Local application of FTY720 to the lung abrogates experimental asthma by altering dendritic cell function Export

@article{citeulike:1332553, abstract = {Airway DCs play a crucial role in the pathogenesis of allergic asthma, and interfering with their function could constitute a novel form of therapy. The sphingosine 1-phosphate receptor agonist FTY720 is an oral immunosuppressant that retains lymphocytes in lymph nodes and spleen, thus preventing lymphocyte migration to inflammatory sites. The accompanying lymphopenia could be a serious side effect that would preclude the use of FTY720 as an antiasthmatic drug. Here we show in a murine asthma model that local application of FTY720 via inhalation prior to or during ongoing allergen challenge suppresses Th2-dependent eosinophilic airway inflammation and bronchial hyperresponsiveness without causing lymphopenia and T cell retention in the lymph nodes. Effectiveness of local treatment was achieved by inhibition of the migration of lung DCs to the mediastinal lymph nodes, which in turn inhibited the formation of allergen-specific Th2 cells in lymph nodes. Also, FTY720-treated DCs were intrinsically less potent in activating naive and effector Th2 cells due to a reduced capacity to form stable interactions with T cells and thus to form an immunological synapse. These data support the concept that targeting the function of airway DCs with locally acting drugs is a powerful new strategy in the treatment of asthma. 10.1172/JCI28295}, author = {Idzko, Marco and Hammad, Hamida and Nimwegen, Menno and Kool, Mirjam and Muller, Tobias and Soullie, Thomas and Willart, Monique A. and Hijdra, Danielle and Hoogsteden, Henk C. and Lambrecht, Bart N.}, citeulike-article-id = {1332553}, citeulike-linkout-0 = {http://dx.doi.org/10.1172/JCI28295}, citeulike-linkout-1 = {http://www.jci.org/cgi/content/abstract/116/11/2935}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/17080194}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=17080194}, day = {1}, doi = {10.1172/JCI28295}, journal = {J. Clin. Invest.}, keywords = {asthma, dc}, month = {November}, number = {11}, pages = {2935--2944}, posted-at = {2007-05-25 16:38:32}, priority = {2}, title = {Local application of FTY720 to the lung abrogates experimental asthma by altering dendritic cell function}, url = {http://dx.doi.org/10.1172/JCI28295}, volume = {116}, year = {2006} }

TY - JOUR ID - citeulike:1332553 L3 - citeulike-article-id:1332553 N2 - Airway DCs play a crucial role in the pathogenesis of allergic asthma, and interfering with their function could constitute a novel form of therapy. The sphingosine 1-phosphate receptor agonist FTY720 is an oral immunosuppressant that retains lymphocytes in lymph nodes and spleen, thus preventing lymphocyte migration to inflammatory sites. The accompanying lymphopenia could be a serious side effect that would preclude the use of FTY720 as an antiasthmatic drug. Here we show in a murine asthma model that local application of FTY720 via inhalation prior to or during ongoing allergen challenge suppresses Th2-dependent eosinophilic airway inflammation and bronchial hyperresponsiveness without causing lymphopenia and T cell retention in the lymph nodes. Effectiveness of local treatment was achieved by inhibition of the migration of lung DCs to the mediastinal lymph nodes, which in turn inhibited the formation of allergen-specific Th2 cells in lymph nodes. Also, FTY720-treated DCs were intrinsically less potent in activating naive and effector Th2 cells due to a reduced capacity to form stable interactions with T cells and thus to form an immunological synapse. These data support the concept that targeting the function of airway DCs with locally acting drugs is a powerful new strategy in the treatment of asthma. 10.1172/JCI28295 IS - 11 JF - J. Clin. Invest. EP - 2944 TI - Local application of FTY720 to the lung abrogates experimental asthma by altering dendritic cell function VL - 116 SP - 2935 KW - asthma KW - dc AU - Idzko, Marco AU - Hammad, Hamida AU - Nimwegen, Menno AU - Kool, Mirjam AU - Muller, Tobias AU - Soullie, Thomas AU - Willart, Monique AU - Hijdra, Danielle AU - Hoogsteden, Henk AU - Lambrecht, Bart PY - 2006/11/01/ UR - http://dx.doi.org/10.1172/JCI28295 ER -