Asymmetric inheritance of epigenetic states in asymmetrically dividing stem cells.

Asymmetric inheritance of epigenetic states in asymmetrically dividing stem cells.
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不对称分裂的干细胞中表观遗传状态的不对称遗传。

DOI:
10.1016/j.ceb.2020.08.003
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发表时间:
2020-12
影响因子:
7.5
通讯作者:
Chen X
Chen X
中科院分区:
生物学2区
文献类型:
--
作者:
Zion EH;Chandrasekhara C;Chen X

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不对称细胞分裂产生两个基因相同但各自具有明显不同的细胞命运的细胞。在此过程中,表观遗传机制在允许两个子细胞具有独特的基因表达谱从而导致其特定细胞身份方面发挥重要作用。虽然在细胞周期中复制和分离遗传信息的过程已经得到了很好的研究,但表观遗传信息如何复制和分配的问题仍然存在。在这篇综述中,我们讨论了最近的进展,了解表观遗传状态是如何建立和遗传,重点是不对称的遗传模式的组蛋白,DNA甲基化,非组蛋白蛋白,RNA和细胞器。我们还讨论了这些过程的错误调节如何可能导致癌症和组织变性等疾病。
Asymmetric cell division produces two cells that are genetically identical but each have distinctly different cell fates. During this process, epigenetic mechanisms play an important role in allowing the two daughter cells to have unique gene expression profiles that lead to their specific cell identities. While the process of duplicating and segregating the genetic information during the cell cycle has been well studied, the question of how epigenetic information is duplicated and partitioned still remains. In this review, we discuss recent advances in understanding how epigenetic states are established and inherited, with emphasis on the asymmetric inheritance patterns of histones, DNA methylation, non-histone proteins, RNAs, and organelles. We also discuss how mis-regulation of these processes may lead to diseases such as cancer and tissue degeneration.
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