞表面标志物的变化。此外,CA处理可诱导ERK和JNK磷酸化,出乎意料的是,通过添加ERK特异性抑制剂可抑制IL-10和TGF-β的升高水平。综上所述,这些数据表明,中华绒螯蟹的CA可能通过上调ERK调节抗炎细胞因子,从而调节宿主的免疫反应。

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