The mechanisms that drive responses to PD-1-blocking immunotherapy in some but not all patients have been puzzling. A new study suggests that the balance of PD-1 expression levels between CD8+ T cells and Treg cells might provide an answer.

中文翻译：

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PD-1 + T reg 细胞：癌症免疫疗法的敌人？

在一些但并非所有患者中驱动对 PD-1 阻断免疫疗法产生反应的机制一直令人费解。一项新的研究表明，CD8+ T 细胞和 Treg 细胞之间 PD-1 表达水平的平衡可能会提供答案。