Finally, it's the presence of antigen that determines how t cells migrate and interact with the tumor cells.

最后一点，抗原的存在与否决定了T细胞如何迁移及能否作用于肿瘤细胞。

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Objective: to explore the expression characteristics of intracellular cytokines and surface costimulatory molecules in embryo antigen tolerant t cells transferred in pregnant mice.

目的：分析过继转输的小鼠胚胎抗原耐受T细胞内细胞因子及细胞表面协同刺激分子的表达特征。

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Clone and express bradyzoite antigen 1(BAG1) gene of T. gondii, and analyze the immunoreactivity of the recombinant product.

克隆与表达弓形虫缓殖子期特异性抗原1（BAG1）的基因，并分析重组抗原的免疫反应性。

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When these CD8 T-cells see your MHC1 together with an antigen that doesn't belong in you, it creates an immune response.

当CD8 T细胞识别MHC1时,同时识别了不属于你的抗原,由此产生免疫反应

耶鲁公开课 - 生物医学工程探索课程节选

The antibody that they stimulate is antibody that's specific to this antigen that was presented earlier.

这些由辅助性T细胞,刺激增殖产生的抗体是,对应之前出现的抗原而产生的

耶鲁公开课 - 生物医学工程探索课程节选

In the case of the helper cells they stimulate a specific population of B-cells to mature into antibody producing cells, and that antibody is generated against the antigen that stimulated it.

以辅助性T细胞为例,辅助性T细胞刺激特定的B细胞,使这些细胞成长为抗体分泌细胞,抗体分泌细胞产生大量的抗体,以消灭大量增殖的抗原

耶鲁公开课 - 生物医学工程探索课程节选

Pfizer's drug tremelimumab and Bristol-Myers Squibb's ipilimumab are antibodies to a protein called CTLA-4 (cytotoxic T-lymphocyte antigen-4) that acts as an emergency brake to prevent killer T cells from attacking healthy tissue.

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Both drugs turn off a natural brake on immune system activity called CTLA4 (cytotoxic T-lymphocyte antigen 4).

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However, before the alarm can be sounded in this way, proteins on the surface of the antigen-presenting cell and the T cell must bind together in what is called a cellular handshake.

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