IL-21 Enhances Phagocytosis in Mononuclear Phagocyte Cells: Identification of Spleen Tyrosine Kinase as a Novel Molecular Target of IL-21

Tyrosine Kinase as a Novel Molecular Target Phagocyte Cells: Identification of Spleen IL-21 Enhances Phagocytosis in Mononuclear

IL-21 induces IL-22 production in CD4+ T-cells

Interleukin (IL)-22 produced by innate lymphoid cells (ILCs) and CD4+ T cells plays an important role in host defence and mucosal homeostasis, thus it is important to investigate the mechanisms that regulate IL-22 production. We investigated the regulation IL-22 production by CD4+ T cells. Here we show that IL-21 triggers IL-22, but not IL-17 production by CD4+ T cells. STAT3, activated by IL-2...

IL-21/IL-21R in Autoimmune Diseases

Interleukin-21 (IL-21), the member of the γ-chain-related cytokine family, and its receptor (IL-21R), has been evidenced involving in the immune response, resulting in the development of autoimmune diseases, infectious diseases and tumors. This short communication reviews an overall outline of its genetic variants and expression in autoimmune diseases. It focuses on a series of recent studies t...

Identification of cellular intermediates and molecular pathways induced by IL-21 in human B cells.

The complex process of B cell development is controlled by multiple factors from the surrounding microenvironment including cytokines. IL-21 is a recently identified type I cytokine, mainly produced by activated CD4(+) T cells. It has been shown to promote differentiation of human primary B cells into Ig-secreting plasma cells. The objective of our study was to describe cellular intermediates t...

IL 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...