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A Genome-wide CRISPR Screen in Primary Immune Cells to Dissect Regulatory Networks

Oren Parnas, Marko Jovanovic, Thomas M. Eisenhaure, Rebecca H. Herbst, Atray Dixit, Chun Jimmie Ye, Dariusz Przybylski, Randall J. Platt, Itay Tirosh, Neville E. Sanjana, Ophir Shalem, Rahul Satija, Raktima Raychowdhury, Philipp Mertins, Steven A. Carr, Feng Zhang, Nir Hacohen, Aviv Regev

Research output: Contribution to journalArticlepeer-review

Abstract

Finding the components of cellular circuits and determining their functions systematically remains a major challenge in mammalian cells. Here, we introduced genome-wide pooled CRISPR-Cas9 libraries into dendritic cells (DCs) to identify genes that control the induction of tumor necrosis factor (Tnf) by bacterial lipopolysaccharide (LPS), a key process in the host response to pathogens, mediated by the Tlr4 pathway. We found many of the known regulators of Tlr4 signaling, as well as dozens of previously unknown candidates that we validated. By measuring protein markers and mRNA profiles in DCs that are deficient in known or candidate genes, we classified the genes into three functional modules with distinct effects on the canonical responses to LPS and highlighted functions for the PAF complex and oligosaccharyltransferase (OST) complex. Our findings uncover new facets of innate immune circuits in primary cells and provide a genetic approach for dissection of mammalian cell circuits.

Original languageEnglish
Pages (from-to)675-686
Number of pages12
JournalCell
Volume162
Issue number3
DOIs
StatePublished - 1 Aug 2015
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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