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Protective role of Th17 cells in pulmonary infection

机译:Th17细胞在肺部感染中的保护作用

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Th17 cells are characterized as preferential producer of interleukins including IL-17A, IL-17F, IL-21 and IL-22. Corresponding receptors of these cytokines are expressed on number of cell types found in the mucosa, including epithelial cells and fibroblasts which constitute the prime targets of the Th17-associated cytokines. Binding of IL-17 family members to their corresponding receptors lead to modulation of antimicrobial functions of target cells including alveolar epithelial cells. Stimulated alveolar epithelial cells produce antimicrobial peptides and are involved in granulepoesis, neutrophil recruitment and tissue repair. Mucosal immunity mediated by Th17 cells is protective against numerous pulmonary pathogens including extracellular bacterial and fungal pathogens. This review focuses on the protective role of Th17 cells during pulmonary infection, highlighting subset differentiation, effector cytokines production, followed by study of the binding of these cytokines to their corresponding receptors, the subsequent signaling pathway they engender and their effector role in host defense. (C) 2016 Elsevier Ltd. All rights reserved.
机译:Th17细胞被表征为白介素的优先生产者,包括IL-17A,IL-17F,IL-21和IL-22。这些细胞因子的相应受体在粘膜中发现的多种细胞类型上表达,包括构成Th17相关细胞因子主要靶标的上皮细胞和成纤维细胞。 IL-17家族成员与其相应受体的结合导致靶细胞包括肺泡上皮细胞的抗微生物功能的调节。受刺激的肺泡上皮细胞产生抗菌肽,并参与颗粒运动,中性粒细胞募集和组织修复。 Th17细胞介导的粘膜免疫力可抵抗多种肺部病原体,包括细胞外细菌和真菌病原体。这篇综述着重于Th17细胞在肺部感染过程中的保护作用,强调了亚群的分化,效应细胞因子的产生,然后研究了这些细胞因子与其相应受体的结合,随后产生的信号通路及其在宿主防御中的效应作用。 (C)2016 Elsevier Ltd.保留所有权利。

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