The proliferation and the CFE (colony forming efficiency) of the PGCs were investigated and the effects of the different concentrations of LIF (leukemia inhibitory factor) on PGCs differentiation were studied.

• 进而观察不同浓度白血病抑制因子 (leukemiainhibitoryfactor,LIF)对PGCs克隆在传代及未分化状态的维持等方面的影响 ;