V2EX cd8

CD8

释义 Definition

CD8:一种免疫细胞表面分子(“分化群”标志物之一),常见于细胞毒性T细胞(CD8 T cells)表面,帮助其识别并清除被病毒感染或发生肿瘤变的细胞(通常与 MHC I类分子相关的抗原呈递配合)。在免疫学检测(如流式细胞术、免疫组化)中也常用作细胞标记。

发音 Pronunciation (IPA)

/sidi et/

例句 Examples

CD8 T cells help the body fight viral infections.
CD8 T细胞帮助身体对抗病毒感染。

In cancer immunotherapy, researchers often measure CD8 infiltration in tumors to estimate immune activity and prognosis.
在癌症免疫治疗中,研究者常测量肿瘤中的CD8细胞浸润程度,用来评估免疫活性与预后。

词源 Etymology

“CD”来自 Cluster of Differentiation(分化群),是免疫学中用于给细胞表面分子编号与分类的命名体系;“8”表示该分子在该体系中的编号。CD8最早作为区分T细胞亚群的重要标记之一被确立,并逐渐成为描述细胞毒性T细胞功能与状态的常用术语。

相关词 Related Words

文学/著作示例 Literary / Notable Works

  • Janeway’s Immunobiology(经典免疫学教材,讨论CD8 T细胞识别与效应机制)
  • Cellular and Molecular Immunology(Abbas 等,系统介绍CD8相关免疫应答)
  • The Immune System(Peter Parham,涵盖T细胞受体、MHC I与CD8协同作用)
  • Nature / Science 等期刊的肿瘤免疫与病毒免疫研究论文(常以“CD8 infiltration / CD8 T cells”为关键指标)
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