To study dysfunction of activated T cell in peripheral blood and make clear its role on pathogenesis in patients with recurrent tonsillitis(RT).
目的探讨反复扁桃腺炎（RT）患儿T细胞活化功能障碍情况，为分析RT的病因和发病机制提供理论依据。
In addition to the expression of antigen on its surface, activated t cell releases various kinds of active substances, including cytokines, to regulate series of immunological responses.
细胞活化后除了表达细胞表面活化抗原外，主要释放多种活性物质发挥免疫调节功能，细胞因子是其中重要的一种。
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.
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。
In contrast to the weaker effect induced by the activated astrocytes, the non-activated astrocytes had a significant inhibitory effect on PHA-stimulated T cell proliferation.
非活化的星形胶质细胞对PHA刺激活化的T细胞增殖具有明显的抑制作用，而活化的星形胶质细胞的抑制作用减弱。
The T-cell binding end remains inactive until re-activated by light.
细胞结合末端保持无活性状态直到被光重新激活。
The T-cell binding end remains inactive until re-activated by light.
细胞结合末端保持无活性状态直到被光重新激活。
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