别名 CD33、CD33 antigen (gp67)、CD33 molecule + [9] |
简介 Sialic-acid-binding immunoglobulin-like lectin (Siglec) that plays a role in mediating cell-cell interactions and in maintaining immune cells in a resting state (PubMed:10611343, PubMed:15597323, PubMed:11320212). Preferentially recognizes and binds alpha-2,3- and more avidly alpha-2,6-linked sialic acid-bearing glycans (PubMed:7718872). Upon engagement of ligands such as C1q or syalylated glycoproteins, two immunoreceptor tyrosine-based inhibitory motifs (ITIMs) located in CD33 cytoplasmic tail are phosphorylated by Src-like kinases such as LCK (PubMed:28325905, PubMed:10887109). These phosphorylations provide docking sites for the recruitment and activation of protein-tyrosine phosphatases PTPN6/SHP-1 and PTPN11/SHP-2 (PubMed:10556798, PubMed:10206955, PubMed:10887109). In turn, these phosphatases regulate downstream pathways through dephosphorylation of signaling molecules (PubMed:10206955, PubMed:10887109). One of the repressive effect of CD33 on monocyte activation requires phosphoinositide 3-kinase/PI3K (PubMed:15597323). |
作用机制 CD33抑制剂 [+1] |
原研机构 |
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2000-05-17 |
作用机制 CD123抑制剂 [+3] |
非在研适应症- |
最高研发阶段临床1/2期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
靶点 |
作用机制 CD33抑制剂 |
在研适应症 |
非在研适应症- |
最高研发阶段临床1/2期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
开始日期2024-10-01 |
申办/合作机构 |
开始日期2024-08-01 |
申办/合作机构 |
开始日期2024-07-10 |
申办/合作机构 |