Inflammation and TCR signal strength determine the breadth of the T cell response in a bim-dependent manner.
Inflammation and TCR signal strength determine the breadth of the T cell response in a bim-dependent manner.
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DOI:
10.4049/jimmunol.1302289
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发表时间:
2014-01-01
期刊:
影响因子:
--
通讯作者:
Prlic M
中科院分区:
文献类型:
--
作者:
Zehn D;Roepke S;Weakly K;Bevan MJ;Prlic M
Generating a diverse T-cell memory population through vaccination is a promising strategy to overcome pathogen epitope variability and tolerance to tumor antigens. The effector and memory pool becomes broad in TCR diversity by recruiting high and low affinity T-cells. We wanted to determine which factors dictate whether a memory T-cell pool has a broad vs. focused repertoire. We find that inflammation increases the magnitude of low and high affinity T-cell responses equally well, arguing against a synergistic effect of TCR and inflammatory signals on T cell expansion. We dissect the differential effects of TCR signal strength and inflammation and demonstrate that they control effector T-cell survival in a bim-dependent manner. Importantly, bim-dependent cell death is overcome with a high antigen dose in the context of an inflammatory environment. Our data define the framework for the generation of a broad T-cell memory pool to inform future vaccine design.
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DOI:
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DOI:
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发表时间:
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30.5
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