V2EX caspase-8

Caspase-8

Definition / 释义

caspase-8:一种半胱天冬酶(caspase)家族成员,属于启动子(initiator)caspase,常在细胞接收到“死亡信号”(如 Fas/TNF 相关通路)时被激活,从而启动细胞凋亡(apoptosis)的级联反应。(在免疫调控与某些疾病机制中很重要。)

Pronunciation / 发音

/kspes et/

Examples / 例句

Caspase-8 helps trigger apoptosis when a cell receives a death signal.
当细胞接收到死亡信号时,caspase-8 有助于触发细胞凋亡。

Loss of caspase-8 can disrupt immune balance and alter how cells respond to inflammation.
caspase-8 的缺失可能破坏免疫平衡,并改变细胞对炎症的反应方式。

Etymology / 词源

caspase 是由 cysteine(半胱氨酸) + aspase(指偏好切割含天冬氨酸 aspartate 位点的蛋白酶)组合而来,强调其“以半胱氨酸为催化位点、在天冬氨酸位点切割”的酶学特征;“**-8**”表示该家族成员的编号。

Related Words / 相关词

Literary Works / 文学与著作例证

  • Alberts et al., Molecular Biology of the Cell(《细胞的分子生物学》):在细胞凋亡与死亡受体通路章节中讨论 caspase-8 的作用。
  • Janeway et al., Janeway’s Immunobiology(《简明免疫生物学》):在免疫稳态、受体信号与细胞死亡相关内容中提及 caspase-8。
  • Ashkenazi & Dixit 等关于死亡受体信号的经典综述论文(多发表于 ScienceNature 等期刊):常以 caspase-8 作为外源性凋亡通路的关键分子进行阐述。
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