IL-4 Monoclonal Antibody (11B11), PE, eBioscience™, Invitrogen™

Description

• Description: The 11B11 antibody reacts with mouse interleukin-4 (IL-4), a 14 kD cytokine
• The 11B11 antibody is a neutralizing antibody
• Mouse IL-4, also known as BCDF, BCGF-1 and BSF-1, is secreted by activated Th2 and natural killer T cells, and to a lesser extent by Th1 and mast cells
• IL-4 is species-specific and promotes proliferation and differentiation of B cells
• IL-4, in conjunction with other signals such as CD40, induces Ig isotype switching of B cells and the upregulation of surface MHC class II and CD23
• Applications Reported: This 11B11 antibody has been reported for use in intracellular staining followed by flow cytometric analysis
• Applications Tested: This 11B11 antibody is offered in 2 formats: - μg size: has been tested by intracellular staining of Th2 polarized and stimulated mouse splenocytes
• This can be used at less than or equal to 0.125 μg per test
• A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL
• Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test
• It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest
• - test size: has been pre-titrated and tested by intracellular staining of Th2 polarized and stimulated mouse splenocytes
• This can be used at 5 μL (0.06 μg) per test
• Interleukin-4 (IL-4) is a pleiotropic, immune-modulatory cytokine produced by activated T cells, and serves as a ligand for interleukin 4 receptor
• IL-4 has been found to have the broadest range of actions
• The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13
• STAT6, a signal transducer and activator of transcription, has been shown to play an important role in mediating the immune regulatory signal of IL-4
• The IL-4 gene, IL-3, IL-5, IL-13, and CSF2 form a cytokine gene cluster on chromosome 5q
• In particular, IL-4 is located in close proximity to IL13 on the chromosome
• Further, the IL-4 gene, IL13 and IL5 are found to be coordinated by several long-range regulatory elements over a 120 kilobase range on the chromosome
• IL-4 delta 2 is a known splice variant of IL-4.