The cells of the pulmonary immune response: overview of the pulmonary immune response, Laurent P. Nicod; antigen-presenting cells, Henk C. Hoogsteden, Hamida Hammad, and Bart N. Lambrecht; CD4 T lymphocytes in allergic asthma, Mark Larche and A.B. Kay; B-Cell differentiation and IgE synthesis, Hamida Hammad and Bart N. Lambrecht; immune functions of mast cells and basophils, Sarbjit S. Saini; immune functions of human eosinophils, Paul J. Coffer, Patricia M. R.E. Silva, Marco A. Martins, and Leo Koenderman; immune functions of airway epithelium, Sundeep S. Salvi and Stephen T. Holgate. Regulation processes in the pulmonary immune response: tolerance to inhaled antigen, Elizabeth R. Jarman, Gerard F. Hoyne and Jonathan R. Lamb; sensitization to inhaled allergen, Susan L. Prescott; polarization of T-helper cells, Martien L. Kapsenberg, Eddy A. Wierenga, Pawel Kalinski and Esther C. De Jong; CD28 and B7 superfamily members - costimulation and regulation of T-cell function, Anthony J. Coyle, Stephen Manning, and Jose-Carlos Gutierrez-Ramos; control of lymphocyte trafficking through the lung, Reinhard Pabst and Thomas Tschernig; neuroimmune interactions in the pathogenesis of allergic asthma, Armin Braun, Wolfgang A. Nockher, and Harald Renz. Integrated immunology of airway inflammation: immunopathology of atopic and nonatopic asthma, Marc Humbert, Sun Ying, and Douglas S. Robinson; immunology of eosinophilic airway inflammation - what the animal models teach us, Bart N. Lambrecht, Leonie S. Van Rijt, and Harmjan Kuipers; regulation of cellular traffic in the asthmatic lung, Clare M. Lloyd and Jose-Carlos Gutierrez-Ramos; cytokine regulation of bronchial hyperresponsiveness, Johan C. Kips and Romain A. Pauwels; immunological functions of inflammatory mediators, Domenico Spina, Clive Page, Anthony P. Sampson, and Zuzana Diamant; virally induced eosinophilic airway inflammation, Wieslawa Olszewska and Peter J.M. Openshaw; airway remodelling as the outcome of a chronic immu