PMID- 20083662 OWN - NLM STAT- MEDLINE DCOM- 20100326 LR - 20201215 IS - 1550-6606 (Electronic) IS - 0022-1767 (Linking) VI - 184 IP - 4 DP - 2010 Feb 15 TI - Tolerogenic dendritic cells generated with different immunosuppressive cytokines induce antigen-specific anergy and regulatory properties in memory CD4+ T cells. PG - 1765-75 LID - 10.4049/jimmunol.0902133 [doi] AB - Dendritic cells (DCs) are professional APCs involved in the initiation of both immunity and immunological tolerance. In autoimmune diseases or graft rejections, most reactive lymphocytes are effector/memory cells. It is believed that memory T cells are more resistant to tolerance induction than naive lymphocytes; however, studies on mechanisms for their efficient tolerization are still scarce. In this study, we generated human monocyte-derived DCs by culture with GM-CSF and IL-4 (control DCs), as well as tolerogenic DCs (tDCs) by adding IL-10, IL-10/TGF-beta1, or IL-10/IL-6. Cells were maturated with TNF-alpha/PGE(2). Compared with control DCs, tDCs had similar expression of HLA-DR, CD80, and CD86, lower expression of CD40, higher levels of macrophage markers, enhanced endocytic ability, increased secretion of IL-6, IL-10 (only tDCs generated with IL-10 and tDCs generated with IL-10/IL-6), and PGE(2), and lower secretion of IL-12 and IL-23. In vitro, tDCs had the capacity to induce anergy in tetanus toxoid-specific memory CD4(+) T cells, whereas the proliferative response to an unrelated Ag was intact. Anergy could be reverted upon exposure to IL-2. tDC-primed T cells have low suppressive ability. Nevertheless, the generation of both anergic and regulatory T cells was more efficient with tDCs generated with IL-10/TGF-beta1. Microarray-based gene expression profiling reflected modulated expression of several transcripts in tDCs. Surface CLIP-HLA-DR complexes and intracellular thrombospondin-1 were increased in the three tDCs. CD39 was highly expressed only in tDC-TGF, which correlated with increased adenosine production. We propose that these molecules, together with IL-10 and prostanoids, are key factors to induce Ag-specific tolerance in memory T cells. FAU - Torres-Aguilar, Honorio AU - Torres-Aguilar H AD - Department of Molecular Biomedicine, Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City, Mexico. FAU - Aguilar-Ruiz, Sergio R AU - Aguilar-Ruiz SR FAU - Gonzalez-Perez, Gabriela AU - Gonzalez-Perez G FAU - Munguia, Rosario AU - Munguia R FAU - Bajana, Sandra AU - Bajana S FAU - Meraz-Rios, Marco A AU - Meraz-Rios MA FAU - Sanchez-Torres, Carmen AU - Sanchez-Torres C LA - eng SI - GEO/GSE18921 PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100118 PL - United States TA - J Immunol JT - Journal of immunology (Baltimore, Md. : 1950) JID - 2985117R RN - 0 (Antigens, Differentiation, B-Lymphocyte) RN - 0 (Cytokines) RN - 0 (Epitopes, T-Lymphocyte) RN - 0 (Histocompatibility Antigens Class II) RN - 0 (IL10 protein, human) RN - 0 (Immunosuppressive Agents) RN - 0 (Thrombospondin 1) RN - 0 (invariant chain) RN - 130068-27-8 (Interleukin-10) RN - K7Q1JQR04M (Dinoprostone) SB - IM MH - Antigens, Differentiation, B-Lymphocyte/physiology MH - CD4-Positive T-Lymphocytes/*immunology/metabolism MH - Cell Differentiation/*immunology MH - Cells, Cultured MH - Clonal Anergy/immunology MH - Cytokines/*physiology MH - Dendritic Cells/classification/*immunology/*metabolism MH - Dinoprostone/physiology MH - Epitopes, T-Lymphocyte/*immunology MH - Histocompatibility Antigens Class II/physiology MH - Humans MH - *Immune Tolerance MH - *Immunologic Memory MH - Immunosuppressive Agents/pharmacology MH - Interleukin-10/physiology MH - Macrophages/classification/immunology/metabolism MH - T-Lymphocytes, Regulatory/immunology/metabolism MH - Thrombospondin 1/physiology EDAT- 2010/01/20 06:00 MHDA- 2010/03/27 06:00 CRDT- 2010/01/20 06:00 PHST- 2010/01/20 06:00 [entrez] PHST- 2010/01/20 06:00 [pubmed] PHST- 2010/03/27 06:00 [medline] AID - jimmunol.0902133 [pii] AID - 10.4049/jimmunol.0902133 [doi] PST - ppublish SO - J Immunol. 2010 Feb 15;184(4):1765-75. doi: 10.4049/jimmunol.0902133. Epub 2010 Jan 18.