别名 程序性细胞死亡1受体、CD279、hPD-1 + [9] |
简介 Inhibitory receptor on antigen activated T-cells that plays a critical role in induction and maintenance of immune tolerance to self (PubMed:21276005). Delivers inhibitory signals upon binding to ligands CD274/PDCD1L1 and CD273/PDCD1LG2 (PubMed:21276005). Following T-cell receptor (TCR) engagement, PDCD1 associates with CD3-TCR in the immunological synapse and directly inhibits T-cell activation (By similarity). Suppresses T-cell activation through the recruitment of PTPN11/SHP-2: following ligand-binding, PDCD1 is phosphorylated within the ITSM motif, leading to the recruitment of the protein tyrosine phosphatase PTPN11/SHP-2 that mediates dephosphorylation of key TCR proximal signaling molecules, such as ZAP70, PRKCQ/PKCtheta and CD247/CD3zeta (By similarity).
The PDCD1-mediated inhibitory pathway is exploited by tumors to attenuate anti-tumor immunity and escape destruction by the immune system, thereby facilitating tumor survival (PubMed:28951311). The interaction with CD274/PDCD1L1 inhibits cytotoxic T lymphocytes (CTLs) effector function (PubMed:28951311). The blockage of the PDCD1-mediated pathway results in the reversal of the exhausted T-cell phenotype and the normalization of the anti-tumor response, providing a rationale for cancer immunotherapy (PubMed:22658127, PubMed:25034862, PubMed:25399552). |
靶点 |
作用机制 PD-1抑制剂 |
在研机构 杭州尚健生物技术有限公司初创企业 [+4] |
在研适应症 |
最高研发阶段批准上市 |
首次获批国家/地区 中国 |
首次获批日期2024-06-25 |
作用机制 PD-1抑制剂 [+1] |
在研机构 |
原研机构 |
在研适应症 |
非在研适应症- |
最高研发阶段批准上市 |
首次获批国家/地区 中国 |
首次获批日期2024-05-21 |
开始日期2025-12-01 |
申办/合作机构 |
开始日期2025-08-01 |
申办/合作机构 |
开始日期2025-07-11 |
申办/合作机构 SWOG [+2] |