Conclusion: The conventional fractioned radiotherapy can activate cell mediated immunity of CD8+ T and NK cells, but inhibit the differentiation of T cells and NK cells signaling transduction pathway.

结论：放疗能部分激活CD8+T及NK细胞介导的杀伤免疫，同时抑制T细胞和NK细胞的分化及其信号传导通路。

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But first,Mister Venter said, they had to de-activate a gene in the receiving cell that would have killed the synthetic genome.

VOA: special.2010.07.20

The cell is then given a jolt of electricity to activate cell division, basically tricking the cell into doing what a fertilized egg would normally do.

CNN: Cloning experts to tell House committee pros, cons

With only the genetic material from the person to be cloned inside the shell of the egg, the cell would be jolted with electricity to activate cell division.

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Shoppers will be able to activate subscriptions for cell phones, cable and satellite TV and XM satellite radio.

FORBES: Hammered