- PN: A311121
45x Ab-conjugated beads (S4P4 - Rat IL-4 Ab-bead). PN: A311121A. One vial containing 100 µL of anti-rat IL-4 conjugated to AimPlex Bead S4P4.
25x Biotin-detection Ab (Rat IL-4 Biotin-dAb). PN: A311121B. One vial containing 100 µL of biotinylated anti-rat IL-4.
Lyophilized Standard Mix - Rat Group 1 Panel A, 7-Plex. PN: RG10007. One vial containing lyophilized recombinant rat IFNγ, IL-2, IL-4, IL-6, IL-10, IL-17A, and TNFα. Note: If multiple analyte kits on the above target list are ordered as a panel, only one vial of standard mix is supplied for those analyte kits.
STORAGE: 2-8 C in the dark.
IMPORTANT: Sodium azide forms explosive compounds with heavy metals. These products contain <0.05% (w/w) azide which with repeated contact with lead and copper commonly found in plumbing drains may result in the buildup of shock sensitive compounds. Dispose in accordance with regulations from your institute.
APPLICATION: Optimal antibody pair and antigen standard for assaying Rat IL-4. Can be multiplexed with other analytes in Rat Group 1. To be used in conjunction with the AimPlex Mouse/Rat Basic Kit (PN: P200201) and a diluent kit. Refer to the AimPlex Multiplex Immunoassay User Manual and kit inserts for the assay procedure.
For Research Use Only. Not for use in diagnostic procedures.
Sample types: Cell culture supernatant, serum, plasma, bodily fluid and tissue/cell lysate
Sensitivity (LOD): < 2 pg/mL
LLOQ: < 5 pg/mL
ULOQ: > 5,000 pg/mL
Standard dose recovery: 70-130%
Intra-assay CV: < 10%
Inter-assay CV: < 20%
Cross-reactivity of analytes in Rat Group 1: Negligible
Sample volume: 15 µL/test
The interleukin 4 (IL4) is a cytokine that induces differentiation of naive helper T cells (Th0 cells) to Th2 cells. Upon activation by IL-4, Th2 cells subsequently produce additional IL-4 in a positive feedback loop. It has many biological roles, including the stimulation of activated B-cell and T-cell proliferation, and the differentiation of B cells into plasma cells. It is a key regulator in humoral and adaptive immunity. IL-4 induces B-cell class switching to IgE, and up-regulates MHC class II production. IL-4 decreases the production of Th1 cells, macrophages, IFN-gamma, and dendritic cell IL-12. Overproduction of IL-4 is associated with allergies. IL-4 also has been shown to drive mitogenesis, dedifferentiation, and metastasis in rhabdomyosarcoma. IL-4, along with other Th2 cytokines, is involved in the airway inflammation observed in the lungs of patients with allergic asthma.
1. Sokol, C.L., Barton, G.M., Farr, A.G. & Medzhitov, R. (2008). "A mechanism for the initiation of allergen-induced T helper type 2 responses". Nat Immunol 9 (3): 310–318. doi:10.1038/ni1558. PMID 18300366.
2. Hershey GK, Friedrich MF, Esswein LA, Thomas ML, Chatila TA (December 1997). "The association of atopy with a gain-of-function mutation in the alpha subunit of the interleukin-4 receptor". N. Engl. J. Med. 337 (24): 1720–5. doi:10.1056/NEJM199712113372403. PMID 9392697. Lay summary – eurekalert.org.
3. Jon Aster, Vinay Kumar, Abul K. Abbas; Nelson Fausto (2009). Robbins & Cotran Pathologic Basis of Disease (8th ed.). Philadelphia: Saunders. p. 54. ISBN 1-4160-3121-9.Hosoyama T, Aslam MI, Abraham J, Prajapati SI, Nishijo K, Michalek JE, Zarzabal LA, Nelon LD, Guttridge DC, Rubin BP, Keller C (May 2011). "IL-4R Drives Dedifferentiation, Mitogenesis, and Metastasis in Rhabdomyosarcoma". Clin Cancer Res 17 (9): 2757–2766. doi:10.1158/1078-0432.CCR-10-3445. PMC 3087179. PMID 21536546.