结论人脐血基质细胞与骨髓基质细胞都具有分泌支持造血生长因子的能力，但是分泌量之间有差异。
Conclusion Human umbilical cord blood stromal cells and bone marrow stromal cells possess the capability of secreting hematopoietic growth factor, but with varied concentrations.
人脐血中是否存在造血基质细胞及其生物学特点如何，脐血基质细胞能否在体外有效扩增，国内外相关的系统性研究较少。
The related systematic research is rather less in whether there exist hematopoietic stromal cells in HUCB, how about it's biological properties, and whether it can be expanded effectively in vitro?
结论：人脐血CD34+细胞群中存在造血基质细胞的前体细胞，人脐血贴壁细胞具有造血基质细胞的某些生物学特点。
It is concluded there are hematopoitic adherent precursors in cord blood CD34+ cells and the HUCBAC shows some biological behavior of hematopoitic stromal cells.
人脐血中是否存在造血基质细胞及其生物学特点如何，脐血基质细胞能否在体外有效扩增，国内外相关的系统性研究较少。
The effects of bone marrow stromal cells conditioned medium combined with TPO on the expansion of mature megakaryocytes and CFU-Meg in vitro;
人脐血中是否存在造血基质细胞及其生物学特点如何，脐血基质细胞能否在体外有效扩增，国内外相关的系统性研究较少。
The effects of bone marrow stromal cells conditioned medium combined with TPO on the expansion of mature megakaryocytes and CFU-Meg in vitro;
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