The 11B11 antibody binds to mouse Interleukin-4 (IL-4), a 14 kDa cytokine that is largely secreted by activated T cells of the Th2 subset, and to some degree by NKT and mast cells. This cytokine acts as a stimulatory factor for B cells, inducing their proliferation and differentiation, as well as playing a role in immunoglobulin class-switching. IL-4 may also provide autocrine stimulation for T cells, and affect the function of antigen presenting cells such as macrophages and dendritic cells. IL-4 can bind and signal via three cell surface receptor types: CD124 by itself, CD124 in combination with the common gamma chain (type I complex), or CD124 combined with CD213a1 (type II complex).
The 11B11 antibody is widely used for detection of intracellular levels of IL-4 protein by flow cytometry, as well as for analysis of soluble cytokine as measured by ELISA, and in functional assays to neutralization cytokine-
|Name||Purified Anti-Mouse IL-4 (11B11)|
|Alternative Names||IL4, Interleukin-4, BSF-1|
|Isotype||Rat IgG1, kappa|
|Application||Flow Cytometry, IF, IHCF|
|Citations*||Cook PC, Jones LH, Jenkins SJ, Wynn TA, Allen JE, and MacDonald AS. 2012. Proc. Natl. Acad. Sci. 109: 9977-9982. (in vivo blocking)
Altin JA, Goodnow CC, and Cook MC. 2012. J. Immunol. 5478-5488. (Flow cytometry)
Tofukuji S, Kuwahara M, Suzuki J, Ohara O, Nakayama T, and Yamashita M. 2012. J. Immunol. 188: 4846-4857. (in vitro Th1 polarization)
Weber KS, Hildner K, Murphy KM and Allen PM. 2010 J. Immunol. 185: 2836-2846 (in vitro Th1 polarization, ELISA)
Odobasic D, Kitching AR, Semple TJ, Timoshanko JR, Tipping PG, and Holdsworth SR. 2005. J. Am. Soc. Nephrol. 16: 2012-2022. (in vivo activation, Immunofluorescence microscopy – frozen tissue, Immunohistochemistry – frozen tissue)
Application Key:FC = Flow Cytometry; FA = Functional Assays; ELISA = Enzyme-Linked Immunosorbent Assay; ICC = Immunocytochemistry; IF = Immunofluorescence Microscopy; IHC = Immunohistochemistry; IHC-F = Immunohistochemistry, Frozen Tissue; IHC-P = Immunohistochemistry, Paraffin-Embedded Tissue; IP = Immunoprecipitation; WB = Western Blot; EM = Electron Microscopy
*Tonbo Biosciences tests all antibodies by flow cytometry. Citations are provided as a resource for additional applications that have not been validated by Tonbo Biosciences. Please choose the appropriate format for each application and consult the Materials and Methods section for additional details about the use of any product in these publications.