Code | CSB-E11848h |
Size | 96T,5×96T,10×96T |
Price | Request a Quote |
Trial Size |
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Intra-assay Precision (Precision within an assay): CV%<8% | ||||||
Three samples of known concentration were tested twenty times on one plate to assess. | ||||||
Inter-assay Precision (Precision between assays): CV%<10% | ||||||
Three samples of known concentration were tested in twenty assays to assess. |
To assess the linearity of the assay, samples were spiked with high concentrations of human ADAMTS4 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay. | ||||||
| Sample | Serum(n=4) | ||||
1:1 | Average % | 84 | ||||
Range % | 80-92 | |||||
1:2 | Average % | 97 | ||||
Range % | 91-105 | |||||
1:4 | Average % | 96 | ||||
Range % | 92-100 | |||||
1:8 | Average % | 93 | ||||
Range % | 86-98 |
The recovery of human ADAMTS4 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section. | ||||||
Sample Type | Average % Recovery | Range | ||||
Serum (n=5) | 95 | 90-101 | ||||
EDTA plasma (n=4) | 98 | 90-105 |
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed. | |||||||
ng/ml | OD1 | OD2 | Average | Corrected | |||
800 | 2.748 | 2.801 | 2.775 | 2.685 | |||
400 | 2.235 | 2.241 | 2.238 | 2.148 | |||
200 | 1.542 | 1.567 | 1.555 | 1.465 | |||
100 | 0.906 | 0.943 | 0.925 | 0.835 | |||
50 | 0.446 | 0.467 | 0.457 | 0.367 | |||
25 | 0.243 | 0.264 | 0.254 | 0.164 | |||
12.5 | 0.152 | 0.149 | 0.151 | 0.061 | |||
0 | 0.092 | 0.087 | 0.090 |
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The product CSB-E11848h is a sandwich ELISA kit developed to measure levels of human ADAM metallopeptidase with thrombospondin type 1 motif4 (ADAMTS4) in serum, plasma, or tissue homogenates. The enzyme-substrate chromogenic reaction is also used to amplify the signal and quantify the levels of the analyte through the intensity of the colored product. The color intensity positively correlates with the amount of ADAMTS4 bound in the initial step.
ADAMTS4, also known as aggrecanase-1, is expressed prominently in endocrine organs, lungs, and the brain. As a secreted proteinase, ADAMTS4 is involved in inflammation and matrix degradation. It mainly functions to degrade proteoglycans expressed physiologically in smooth muscle cells (SMCs) of blood vessels and the developing heart. Studies have shown that ADAMTS4 is a major aggrecanase in osteoarthritis (OA) synovium and synergistically up-regulated by IL-1α, TNF-α, and TGF-β in OA synovial fibroblasts. It is believed to play a key role in the degradation of cartilage proteoglycan (aggrecan) in OA and rheumatoid arthritis.
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