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Systematic comparison of CRISPR-based transcriptional activators uncovers gene-regulatory features of enhancer-promoter interactions

Nucleic Acids Research, ISSN: 1362-4962, Vol: 50, Issue: 14, Page: 7842-7855
2022
  • 14
    Citations
  • 0
    Usage
  • 54
    Captures
  • 8
    Mentions
  • 10
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    14
  • Captures
    54
  • Mentions
    8
    • News Mentions
      7
      • News
        7
    • Blog Mentions
      1
      • Blog
        1
  • Social Media
    10
    • Shares, Likes & Comments
      10
      • Facebook
        10

Most Recent News

Development of compact transcriptional effectors using high-throughput measurements in diverse contexts

Nature Biotechnology, Published online: 01 November 2024; doi:10.1038/s41587-024-02442-6 Improved effectors for CRISPRi/CRISPRa are developed following high-throughput screening of transcriptional domains.

Article Description

Nuclease-inactivated CRISPR/Cas-based (dCas-based) systems have emerged as powerful technologies to synthetically reshape the human epigenome and gene expression. Despite the increasing adoption of these platforms, their relative potencies and mechanistic differences are incompletely characterized, particularly at human enhancer-promoter pairs. Here, we systematically compared the most widely adopted dCas9-based transcriptional activators, as well as an activator consisting of dCas9 fused to the catalytic core of the human CBP protein, at human enhancer-promoter pairs. We find that these platforms display variable relative expression levels in different human cell types and that their transactivation efficacies vary based upon the effector domain, effector recruitment architecture, targeted locus and cell type. We also show that each dCas9-based activator can induce the production of enhancer RNAs (eRNAs) and that this eRNA induction is positively correlated with downstream mRNA expression from a cognate promoter. Additionally, we use dCas9-based activators to demonstrate that an intrinsic transcriptional and epigenetic reciprocity can exist between human enhancers and promoters and that enhancer-mediated tracking and engagement of a downstream promoter can be synthetically driven by targeting dCas9-based transcriptional activators to an enhancer. Collectively, our study provides new insights into the enhancer-mediated control of human gene expression and the use of dCas9-based activators.

Bibliographic Details

Wang, Kaiyuan; Escobar, Mario; Li, Jing; Mahata, Barun; Goell, Jacob; Shah, Spencer; Cluck, Madeleine; Hilton, Isaac B

Oxford University Press (OUP)

Biochemistry, Genetics and Molecular Biology

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