Introduction: Human hematopoietic stem cells (hHSCs) have been used for transplantation
in hematologic failures. Because the number of hHSCs per cord blood unit is limited, the
expansion of these cells is important for clinical application. It has been reported that cytokines
and feeder layer provide a perspective to in vitro expansion of hHSCs. In this regard, cord blood
CD34+ cells ex...
