ICOS/CD278 (C-Term) Rabbit Monoclonal Antibody

ICOS/CD278 (C-Term) Rabbit Monoclonal Antibody

CAT N°: 32338
Price:

615.00 522.75

Inducible T cell co-stimulator (ICOS), also known as CD278, is a glycoprotein and member of the CD28/B7 family of co-stimulatory receptors that promotes T cell activation.{57036} It exists as a membrane-bound disulfide-linked homodimer and contains a leader peptide, an extracellular domain that interacts with ICOS ligand (ICOSL), and a cytoplasmic tail that mediates association with PI3K and is critical for T cell activation.{57036,57037} ICOS is expressed on activated CD4+ and CD8+ T cells following T cell receptor crosslinking and/or co-stimulation by CD28.{57036} ICOS co-stimulation of T cells induces production of IL-4, IL-5, IL-6, IFN-? (Item Nos. 32008 | 32078), TNF-? (Item Nos. 32020 | 32069), and GM-CSF (Item Nos. 32044 | 32079), but not IL-2, and superinduces production of IL-10, as well as prevents T cell apoptosis.{57037} Human melanoma cells express ICOSL and promote the expansion of ICOS+ IL-10-secreting regulatory T cells, which is positively correlated with unfavorable clinical outcomes.{57039} Administration of an anti-ICOS monoclonal antibody ameliorates mucosal inflammation and damage in a mouse model of T helper cell-induced chronic colitis.{57038} Cayman’s ICOS/CD278 (C-Term) Rabbit Monoclonal Antibody can be used for immunohistochemistry (IHC) applications.

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