Popi Ana F, Longo-Maugéri Ieda M, Mariano Mario
Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo , São Paulo , Brazil.
Front Immunol. 2016 Apr 11;7:138. doi: 10.3389/fimmu.2016.00138. eCollection 2016.
The role of B cells as antigen-presenting cells (APCs) has been extensively studied, mainly in relation to the activation of memory T cells. Considering the B cell subtypes, the role of B-1 cells as APCs is beginning to be explored. Initially, it was described that B-1 cells are activated preferentially by T-independent antigens. However, some reports demonstrated that these cells are also involved in a T-dependent response. The aim of this review is to summarize information about the ability of B-1 cells to play a role as APCs and to briefly discuss the role of the BCR and toll-like receptor signals in this process. Furthermore, some characteristics of B-1 cells, such as natural IgM production and phagocytic ability, could interfere in the participation of these cells in the onset of an adaptive response.
B细胞作为抗原呈递细胞(APC)的作用已得到广泛研究,主要涉及记忆T细胞的激活。考虑到B细胞亚型,B-1细胞作为APC的作用正开始被探索。最初,有人描述B-1细胞优先被非T细胞依赖性抗原激活。然而,一些报告表明这些细胞也参与T细胞依赖性反应。本综述的目的是总结关于B-1细胞作为APC发挥作用的能力的信息,并简要讨论B细胞受体(BCR)和Toll样受体信号在此过程中的作用。此外,B-1细胞的一些特性,如天然IgM的产生和吞噬能力,可能会干扰这些细胞参与适应性反应的起始过程。