PMID- 15191022 OWN - NLM STAT- MEDLINE DCOM- 20040708 LR - 20071114 IS - 1081-1206 (Print) IS - 1081-1206 (Linking) VI - 92 IP - 5 DP - 2004 May TI - Diminished dendritic cell interleukin 10 production in atopic children. PG - 538-44 AB - BACKGROUND: Diminished interleukin 10 (IL-10) and/or IL-12 production may contribute to the pathogenesis of asthma and atopy. Dendritic cells (DCs) produce these cytokines and have been implicated in the pathogenesis of these disorders. OBJECTIVE: To determine whether DC IL-10 and/or IL-12 production is diminished in children aged 6 to 12 years with allergic rhinitis (AR) and with or without asthma. METHODS: Monocyte-derived DCs were isolated from 20 subjects without AR or asthma (group 1), 20 subjects with AR without asthma (group 2), and 20 subjects with AR and asthma (group 3). Asthma was defined as a history of physician-diagnosed disease, and AR was defined as a positive history and positive puncture skin test responses (wheal > or = 5 mm) to relevant inhalant allergens. DCs were stimulated with either lipopolysaccharide (LPS) or diluent and cultured for 24 hours. Supernatants were assayed for IL-10 and IL-12 levels by enzyme-linked immunosorbent assay. RESULTS: DC IL-10 production was diminished in groups 2 and 3 compared with group 1. Median LPS-induced IL-10 levels were 11.0 pg/mL in group 1, 6.1 pg/mL in group 2, and 1.5 pg/mL in group 3. The frequencies of subjects with detectable IL-10 levels were 85%, 20%, and 20% in groups 1, 2 and 3, respectively. Median LPS-induced IL-12 levels were similar in all groups. CONCLUSIONS: These data support the hypothesis that atopic subjects have an intrinsic inability to up-regulate DC IL-10 production. Future studies in this area could lead to a better understanding of the pathogenesis of atopy. FAU - Gentile, Deborah A AU - Gentile DA AD - Division of Allergy, Asthma and Immunology, Department of Pediatrics, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212, USA. dgentile@wpahs.org FAU - Schreiber, Rachel AU - Schreiber R FAU - Howe-Adams, Judith AU - Howe-Adams J FAU - Trecki, Jordan AU - Trecki J FAU - Patel, Asha AU - Patel A FAU - Angelini, Betty AU - Angelini B FAU - Skoner, David P AU - Skoner DP LA - eng GR - 5M01RR00084/RR/NCRR NIH HHS/United States GR - K23RR16072/RR/NCRR NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Ann Allergy Asthma Immunol JT - Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology JID - 9503580 RN - 130068-27-8 (Interleukin-10) RN - 187348-17-0 (Interleukin-12) SB - IM MH - Asthma/immunology MH - Child MH - Dendritic Cells/*immunology MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Humans MH - Hypersensitivity, Immediate/*immunology MH - Interleukin-10/*biosynthesis/immunology MH - Interleukin-12/biosynthesis/immunology MH - Male MH - Respiratory Function Tests MH - Rhinitis, Allergic, Perennial/*immunology MH - Skin Tests EDAT- 2004/06/12 05:00 MHDA- 2004/07/09 05:00 CRDT- 2004/06/12 05:00 PHST- 2004/06/12 05:00 [pubmed] PHST- 2004/07/09 05:00 [medline] PHST- 2004/06/12 05:00 [entrez] AID - S1081-1206(10)61761-9 [pii] AID - 10.1016/S1081-1206(10)61761-9 [doi] PST - ppublish SO - Ann Allergy Asthma Immunol. 2004 May;92(5):538-44. doi: 10.1016/S1081-1206(10)61761-9.