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用甲基纤维素法培养１５例新生儿脐血巨核系造血祖细胞（ＣＦＵ－Ｍｅｇ），观察了ＣＦＵ－Ｍｅｇ的生长特性、集落产率与接种细胞数的相关性，并与成人骨髓及外周血ＣＦＵ－Ｍｅｇ的数量进行了比较。结果表明，脐血中富含ＣＦＵ－Ｍｅｇ，且分裂快、子代细胞多，形成集落早呈现活跃的增殖状态，其数量低于成人骨髓但个体间差异明显，２６．７％的样本ＣＦＵ－Ｍｅｇ产率高于骨髓。接种细胞数量与ＣＦＵ－Ｍｅｇ的产率在一定范围内呈良好的线性关系。
Megakaryocyte hematopoietic progenitor cells (CFU-Meg) from 15 newborns were cultured in methylcellulose medium. The growth characteristics, colony yield and the number of inoculated cells of CFU-Meg were observed and compared with those of adult bone marrow and peripheral The number of CFU-Meg blood was compared. The results showed that umbilical cord blood was rich in CFU-Meg, and split quickly, progeny more cells, the formation of colonies showed an active proliferative state early, the number is lower than the adult bone marrow but significant differences between individuals, 26.7% of samples CFU- Meg yields are higher than marrow. The number of inoculated cells and the yield of CFU-Meg showed a good linear relationship within a certain range.