产品号 #100-1146_C
For detection and measurement of human granulocyte-macrophage colony-stimulating factor
For detection and measurement of human granulocyte-macrophage colony-stimulating factor
The Human GM-CSF ELISA Kit is designed for the quantitative detection and measurement of granulocyte-macrophage colony-stimulating factor (GM-CSF), also known as CSF2, in cell culture supernatants. GM-CSF is secreted by activated T cells, B cells, macrophages, monocytes, endothelial cells, and fibroblasts in response to proinflammatory stimuli. The GM-CSF receptor, CSF2R, is composed of one α-chain and β-chain. The β-chain is shared with interleukin 3 (IL-3) and 5 (IL-5) receptors with low and high affinity binding to GM-CSF. The active form of GM-CSF exists as a homodimer and the encoding gene has been localized to a cluster of genes at chromosome region 5q31, which is known for 5q minus (5q-) syndrome and myelogenous leukemia. The overexpression of GM-CSF may be a critical indicator for inflammatory and autoimmune diseases such as arthritis, nephritis, and psoriasis.
The assay is based on a sandwich ELISA method, in which samples are added to ELISA strip plates pre-coated with capture antibodies specific for human GM-CSF. The captured GM-CSF is detected by the addition of a horseradish peroxidase (HRP)-conjugated detection antibody. The addition of the chromogenic enzyme substrate 3,3’5,5’ tetramethylbenzidine (TMB) results in a colored product with an intensity directly proportional to the concentration of human GM-CSF in the sample.
Subtype
Complete Kits
Cell Type
B Cells, Endothelial Cells, Fibroblasts, Macrophages, Monocytes, T Cells
Species
Human
Application
ELISA
Area of Interest
Immunology, Infectious Diseases
Figure 1. Representative Standard Curve Of Human GM-CSF (CSF2)
The reportable range (the concentration range in which measurement of the analyte can be done with the highest precision, accuracy, and linearity) of this assay is 6.25 - 400 pg/mL. The lower limit of detection (LLD) of this assay is 5.43 pg/mL. This is the analyte concentration with absorbance three standard deviations higher than the zero standard. A mid-curve recovery of 98 - 103% was determined by spiking defined amounts of analyte standard into cell culture supernatant in repeated experiments. The intra-assay precision of this assay is 4.4% (CV). The Inter-assay precision of this assay is 1.8% (CV).
Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.
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