V2EX hemagglutinin

Hemagglutinin

释义 Definition

血凝素;血凝集素:一种常见于流感病毒表面的糖蛋白,主要作用是与宿主细胞表面的唾液酸受体结合,帮助病毒进入细胞;也因能使红细胞发生凝集而得名。它是免疫系统(抗体)和疫苗设计的重要靶点。(不同病毒相关蛋白命名略有差异,但日常语境中最常指流感病毒的 hemagglutinin。)

发音 Pronunciation (IPA)

/himlutnn/

例句 Examples

Hemagglutinin helps the influenza virus enter cells.
血凝素帮助流感病毒进入细胞。

Small mutations in hemagglutinin can change which hosts the virus can infect and may reduce vaccine protection.
血凝素上的小突变可能改变病毒可感染的宿主范围,并可能降低疫苗的保护效果。

词源 Etymology

由 **hema-**(源自希腊语 haima,意为“血”)+ agglutinin(来自 agglutinate “使凝集、黏合”,最初用于免疫学中描述能引起细胞凝集的物质)构成。该词在免疫学与病毒学发展过程中用于描述“能导致红细胞凝集的蛋白质”,后来成为流感研究中的关键术语之一。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • The Coming Plague(《瘟疫来袭》/《下一场瘟疫》),Laurie Garrett(劳丽加勒特):在讨论流感与病毒演化的科普语境中常涉及 hemagglutinin 等表面蛋白。
  • Spillover(《血疫:动物病原体如何跨越物种界限》),David Quammen(大卫夸曼):谈到流感等人畜共患病时,常会提到血凝素与宿主受体结合的重要性。
  • Flu: The Story of the Great Influenza Pandemic of 1918 and the Search for the Virus That Caused It(《流感:1918大流感与寻找病原体》),Gina Kolata(吉娜科拉塔):在介绍流感病毒结构与研究进展时会出现该术语。
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