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Transfer of T cells from intranasal ovalbumin-immunized mice ameliorates allergic response in ova-sensitized recipient mice

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Mucosal immunotherapy is suggested as a treatment strategy for tolerance induction in allergic diseases. The purpose of this study was to determine the effect of transferred splenic T cells from intranasal ovalbumin (OVA)-immunized mice to naive mice before sensitization on its impact of cytokine production and airway histopathology. BALB/c mice in group I received intranasal immunotherapy (days1–6), carboxylfluorescein succinyl ester (CFSE)–labeled splenocytes or splenic T cells were i.v. transferred to naive recipients (group II) before OVA sensitization. Acute murine asthma model was established by two i.p. OVA injections (days 21 and 28) and seven OVA nebulizations (days 42–48) in groups I, II and III. Groups III and IV served as asthma model and control, respectively. CFSE-labeled cells in splenocytes and lymph node lymphocytes, lung histopathology, IL-4, IL-10, and interferon (IFN) gamma cytokines of recipients were analyzed 24 hours after OVA nebulization challenge. CFSE-labeled T cells from group I were detected in spleen and regional lymph nodes of the OVA-sensitized recipients (group II). Smooth muscle and thickness of airways were less in intranasal OVA immunotherapy and OVA-sensitized recipients when compared with the asthma model (p < 0.05). Area of inflammation was significantly suppressed in OVA-sensitized recipients compared with the asthma model (p < 0.01). IL-10 and IFN-gamma levels in splenocyte supernatants were significantly increased in intranasal immunotherapy and OVA-sensitized recipients compared with asthma model and controls (p < 0.01). IL-4 levels were significantly less in intranasal immunotherapy group and the OVA-sensitized recipient group when compared with asthma the model group (p < 0.05). This study suggests that intranasal immunotherapy with allergens regulates T-cell responses and ameliorates airway histopathology in sensitized mice, hence, encouraging mucosal tolerance induction as a suitable treatment of allergic diseases.
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Keywords: Allergy; IFN-gamma; IL-10; T-helper cells; TH1 cells; TH2 cells; intranasal immunotherapy; mucosal immunotherapy; murine; ovalbumin

Document Type: Research Article

Affiliations: 1: Pediatric Department, Faculty of Medicine, Division of Pediatric Allergy and Clinical Immunology, Marmara University, Istanbul, Turkey 2: Department of Pathology, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey

Publication date: July 1, 2008

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma and by having the potential to directly impact the quality of patient care. AAP welcomes the submission of original works including peer-reviewed original research and clinical trial results. Additionally, as the official journal of the Eastern Allergy Conference (EAC), AAP will publish content from EAC poster sessions as well as review articles derived from EAC lectures.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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