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Modulation of B cell responses by Toll-like receptors

机译:Toll样受体对B细胞反应的调节

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B lymphocytes are well known because of their key role in mediating humoral immune responses. Upon encounter with antigen and on cognate interaction with T cells, they differentiate into antibody-secreting plasma cells, which are critical for protection against a variety of pathogens. In addition to their antibody-production function, B cells are efficient antigen-presenting cells and express a variety of pathogen recognition receptors (PRRs). Engagement of these PRRs with their respective ligands results in cytokine and chemokine secretion and the upregulation of co-stimulatory molecules. These events constitute innate immune responses. Toll-like receptor (TLR) activation provides a third signal for B cell activation and is essential for optimal antigen-specific antibody responses. In some situations, TLR activation in B cells can result in autoimmunity. The purpose of this review is to provide some insights into the way that TLRs influence innate and adaptive B cell responses.
机译:B淋巴细胞由于其在介导体液免疫反应中的关键作用而众所周知。遇到抗原并与T细胞发生同源相互作用后,它们会分化成分泌抗体的浆细胞,这对于抵抗多种病原体至关重要。除了其抗体产生功能外,B细胞还是有效的抗原呈递细胞,并表达多种病原体识别受体(PRR)。这些PRR与它们各自的配体的结合导致细胞因子和趋化因子的分泌以及共刺激分子的上调。这些事件构成先天免疫反应。 Toll样受体(TLR)激活为B细胞激活提供了第三种信号,并且对于最佳的抗原特异性抗体反应至关重要。在某些情况下,B细胞中的TLR激活可导致自身免疫。这篇综述的目的是提供一些有关TLR影响先天和适应性B细胞反应的方式的见解。

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