Transcriptomics

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NASC-seq monitors RNA synthesis in single cells


ABSTRACT: Sequencing of newly synthesized RNA can monitor transcriptional dynamics with great sensitivity and high temporal resolution, but is currently restricted to populations of cells. Here, we develop new transcriptome alkylation-dependent single-cell RNA sequencing (NASC-seq), to monitor newly synthesized and pre-existing RNA in single cells. We validate the method on pre-alkylated RNA, and by demonstrating that more newly synthesized RNA was detected for genes with known high mRNA turnover. NASC-seq reveals rapidly up- and down-regulated genes during T-cell activation, and RNA arising from induced genes is essentially only newly synthesized. The newly synthesized and pre-existing transcriptomes after T-cell activation are distinct, confirming that we simultaneously measure gene expression at two time points in single cells. Altogether, NASC-seq is an accessible and powerful tool to investigate transcriptional dynamics that enables the precise monitoring of RNA synthesis at flexible time periods during homeostasis, perturbation responses and cellular differentiation.

ORGANISM(S): Homo sapiens

PROVIDER: GSE128273 | GEO | 2019/07/18

REPOSITORIES: GEO

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