New insights into the T cell synapse from single molecule techniques.

New insights into the T cell synapse from single molecule techniques.
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从单分子技术对 T 细胞突触的新见解。

DOI:
10.1038/nri3066
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发表时间:
2011-09-09
期刊:
Nature reviews. Immunology
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T细胞活化取决于T细胞受体(TCR)通过T细胞和抗原呈递细胞(APC)之间的突触中的肽-MHC复合物的细胞外连接、信号传导复合物与活化的T细胞(LAT)的衔接蛋白接头的组装以及丝状肌动蛋白(f-actin)依赖性TCR簇的形成。由于新技术的出现,这些领域的最新进展使我们不得不重新思考我们的假设,并考虑一些激进的新模型。主题包括受体相互作用参数管理T细胞反应和LAT被招募到TCR信号机制。这是T细胞生物学的一个激动人心的时刻,成像和基因组学的进一步创新可能会导致对T细胞如何激活的更深入了解。
T cell activation depends upon extracellular ligation of the T cell receptor (TCR) by peptide–MHC complexes in a synapse between the T cell and an antigen presenting cell (APC), assembly of signalling complexes with the adaptor protein linker of activated T cells (LAT) and filamentous actin (f-actin) dependent TCR cluster formation. Recent progress in each of these areas, made possible by the emergence of new techniques, has forced us to rethink our assumptions and consider some radical new models. The topics include the receptor interaction parameters governing T cell responses and the mechanism by which LAT is recruited to the TCR signalling machinery. This is an exciting time in T cell biology and further innovation in imaging and genomics is likely to lead to a greater understanding of how T cells are activated.
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