Single cells and transposable element heterogeneity in stem cells and development.

Single cells and transposable element heterogeneity in stem cells and development.
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DOI:
10.1186/s13619-021-00085-5
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发表时间:
2021-07-06
期刊:
Cell regeneration (London, England)
影响因子:
--
通讯作者:
Hutchins AP
Hutchins AP
中科院分区:
其他
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作者:
Hutchins AP

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基于单细胞测序的技术的最新创新以前所未有的细节揭示了细胞群体的异质性。然而,目前单细胞研究中的几个细胞方面尚未得到充分利用。一方面是转座元件(TE)的表达和活性。 TE 是可以复制的自私 DNA 序列,并且在基因组殖民方面取得了巨大成功。然而,大多数 TE 是突变的、片段化的且无法转座,但它们主动结合多种转录因子,具有复杂的染色质修饰模式,并且在正常和患病状态下作为转录组的一部分在 mRNA 中表达。 TE 对发育和细胞功能的贡献仍不清楚,将 TE 常规纳入单细胞测序分析将有可能带来对干细胞、发育和人类疾病的深入了解。
Recent innovations in single cell sequencing-based technologies are shining a light on the heterogeneity of cellular populations in unprecedented detail. However, several cellular aspects are currently underutilized in single cell studies. One aspect is the expression and activity of transposable elements (TEs). TEs are selfish sequences of DNA that can replicate, and have been wildly successful in colonizing genomes. However, most TEs are mutated, fragmentary and incapable of transposition, yet they are actively bound by multiple transcription factors, host complex patterns of chromatin modifications, and are expressed in mRNAs as part of the transcriptome in both normal and diseased states. The contribution of TEs to development and cellular function remains unclear, and the routine inclusion of TEs in single cell sequencing analyses will potentially lead to insight into stem cells, development and human disease.
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