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Antigen presentation by murine peritoneal cavity macrophage-derived dendritic cells
L H Makala1, Y Nishikawa, T Kamada
1National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido, Japan.
Murine peritoneal cavity macrophage derived dendritic cells (PEC-DC) generated using early growth factors, interleukin 4 and granulocyte-macrophage colony-stimulating factor followed by maturation in interferon-gamma plus either, Toxoplasma lysate antigen (TLA) or lipopolysaccharide, bind TLA by a nonspecific mechanism and continue to express major histocompatibility complex class II antigens after 24 h of culture in vitro. Moreover, the proliferation of CD3+ spleen T cells from mice immunized with Toxoplasma gondii homogenate, induced by PEC-DC-mediated antigen presentation was statistically significant and of consistent amplitude. This accessory function of PEC-DC is antigen specific.
Murine peritoneal cavity macrophage derived dendritic cells (PEC-DC) generated using early growth factors, interleukin 4 and granulocyte-macrophage colony-stimulating factor followed by maturation in interferon-gamma plus either, Toxoplasma lysate antigen (TLA) or lipopolysaccharide, bind TLA by a nonspecific mechanism and continue to express major histocompatibility complex class II antigens after 24 h of culture in vitro. Moreover, the proliferation of CD3+ spleen T cells from mice immunized with Toxoplasma gondii homogenate, induced by PEC-DC-mediated antigen presentation was statistically significant and of consistent amplitude. This accessory function of PEC-DC is antigen specific.