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An accessible and convenient assay to profile single-cell newly synthesized transcriptome reveals transcription factors and regulon dynamics during early-stage T-cell activation

ABSTRACT: An accessible and convenient assay to profile single-cell newly synthesized transcriptome reveals transcription factors and regulon dynamics during early-stage T-cell activation

PROVIDER: PRJNA1126143 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29650137.fastq.gz	Fastqsanger.gz
	SRR29650138.fastq.gz	Fastqsanger.gz
	SRR29650139.fastq.gz	Fastqsanger.gz
	SRR29650140.fastq.gz	Fastqsanger.gz
	SRR29650141.fastq.gz	Fastqsanger.gz

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An accessible and convenient assay to profile single-cell newly synthesized transcriptome reveals transcription factors and regulon dynamics during early-stage T-cell activation

Project description:Sequencing newly synthesized transcriptome in addition to the regular transcriptome in single cells enable the study of gene expression temporal dynamics during rapid chromatin and gene regulation processes. However, current single-cell newly synthesized transcriptome assays require in-house technology expertise to achieve a high cellular throughput, preventing their widespread application. Here, we develop NOTE-seq to simultaneously profile regular and newly synthesized transcriptome in single cells. NOTE-seq combines 4-thiouridine labeling of newly synthesized RNA, thiol-alkylation-based chemical conversion, and the streamlined 10X Genomics platform, offering a high cellular throughput accessible to and convenient for regular biology labs without single-cell technology expertise. Using NOTE-seq, we investigate the temporal dynamics of gene expression during early-stage T-cell activation in human Jurkat T cells and mouse naïve T cells, characterize transcription factors and regulons, and discover Fli-1 as a master transcription factor for gene regulation upon T-cell activation. Interestingly, Fli-1 level in T cells is sensitive to the treatment of camptothecin, a topoisomerase inhibitor used in cancer chemotherapy, indicating its potential complication on the immune system.

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