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    Content of long-term culture-initiating cells, clonogenic progenitors and CD34 cells in apheresis harvests of normal donors for allogeneic transplantation, and in patients with acute myeloid leukaemia or multiple myeloma.

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    Authors
    Kasper, C
    Ryder, W David J
    Dürig, J
    Nagesh, K
    Scarffe, J Howard
    Beelen, D W
    Schaefer, U W
    Chang, James
    Testa, Nydia G
    Affiliation
    Cancer Research Campaign Department of Experimental Haematology, Christie Hospital, Manchester, UK.
    Issue Date
    1999-02
    
    Metadata
    Show full item record
    Abstract
    Using a limiting dilution assay the frequency of long-term culture-initiating cells (LTC-IC) in the apheresis products following mobilization by granulocyte-colony stimulating factor (G-CSP) with or without chemotherapy from 14 normal donors (ND) for allogeneic bone marrow transplantation, 16 patients with multiple myeloma (MM) and 15 patients with acute myeloid leukaemia (AML), where the aphereses were intended for autologous transplantation, were compared. The estimated median incidences of LTC-IC in the first apheresis products from ND, MM and AML were 1/3289, 1/1775 and 1/13075 mononuclear cells (MNC) respectively. The patients with AML had a significantly lower incidence compared with the other two groups (P < 0.0001). There was a positive correlation between the incidence of LTC-IC and the number of CD34+ cells, the number of GM-CFC, and the number of BFU-E. The positive association with GM-CFC or BFU-E was weaker. In these experiments the percentage of CD34+ cells was the best predictor for the frequency of LTC-IC in the peripheral blood progenitor cells (PBPC). In eight cases of MM the LTC-IC assay was performed for both the first and second harvest. All cases had a lower LTC-IC frequency in the second harvest compared with the first, an average of 23% (13-42%, 95% confidence interval) and this reduction was statistically significant (P<0 001); CD34+ cells were also lower (P< 0.001).
    Citation
    Content of long-term culture-initiating cells, clonogenic progenitors and CD34 cells in apheresis harvests of normal donors for allogeneic transplantation, and in patients with acute myeloid leukaemia or multiple myeloma. 1999, 104 (2):374-81 Br. J. Haematol.
    Journal
    British Journal of Haematology
    URI
    http://hdl.handle.net/10541/88010
    DOI
    10.1046/j.1365-2141.1999.01152.x
    PubMed ID
    10050722
    Type
    Article
    Language
    en
    ISSN
    0007-1048
    ae974a485f413a2113503eed53cd6c53
    10.1046/j.1365-2141.1999.01152.x
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