| 1. | Rather than injecting undifferentiated stem cells into damaged tissue , using precursor cells from a later stage of development - - ones already “ programmed ” to become retina or some other type of cell - - may be more successful , he says 不是通过注射未分化的干细胞进入损伤组织,使用来自发育后期的前体细胞(已经程序化成为视网膜或其他种类的细胞)可能更成功。 |