title: Thymic stromal lymphopoietin is produced by dendritic cells.
abstract: Thymic stromal lymphopoietin (TSLP) is a type 1 cytokine that contributes to lymphopoiesis and the development of asthma and atopic dermatitis. TSLP acts on multiple lineages, including dendritic cells (DCs), T cells, NKT cells, eosinophils, and mast cells, mediating proliferation and survival and linking innate and adaptive immune responses. TSLP is produced by a range of cells, including epithelial cells, fibroblasts, stromal cells, and keratinocytes. DCs are important primary targets of TSLP, and we unexpectedly demonstrated that DCs also produce TSLP in response to TLR stimulation and that this is augmented by IL-4. Moreover, we demonstrated that when mice were challenged with house dust mite extract, lung CD11c(+) DCs expressed TSLP mRNA at an even higher level than did epithelial cells. These data suggested that DCs not only respond to TSLP but also are a source of TSLP during pathogen and/or allergen encounter.
authors.affiliation: Laboratory of Molecular Immunology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA.
authors.forename: Mohit
authors.initials: M
authors.lastname: Kashyap
authors.forename: Yrina
authors.initials: Y
authors.lastname: Rochman
authors.forename: Rosanne
authors.initials: R
authors.lastname: Spolski
authors.forename: Leigh
authors.initials: L
authors.lastname: Samsel
authors.forename: Warren J
authors.initials: WJ
authors.lastname: Leonard
mesh_terms: D000485:Allergens / Q000008:administration & dosage / Q000096:biosynthesis; D000818:Animals; D001854:Bone Marrow Cells / Q000276:immunology / Q000378:metabolism; D002478:Cells, Cultured; D016207:Cytokines / Q000096:biosynthesis / Q000235:genetics / Q000276:immunology*; D003713:Dendritic Cells / Q000276:immunology* / Q000378:metabolism*; D006801:Humans; D015847:Interleukin-4 / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology; D051379:Mice; D008807:Mice, Inbred BALB C; D018345:Mice, Knockout; D009000:Monocytes / Q000276:immunology / Q000378:metabolism; D039981:Pyroglyphidae / Q000276:immunology; D020545:Respiratory Mucosa / Q000166:cytology / Q000276:immunology / Q000378:metabolism; D013154:Spleen / Q000166:cytology / Q000276:immunology / Q000378:metabolism; D017154:Stromal Cells / Q000276:immunology / Q000378:metabolism; D013950:Thymus Gland / Q000166:cytology / Q000276:immunology* / Q000378:metabolism*; D000094632:Thymic Stromal Lymphopoietin
chemical_list: D000485:Allergens; D016207:Cytokines; D015847:Interleukin-4; D000094632:Thymic Stromal Lymphopoietin