V2EX apoptosis

Apoptosis

定义 Definition

细胞凋亡;程序性细胞死亡。指生物体内细胞按照预定的基因程序,主动、有序地自我消亡的过程。这是一种正常的生理机制,有助于维持组织的健康与平衡。

发音 Pronunciation

/p.to.ss/

注意:第二个 "p" 后的 "t" 通常不发音,也有人读作 /p.pto.ss/,两种发音均被接受。

例句 Examples

Apoptosis is essential for removing damaged cells from the body.
细胞凋亡对于清除体内受损细胞至关重要。

Researchers discovered that the failure of apoptosis in certain cells can lead to the development of cancer, as these cells continue to divide uncontrollably.
研究人员发现,某些细胞凋亡机制的失败可能导致癌症的发生,因为这些细胞会不受控制地持续分裂。

词源 Etymology

该词源自古希腊语 apoptōsis(ππτωσι),意为"脱落"。由前缀 **apo-**(离开、脱离)和 ptōsis(落下)组成,原本用来形容树叶从树上飘落或花瓣凋零的自然过程。1972年,英国病理学家 John Kerr、Andrew Wyllie 和 Alastair Currie 在一篇开创性论文中首次将这个词引入生物学领域,用以描述细胞有序的自我死亡过程,将其与细胞因损伤而意外死亡的"坏死"(necrosis)区分开来。这个古希腊词汇的选用巧妙地传达了细胞凋亡作为一种自然、优雅的生命退场过程的本质。

h2>相关词汇 Related Words

文学与学术引用 Literary & Academic References

  • 《The Emperor of All Maladies: A Biography of Cancer》(《众病之王:癌症传》) Siddhartha Mukherjee 著。书中详细讨论了细胞凋亡机制的失败与癌症发展之间的关系。
  • 《The Cell: A Visual Tour of the Building Block of Life》 Jack Challoner 著。该书在讲解细胞生命周期时对 apoptosis 进行了深入浅出的介绍。
  • 《Molecular Biology of the Cell》 Bruce Alberts 等著。这部经典教科书中用大量篇幅阐述了细胞凋亡的分子机制与信号通路。
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