疾病领域 | 数量 |
---|---|
肿瘤 | 1 |
排名前五的药物类型 | 数量 |
---|---|
T细胞疗法 | 1 |
排名前五的靶点 | 数量 |
---|---|
TLR7(Toll样受体7) | 1 |
靶点 |
作用机制 TLR7激动剂 |
在研机构 |
原研机构 |
在研适应症 |
非在研适应症- |
最高研发阶段临床前 |
首次获批国家/地区- |
首次获批日期- |
Effective anti-tumor immunity is largely driven by cytotoxic CD8+ T cells that can specifically recognize tumor antigens. However, the factors which ultimately dictate successful tumor rejection remain poorly understood. Here we identify a subpopulation of CD8+ T cells which are tumor antigen-specific in patients with melanoma but resemble KIR+CD8+ T cells with a regulatory function (Tregs). These tumor antigen-specific KIR+CD8+ T cells are detectable in both the tumor and the blood, and higher levels of this population are associated with worse overall survival. Our findings therefore suggest that KIR+CD8+ Tregs are tumor antigen-specific but uniquely suppress anti-tumor immunity in patients with melanoma.