Evidence map›Paper›PMID 26245833›Full record

ArticleGenetics2015

In Vivo Transcriptional Activation Using CRISPR/Cas9 in Drosophila.

Shuailiang Lin, Ben Ewen-Campen, Xiaochun Ni, Benjamin E Housden, Norbert Perrimon

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
8.3field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

76 citing papers in PubMed, 149 citations in OpenAlex.

  1. Embedded CRISPRi Enhances Gene-Silencing Efficiency in Drosophila.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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  3. Epigenetic editing of marine medaka (Zoological research · 2026
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  5. The use ofFrontiers in cell and developmental biology · 2026
    Review
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  7. Review
  8. Article
  9. Expression Pattern of the AB1-Gal4 Driver inInternational journal of molecular sciences · 2025
    Article
  10. Article
  11. A novelFly · 2024
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article

16 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Shuailiang LinTsinghua-Peking-National Institute of Biological Sciences Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China Department of Genetics.
Ben Ewen-CampenDepartment of Genetics bewencampen@genetics.med.harvard.edu perrimon@receptor.med.harvard.edu.
Xiaochun NiDepartment of Genetics.
Benjamin E HousdenDepartment of Genetics.
Norbert PerrimonDepartment of Genetics Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115 bewencampen@genetics.med.harvard.edu perrimon@receptor.med.harvard.edu.
Center for Life Sciences · CNHoward Hughes Medical Institute · US

Funding

VectorP30CA006516 · NCI · DANA-FARBER CANCER INSTITUTE · PI A. Heather Eliassen · 1985 to 2026
$330.6M
Drosophila Transgenic RNAi Resource ProjectR01GM084947 · NIGMS · HARVARD MEDICAL SCHOOL · PI PERRIMON, NORBERT · 2008 to 2019
$9.8M
Functional analysis of systemic factors regulating germline stem cellsF32GM113395 · NIGMS · HARVARD MEDICAL SCHOOL · PI EWEN-CAMPEN, BENJAMIN SCOTT · 2015 to 2017
$162k
Howard Hughes Medical InstituteNCI NIH HHS 2P30CA006516-48NCI NIH HHS P30 CA006516NIGMS NIH HHS F32 GM113395NIGMS NIH HHS F32GM113395NIGMS NIH HHS R01 GM084947NIGMS NIH HHS R01GM084947
6 · The paper itself

Abstract

A number of approaches for Cas9-mediated transcriptional activation have recently been developed, allowing target genes to be overexpressed from their endogenous genomic loci. However, these approaches have thus far been limited to cell culture, and this technique has not been demonstrated in vivo in any animal. The technique involving the fewest separate components, and therefore the most amenable to in vivo applications, is the dCas9-VPR system, where a nuclease-dead Cas9 is fused to a highly active chimeric activator domain. In this study, we characterize the dCas9-VPR system in Drosophila cells and in vivo. We show that this system can be used in cell culture to upregulate a range of target genes, singly and in multiplex, and that a single guide RNA upstream of the transcription start site can activate high levels of target transcription. We observe marked heterogeneity in guide RNA efficacy for any given gene, and we confirm that transcription is inhibited by guide RNAs binding downstream of the transcription start site. To demonstrate one application of this technique in cells, we used dCas9-VPR to identify target genes for Twist and Snail, two highly conserved transcription factors that cooperate during Drosophila mesoderm development. In addition, we simultaneously activated both Twist and Snail to identify synergistic responses to this physiologically relevant combination. Finally, we show that dCas9-VPR can activate target genes and cause dominant phenotypes in vivo, providing the first demonstration of dCas9 activation in a multicellular animal. Transcriptional activation using dCas9-VPR thus offers a simple and broadly applicable technique for a variety of overexpression studies.

Indexed as

AnimalsCRISPR-Cas SystemsDrosophilaDrosophila ProteinsGene Expression Regulation, DevelopmentalHumansMesodermRNA, Guide, CRISPR-Cas SystemsSnail Family Transcription FactorsTranscriptional ActivationTranscription FactorsTwist-Related Protein 1Drosophila ProteinsRNA, Guide, CRISPR-Cas SystemsSnail Family Transcription Factorssna protein, DrosophilaTranscription FactorsTwi protein, DrosophilaTwist-Related Protein 1CRISPR-Cas9gene activationoverexpression, gain-of-function

Identifiers

PMID26245833
PMCPMC4596659
OpenAlexW2197631897

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.