CD3 is initially expressed in the cytoplasm of pro-thymocytes, the stem cells from which T-cells arise in the thymus. The pro-thymocytes differentiate into common thymocytes, and then into medullary …

Nov 14, 2025 · The CD3 complex acts as the signal transducer, translating external recognition by the TCR into internal cellular action. The complex is composed of multiple protein chains, typically …

Aug 4, 2025 · CD3 (Cluster of Differentiation 3) is a protein complex found on the surface of T cells. It acts as a universal marker for T cells, used to identify and count T cells.

In this review, we will focus on those strategies that directly target the CD3/TCR complex in situ—namely, CD3 specific antibodies, their variants, and CD3 aptamers (Table 1).

CD3 is part of the T-cell receptor (TCR) complex, which is essential for T-cell activation in response to antigens. When T-cells recognize a foreign pathogen, CD3 initiates a cascade of signaling events.

Mar 18, 2022 · CD3 is a cell surface complex composed of 4 distinct subunits; these subunits are chains of integral membrane glycoproteins that associate with T cell antigen receptor (TCR) and are …

Anti-CD3 antibodies act as potent immunosuppressive agents by modulating the CD3/T-cell receptor (TCR) complex. They have been used in patients to prevent short term allograft rejection and were …