A preliminary study on endothelial cells derived by induction of committed differentiation of umbilical cord blood mononuclear cells in vitro / 中国实验血液学杂志

ABSTRACT

The objective was to explore the feasibility of differentiation of human umbilical cord blood mononuclear cells into endothelial cells induced by cytokines in vitro and to study the possibility of using cord blood stem cells in ischemic diseases therapy. The cells were isolated from umbilical cord blood by using lymphocyte separation solution, and committedly differentiated by using VEGF, bFGF and IGF-I in a liquid culture system. The results showed that the combination of cytokines produced a large number of caudated adherent cells and flow cytometric analysis revealed endothelial marker vWF expressed in about 80% cells, and the endothelial -specific Weibel-Palade body was detected in the cytoplasm by electronic microscope. It is concluded that human umbilical cord blood mononuclear cells may be induced to differentiate into endothelial cells induced by VEGF, bFGF and IGF-I. Human umbilical cord blood MNC may be an ideal source of adult stem cells for the treatment of the ischemic disease.