PMID- 23498791 OWN - NLM STAT- MEDLINE DCOM- 20130830 LR - 20151119 IS - 1873-2623 (Electronic) IS - 0041-1345 (Linking) VI - 45 IP - 2 DP - 2013 Mar TI - Immune tolerance of skin allograft transplantation induced by immature dendritic cells of a third party carrying donor antigens in mice. PG - 552-7 LID - S0041-1345(12)01353-X [pii] LID - 10.1016/j.transproceed.2012.07.161 [doi] AB - BACKGROUND: Dendritic cells (DCs) are the most powerful antigen-presenting cells in the body. Immature DCs (imDCs) can induce transplantation tolerance. In this study, using a mouse model of skin transplantation. We explored the antigen uptake by imDCs, changes in phenotype and function after antigen loading, as well as survival of skin grafts. METHODS: Mononuclear cells from C57BL/6 mice mixed with a tritiated leucine ([(3)H]Leu) antigen supernate were incubated with Kunming mice imDC and mature DCs. We recorded the expressions of surface molecules that were detected using flow cytometry, mixed lymphocyte reactions, mean survival times, and postoperative morphological changes in skin grafts. RESULTS: After the addition of allogeneic antigen supernate, the counts per minute of imDCs were significantly higher than those of mature DCs. The expression rates of I(A)/I(E) and CD80 significantly increased on the cell surface of imDCs. The counts per minute of imDCs in mixed lymphocyte reactions in the presence of allogeneic antigens was significantly higher than those of controls. Comparing mean survival times with controls, skin grafts were significantly longer in the imDCs groups from donors or from a third party carrying donor antigens. CONCLUSIONS: ImDCs display a strong antigen uptake, gradually maturing in terms of phenotype and function after loading. Complementary application of cytotoxic T-lymphocyte-associated antigen 4 immunoglobulin blocks the immune response of imDCs. Both imDCs from the third party carrying donor antigens and those from the donor strain can establish antigen-specific immune tolerance to allogeneic skin grafts. CI - Copyright (c) 2013 Elsevier Inc. All rights reserved. FAU - Xin, H AU - Xin H AD - Burn and Plastic Surgery Department of PLA 181 Hospital, Guilin, Guangxi, China. FAU - Yang, W AU - Yang W FAU - Wang, Q AU - Wang Q FAU - You, B AU - You B FAU - Tong, Y AU - Tong Y FAU - Peng, Y AU - Peng Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Transplant Proc JT - Transplantation proceedings JID - 0243532 RN - 0 (Antigens) RN - 0 (Immunoconjugates) RN - 0 (Immunosuppressive Agents) RN - 7D0YB67S97 (Abatacept) SB - IM MH - Abatacept MH - Animals MH - Antigens/*immunology MH - Cells, Cultured MH - Dendritic Cells/drug effects/immunology/*transplantation MH - Female MH - Flow Cytometry MH - Graft Rejection/immunology/*prevention & control MH - *Graft Survival/drug effects MH - Immunoconjugates/pharmacology MH - Immunosuppressive Agents/pharmacology MH - Lymphocyte Culture Test, Mixed MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - Phenotype MH - Skin Transplantation/adverse effects/*immunology MH - Time Factors MH - *Transplantation Tolerance/drug effects EDAT- 2013/03/19 06:00 MHDA- 2013/08/31 06:00 CRDT- 2013/03/19 06:00 PHST- 2012/01/12 00:00 [received] PHST- 2012/07/05 00:00 [revised] PHST- 2012/07/19 00:00 [accepted] PHST- 2013/03/19 06:00 [entrez] PHST- 2013/03/19 06:00 [pubmed] PHST- 2013/08/31 06:00 [medline] AID - S0041-1345(12)01353-X [pii] AID - 10.1016/j.transproceed.2012.07.161 [doi] PST - ppublish SO - Transplant Proc. 2013 Mar;45(2):552-7. doi: 10.1016/j.transproceed.2012.07.161.