Human IL-23 Quantikine ELISA Kit
R&D Systems, part of Bio-Techne | Catalog # D2300B
Key Product Details
Assay Length
4.5 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (100 µL), Serum (100 µL), EDTA Plasma (100 µL), Heparin Plasma (100 µL)
Sensitivity
16.3 pg/mL
Assay Range
39-2500 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
Product Summary for Human IL-23 Quantikine ELISA Kit
The Quantikine Human IL-23 Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human IL-23 in cell culture supernates, serum, and plasma. It contains Sf 21-expressed recombinant human IL-23 and has been shown to accurately quantitate the recombinant factor. Results obtained for naturally occurring human IL-23 showed linear curves that were parallel to the standard curves obtained using the kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human IL-23.
Product Specifications
Assay Type
Solid Phase Sandwich ELISA
Format
96-well strip plate
Measurement
Quantitative ELISA
Detection Method
Colorimetric - 450nm (TMB)
Conjugate
HRP
Reactivity
Human
Specificity
Natural and recombinant human IL-23. This assay does not recognize free p19 or p40 subunits.
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules. < 50% cross-species reactivity observed with species tested.
Interference
No significant interference observed with available related molecules.
Precision
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
Cell Culture Supernates, EDTA Plasma, Heparin Plasma, Serum
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 40 | 40 | 40 |
| Mean (pg/mL) | 180 | 496 | 1170 | 203 | 526 | 1298 |
| Standard Deviation | 12.0 | 23.2 | 49.6 | 13.3 | 45.1 | 78.5 |
| CV% | 6.7 | 4.7 | 4.2 | 6.6 | 8.6 | 6.0 |
Recovery for Human IL-23 Quantikine ELISA Kit
The recovery of human IL-23 spiked to levels throughout the range of the assay in various matrices was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 93 | 87-107 |
| EDTA Plasma (n=4) | 95 | 86-106 |
| Heparin Plasma (n=4) | 93 | 85-99 |
| Serum (n=4) | 98 | 88-105 |
Linearity
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of IL-23 were serially diluted with the Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Scientific Data Images for Human IL-23 Quantikine ELISA Kit
Human IL-23 ELISA Standard Curve
Preparation and Storage
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: IL-23
IL-23 (Interleukin-23) is a disulfide-linked cytokine composed of a p19 subunit that is unique to IL-23 and a p40 subunit that is shared with IL-12. It is produced by activated macrophages, microglia, and monocyte-derived dendritic cells in response to pathogens. IL-23 induces the earliest recruitment of neutrophils to the site of infection and promotes the development and maintenance of Th17 cells. It also enhances the development of Th17 mediated autoimmunity and tumor progression. IL-23 signals through a receptor complex consisting of IL-12 R beta 1 and IL-23 R. This complex is expressed in mouse Th1 and Th2 cells, bone marrow dendritic cells, activated macrophages and CD4+ CD45Rb(low) memory T cells.
Long Name
Interleukin 23
Alternate Names
IL-23 p19/IL-12 p40, IL-23p19/IL-12p40, IL23, SGRF
Gene Symbol
IL23A
Additional IL-23 Products
Product Documents for Human IL-23 Quantikine ELISA Kit
Product Specific Notices for Human IL-23 Quantikine ELISA Kit
For research use only
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⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.