Mushroom lectin overcomes hepatitis B virus tolerance via TLR6 signaling.

Mushroom lectin overcomes hepatitis B virus tolerance via TLR6 signaling.
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蘑菇凝集素通过 TLR6 信号传导克服乙型肝炎病毒耐受性

DOI:
10.1038/s41598-017-06261-5
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发表时间:
2017-07-19
期刊:
影响因子:
4.6
通讯作者:
Kang Y
Kang Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
He M;Su D;Liu Q;Gao W;Kang Y

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目前,慢性乙型肝炎病毒(HBV)感染仍然是世界范围内一个严重的公共卫生问题。重组HBV疫苗作为一种预防HBV感染的策略,产生较高的抗体水平,但在慢性HBV感染治疗中不能有效激活先天免疫和细胞免疫。蘑菇凝集素是一种天然的活性蛋白,具有重要的生物学功能。然而,人们对蘑菇凝集素的免疫机制知之甚少。本文报道了平菇凝集素(pleurotus ostreatus, POL)通过激活树突状细胞toll样受体6信号通路刺激先天反应。随后,POL增强了HBV特异性抗体水平和滤泡辅助性T细胞反应,克服了转基因小鼠的HBV耐受性。该研究提示了POL作用于免疫应答的新机制和打破HBV耐受性的治疗方法。
Currently, chronic hepatitis B virus (HBV) infection remains a serious public health problem in the world. Recombinant HBV vaccine, as a preventive strategy against HBV infection, generates high antibody level, but it is not effective to activate innate and cellular immunity for chronic HBV infection therapy. Lectins from mushroom are natural and active proteins which have been shown important biological functions. However, little is known about the immunological mechanism engaged by mushroom lectins. Here we report that, lectin fromPleurotus ostreatus(POL) stimulated innate response by activating Toll-like receptor 6 signal pathway of dendritic cells. Subsequently POL enhanced HBV specific antibody level and follicular helper T cells response which overcame HBV tolerance in transgenic mice. This study suggests a novel mechanism for POL acting on immune response and a therapeutic approach to break HBV tolerance.
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