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AVANTI POLAR LIPIDS , CYGNUS , LARODAN , ADIPOGEN , MYBIOSOURCE , SERVA NORDMARK, BIOWORLD, EDGEBIO , PANREAC APPLICHEM
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Product description: Recombinant protein. Mouse CD40L (aa 115-260) is fused at the N-terminus to mouse ACRP30headless (aa 18-111) and a FLAG®-tag. Binds to human and mouse CD40. Endotoxin: <0.05EU/µg purified protein (LAL test; Lonza). Lyophilized. Contains PBS. The costimulatory molecule CD40, a member of the tumor necrosis factor (TNF) receptor superfamily, critically regulates B cell and T cell function in adaptive immunity and inflammation by interacting with CD40L (CD154). CD40L mediates a range of activities on B cells, including induction of activation-associated surface antigen, entry into cell cycle, isotype switching, immunoglobulin secretion and memory generation. CD40-CD40L interaction also plays important roles in monocyte activation and DC maturation. MultimericCD40L is a high activity construct in which two trimeric CD40 ligands are artificially linked via the collagen domain of ACRP30. This construct very effectively simulates the natural membrane-assisted aggregation of CD40L in vivo. It provides a simple and equally potent alternative to CD40L+enhancer combinations. MultimericCD40L has shown to suppress alum-induced IL-1beta release and caspase-1 activation in a dose-, CD40- and time dependent manner, without affecting BMDM (bone marrow-derived macrophages) viability. It also effectively suppressed the inflammasome function triggered by NLRP3 activators. The secretion of caspase-1 independent inflammatory mediators has been shown to be unaltered or even enhanced. MultimericCD40L enhances B cell proliferation.
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