别名 CD223、FDC、LAG-3 + [7] |
简介 Lymphocyte activation gene 3 protein: Inhibitory receptor on antigen activated T-cells (PubMed:7805750, PubMed:8647185, PubMed:20421648). Delivers inhibitory signals upon binding to ligands, such as FGL1 (By similarity). FGL1 constitutes a major ligand of LAG3 and is responsible for LAG3 T-cell inhibitory function (By similarity). Following TCR engagement, LAG3 associates with CD3-TCR in the immunological synapse and directly inhibits T-cell activation (By similarity). May inhibit antigen-specific T-cell activation in synergy with PDCD1/PD-1, possibly by acting as a coreceptor for PDCD1/PD-1 (By similarity). Negatively regulates the proliferation, activation, effector function and homeostasis of both CD8(+) and CD4(+) T-cells (PubMed:7805750, PubMed:8647185, PubMed:20421648). Also mediates immune tolerance: constitutively expressed on a subset of regulatory T-cells (Tregs) and contributes to their suppressive function (By similarity). Also acts as a negative regulator of plasmacytoid dendritic cell (pDCs) activation (By similarity). Binds MHC class II (MHC-II); the precise role of MHC-II-binding is however unclear (PubMed:8647185).
May function as a ligand for MHC class II (MHC-II) on antigen-presenting cells (APC), promoting APC activation/maturation and driving Th1 immune response. |
作用机制 LAG3抑制剂 [+1] |
非在研适应症 |
最高研发阶段批准上市 |
首次获批国家/地区 美国 |
首次获批日期2022-03-18 |
作用机制 HLA class II抗原调节剂 [+3] |
原研机构 |
最高研发阶段临床3期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
作用机制 LAG3抑制剂 [+1] |
在研机构 |
非在研适应症 |
最高研发阶段临床3期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
开始日期2025-05-01 |
开始日期2025-05-01 |
开始日期2025-03-26 |