Human ICOS PharmaGenie ELISA Kit (SBRS0691)

Quantify human Inducible T-cell Co-Stimulator (ICOS, also known as CD278) protein levels with this solid-phase immunoassay from Assay Genie's PharmaGenie reagent line. ICOS is a CD28-family co-stimulatory receptor expressed on activated CD4+ and CD8+ T lymphocytes; it pairs with the B7-H2 (ICOSL) ligand on antigen-presenting cells and supports follicular helper T-cell differentiation, germinal center maintenance, and class-switched antibody responses. The kit accepts cell culture supernatants, plasma, and serum, supporting research in immune checkpoint biology, autoimmunity, transplant tolerance, and tumor immunotherapy. Each kit supplies pre-coated microplate wells, biotinylated detection antibody, streptavidin-HRP conjugate, standards, and diluents sufficient for 96 assays, packaged in vials. Reagents should be stored refrigerated to preserve activity, and unopened components remain stable through the kit's shelf life.