别名 CD3 delta subunit of T-cell receptor complex、CD3-DELTA、CD3D + [4] |
简介 Part of the TCR-CD3 complex present on T-lymphocyte cell surface that plays an essential role in adaptive immune response. When antigen presenting cells (APCs) activate T-cell receptor (TCR), TCR-mediated signals are transmitted across the cell membrane by the CD3 chains CD3D, CD3E, CD3G and CD3Z. All CD3 chains contain immunoreceptor tyrosine-based activation motifs (ITAMs) in their cytoplasmic domain. Upon TCR engagement, these motifs become phosphorylated by Src family protein tyrosine kinases LCK and FYN, resulting in the activation of downstream signaling pathways (PubMed:2470098). In addition of this role of signal transduction in T-cell activation, CD3D plays an essential role in thymocyte differentiation. Indeed, participates in correct intracellular TCR-CD3 complex assembly and surface expression. In absence of a functional TCR-CD3 complex, thymocytes are unable to differentiate properly. Interacts with CD4 and CD8 and thus serves to establish a functional link between the TCR and coreceptors CD4 and CD8, which is needed for activation and positive selection of CD4 or CD8 T-cells(PubMed:12215456). |
靶点 |
作用机制- |
在研机构 |
原研机构 |
在研适应症 |
非在研适应症- |
最高研发阶段药物发现 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
作用机制 CD19调节剂 [+2] |
在研机构- |
原研机构 |
在研适应症- |
非在研适应症 |
最高研发阶段终止 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
开始日期2018-10-29 |
申办/合作机构 |