Interleukin-4 (IL-4), also known as B-cell stimulatory factor 1 (BSF-1) and lymphocyte stimulatory factor 1 is a glycosylated protein with three intra-chain disulfide bonds. IL-4 is produced by Th2 cells and participates in activation of B-cells and other cell types. IL-4 also stimulates DNA synthesis, and it enhances the expression of IgE and IgG1. IL-4 decreases the production of Th1 cells, macrophages, IFN-γ, and IL-12. It is associated with severe asthma among other disorders.


IL-4 Singleplex Products

Our IL-4 immunoassays provide fast, accurate, reproducible, and highly sensitive measurements of IL-4. MSD’s MULTI-ARRAY technology uses simple protocols, requires minimal sample, and quantifies analyte concentration over a wide dynamic range.


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IL-4 Multiplex Products

Our multiplex panels let you process up to 10 analytes simultaneously in each well of a MULTI-SPOT microplate. They provide the same outstanding performance as our singleplex immmunoassays while saving money, sample, and time.


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