In:
Blood, American Society of Hematology, Vol. 90, No. 9 ( 1997-11-01), p. 3482-3495
Abstract:
Defects in immune response are often reported in patients with multiple myeloma (MM). Because dendritic cells (DCs) are key effectors in promoting cellular immunity and are potential vectors for immunotherapy, we have evaluated the ability of MM patients' apheresis cells to generate DCs in short-term cultures. We report here the obtaining of a virtually pure population of DCs (89.7% ± 6%, n = 18) after culturing adherent apheresis cells for 7 days with granulocyte-macrophage colony-stimulating factor (GM-CSF ) and interleukin-4 (IL-4). These cells exhibited all the phenotypic characteristics (CD1a+, HLA-DR+, CD80+, CD40+, CD14−) and the MLR stimulating capacity of mature DCs. The number of DCs reached 12.1% of the initial apheresis cell number put into culture. As DC precursors involved in this model were CD34− cells, the unabsorbed cells resulting from clinical-grade CD34 purification were a reliable source of DCs, even after freezing. The proliferation of DC precursors could be increased 10-fold by adding IL-3 and tumor necrosis factor-α together with GM-CSF and IL-4. Thus, CD34− apheresis cells from patients with MM offer an interesting source for generating pure, functional, and potentially proliferating DCs.
Type of Medium:
Online Resource
ISSN:
1528-0020
,
0006-4971
DOI:
10.1182/blood.V90.9.3482
Language:
English
Publisher:
American Society of Hematology
Publication Date:
1997
detail.hit.zdb_id:
1468538-3
detail.hit.zdb_id:
80069-7
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