ICOS (CD278) Mouse, anti-Human, R718, Clone: DX29, BD OptiBuild™

Description

• The DX29 monoclonal antibody specifically binds to human CD278, which is also known as Inducible Costimulator (ICOS) or Inducible T-cell Costimulator
• ICOS is a homodimeric type I transmembrane glycoprotein with an approximate molecular weight of 50-60 kDa
• It is a member of the CD28 family and is highly expressed on activated T cells
• CD278 is the receptor for ICOS-ligand (also known as, CD275, B7-H2, B7RP-1, or LICOS)
• Like CD28, ICOS can provide a costimulatory signal for T cell activation, proliferation and cytokine production
• It is not expressed on resting or activated B cells, monocytes, NK cells, granulocytes, dendritic cells or platelets
• Unlike the constitutively expressed CD28, ICOS is de novo expressed upon cellular activation
• Reports describe similarities between CD28 and ICOS in T cell activation, such as the costimulation of cytokine production
• However, it has been suggested that ICOS may play a greater role in IL-10 production
• In the presence of IL-10, purified recombinant human ICOS protein significantly increased in vitro B cell growth stimulated by pokeweed mitogen (PWM) and enhanced production of IgG.