V2EX mhc

MHC

Definition / 释义

MHCmajor histocompatibility complex 的缩写,中文常译为主要组织相容性复合体:一组位于细胞表面的蛋白分子,用于呈递抗原并帮助免疫系统区分“自身”与“非自身”,在器官移植排斥反应免疫识别中非常关键。(常见还有 MHC I 与 MHC II 两大类)

Pronunciation / 发音

/em et si/
(全称 major histocompatibility complex:/medr hstkmptblti kmpleks/)

Examples / 例句

MHC helps the immune system recognize infected cells.
MHC 帮助免疫系统识别被感染的细胞。

Because MHC molecules present peptide fragments to T cells, differences in MHC types can strongly influence transplant compatibility.
由于 MHC 分子会把肽片段呈递给 T 细胞,不同的 MHC 类型会强烈影响移植配型的相容性。

Etymology / 词源

MHC 来自免疫学术语 major histocompatibility complex

  • major 表示“主要的/关键的”
  • histo- 源自希腊语,指“组织”
  • compatibility 指“相容性”(尤其与移植排斥相关)
  • complex 指“复合体/一组相关基因与蛋白的集合”
    该名称最初与移植实验中发现的“组织相容性差异”密切相关,后来明确其核心功能是抗原呈递与免疫识别。

Related Words / 相关词

Notable Works / 作品例证

  • Janeway’s Immunobiology(《贾尼韦免疫生物学》)
  • Kuby Immunology(《库比免疫学》)
  • The Immune System(Peter Parham,《免疫系统》)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
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