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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 71 (1995), S. 105-110 
    ISSN: 1432-0584
    Keywords: Key words Peripheral blood stem cells ; CD34 ; CD38 ; HLA-DR ; Granulocyte colony-stimulating factor (G-CSF)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Several studies have demonstrated that both CD34+/CD38- and CD34+/HLA-DR- human hematopoietic progenitor cells have properties associated with hematopoietic stem cells. However, the kinetics of these two cell populations in human peripheral blood (PB) after priming with granulocyte colony-stimulating factor (rhG-CSF) has not been investigated. By using flow-cytometric analysis we have shown that administration of rhG-CSF to 14 patients eligible for peripheral blood progenitor cell (PBPC) transplantation led to an increment of CD34+/CD38+ and CD34+/HLA-DR+ cells in the PB that paralleled the increase of total CD34+ cells, indicating that such subpopulations are responsible for the major release of CD34+ cells. Furthermore, rhG-CSF priming led to a significant mobilization of fractions of more immature CD34+/CD38- and CD34+/HLA-DR- cells to the PB. In the leukapheresis preparations, the average frequency of CD34+ cells lacking the CD38 or HLA-DR antigens was low (5% and 30%, respectively), with little overlap between the CD38- and HLA-DR- subpopulations. In addition, the yield of each subset of CD34+ cells (CD34+/CD38± and CD34+/HLA-DR±) in the PB correlated with the numbers in the collected material. The results of the present study indicate that administration of rhG-CSF causes a significant increase of CD34+/CD38± and CD34+/HLA-DR± cells in PB, and that such cells can be then safely harvested by leukapheresis procedures.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 71 (1995), S. 105-110 
    ISSN: 1432-0584
    Keywords: Peripheral blood stem cells ; CD34 ; CD38 ; HLA-DR ; Granulocyte colony-stimulating factor (G-CSF)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Several studies have demonstrated that both CD34+/CD38− and CD34+/HLA-DR- human hematopoietic progenitor cells have properties associated with hematopoietic stem cells. However, the kinetics of these two cell populations in human peripheral blood (PB) after priming with granulocyte colony-stimulating factor (rhG-CSF) has not been investigated. By using flow-cytometric analysis we have shown that administration of rhG-CSF to 14 patients eligible for peripheral blood progenitor cell (PBPC) transplantation led to an increment of CD34+/CD38+ and CD34+/HLA-DR+ cells in the PB that paralleled the increase of total CD34+ cells, indicating that such subpopulations are responsible for the major release of CD34+ cells. Furthermore, rhG-CSF priming led to a significant mobilization of fractions of more immature CD34+/CD38− and CD34+/HLA-DR- cells to the PB. In the leukapheresis preparations, the average frequency of CD34+ cells lacking the CD38 or HLA-DR antigens was low (5% and 30%, respectively), with little overlap between the CD38- and HLA-DR- subpopulations. In addition, the yield of each subset of CD34+ cells (CD34+/CD38± and CD34+/HLA-DR±) in the PB correlated with the numbers in the collected material. The results of the present study indicate that administration of rhG-CSF causes a significant increase of CD34+/CD38± and CD34+/HLA-DR± cells in PB, and that such cells can be then safely harvested by leukapheresis procedures.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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