首页 > Biolegend > Biolegend/Recombinant Human IL-21 carrier-free/10 µg/571202

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Biolegend/Recombinant Human IL-21 carrier-free/10 µg/571202

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DescriptionIL-21 was identified by a functional screening from conditioned medium of activated T cells using Baf3-IL-21R transfectants. In normal B cells, IL-21 can mediate cell proliferation, growth arrest, and terminal differentiation, or apoptosis, depending on their activation status. IL-21 enhances B cell proliferation following incubation with an activating CD40 antibody. This result suggests that IL-21 enhances B cell function following T:B cell interactions. Nevertheless, IL-21 inhibits the proliferation of murine and human B cells stimulated with anti-IgM antibodies. In addition, IL-21 enhances proliferation, cytotoxic activity, and IFNγ production by CD8-effector T cells, and induces terminal differentiation of activated natural killer (NK) cells. Also, IL-21 can drive Th17 responses in conjunction with TGF-β. Nevertheless, IL-21 is not essential for the differentiation of Th17 cells in vitro or in vivo, as it was showed using IL-21 and IL-21R-deficient mice. IL-6 induces the production of IL-21 from CD4 T cells upon TCR stimulation. In addition, IL-6 and IL-21 are key players in the Tfh differentiation, characterized by increased protein expression of both Bcl-6 and CXCR5. IL-21R complex is formed with the IL-21R-alpha chain and the common subunits (γc) shared with other interleukins, such as IL-2, IL-4, IL-7, IL-9, and IL-15.Product Details

美国BioLegend公司是世界著名的流式抗体生产商之一。BioLegend聚集了一批来自BD PharMingen公司的专业人士，建立了一支具有雄厚技术背景的专业队伍。通过其自身的先天优势，以及与世界知名实验室和研究所的良好合作关系，以最合理的价格为生物医药研究的各个前沿领域提供高质量的抗体、试剂盒及其他相关产品