Shouts, whispers and the kiss of death: directional secretion in T cells.

Shouts, whispers and the kiss of death: directional secretion in T cells.
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DOI:
10.1038/ni.f.215
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发表时间:
2008-10
期刊:
影响因子:
30.5
通讯作者:
--
中科院分区:
医学1区
文献类型:
--
作者:

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T细胞使用分泌的可溶性因子进行高度特异性的细胞间通讯和靶向细胞杀伤。这种特异性首先通过T细胞受体介导的识别由适当的抗原呈递细胞展示的肽和主要组织相容性复合物的复合物,然后通过细胞因子和裂解因子定向分泌到T细胞和抗原呈递细胞之间的免疫突触中来实现。研究已经开始探索这种突触分泌的分子基础,并且还表明T细胞通过远离突触的多方向途径释放趋化因子和某些炎症因子。因此,分泌模式似乎是针对分泌分子的预期功能而定制的。
T cells use secreted soluble factors for highly specific intercellular communication and targeted cell killing. This specificity is achieved first through T cell receptor–mediated recognition of complexes of peptide and major histocompatibility complex displayed by appropriate antigen-presenting cells and then by the directed secretion of cytokines and lytic factors into the immunological synapse between the T cell and antigen-presenting cell. Studies have begun to probe the molecular basis for this synaptic secretion and have also shown that T cells release chemokines and certain inflammatory factors through a multidirectional pathway directed away from the synapse. Thus, the mode of secretion seems to be tailored to the intended function of the secreted molecule.
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