Ustekinumab ELISA Assay Kit
The Ustekinumab ELISA Assay Kit is For Research Use Only
Size: 12×8 wells
Sensitivity: <5 ng/mL
Standard Range: 5-320 ng/ml
Incubation Time: 2.5 hours
Sample Type: Serum, Plasma, Cell Culture Supernatants
Sample Size: 100 µL
Alternative Name: Stelara
Assay Background for Ustekinumab ELISA Assay
Ustekinumab is a human monoclonal antibody. It is directed against interleukin 12and interleukin 23, naturally occurring proteins that regulate the immune system and immune-mediated inflammatory disorders. In two Phase III trials for moderate to severe psoriasis, the longest >76 weeks, ustekinumab was safe and effective. A third Phase III trial, ACCEPT, compared the efficacy and safety of ustekinumab with etanercept in the treatment of moderate to severe plaque psoriasis. This trial found a significantly higher clinical response with ustekinumab over the 12-week study period compared to high-dose etanercept. It also demonstrated the clinical benefit of ustekinumab among patients who failed to respond to etanercept. Ustekinumab is approved in Canada, Europe and the United States to treat plaque psoriasis.
Sample Preparation and Storage:
Blood is taken by venipuncture. Serum is separated after clotting by centrifugation. Plasma can be used, too. Lipaemic, hemolytic or contaminated samples should not be run. Repeated freezing and thawing should be avoided. If samples are to be used for several assays, initially aliquot samples and keep at – 20°C. For Cell Culture Supernatant – If necessary, centrifuge to remove debris prior to analysis. Samples can be stored at -20°C or -80⁰C. Avoid repeated freeze-thaw cycles.
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