别名 JTK1、Non-receptor tyrosine-protein kinase TYK2、TYK2 + [2] |
简介 Tyrosine kinase of the non-receptor type involved in numerous cytokines and interferons signaling, which regulates cell growth, development, cell migration, innate and adaptive immunity (PubMed:8232552, PubMed:7813427, PubMed:7657660, PubMed:10995743, PubMed:10542297). Plays both structural and catalytic roles in numerous interleukins and interferons (IFN-alpha/beta) signaling (PubMed:10542297). Associates with heterodimeric cytokine receptor complexes and activates STAT family members including STAT1, STAT3, STAT4 or STAT6 (PubMed:10542297, PubMed:7638186). The heterodimeric cytokine receptor complexes are composed of (1) a TYK2-associated receptor chain (IFNAR1, IL12RB1, IL10RB or IL13RA1), and (2) a second receptor chain associated either with JAK1 or JAK2 (PubMed:7813427, PubMed:10542297, PubMed:7526154, PubMed:25762719). In response to cytokine-binding to receptors, phosphorylates and activates receptors (IFNAR1, IL12RB1, IL10RB or IL13RA1), creating docking sites for STAT members (PubMed:7526154, PubMed:7657660). In turn, recruited STATs are phosphorylated by TYK2 (or JAK1/JAK2 on the second receptor chain), form homo- and heterodimers, translocate to the nucleus, and regulate cytokine/growth factor responsive genes (PubMed:7657660, PubMed:10542297, PubMed:25762719). Negatively regulates STAT3 activity by promototing phosphorylation at a specific tyrosine that differs from the site used for signaling (PubMed:29162862). |
靶点 |
作用机制 TYK2抑制剂 |
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2022-09-09 |
作用机制 JAK1抑制剂 [+3] |
在研适应症 |
最高研发阶段批准上市 |
首次获批国家/地区 日本 |
首次获批日期2019-03-26 |
作用机制 ALK2抑制剂 [+4] |
在研机构 |
原研机构 |
在研适应症 |
最高研发阶段申请上市 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
开始日期2025-04-29 |
开始日期2025-03-06 |
开始日期2025-03-03 |