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저자정보
Luciana S. Aragão-França (Fundação Oswaldo Cruz (FIOCRUZ)) Viviane C. J. Rocha (Fundação Oswaldo Cruz (FIOCRUZ)) Andre Cronemberger-Andrade (Universidade Federal de São Paulo) F. H. B. Costa (The University of Texas Health Science Center) José Fernandes Vasconcelos (Fundação Oswaldo Cruz (FIOCRUZ)) Daniel Abensur Athanazio (Universidade Federal da Bahia) Daniela Nascimento Silva (Hospital São Rafael) E. S. Santos (Fundação Oswaldo Cruz (FIOCRUZ)) Cássio Santana Meira (Fundação Oswaldo Cruz (FIOCRUZ)) C. F. Araújo (Universidade Federal da Bahia) Jéssica Vieira Cerqueira (Fundação Oswaldo Cruz (FIOCRUZ)) Fabíola Cardillo (Fundação Oswaldo Cruz (FIOCRUZ)) Neuza Maria Alcântara-Neves (Universidade Federal da Bahia) Milena Botelho Pereira Soares (Fundação Oswaldo Cruz (FIOCRUZ)) Lain C. Pontes-de-Carvalho (Fundação Oswaldo Cruz (FIOCRUZ))
저널정보
대한천식알레르기학회(구 대한알레르기학회) Allergy, Asthma & Immunology Research Allergy, Asthma & Immunology Research Vol.10 No.4
발행연도
2018.1
수록면
406 - 419 (14page)

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Purpose: The use of tolerogenic dendritic cells (TolDCs) to control exacerbated immune responses may be a prophylactic and therapeutic option for application in autoimmune and allergic conditions. The objective of this work was to evaluate the effects of TolDC administration in a mouse model of allergic airway inflammation caused by mite extract. Methods: Mouse bone marrow-derived TolDCs were induced by incubation with granulocyte- macrophage colony-stimulating factor (GM-CSF) and dexamethasone, and then characterized by flow cytometry and cytokine production by enzyme- linked immunosorbent assay (ELISA). For the in vivo model of Blomia tropicalis-induced allergy, mice transplanted with antigen-pulsed TolDCs were sensitized intraperitoneally with B. tropicalis mite extract (BtE) adsorbed to aluminium hydroxide. After challenge by nasal administration of BtE, bronchoalveolar lavage fluid (BALF), lungs, spleen and serum were collected for analysis. Results: Induction of TolDCs was efficiently achieved as shown by low expression of major histocompatibility complex (MHC) II, programmed death-ligand (PD-L) 2 and pro-inflammatory cytokine production, and up-regulation of interleukin (IL)-10, upon LPS stimulation in vitro. Transplantation of 1 or 2 doses of BtE-pulsed TolDCs reduced the number of inflammatory cells in BALF and lungs as well as mucus deposition. Moreover, compared to saline-injected controls, TolDC-treated mice showed lower serum levels of anti-BtE immunoglobulin E (IgE) antibodies as well as reduced Gata3 and IL-4 gene expression in the lungs and decreased IFN-γ levels in the supernatant of splenocyte cultures Transplantation of TolDCs increased the percentage of the regulatory T cells in the spleen and the lungs. Conclusions: Preventive treatment with TolDCs protects against dust mite-induced allergy in a mouse model, reinforcing the use of tolerogenic dendritic cells for the management of allergic conditions.

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