生发中心的树突状细胞可以内吞这种抗原物质并将其呈递给T 细胞，从而激活它们。
Dendritic cells in the germinal center may endocytose such antigenic material and present it to T cells, activating them.
这样他制造了一个抗原呈递细胞的副本，这个颗粒可以反复的激活抑制性T细胞，使他们增殖并杀死真正的抗原呈递细胞。
In doing so, he created an APC doppelganger that could repeatedly activate the weak t cells, causing them to proliferate and kill the real APCs.
这种药物可能有助于防止超级抗原进一步激活T细胞。
This could help prevent further T-cell activation by the superantigens.
细菌产生的强效毒素则成为引发免疫系统亢进的超级抗原。超级抗原先激活血液中的免疫系统产生大量T细胞。
This is triggered by superantigens, which are powerful toxins produced by the bacteria and which activate a large number of the human immune system's T-cells in the bloodstream.
目的：探讨IL-2激活的急性白血病骨髓细胞抗原表达的变化及其在临床治疗上的意义分析。
Objective:To study acute leukemia bone marrow cell antigen expression changes activated by interleukin-2(IL-2) and its significance on clinical treatment.
方法：用APAAP免疫酶标法检测10例经il - 2激活的急性白血病患者骨髓细胞相关抗原标记及活化过程中的变化。
Methods: 10 patients with acute leukemia were selected and their bone marrow cell related antigen labeling and activation process changes activated by IL-2 were detected by APAAP method.
未成熟T细胞通过TCR-CD3 复合物与自身抗原接合激活上述过程可能与克隆清除的形成机制及自我耐受有关。
Activation of this process in immature T cell by the bindng of the TCR CD3 to self antigens may therefor be the mechanism which produces clonal deletion and consequently self tolerance.
结论经卵巢癌细胞冻融抗原负载dc激活的CTL在体外具有更强的增殖能力和杀伤卵巢癌细胞的作用。
Conclusion CTL activated by DC loaded with freeze-thaw ovarian carcinoma antigen has a higher proliferative ability and effective cytotoxicity against ovarian carcinoma cells in vitro.
结果陈株、H8205、R 22 3株病毒抗原，可以直接激活补体C_3，电泳后呈现典型降解峰，而ALC96与正常细胞抗原则均为阴性。
The results showed that Chen, H8205, R22 strains antigens can directly activate C_3, typical degradative peak was found after electrophoresis. But ALC96 and normal antigen were negative.
树突状细胞是目前发现的抗原递呈功能最强的专职抗原递呈细胞，也是唯一能够激活初始免疫应答的APC，在对肿瘤产生主动免疫上起着重要的作用。
Dendritic cells is a function of the recursive antigen found most full-time antigen oral cells, also can activate the immune response, the initial APC on immunization tumors plays an important role.
静止T淋巴细胞经过抗原刺激活化后，表现出一系列的特征，如细胞膜表面活化分子的表达、细胞分裂和产生细胞因子等。
After being stimulated, the activated t lymphocytes may show some function characteristics, such as activation molecule expression on cell surface, cell proliferation, cytokine expression, and so on.
但最近的研究表明，超抗原激活t细胞还有一条旁路信号途径。
However, recent research shows that SAgs also activate an alternative signaling pathway in t cells.
但最近的研究表明，超抗原激活t细胞还有一条旁路信号途径。
However, recent research shows that SAgs also activate an alternative signaling pathway in t cells.
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