Evidence map›Paper›PMID 35244715›Full record

ArticleNucleic acids research2022

CRISPR/Cas13 effectors have differing extents of off-target effects that limit their utility in eukaryotic cells.

Yuxi Ai, Dongming Liang, Jeremy E Wilusz

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
12.8field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 144 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Treatment of Huntington's disease with a pan-HTT-targeting CRISPR nuclease.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
    Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Embedded CRISPRi Enhances Gene-Silencing Efficiency in Drosophila.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Spligation enables programmable chimeric RNA generation in living cells.bioRxiv : the preprint server for biology · 2026
    Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Yuxi AiBiochemistry and Molecular Biophysics Graduate Group, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.ORCID 0000-0001-6393-778X
Dongming LiangDepartment of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.
Jeremy E WiluszBiochemistry and Molecular Biophysics Graduate Group, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.ORCID 0000-0001-6929-8755
University of Pennsylvania · USBaylor College of Medicine · US

Funding

Regulatory roles for the Integrator complex and circular RNAsR35GM119735 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI WILUSZ, JEREMY E · 2016 to 2025
$4.1M
NIGMS NIH HHS R35 GM119735
6 · The paper itself

Abstract

CRISPR/Cas13 effectors have garnered increasing attention as easily customizable tools for detecting and depleting RNAs of interest. Near perfect complementarity between a target RNA and the Cas13-associated guide RNA is required for activation of Cas13 ribonuclease activity. Nonetheless, the specificity of Cas13 effectors in eukaryotic cells has been debated as the Cas13 nuclease domains can be exposed on the enzyme surface, providing the potential for promiscuous cleavage of nearby RNAs (so-called collateral damage). Here, using co-transfection assays in Drosophila and human cells, we found that the off-target effects of RxCas13d, a commonly used Cas13 effector, can be as strong as the level of on-target RNA knockdown. The extent of off-target effects is positively correlated with target RNA expression levels, and collateral damage can be observed even after reducing RxCas13d/guide RNA levels. The PspCas13b effector showed improved specificity and, unlike RxCas13d, can be used to deplete a Drosophila circular RNA without affecting the expression of the associated linear RNA. PspCas13b nonetheless still can have off-target effects and we notably found that the extent of off-target effects for Cas13 effectors differs depending on the cell type and target RNA examined. In total, these results highlight the need for caution when designing and interpreting Cas13-based knockdown experiments.

Indexed as

CRISPR-Cas SystemsRNA, Guide, CRISPR-Cas SystemsAnimalsDrosophilaEukaryotic CellsRNARNARNA, Guide, CRISPR-Cas Systems

Identifiers

PMID35244715
PMCPMC9226543
OpenAlexW4220803283

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.