Gift of life: APC to T cell telomere transfer Some T cells elongate their telomeres by acquiring telomeric DNA in extracellular vesicles from antigen-presenting cells, which rescues them from senescence and supports long-term immune memory.
Antigen presenting cell The activation of helper T cells requires that the T cells and the APC be derived from animals (mice) syngeneic in region I of the MHC, and the production of the lymphokine, interleukin-1 (IL-1) and also family member, CD80. Macrophages are rich in lysosomes and...
抗原呈递细胞(antigen presenting cell,APC): 指能够捕捉、加工处置抗原,并将抗原呈递给抗原特异性淋巴细胞的一类免疫细胞。要紧包括单核吞噬细胞、树突状细胞和B细胞等。结果一 题目 抗原呈递细胞〔Antigen presenting cell,APC〕 答案 抗原呈递细胞(antigen presenting cell,APC): 指能够捕获、加工处理抗原,并将抗原呈...
百度试题 结果1 题目antigen-presenting cell, APC 相关知识点: 试题来源: 解析 抗原提呈细胞:能够摄取抗原物质、加工处理,并以抗原肽信息递呈给T细胞识别的一类细 胞,单核巨噬细胞、树突状细胞、B细胞为专职APG 反馈 收藏
autologous proteins in situations of autoimmunity. Herein, we focus on the resident APC of theislets of Langerhansand their role inautoimmune diabetes. The intra-islet APC are central cells indiabetogenesisby presenting beta cell derived antigens and by modulating the localization ofT cellsinto the...
This chapter discusses selected scavenger and lectinlike antigen-presenting cell (APC) receptors in relation to innate immunity to illustrate principles and provide questions for further study. Genes for the pattern recognition receptors (PRRs) of the innate immune system have become fixed in the germ...
The meaning of ANTIGEN-PRESENTING CELL is any of various cells (such as a dendritic cell, macrophage, or B cell) that take up and process an antigen into a peptide fragment which when displayed at the cell surface in combination with a molecule of the ma
antigen-presenting cell, APC 相关知识点: 试题来源: 解析 以TD抗原为例,简述 CD8+TC细胞介导的免疫应答的基本过程。 1) T细胞对抗原的识别:内源性抗原(病毒感染的细胞或肿瘤细胞)被 APC处理, 以抗原肽-MHC-I复合物递呈给 CD8+T识别。(3分) 2) T细胞活化、增殖、分化:双信号( TCR与抗原肽-MHC复合物...
百度试题 结果1 题目抗原提呈细胞antigen presenting cell;A PC 相关知识点: 试题来源: 解析 能摄取、加工、处理抗原并将抗原信息提呈给T淋巴细胞的这一类细胞称抗原提呈细胞APC;在机体的免疫识别、免疫应答和免疫调节中起重要作用..反馈 收藏
maintain and shorten the APC–T-cell interface down to 10 nm. Our results suggest that the axial distance of the contact zone is critical in T-cell activation, presumably by modulating protein reorganization and mechanical force. Notably, we observe the promotion of T-cell signalling by short...