Important note: Information in this article was accurate in 2000. The state of the art may have changed since the publication date.
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Int Immunol. 2000 Mar;12(3):335-42. Unique Identifier : AIDSLINE MED/20166985
Sato M; Iwakabe K; Ohta A; Sekimoto M; Nakui M; Koda T; Kimura S; Nishimura T; Section of Genetic Engineering, Research Center for Genetic; Engineering and Cell Transplantation, Tokai University School of; Medicine, Isehara 259-1193, Kanagawa, Japan.
Abstract: Three distinct bone marrow (BM)-derived dendritic cells (BMDC) were expanded from BALB/c BM cells by culture with (i) granulocyte macrophage colony stimulating factor (GM-CSF) plus IL-3, (ii) GM-CSF, IL-3 plus T(h)1-biasing cytokines (IL-12 and IFN-gamma) or (iii) GM-CSF, IL-3 plus T(h)2-biasing cytokines (IL-4). All of these cells expressed the DC-specific marker CD11c, and were designated as BMDC0, BMDC1 and BMDC2 cells respectively. BMDC1 cells exhibited superior T cell-stimulating activity in allogeneic mixed lymphocyte culture (MLC), while BMDC2 showed inferior stimulating activity. Specifically, BMDC1, as compared with BMDC2, induced a higher frequency of IFN-gamma-producing CD8(+) T cells in MLC. Moreover, BMDC1, but not BMDC2, were strong inducers of H-2(d)-specific cytotoxic T lymphocytes (CTL) in MLC. BMDC0 always showed intermediate stimulatory activity; however, when BMDC0 were cultured with IFN-gamma, they differentiated into BMDC1-like stimulator cells concomitant with the up-regulation of both MHC antigens and co-stimulatory molecules. In contrast, BMDC2 were refractory to differentiation into superior stimulator cells by treatment with IFN-gamma, although this treatment enhanced MHC expression. These findings indicate that T(h)1- and T(h)2-biasing cytokines, in addition to their effect on T(h) cell differentiation, may play a critical role in the functional skewing of DC. These findings have important implications for the development of DC-based immunotherapies.
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