title: First line of defense: the role of the intestinal epithelium as an active component of the mucosal immune system.
authors.affiliation: Gastroenterology Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
authors.forename: R S
authors.initials: RS
authors.lastname: Pitman
authors.forename: R S
authors.initials: RS
authors.lastname: Blumberg
mesh_terms: D017951:Antigen Presentation / Q000276:immunology; D018925:Chemokines / Q000276:immunology; D016207:Cytokines / Q000276:immunology; D004847:Epithelial Cells / Q000276:immunology*; D006801:Humans; D018928:Immunity, Mucosal; D007413:Intestinal Mucosa / Q000276:immunology*; D018121:Receptors, Cytokine / Q000276:immunology
chemical_list: D018925:Chemokines; D016207:Cytokines; D018121:Receptors, Cytokine