V2EX lipoteichoic acid

Lipoteichoic Acid

释义 Definition

磷壁酸脂(LTA)/脂磷壁酸:一种存在于革兰氏阳性菌细胞壁/细胞膜相关结构中的两亲性聚合物,通常由甘油磷酸或核糖醇磷酸重复单位组成,并通过脂质锚定在细菌膜上。它常被视为重要的表面抗原与免疫刺激分子,可被宿主(如 TLR2)识别并引发炎症反应。*(该词在不同语境下也可能泛指“带脂质锚定的磷壁酸类分子”。)*

例句 Examples

Lipoteichoic acid is found in the cell wall of many Gram-positive bacteria.
脂磷壁酸存在于许多革兰氏阳性菌的细胞壁结构中。

During infection, lipoteichoic acid can activate immune cells and contribute to inflammatory responses through pattern-recognition receptors.
在感染过程中,脂磷壁酸可通过模式识别受体激活免疫细胞,并促进炎症反应。

发音 Pronunciation (IPA)

/lapotakk sd/

词源 Etymology

lipo- 来自希腊语,意为“脂肪/脂质”;teichoic 源自希腊语 teichos(“墙”),指与细菌“细胞壁”相关;acid 表示其为“酸性化合物/酸”。合起来强调它是与细胞壁相关、并带有脂质部分的(磷)酸性聚合物

相关词 Related Words

文学与著作中的用例 Literary Works

  • Jawetz, Melnick & Adelberg’s Medical Microbiology(《Jawetz 医学微生物学》)在革兰氏阳性菌细胞壁成分与免疫反应章节中常出现。
  • Brock Biology of Microorganisms(《Brock 微生物学》)介绍细菌细胞包被结构与表面聚合物时会讨论 lipoteichoic acid。
  • Medical Microbiology(Murray, Rosenthal & Pfaller 等常用教材版本)涉及细菌致病机制、炎症介质与宿主识别时常提及。
  • Journal of BacteriologyInfection and Immunity 等期刊论文关于革兰氏阳性菌表面结构、TLR2 相关免疫激活与炎症机制的研究中高频出现。
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