本文用半定量RT-PCR方法检测多种细胞因子、细菌抗原、丝裂原对P2X7受体表达的诱导作用，探索P2X7受体的诱导表达模式。

RT-PCR was used to detect the constitutive level of P2X7 receptor and the levels upon stimulation with bacteria, bacterial product, mitogen and various cytokines in human PBMC and monocytes.

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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.

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到目前为止确定的糖脂类抗原很少，只在细菌和花粉中发现了一部分。

Few glycolipid antigens have been discovered so far, although some have now been identified in bacteria and pollen.

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When they do that they can actually engulf the bacteria in a process called phagocytosis and break them down into antigens.

免疫细胞确实是将细菌整个吞进了肚内,这一过程称为吞噬作用,并将细菌分解成小抗原

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So, I have a bacteria infection, stimulates my immune system, I start making antibodies that bind to an antigen specific to that bacteria.

所以 如果我被细菌感染了,我的免疫系统被激活,开始制造抗体,这些抗体结合到细菌特异性的抗原上

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