Find and fuse: Unsolved mysteries in sperm-egg recognition.

Find and fuse: Unsolved mysteries in sperm-egg recognition.
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DOI:
10.1371/journal.pbio.3000953
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发表时间:
2020-11
期刊:
影响因子:
9.8
通讯作者:
Wright GJ
Wright GJ
中科院分区:
生物学1区
文献类型:
--
作者:
Bianchi E;Wright GJ

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有性生殖是一种非常成功的方式,可以创造出带有细微遗传变异的后代,绝大多数真核生物都使用这种方式。在哺乳动物中,它涉及高度专业化细胞的形成:雄性的精子和雌性的卵子,每一个都携带着个体的遗传基因。精子和卵子的相互作用以其细胞膜的融合而达到高潮,引发导致形成新的遗传上不同的生物体的分子事件。虽然我们对哺乳动物受精有很好的细胞描述,但许多涉及的分子仍然未知,特别是负责精卵识别,结合和融合的细胞表面蛋白的身份和作用。在这里,我们将强调和讨论我们知识中的这些空白,以及一些最近发现的精子细胞表面和分泌蛋白的作用如何有助于我们理解这一基本过程。受精是一个具有挑战性的过程,来自两个个体的细胞融合产生一个新的,遗传上不同的同一物种的生物体。这篇未解之谜文章探讨了精子-卵子相互作用和融合的分子机制,这是一个正在进行越来越多研究的迷人话题。
Sexual reproduction is such a successful way of creating progeny with subtle genetic variations that the vast majority of eukaryotic species use it. In mammals, it involves the formation of highly specialised cells: the sperm in males and the egg in females, each carrying the genetic inheritance of an individual. The interaction of sperm and egg culminates with the fusion of their cell membranes, triggering the molecular events that result in the formation of a new genetically distinct organism. Although we have a good cellular description of fertilisation in mammals, many of the molecules involved remain unknown, and especially the identity and role of cell surface proteins that are responsible for sperm–egg recognition, binding, and fusion. Here, we will highlight and discuss these gaps in our knowledge and how the role of some recently discovered sperm cell surface and secreted proteins contribute to our understanding of this fundamental process. Fertilisation is the challenging process whereby cells from two individuals fuse to generate a new, genetically distinct organism of the same species. This Unsolved Mystery article explores the molecular mechanisms underlying sperm–egg interaction and fusion, a fascinating topic that is under increasing investigation.
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