title: Injection with interleukin-4-secreting fibroblasts efficiently induces T helper type 2 cell-dominated immune response.
abstract: To determine whether the paracrine secretion of interleukin-4 (IL-4) can efficiently induce T helper type 2 (Th2) cell-dominated immune response, BLK fibroblasts were stably transfected to secrete IL-4 (750 units/10(6) cells/48 h). Their effects on T helper cell-mediated immune response were investigated in ovalbumin (OVA)-primed C57BL/6 mice, and were compared with those of free recombinant IL-4. Injection with IL-4-secreting fibroblasts (BLK/IL-4) significantly increased anti-OVA IgG1 production in OVA-primed mice. In addition, the BLK/IL-4 cells were more effective than free recombinant IL-4 in decreasing OVA-specific IFN-gamma production and in increasing OVA-specific IL-4 production by splenic CD4(+) T cells. This work suggests that IL-4-secreting fibroblasts can efficiently induce Th2 cell-dominated immune response and may be beneficial in the treatment of diseases caused by undesired Th1 cell-dominated responses.
authors.affiliation: College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Kwangju, South Korea. taekim@chonnam.ac.kr
authors.forename: T S
authors.initials: TS
authors.lastname: Kim
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
authors.forename: S Y
authors.initials: SY
authors.lastname: Hwang
mesh_terms: D000818:Animals; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology / Q000378:metabolism; D002460:Cell Line; D004306:Dose-Response Relationship, Immunologic; D005260:Female; D005347:Fibroblasts / Q000276:immunology / Q000378:metabolism* / Q000637:transplantation*; D007274:Injections, Intraperitoneal; D007371:Interferon-gamma / Q000037:antagonists & inhibitors / Q000096:biosynthesis; D015847:Interleukin-4 / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism* / Q000502:physiology; D051379:Mice; D008807:Mice, Inbred BALB C; D010047:Ovalbumin / Q000008:administration & dosage / Q000276:immunology; D011994:Recombinant Proteins / Q000494:pharmacology; D018418:Th2 Cells / Q000276:immunology* / Q000378:metabolism; D014162:Transfection
chemical_list: D011994:Recombinant Proteins; D015847:Interleukin-4; D007371:Interferon-gamma; D010047:Ovalbumin