Based on the background above, in this study, human umbilical cord blood CD34+ cells were seperated and cultured with Dexter system, and the feasibility of the expansion of hUCBSC in vitro and the function of supporting haematogenesis were observed.

• 1分离人脐血CD34+细胞,采用Dexter贴壁细胞培养体系行脐血源基质细胞培养、传代扩增,采用光镜,电镜、组织细胞化学、免疫细胞化学和流式细胞仪等技术对脐血源基质细胞进行鉴定;