title: Differentiation of human dendritic cells from monocytes in vitro using granulocyte-macrophage colony stimulating factor and low concentration of interleukin-4.
abstract: Several laboratories have developed culture systems that allow the generation of large numbers of human dendritic cells (DC) from monocytes using granulocyte-macrophage colony stimulating factor (GM-CSF), and interleukin-4 (IL-4). In this work we provided evidence that GM-CSF (100 ng/ml) in combination with a low concentration of IL-4 (5 ng/ml) was efficient in the generation of immature, non-adherent, monocyte-derived DC as the same concentration of GM-CSF, and ten times higher concentration of IL-4 (50 ng/ml). This conclusion was based on the similar phenotype profile of DC, such as the expression of CD1a, CD80, CD86, and HLA-DR, down-regulation of CD14, and the absence of CD83, as well as on their similar allostimulatory activity for T cells. A higher number of cells remained adherent in cultures with lower concentrations of IL-4 than in cultures with higher concentrations of the cytokine. However, most of these adherent cells down-regulated CD14 and stimulated the proliferation of alloreactive T cells. In contrast, adherent cells cultivated with GM-CSF alone were predominantly macrophages, as judged by the expression of CD14 and the inefficiency to stimulate alloreactive T cells. DC generated in the presence of lower concentrations of IL-4 had higher proapoptotic potential for the Jurkat cell line than DC differentiated with higher concentrations of IL-4, suggesting their stronger cytotoxic, anti-tumor effect.
authors: Military Medical Academy, Institute for Medical Research, Belgrade.
authors: Miodrag
authors: M
authors: Colić
authors: Dusan
authors: D
authors: Jandrić
authors: Zorica
authors: Z
authors: Stojić-Vukanić
authors: Jelena
authors: J
authors: Antić-Stanković
authors: Petar
authors: P
authors: Popović
authors: Sasa
authors: S
authors: Vasilijić
authors: Petar
authors: P
authors: Milosavljević
authors: Bela
authors: B
authors: Balint
mesh_terms: D017209:Apoptosis; D002448:Cell Adhesion; D002454:Cell Differentiation / Q000187:drug effects*; D002478:Cells, Cultured; D003713:Dendritic Cells / Q000166:cytology* / Q000187:drug effects / Q000276:immunology; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000494:pharmacology*; D006801:Humans; D016130:Immunophenotyping; D015847:Interleukin-4 / Q000494:pharmacology*; D008213:Lymphocyte Activation; D009000:Monocytes / Q000166:cytology* / Q000187:drug effects
chemical_list: D015847:Interleukin-4; D016178:Granulocyte-Macrophage Colony-Stimulating Factor