KIR2DL与相应的配体HLA-C结合后传递抑制信号，使NK细胞对靶细胞的杀伤作用被抑制。
KIR2DL can bind the classical HLA-C antigen, and produce inhibitory signals which can inhibit the cytotoxicity of NK cell.
但是对其它正常的孩子来说，他们的同情心是被引导还是被抑制，成长环境起着相当大的作用。
But in otherwise normal children, the environment in which they are reared can make a big difference in whether empathy is fostered or suppressed.
新化合物有可能被撤出市场，这种风险对新药物开发具有强大抑制作用。
The risk that new compounds may be withdrawn from the market is a strong disincentive to new drug development.
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