CD28 (Antigen CD28) is characterized as a co-receptor for the TCR (T-Cell Receptor)/CD3 (CD3 Antigen) complex and is responsible for providing the co-stimulatory signal required for T-cell activation. CD28 also act as a receptor independent of the TCR and can initiate signaling events without concomitant TCR ligation. Priming of naive T-cells in lymphoid organs depends on the interaction between CD28, which is constitutively expressed in T-cells, and both CD80 (CD80 Antigen) and CD86 (CD86 Antigen) and induces subsequent IL-2 (I...
Linterman MA, Denton AE, Divekar DP, Zvetkova I, Kane L, Ferreira C, Veldhoen M, Clare S, Dougan G, Espéli M, Smith KG. Elife. 2014 Oct 27; 3. doi: 10.7554/eLife.03180.