Journal: STAR Protocols
Article Title: A protocol for high-throughput screening for immunomodulatory compounds using human primary cells
doi: 10.1016/j.xpro.2023.102405
Figure Lengend Snippet: Representative schematic of the AlphaLISA assay system A total of 8 μL of acceptor bead solution, containing biotinylated antibodies as well as acceptor beads, were added to each well containing 2 μL of supernatant. After a 1 h incubation, a 10 μL solution of Streptavidin donor beads were added to this solution and incubated for 30 min. Both beads are manufactured to be specific to a binding site for the cytokine of interest. When read on the EnVision Plate Reader, bound donor and acceptor beads, due to their proximity, will emit a 615 nm luminescence when excited by a 680 nm wavelength. The intensity of this luminescence reflects the concentration of bound beads or the concentration of the cytokine.
Article Snippet: IFN-γ AlphaLISA Detection Kit, 5,000 Assay Points , PerkinElmer , Product Number: AL217F.
Techniques: Incubation, Binding Assay, Concentration Assay