树突状细胞(dendritic cells,DCs)是体内作用最强的抗原递呈细胞,成熟DCs能够加工和递呈各种抗原,并通过一些固有免疫受体如Toll样受体识别病原微生物表达的模式分子,以及通过主要组织相容性抗原复合物(MHC)和共刺激分子的表达,引起初始T细胞的活化、增殖。然而,越来越多的证据 Dendritic cells (DCs) are the strongest antigen-presenting cells in the body. Mature DCs are capable of processing and presenting various antigens and recognizing the expression pattern of pathogenic microorganisms via innate immune receptors such as Toll-like receptors Molecules, and through the expression of major histocompatibility antigen complexes (MHC) and costimulatory molecules, cause the activation and proliferation of naive T cells. However, more and more evidence