Interleukin (IL)-21 promotes intestinal IgA response to microbiota
نویسندگان
چکیده
منابع مشابه
IL-21 promotes the pathologic immune response to pneumovirus infection.
IL-21 is a cytokine with pleiotropic actions, promoting terminal differentiation of B cells, increased Ig production, and the development of Th17 and T follicular helper cells. IL-21 is also implicated in the development of autoimmune disease and has antitumor activity. In this study, we investigated the role of IL-21 in host defense to pneumonia virus of mice (PVM), which initiates an infectio...
متن کاملIL 21 R ( interleukin 21 receptor )
The IL21R gene is comprised of 9 exons (+2 alternative first exons), spanning 48.4kb on chromosome 16p11 (Parrish-Novak, 2000). The human IL21R promoter region, contained within nucleotides -789 to +195 (relative to the start of exon 1a) induces the high levels of transcription in reporter assays (Ueda, 2002). A critical SP1 binding site is contained in the region from -80 to -20 and is essenti...
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A T cell receptor transgenic mouse line reactive to a microbiota flagellin, CBir1, was used to define mechanisms of host microbiota homeostasis. Intestinal IgA, but not serum IgA, was found to block mucosal flagellin uptake and systemic T cell activation in mice. Depletion of CD4(+)CD25(+) Tregs decreased IgA(+) B cells, total IgA, and CBir1-specific IgA in gut within days. Repletion of T cell-...
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BACKGROUND Perturbation of commensal intestinal microbiota has been associated with several autoimmune diseases. Mice deficient in interleukin-1 receptor antagonist (Il1rn -/- mice) spontaneously develop autoimmune arthritis and are susceptible to other autoimmune diseases such as psoriasis, diabetes, and encephalomyelitis; however, the mechanisms of increased susceptibility to these autoimmune...
متن کاملIL-33 regulates the IgA-microbiota axis to restrain IL-1α-dependent colitis and tumorigenesis.
Inflammatory bowel diseases (IBD) affect over 5 million individuals in the industrialized world, with an increasing incidence rate worldwide. IBD also predisposes affected individuals to development of colorectal cancer, which is a leading cause of cancer-related deaths in adults. Mutations in genes encoding molecules in the IL-33 signaling pathway are associated with colitis and colitis-associ...
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ژورنال
عنوان ژورنال: Mucosal Immunology
سال: 2015
ISSN: 1933-0219,1935-3456
DOI: 10.1038/mi.2014.134