BD, 554481, Purified NA/LE Rat Anti-Human IL-4 MP4-25D2

The MP4-25D2 monoclonal antibody specifically binds to Interleukin-4 (IL-4). IL-4 is also known as Lymphocyte stimulatory factor 1, B cell stimulatory factor 1 (BSF-1), or B cell growth factor 1 (BCGF-1). IL-4 is produced by activated T cells, basophils, and mast cells. IL-4 is a multifunctional cytokine and growth factor that affects a variety of different target cell types. IL-4 can costimulate T cell proliferation and survival, as well as help drive Th2-like cell differentiation and effector functions. It costimulates B cell proliferation and survival, and can help B cells differentiate into IgG4- or IgE-producing cells. IL-4 can also diminish the proinflammatory functions of monocytes and macrophages. IL-4 exerts its biological effects by binding with high affinity to cell surface CD124 (IL-4Rα chain). CD124 forms signaling IL-4 receptor complexes with either CD132/common γ chain or CD213a1/IL-13Rα1 to form either Type I or Type II IL-4 Receptor complexes, respectively. The immunogen used to generate the MP4-25D2 hybridoma was purified recombinant human IL-4. This is a neutralizing antibody. The MP4-25D2 antibody has been reported to crossreact with IL-4 from rhesus monkeys. The use of the MP4-25D2 antibody for epitope mapping of human IL-4 has been described.
ELISA: Biotin Rat Anti-Human IL-4 antibody (Clone MP4-25D2, Cat. No. 554483) has been reported to be useful as a detection antibody for sandwich ELISA measuring human IL-4 protein levels. Biotinylated MP4-25D2 antibody can be paired with the Purified Mouse Anti-Human IL-4 antibody (Clone 8D4-8, Cat. No. 554515/556917) as the capture antibody, with recombinant human IL-4 (Cat. No. 554605) as the standard. For measuring human IL-4 in complex biological fluids, such as serum or plasma, investigators are highly encouraged to use the BD OptEIA™ Human IL-4 ELISA Set (Cat. No. 555194) or BD OptEIA™ Human IL-4 ELISA Kit II (Cat. No. 550614).
Store undiluted at 4°C. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. This preparation contains no preservatives, thus it should be handled under aseptic conditions.
1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
2. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.