Rat IL-4 ELISA Kit
Product Specifications
- Catalogue N°
- 865.020.048 - 1 x 48 Discovery (pre-coated)
865.020.096 - 1 x 96 (pre-coated)
865.020.192 - 2 x 96 (pre-coated) - Assay Range
- 31.25 pg/ml - 1000 pg/ml
- Sensitivity
- 15 pg/ml
- Target species
- Rat
- Specificity
- Recognizes both natural and recombinant rat IL-4
- Incubation
- 4h45
- Sample Type
- Serum, Cell culture supernatant
- Sample Size
- 100 µl
- Cross Reaction
- No cross reactivity with other rat cytokines
- Kit Content
- Diaclone ELISA Kits include pre-coated strip plates, biotinylated secondary antibody, standards, controls (where applicable), buffers, streptavidin-HRP, TMB, stop reagents and a detailed procedure.
References
- Cortijo, J. et al., Br J Pharmacol.,2006; 147(6): 661-70 - Pubmed link
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BACKGROUND
IL-4 mediates its function by binding to receptors expressed on target cells. The IL-4 receptors exhibit an affinity of approximately 10-10 M.
Receptors exist on freshly prepared B and T lymphocytes and macrophages, as well as on various cell lines including lymphoid cells, mast cell lines, a variety of other hematopoietic cell lines, fibroblasts and stromal cell lines. On T and B cells, receptors are present in low numbers (appr. 400), which are reported to be upregulated by IL-2 and IL-4.
IL-4 is produced by a particular subset of T helper cells, the TH2 cells. These cells tend to make a specific set of lymphokines including IL-4, IL-5, IL-6, IL-10, IL-13 and GM-CSF and fail to produce IL-2, IFNg, and lymphotoxin (TNFb). Apart from T cells, it has been shown that mast cells can produce IL-4.
IL-4 exerts numerous effects on various hematopoietic cell types. On B cells, IL-4 promotes immunological class switching to IgE and IgG1 isotypes and upregulates MHC class II and CD23 expression. It can promote survival, growth, and differentiation of both T and B lymphocytes, mast cells, and endothelial cells.
In addition, IL-4 can inhibit the production of TNF, IL-1, and IL-6 by macrophages.
Version 7 - 11.21
For research use only
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