title: Differential regulation of T helper phenotype development by interleukins 4 and 10 in an alpha beta T-cell-receptor transgenic system.
abstract: To address the mechanisms controlling T helper (Th) phenotype development, we used DO10, a transgenic mouse line that expresses the alpha beta T-cell receptor from an ovalbumin-reactive T hybridoma, as a source of naive T cells that can be stimulated in vitro with ovalbumin peptide presented by defined antigen-presenting cells (APCs). We have examined the role of cytokines and APCs in the regulation of Th phenotype development. Interleukin 4 (IL-4) directs development toward the Th2 phenotype, stimulating IL-4 and silencing IL-2 and interferon gamma production in developing T cells. Splenic APCs direct development toward the Th1 phenotype when endogenous IL-10 is neutralized with anti-IL-10 antibody. The splenic APCs mediating these effects are probably macrophages or dendritic cells and not B cells, since IL-10 is incapable of affecting Th phenotype development when the B-cell hybridoma TA3 is used as the APC. These results suggest that early regulation of IL-4 and IL-10 in a developing immune response and the identity of the initiating APCs are critical in determining the Th phenotype of the developing T cells.
authors.affiliation: Department of Pathology, Washington University School of Medicine, St. Louis, MO 63110.
authors.forename: C S
authors.initials: CS
authors.lastname: Hsieh
authors.forename: A B
authors.initials: AB
authors.lastname: Heimberger
authors.forename: J S
authors.initials: JS
authors.lastname: Gold
authors.forename: A
authors.initials: A
authors.lastname: O'Garra
authors.forename: K M
authors.initials: KM
authors.lastname: Murphy
mesh_terms: D000818:Animals; D000938:Antigen-Presenting Cells / Q000276:immunology*; D002454:Cell Differentiation; D004305:Dose-Response Relationship, Drug; D007114:Immunization; D007371:Interferon-gamma / Q000378:metabolism; D016753:Interleukin-10 / Q000494:pharmacology*; D015847:Interleukin-4 / Q000494:pharmacology*; D051379:Mice; D008822:Mice, Transgenic; D010641:Phenotype; D016693:Receptors, Antigen, T-Cell, alpha-beta / Q000235:genetics*; D016176:T-Lymphocyte Subsets / Q000276:immunology*; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*
chemical_list: D016693:Receptors, Antigen, T-Cell, alpha-beta; D016753:Interleukin-10; D015847:Interleukin-4; D007371:Interferon-gamma