They can then use specific colors of light to activate or silence particular cells and circuits, which in turns reveals the role that those cells and circuits play in the broader nervous system.
然后利用一些特殊颜色的光线使特定的细胞和回路活跃起来或者保持安静，借此他们可以发现这些细胞和回路在更大范围的神经系统中所扮演的角色。
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.
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。
These compounds activate dendritic cells to produce proinflammatory cytokines, which in turn trigger cytotoxic mechanisms leading to cancer death.
这些化合物能够启动树状突细胞产生致炎因子从而依次来引发可导致癌细胞死亡的细胞毒作用。
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