Method MTT and colony-forming assay were used to detect the inhibitory effect of HECE on the growth and colony-forming of NCI446 cells cultured ex vivo.

• 方法:采用MTT法和平板克隆形成法检测人胚绒毛提取液对NCI446细胞体外生长及干细胞克隆形成的抑制作用。