Cited by 556CRISPR and Genetic EngineeringPluripotent Stem Cells ResearchVirus-based gene therapy research

The DOI matches its Crossref record; 67 of the 68 references it cites were found in a registry or an index; none of the 20 sources its claims cite is checked for support yet.

CRISPR Interference-Based Platform for Multimodal Genetic Screens in Human iPSC-Derived Neurons

Open access

Published version of a preprint

Abstract

CRISPR/Cas9-based functional genomics have transformed our ability to elucidate mammalian cell biology. However, most previous CRISPR-based screens were conducted in cancer cell lines rather than healthy, differentiated cells. Here, we describe a CRISPR interference (CRISPRi)-based platform for genetic screens in human neurons derived from induced pluripotent stem cells (iPSCs). We demonstrate robust and durable knockdown of endogenous genes in such neurons and present results from three complementary genetic screens. First, a survival-based screen revealed neuron-specific essential genes and genes that improved neuronal survival upon knockdown. Second, a screen with a single-cell transcriptomic readout uncovered several examples of genes whose knockdown had strikingly cell-type-specific consequences. Third, a longitudinal imaging screen detected distinct consequences of gene knockdown on neuronal morphology. Our results highlight the power of unbiased genetic screens in iPSC-derived differentiated cell types and provide a platform for systematic interrogation of normal and disease states of neurons. VIDEO ABSTRACT.

Overview

Integrity signals

Registry

Crossref · 10.1016/j.neuron.2019.07.014

Cites

67 of 67 references verified0 citation errors · 0 not checkable

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Claims the paper makes

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Show all 62 claims

  • It may state two separate claims as one. 20
  • Probably not a substantial claim. 20
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  • The paper relies on this without support.

    The AAVS1 locus, where the inducible Ngn2 transgene was integrated, lies within the PPP1R12C gene.

    “Interestingly, the AAVS1 locus, into which the inducible Ngn2 transgene was integrated, resides within the PPP1R12C gene.”
  • The paper relies on this without support.

    Primary human neurons are difficult to obtain from human donors and cannot be expanded because they are post-mitotic.

    “primary neurons are difficult to obtain from human donors, and non-expandable due to their post-mitotic nature.”
  • The paper relies on this without support.

    Most previous CRISPR-based screens were conducted in cancer cell lines or stem cells rather than healthy differentiated human cells.

    “Most previous CRISPR-based screens were implemented in cancer cell lines or stem cells rather than healthy differentiated human cells”
  • The paper relies on this without support.

    CRISPRi reduces gene function by partial knockdown rather than complete knockout, allowing study of essential genes.

    “Furthermore, CRISPRi perturbs gene function by partial knockdown, rather than knockout, thereby enabling the investigation of the biology of essential genes.”
  • The paper relies on this without support.

    sgRNA abundance in pooled screens reflects cell survival or proliferation.

    “Based on the depletion or enrichment of sgRNAs targeting specific genes at different time points compared to day 0, we identified hit genes for which knockdown was toxic or beneficial to either iPSCs or neurons at different time points (Fig. 2B, Fig. S2B).”
  • The paper relies on this without support.

    iPSCs can be made from readily available cells, genetically engineered, expanded, and differentiated into various cell types.

    “They can be made from readily available cells, such as skin fibroblasts or peripheral mononuclear blood cells; they can be genetically engineered and subsequently expanded to generate large numbers of isogenic cells; and they can then be differentiated into a variety of cell types”
  • The paper relies on this without support.

    The presence of astrocytes in co-culture is representative of the brain environment.

    “In the brain, many neuronal functions are supported by glial cells, particularly astrocytes.”
  • The paper relies on this without support.

    CRISPR interference reduces gene expression partially rather than completely eliminating it.

    “Third, it perturbs gene function via partial knockdown, as opposed to knockout”
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  • Doxycycline concentration differs by a factor of 1,000

    Minor

    The neuronal-plating procedures specify 2 μg/μL doxycycline in Cortical Neuron Culture Medium, whereas the formulation of that same medium specifies 2 μg/mL.

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Metadata

Authors
Tian, R., Gachechiladze, M. A., Ludwig, C. H., Laurie, M. T., Hong, J. Y., Nathaniel, D., Prabhu, A. V., Fernandopulle, M. S., Patel, R., Abshari, M., Ward, M. E., & Kampmann, M.
Affiliations
  • University of California, San Francisco (US)
  • National Institutes of Health (US)
Corresponding author
  • Ward, Michael E.
  • Kampmann, Martin
Venue
Neuron
Publisher
Elsevier BV
Published
2019-10
Volume
104
Issue
2
Pages
239-255.e12
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2967789674
Cited by
543
References
68
Citations by year
2026: 85 · 2025: 116 · 2024: 103 · 2023: 60 · 2022: 66 · 2021: 62 · 2020: 45 · 2019: 6
FWCI
15.72
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute of General Medical Sciences
  • Paul G. Allen Family Foundation
  • National Institute of Neurological Disorders and Stroke
  • National Institute on Aging
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
Keywords
CRISPR interference, iPSC-derived neurons, functional genetic screens, gene knockdown, neuronal survival, essential genes, single-cell transcriptomics, neuronal morphology
MeSH terms
RNA-Seq, Cell Survival, Humans, Neurons, Microscopy, Confocal, Gene Knockdown Techniques, Induced Pluripotent Stem Cells, Single-Cell Analysis, CRISPR-Cas Systems

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