首页> 外文期刊>Clinical immunology: The official journal of the Clinical Immunology Society >The role of interleukin-10 in the differential expression of interleukin-12p70 and its beta2 receptor on patients with active or treated paracoccidioidomycosis and healthy infected subjects.
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The role of interleukin-10 in the differential expression of interleukin-12p70 and its beta2 receptor on patients with active or treated paracoccidioidomycosis and healthy infected subjects.

机译:白细胞介素10在活跃或治疗过的球虫病和健康感染患者中白细胞介素12p70及其β2受体差异表达中的作用。

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摘要

Paracoccidioidomycosis patients present an antigen-specific Th1 immunosuppression. To better understand this phenomenon, we evaluated the interleukin (IL)-12 pathway by measuring IL-12p70 production and CD3+ T cell expression of the IL-12 receptor (IL-12R)beta1/beta2 chains, induced with the main fungus antigen (gp43) and a control antigen, from Candida albicans (CMA). We showed that gp43-induced IL-12p70 production and IL-12Rbeta2 expression were significantly decreased in acute and chronic patients as compared to healthy subjects cured from PCM or healthy infected subjects from endemic areas. Interestingly, the healthy infected subjects had higher gp43-induced IL-12p70 production and beta2 expression than the cured subjects. The addition of a neutralizing anti-IL-10 antibody to the cultures increased IL-12p70 levels and beta2 expression in acute and chronic patients to levels observed in cured subjects. Conversely, addition of the cytokine IL-10 strongly inhibited both parameters in the latter group.In conclusion, we have shown that paracoccidioidomycosis-related Th1 immunosuppression is associated with down-modulation of the IL-12 pathway, that IL-10 may participate in this process, and that patients cured from paracoccidioidomycosis may not fully recover their immune responsiveness.
机译:副球菌病患者表现出抗原特异性Th1免疫抑制。为了更好地了解这种现象,我们通过测量主要真菌抗原诱导的IL-12受体(IL-12R)beta1 / beta2链的IL-12p70产生和CD3 + T细胞表达来评估白介素(IL)-12途径( gp43)和对照抗原,来自白色念珠菌(CMA)。我们显示,与从PCM治愈的健康受试者或地方病地区的健康感染受试者相比,急性和慢性患者中gp43诱导的IL-12p70产生和IL-12Rbeta2表达显着降低。有趣的是,健康感染的受试者比治愈的受试者具有更高的gp43诱导的IL-12p70产生和beta2表达。向培养物中添加中和性抗IL-10抗体可使急性和慢性患者的IL-12p70水平和beta2表达增加至治愈对象中观察到的水平。相反,在后一组中加入细胞因子IL-10会强烈抑制这两个参数。总而言之,我们已经表明,与球孢子菌病相关的Th1免疫抑制与IL-12途径的下调有关,IL-10可能参与此过程以及从副球菌类真菌病治愈的患者可能无法完全恢复其免疫应答。

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