期刊
LEUKEMIA
卷 20, 期 5, 页码 870-876出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.leu.2404157
关键词
dendritic cells; hematopoietic progenitor cells; immortalization; Notch-1
Studies of hematopoietic stem cell (HSC)-derived dendritic cells (DCs) are often limited by the rarity of HSC. To facilitate the study of DCs, we have generated a novel cell line (CR1) by retroviral Notch(IC) gene transfer into Sca1(+) ckit(+) lin(-) HSC. CR1 cells proliferated in vitro in the presence of recombinant interleukin-3. They maintained an immature progenitor cell phenotype and an intact karyotype. In the presence of granulocyte-macrophage colony-stimulating factor or Flt3L, CR1 cells differentiated into myeloid and plasmacytoid DCs, respectively. Functionally, CR1 cells were comparable to primary bone-marrow-derived DCs with respect to Toll-like-receptor-mediated maturation, cytokine release and capacity to induce effective antitumor immunity. CR1 cells thus provide an elegant new cellular tool to study DC development, function and preclinical DC-based immunotherapies.
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