alexa Human peripheral blood monocyte-derived interleukin-10-induced semi-mature dendritic cells induce anergic CD4(+) and CD8(+) T cells via presentation of the internalized soluble antigen and cross-presentation of the phagocytosed necrotic cellular fragments
Pharmaceutical Sciences

Pharmaceutical Sciences

Journal of Clinical & Experimental Pharmacology

Author(s): Sato K, Yamashita N, Matsuyama T

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Abstract We examined the ability of human monocyte-derived interleukin (IL)-10-induced semi-mature dendritic cells (semi-mDCs) that had been pulsed with soluble protein and necrotic cellular fragments to induce an antigen (Ag)-specific anergy in CD4(+) and CD8(+) T cells. IL-10 converted normal immature DCs (iDCs) into semi-mDCs during the maturation. In contrast to normal iDCs and mature DCs, IL-10-induced semi-mDCs as well as IL-10-treated iDCs not only had reduced their allogeneic T cell-stimulatory capacity, but also induced an allogeneic Ag-specific anergy in T cells. Normal mDCs that had been pulsed with tetanus toxin (TT) or allogeneic necrotic cellular fragments caused further activation of TT-specific CD4(+) T cells or allogeneic fibroblast-specific CD8(+) T cells, Ag-pulsed IL-10-induced semi-mDCs induced an anergic state in both cell types. Thus, our results suggest that IL-10-induced semi-mDCs induce an Ag-specific anergy in CD4(+) and CD8(+) T cells via presentation of the internalized protein and cross-presentation of the phagocytosed cellular fragments.
This article was published in Cell Immunol and referenced in Journal of Clinical & Experimental Pharmacology

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