PMID- 23290216 OWN - NLM STAT- MEDLINE DCOM- 20131216 LR - 20130107 IS - 0376-2491 (Print) IS - 0376-2491 (Linking) VI - 92 IP - 40 DP - 2012 Oct 30 TI - [Roles of interleukin-10 differentiated dendritic cell of allergic asthma patients in T-lymphocyte proliferation in vitro]. PG - 2851-4 AB - OBJECTIVE: To explore the roles of interleukin (IL)-10 differentiated peripheral blood monocyte-derived dendritic cell (DC-10) of allergic asthma patients in T-lymphocytes proliferation in vitro. METHODS: From January to June 2011, 10 subjects with dust mite allergic asthma treated at Third Affiliated Hospital of Soochow University were enrolled. Their peripheral blood monocytes were isolated by Ficoll-Hypaque solution density gradient centrifugation and adherent method. And the adherent monocytes were routinely cultured with granulocyte-macrophage colony-stimulating factor (GM-CSF)+interleukin-4 (IL-4)+tumor necrosis factor-alpha (TNF-alpha), stimulated with/without interleukin-10 (IL-10), pulsed with dust mite allergen and finally harvested. The cell surface molecules including CD80, CD83, CD86, human leukocyte antigen (HLA)-DR and immunoglobulin-like transcript 2 (ILT2) were detected by immunofluorescent labeling and flow cytometry. And cellular functions were estimated by detecting the capacities of DC uptake antigens with fluorescein isothiocyanate (FITC)-dextran capturing assay. The IL-10 differentiation DC (DC-10) were cultured with autologous peripheral T cells (DC-10 group), either alone (DC-TNF group) or together (combined group) with autologous immunostimulatory DC (DC-TNF). And the impact of this treatment on T-cell responses was assessed for each donor by 3-(4, 5)-dimethylthiahiazo (-z-y1)-3, 5-di-phenytetrazoliumromide (MTT) assay. The production of interferon-gamma (IFN-gamma), IL-4, interleukin-5 (IL-5) and interleukin-13 (IL-13) were measured with the quantification of enzyme linked immunosorbent assay (ELISA) kits. RESULTS: In DC-10, the levels of some mature DC's markers (CD80, CD83, CD86 & HLA-DR) decreased, ILT2 increased and there were the higher capacities of up-taking FITC-dextran particle (72.32%+/-2.93% vs 54.41%+/-2.95%, P<0.01). Compared with the DC-TNF group (1.74+/-0.15), the T cell proliferation of the DC-10 group (1.06+/-0.18) and that of the combined group (1.34+/-0.16) were significantly inhibited (P<0.01). The secretion levels of IFN-gamma, IL-4, IL-5 and IL-10 were (2998+/-141), (157+/-17), (2608+/-254) and (55+/-11) ng/L in the DC-10 group versus (3223+/-203), (149+/-19), (2465+/-183) and (88+/-10) ng/L respectively in the combined group. They were all significantly reduced versus (3639+/-209), (173+/-16), (2771+/-183) and (127+/-11) ng/L in the DC-TNF group (all P<0.01). CONCLUSIONS: The IL-10-treated human DC may express a tolerogenic phenotype and induce the allergen tolerance of T cells. And the induction of DC-10 represents a promising target for therapeutic intervention of effectively managing the clinical outcomes of allergic asthma. FAU - Tang, Jian-feng AU - Tang JF AD - Department of Respiratory Medicine, Third Affiliated Hospital, Soochow University, Changzhou 213000, China. FAU - Guan, Shu-hong AU - Guan SH FAU - Wang, Zhi-gang AU - Wang ZG LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Yi Xue Za Zhi JT - Zhonghua yi xue za zhi JID - 7511141 RN - 0 (Interleukin-13) RN - 0 (Interleukin-5) RN - 130068-27-8 (Interleukin-10) RN - 207137-56-2 (Interleukin-4) RN - 82115-62-6 (Interferon-gamma) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) SB - IM MH - Adult MH - Asthma/*blood MH - Cell Differentiation MH - Cell Proliferation/drug effects MH - Dendritic Cells/cytology/*drug effects/*metabolism MH - Female MH - Granulocyte-Macrophage Colony-Stimulating Factor/metabolism MH - Humans MH - Interferon-gamma/metabolism MH - Interleukin-10/*pharmacology MH - Interleukin-13/metabolism MH - Interleukin-4/metabolism MH - Interleukin-5/metabolism MH - Lymphocyte Activation/*drug effects MH - Male MH - Middle Aged MH - Monocytes/cytology MH - T-Lymphocytes/*cytology MH - Young Adult EDAT- 2013/01/08 06:00 MHDA- 2013/12/18 06:00 CRDT- 2013/01/08 06:00 PHST- 2013/01/08 06:00 [entrez] PHST- 2013/01/08 06:00 [pubmed] PHST- 2013/12/18 06:00 [medline] PST - ppublish SO - Zhonghua Yi Xue Za Zhi. 2012 Oct 30;92(40):2851-4.