V2EX th2

TH2

定义 Definition

Th2 指“2型辅助性T细胞”(T helper type 2),是一类参与免疫调节的T细胞亚群,主要通过分泌 IL4、IL5、IL13 等细胞因子促进体液免疫反应,与过敏(如哮喘、湿疹)以及对寄生虫(蠕虫)的免疫应答密切相关。(该术语也常与 Th1 等其他T细胞亚群对比讨论。)

例句 Examples

Th2 cells are involved in allergic reactions.
Th2细胞参与过敏反应。

An exaggerated Th2 response can increase IgE production and contribute to asthma by driving IL4 and IL13 signaling.
过强的Th2反应会促进IgE生成,并通过推动IL4与IL13信号通路而加重哮喘。

发音 Pronunciation

/ti et tu/

词源 Etymology

Th2 是免疫学中的缩写:Th 来自 T helper(辅助性T细胞),数字 2 表示“第2型/2类”功能谱系,用来区分不同的辅助性T细胞反应模式(如 Th1、Th2 等)。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Janeway’s Immunobiology(《简明免疫学/杰纳韦免疫生物学》)中讨论 Th1/Th2 分化与细胞因子网络。
  • Cellular and Molecular Immunology(Abbas 等《细胞与分子免疫学》)中系统介绍 Th2 反应与过敏、IgE 的关系。
  • Mosmann & Coffman (1989) 经典论文提出 Th1/Th2 功能分型框架:Annual Review of Immunology 相关综述与原始研究中频繁出现 “Th2”。
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