Perturb-Seq: Dissecting Molecular Circuits with Scalable Single-Cell RNA Profiling of Pooled Genetic Screens

Cell. 2016 Dec 15;167(7):1853-1866.e17. doi: 10.1016/j.cell.2016.11.038.

Abstract

Genetic screens help infer gene function in mammalian cells, but it has remained difficult to assay complex phenotypes-such as transcriptional profiles-at scale. Here, we develop Perturb-seq, combining single-cell RNA sequencing (RNA-seq) and clustered regularly interspaced short palindromic repeats (CRISPR)-based perturbations to perform many such assays in a pool. We demonstrate Perturb-seq by analyzing 200,000 cells in immune cells and cell lines, focusing on transcription factors regulating the response of dendritic cells to lipopolysaccharide (LPS). Perturb-seq accurately identifies individual gene targets, gene signatures, and cell states affected by individual perturbations and their genetic interactions. We posit new functions for regulators of differentiation, the anti-viral response, and mitochondrial function during immune activation. By decomposing many high content measurements into the effects of perturbations, their interactions, and diverse cell metadata, Perturb-seq dramatically increases the scope of pooled genomic assays.

Keywords: CRISPR; epistasis; genetic interactions; pooled screen; single-cell RNA-seq.

MeSH terms

  • Animals
  • Cell Cycle
  • Clustered Regularly Interspaced Short Palindromic Repeats
  • Feedback
  • Gene Expression Profiling
  • Gene Knockdown Techniques
  • Humans
  • K562 Cells
  • Mice
  • Mice, Transgenic
  • Sequence Analysis, RNA / methods*
  • Single-Cell Analysis / methods*
  • Transcription Factors / metabolism

Substances

  • Transcription Factors