کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9236724 1207488 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pristane-induced autoimmunity in germ-free mice
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Pristane-induced autoimmunity in germ-free mice
چکیده انگلیسی
Hypergammaglobulinemia and autoantibodies are reduced in pristane-treated specific pathogen-free mice vs. conventionally housed controls, consistent with the role of microbial stimulation in this model. To determine whether microbial stimulation is required, BALB/c mice housed under germ-free conditions were treated i.p. with sterile PBS or pristane and examined 6 months later. As in conventional mice, pristane-treated germ-free mice developed peritoneal granulomas and hypergammaglobulinemia with increased IgG2a/IgG1 ratios. LPS stimulation induced more IL-6, IL-12, and TNF-α, and anti-CD3 induced more IFN-γ and IL-4 by peritoneal cells from pristane-treated mice vs. control. Anti-nRNP/Sm and -Su autoantibodies were found in 40% and 43%, respectively, of pristane-treated germ-free mice by immunoprecipitation. Thus, bacterial stimulation was not required for lupus autoantibodies, peritoneal granuloma formation, hypergammaglobulinemia, or cytokine overproduction. Although microbial stimulation acts synergistically with pristane, these results clearly indicate that pristane does not act merely by increasing exposure to microbial products such as LPS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Immunology - Volume 114, Issue 2, February 2005, Pages 110-118
نویسندگان
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