• Daclizumab ELISA Kit
1 1

AntibodySystem

KDB95803

Daclizumab ELISA Kit

Daclizumab ELISA Kit

Title

Catalog No.: KDB95803

Catalog No. KDB95803
Product name Daclizumab ELISA Kit
Size 96 T
Description PRINCIPLE OF THE ASSAY This assay employs the quantitative competitive enzyme immunoassay technique. Recombinant Human CD25 has been pre-coated onto a microplate. Standards or samples are premixed with biotin-labeled antibody and then pipetted into the wells. Daclizumab in the sample competitively binds to the pre-coated protein with biotin-labeled Daclizumab. After washing away any unbound substances, Streptavidin-HRP is added to the wells. Following a wash to remove any unbound enzyme reagent, a substrate solution is added to the wells and color develops in inversely proportion to the amount of Daclizumab bound in the initial step. The color development is stopped and the intensity of the color is measured.
Applications Used for the quantitative determination of Daclizumab concentration in serum and plasma.
Stability and Storage When the kit was stored at the recommended temperature for 6 months, the signal intensity decreased by less than 20%.
Detection method Colorimetric
Precision CV<20%
Sample type Plasma, Serum
Assay type Quantitative
Sensitivity 15.36 ng/mL
Range 125 - 8,000 ng/mL
Recovery 80-120%
Background Daclizumab (DAC) is a humanized, monoclonal antibody that blocks CD25, a critical element of the high-affinity interleukin-2 receptor (IL-2R). DAC HYP blockade of CD25 inhibits effector T cell activation, regulatory T cell expansion and survival, and activation-induced T-cell apoptosis. Because CD25 blockade reduces IL-2 consumption by effector T cells, it increases IL-2 bioavailability allowing for greater interaction with the intermediate-affinity IL-2R, and therefore drives the expansion of CD56bright natural killer (NK) cells. Furthermore, there appears to be a direct correlation between CD56bright NK cell expansion and DAC HYP efficacy in reducing relapses and MRI evidence of disease activity in patients with RMS in phase II and phase III double-blind, placebo- and active comparator-controlled trials. Therapeutic efficacy was maintained during open-label extension studies. However, treatment was associated with an increased risk of rare adverse events, including cutaneous inflammation, autoimmune hepatitis, central nervous system Drug Reaction with Eosinophilia Systemic Symptoms (DRESS) syndrome, and autoimmune Glial Fibrillary Acidic Protein (GFAP) alpha immunoglobulin-associated encephalitis. As a result, DAC HYP was removed from clinical use in 2018. The lingering importance of DAC is that its use led to a deeper understanding of the underappreciated role of innate immunity in the potential treatment of autoimmune disease.
Alternative Names BIIB019, DAC HYP, CAS: 152923-56-3
Shipping 2-8 ℃
Note For Research Use Only.
전체 세부 정보 보기