In vivo tumor formation frequency of CD133+ and CD133- cells.

Magnetically sorted CD133+ and CD133- cells were s.c. inoculated to BDF1 mice at two cell doses. The animals were examined for tumor formation after 2 weeks.

将经磁分选的CD133阳性（CD133+）与CD133阴性（CD133-）细胞以两种细胞剂量经皮下（s.c.）接种至BDF1小鼠，于接种后2周检测小鼠的肿瘤形成情况。