title: [Fetal Bone Marrow Stromal Cells in Cooperation with Exogenous Cytokines Support In Vitro Expansion of Cord Blood CD34(+) Cells]
abstract: To elucidate the role of fetal bone marrow stromal cells (FBMSC) in cooperation with exogenous cytokines in supporting the in vitro expansion of cord blood CD34(+) cells which were purified by negative immunomagnetic selection, FBMSCs were cultured with different combinations of cytokines including SCF, IL-3, IL-6, FL, G-CSF and EPO in a 14-day liquid culture system. The results showed FBMSC plus SCF, IL-3, IL-6, FL and EPO was the most effective combination which increased total nucleated cells, CFU-GM, BFU-E and CD34(+) cells by (692.4 +/- 52.7) fold, (237.1 +/- 106.6) fold, (114.8 +/- 32.8) fold and (25.3 +/- 10.1) fold, respectively. Our studies indicated that fetal bone marrow stromal cells combined with above-mentioned cytokines can efficiently expand cord blood CD34(+) cells.
authors.affiliation: Department of Hematology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Han
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Wang
authors.forename: Ming-Juan
authors.initials: MJ
authors.lastname: Xu
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Zhang
authors.forename: Hong
authors.initials: H
authors.lastname: Zhou
authors.forename: Bi-He
authors.initials: BH
authors.lastname: Min