Massively parallel and time-resolved RNA sequencing in single cells with scNT-seq.

Massively parallel and time-resolved RNA sequencing in single cells with scNT-seq.
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DOI:
10.1038/s41592-020-0935-4
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发表时间:
2020-10
期刊:
影响因子:
48
通讯作者:
Wu H
Wu H
中科院分区:
生物学1区
文献类型:
--
作者:
Qiu Q;Hu P;Qiu X;Govek KW;Cámara PG;Wu H

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Single-cell RNA sequencing offers snapshots of whole transcriptomes but obscures the temporal RNA dynamics. Here we present single-cell metabolically labeled new RNA tagging sequencing (scNT-Seq), a method for massively parallel analysis of newly-transcribed and pre-existing mRNAs from the same cell. This droplet microfluidics-based method enables high-throughput chemical conversion on barcoded beads, efficiently marking newly-transcribed mRNAs with T-to-C substitutions. Using scNT-Seq, we jointly profiled new and old transcriptomes in ~55,000 single cells. These data revealed time-resolved transcription factor activities and cell state trajectories at single-cell level in response to neuronal activation. We further determined rates of RNA biogenesis and decay to uncover RNA regulatory strategies during stepwise conversion between pluripotent and rare totipotent two-cell-embryo-like (2C-like) stem cell states. Finally, integrating scNT-Seq with genetic perturbation identifies DNA methylcytosine dioxygenases as an epigenetic barrier into 2C-like cell state. Time-resolved single-cell transcriptomic analysis thus opens new lines of inquiry regarding cell-type-specific RNA regulatory mechanisms.
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