这个词是什么意思？
Drugs that block negative regulator IMMUNE CHECKPOINT proteins (e.g., PD-1 RECEPTOR and CTLA-4 ANTIGEN) thereby increasing suppressed immune activation in immunotherapies.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D000082082 · MeSH 2026。
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