MKs from CB seemed to have higher proliferation potential than that from PB, and the optimal culture duration of MK from PB is shorter than that of MK from CB.

• CB来源的巨核细胞较PB来源的巨核细胞有更强的增生能力,而PB来源的CD3+4细胞产生巨核细胞的时间较CB来源的短,与临床上外周血造血干细胞移植的血小板造血重建快于脐血移植相一致。