别名 白细胞介素-2、Aldesleukin、IL-2 + [6] |
简介 Cytokine produced by activated CD4-positive helper T-cells and to a lesser extend activated CD8-positive T-cells and natural killer (NK) cells that plays pivotal roles in the immune response and tolerance (PubMed:6438535). Binds to a receptor complex composed of either the high-affinity trimeric IL-2R (IL2RA/CD25, IL2RB/CD122 and IL2RG/CD132) or the low-affinity dimeric IL-2R (IL2RB and IL2RG) (PubMed:16293754, PubMed:16477002). Interaction with the receptor leads to oligomerization and conformation changes in the IL-2R subunits resulting in downstream signaling starting with phosphorylation of JAK1 and JAK3 (PubMed:7973659). In turn, JAK1 and JAK3 phosphorylate the receptor to form a docking site leading to the phosphorylation of several substrates including STAT5 (PubMed:8580378). This process leads to activation of several pathways including STAT, phosphoinositide-3-kinase/PI3K and mitogen-activated protein kinase/MAPK pathways (PubMed:25142963). Functions as a T-cell growth factor and can increase NK-cell cytolytic activity as well (PubMed:6608729). Promotes strong proliferation of activated B-cells and subsequently immunoglobulin production (PubMed:6438535). Plays a pivotal role in regulating the adaptive immune system by controlling the survival and proliferation of regulatory T-cells, which are required for the maintenance of immune tolerance. Moreover, participates in the differentiation and homeostasis of effector T-cell subsets, including Th1, Th2, Th17 as well as memory CD8-positive T-cells. |
作用机制 CK1α抑制剂 [+7] |
原研机构 |
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2005-12-27 |
靶点 |
作用机制 IL-2刺激剂 |
在研适应症 |
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 |
靶点 |
作用机制 IL-2替代物 |
在研机构 |
原研机构- |
在研适应症 |
非在研适应症- |
最高研发阶段临床2期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
开始日期2025-01-17 |
申办/合作机构 |
开始日期2025-01-01 |
申办/合作机构 |
开始日期2024-12-31 |
申办/合作机构 |