V2EX toll-like receptor

Toll-like Receptor

Definition / 释义

Toll-like receptor(TLR,Toll样受体):一类位于细胞表面或细胞内膜结构上的先天免疫受体,能够识别病原体相关的分子模式(如细菌脂多糖、病毒RNA等),从而触发炎症信号通路并启动免疫反应。(该术语在免疫学中也常以缩写 TLR 出现。)

Pronunciation / 发音

/tol lak rsptr/

Examples / 例句

Toll-like receptors help the body detect invading microbes.
Toll样受体帮助身体识别入侵的微生物。

Activation of a Toll-like receptor can trigger cytokine release and shape the adaptive immune response.
Toll样受体的激活可引发细胞因子释放,并影响适应性免疫反应的方向。

Etymology / 词源

Toll 最初是果蝇(Drosophila)中的一个基因名。该基因在胚胎发育中很重要,后来研究发现它也参与抗感染防御;由于其在人类等动物中存在结构与功能相似的一类受体,于是被命名为 Toll-like(“类似Toll的”)receptor。这一命名体现了从模式生物到人类免疫学的知识迁移。

Related Words / 相关词

Literary Works / 文学作品

  • Janeway’s Immunobiology(经典免疫学教材,讨论TLR与先天免疫信号)
  • Cellular and Molecular Immunology(Abbas 等,涵盖TLR介导的炎症与细胞因子通路)
  • Kuby Immunology(系统介绍TLR在免疫识别与信号转导中的作用)
  • The Immune System(Parham,面向学习者讲解TLR与免疫系统整体框架)
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