The mIL4R-M1 monoclonal antibody specifically binds to CD124 which is also known as the α subunit of the mouse Interleukin-4 Receptor (IL-4Rα). The mouse IL-4Rα is a 140 kDa transmembrane glycoprotein that is expressed by B and T lymphocytes and a variety of other hematopoietic and nonhematopoietic cells and cell lines. The cell surface IL-4Rα chain binds IL-4 with high affinity and associates with either the common γ chain (IL-4Rα/γc, aka, type I IL-4R) or the IL-13 receptor alpha subunit (IL-4Rα/IL-13Rα, aka, type II IL-4R complex) to form two distinct types of signal-transducing IL-4R complexes. The type I IL-4 receptor complex specifically binds IL-4 whereas the type II IL-4R binds and transduces signals from either IL-4 or IL-13. The mIL4R-M1 antibody blocks IL-4 binding to cells and is reported to be a potent inhibitor of IL-4's biological activities. The mIL4R-M1 antibody also recognizes naturally-occurring, soluble truncated forms of IL-4Rα (sIL-4R) that result either from enzymatic cleavage of the cell surface extracellular IL-4Rα domain or from differential mRNAsplicing and secretion by cells. These sIL-4R retain their high-affinity ligand binding domain and appear to either enhance or inhibit IL-4-mediated functions depending on the relative local levels of IL-4 and sIL-4R. Expression of cell surface CD124 by normal splenocyres from BALB/c and C57BL/6 mice. Spleen cells from BALB/c (left panel) and C57BL/6 (right panel) mice were treated with ACK lysis buffer, were washed, and were labeled with purified Fc Block (Cat. No. 553142, Rat IgG2b anti-mouse CD16/CD32) to block mouse Fc receptors. The cells were then stained with mIL4R-M1 (1 μg) followed by biotinylated RG7/1.30 (mouse anti-rat IgG2α, 0.25 μg, Cat. No. 553894) and streptavidin phycoerythrin (0.015 μg, Cat. No. 554061) in a three-layer staining protocol to amplify immunofluorescent signals. Staining with the mIL4R-M1 antibody (filled histograms) is compared to staining with the secondary reagents alone (open histograms).
BD Pharmingen™ Purified Rat Anti-Mouse CD124 - Purified - Clone mIL4R-M1 - Isotype Rat IgG2a, κ - Reactivity Ms - 0.1 mg
Purification
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Stock
4 °C
Stockage commentaire
Store undiluted at 4°C.
Gessner, Röllinghoff: "Biologic functions and signaling of the interleukin-4 receptor complexes." dans: Immunobiology, Vol. 201, Issue 3-4, pp. 285-307, (2000) (PubMed).
Kubo, Yamashita, Abe, Tada, Okumura, Ransom, Nakayama: "CD28 costimulation accelerates IL-4 receptor sensitivity and IL-4-mediated Th2 differentiation." dans: Journal of immunology (Baltimore, Md. : 1950), Vol. 163, Issue 5, pp. 2432-42, (1999) (PubMed).
Hassuneh, Nagarkatti, Nagarkatti: "Evidence for the participation of interleukin-2 (IL-2) and IL-4 in the regulation of autonomous growth and tumorigenesis of transformed cells of lymphoid origin." dans: Blood, Vol. 89, Issue 2, pp. 610-20, (1997) (PubMed).
Chilton, Fernandez-Botran: "Production of soluble IL-4 receptors by murine spleen cells is regulated by T cell activation and IL-4." dans: Journal of immunology (Baltimore, Md. : 1950), Vol. 151, Issue 11, pp. 5907-17, (1994) (PubMed).
Feldman, Ruhl, Bickel, Finbloom, Pluznik: "Regulation of interleukin-4 receptors on murine myeloid progenitor cells by interleukin-6." dans: Blood, Vol. 78, Issue 7, pp. 1678-84, (1991) (PubMed).