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  • Title: [Effect of growth factor on the phenotype of subpopulations and on the kinetics of CD34+ cells in the peripheral blood and in grafts of peripheral stem cells in patients with non-Hodgkin's lymphoma indicated for autologous peripheral blood stem cell transplantation].
    Author: Klabusay M, Lysák D, Hrabcáková V, Navrátil M, Coupek P, Mayer J.
    Journal: Cas Lek Cesk; 2008; 147(6):319-24. PubMed ID: 18724529.
    Abstract:
    BACKGROUND: Peripheral blood stem cells are the preferred source for transplantation of hematopoiesis in patients with non-Hodgkin's lymphoma. Application of hematopoietic growth factors is a part of the mobilization chemotherapy regimen. Time overlap of the highest leukocyte and CD34+ cell count is required for optimal graft collection. Authors analyzed the effect of two growth factors (leridistim and filgrastim) on the kinetics and phenotype of CD34+ cells in patients with non-Hodgkin's lymphoma indicated for autologous peripheral blood stem cell transplantation. METHODS AND RESULTS: Authors analyzed phenotype of CD34+ cell subpopulations and their kinetics in peripheral blood and leukapheresis products by flow cytometry during mobilization and graft collection. Statistically significant differences in expression of lineage-committed antigens between growth factors were found (CD3, CD5--T-lineage, CD56 NK-lineage, CD20 for B-lineage, p < 0.05), as well as for lineage non-specific antigens (CD38, p < 0.05 and CD54, p < 0.01). The most significant divergence was observed between CD34+CD19+ subpopulations of leridistim and filgrastim stimulated blood and graft (p < 0.001). CONCLUSIONS: Expression of lineage-committed antigens on CD34+ subpopulations between two growth factors was statistically different. Kinetics of CD34+ cells during mobilization regimen with leridistim was not superior to filgrastim concerning the quality of graft.
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