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Dendritic Cells and Macrophages: Same Receptors but Different Functions

机译:树突状细胞和巨噬细胞:相同的受体,但功能不同

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Dendritic cells (DCs) and macrophages differently contribute to the generation of coordinated immune system responses against infectious agents. They interact with microbes through germline-encoded pattern-recognition receptors (PRRs), which recognize molecular patterns expressed by various microorganisms. Upon antigen binding, PRRs instruct DCs for the appropriate priming of natural killer cells, followed by specific T-cell responses. Once completed the effector phase, DCs reach the terminal differentiation stage and eventually die by apoptosis. By contrast, following antigen recognition, macrophages initiate first the inflammatory process and then switch to an anti-inflammatory phenotype for the restoration of tissue homeostasis. In this review we will focus on the comparison of the divergent responses of DCs and macrophages to microbial stimuli and in particular to lipopolysaccharide (LPS).
机译:树突状细胞(DC)和巨噬细胞以不同方式促进针对感染因子的协同免疫系统反应。它们通过种系编码的模式识别受体(PRR)与微生物相互作用,该受体识别各种微生物表达的分子模式。抗原结合后,PRR会指导DC适当启动天然杀伤细胞,然后再进行特异性T细胞反应。一旦完成效应子阶段,DC到达终末分化阶段并最终因凋亡而死亡。相比之下,在抗原识别之后,巨噬细胞首先启动炎症过程,然后切换至抗炎症表型以恢复组织稳态。在这篇综述中,我们将着重比较DC和巨噬细胞对微生物刺激,特别是对脂多糖(LPS)的不同反应。

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