Cited by 79Retinal Development and DisordersCRISPR and Genetic EngineeringVirus-based gene therapy research

Somatic Gene Editing of GUCY2D by AAV-CRISPR/Cas9 Alters Retinal Structure and Function in Mouse and Macaque

Open access
McCullough, K. Tyler, Boye, Sanford L., Fajardo, Diego, Calabro, Kaitlyn, Peterson, James J., Strang, Christianne E., Chakraborty, Dibyendu, Gloskowski, Sebastian +7 more·2019·Human Gene Therapy

Abstract

Mutations in GUCY2D , the gene encoding retinal guanylate cyclase-1 (retGC1), are the leading cause of autosomal dominant cone–rod dystrophy (CORD6). Significant progress toward clinical application of gene replacement therapy for Leber congenital amaurosis (LCA) due to recessive mutations in GUCY2D (LCA1) has been made, but a different approach is needed to treat CORD6 where gain of function mutations cause dysfunction and dystrophy. The CRISPR/Cas9 gene editing system efficiently disrupts genes at desired loci, enabling complete gene knockout or homology directed repair. Here, adeno-associated virus (AAV)-delivered CRISPR/Cas9 was used specifically to edit/disrupt this gene's early coding sequence in mouse and macaque photoreceptors in vivo , thereby knocking out retGC1 expression and demonstrably altering retinal function and structure. Neither preexisting nor induced Cas9-specific T-cell responses resulted in ocular inflammation in macaques, nor did it limit GUCY2D editing. The results show, for the first time, the ability to perform somatic gene editing in primates using AAV-CRISPR/Cas9 and demonstrate the viability this approach for treating inherited retinal diseases in general and CORD6 in particular.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1089/hum.2018.193

Cites

66 of 66 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Packaging CRISPR gRNA and Cas9 in AAV and delivering it subretinally can specifically disrupt a disease-causing allele in photoreceptors or RPE.

    “By packaging the CRISPR gRNA and Cas9 enzyme-encoding transgene within AAV and delivering the gene editing vector into the subretinal space, it is possible to specifically disrupt the disease-causing allele in the photoreceptors or RPE [Suzuki 2016; Yu 2017; McCullough 2019].”

    From Correcting visual loss by genetics and prosthetics (2020) · cites this paper as McCullough 2019

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. [3]3. Gregory-Evans K, Kelsell RE, Gregory-Evans CY, et al. Autosomal dominant cone–rod retinal dystrophy (CORD6) from heterozygous mutation of GUCY2D, which encodes retinal guanylate cyclase. Ophthalmology 2000;107:55–61 [DOI] [PubMed] [Google Scholar]
  2. [34]34. Maclachlan TK, Lukason M, Collins M, et al. Preclinical safety evaluation of AAV2-sF. Mol Ther 2011;19:326–334 [DOI] [PMC free article] [PubMed] [Google Scholar]

Cited by

Sorted by citations

Authors
McCullough, K. T., Boye, S. L., Fajardo, D., Calabro, K., Peterson, J. J., Strang, C. E., Chakraborty, D., Gloskowski, S., Haskett, S., Samuelsson, S., Jiang, H., Witherspoon, C. D., Gamlin, P. D., Maeder, M. L., & Boye, S. E.
Affiliations
  • University of Florida Health (US)
  • Department of Ophthalmology, University of Florida, Gainesville, Florida
  • University of Alabama at Birmingham (US)
  • Editas Medicine (United States) (US)
Venue
Human Gene Therapy
Published
2019-05
Volume
30
Issue
5
Pages
571-589
ISSN
  • 1043-0342 (ISSN-L)
  • 1557-7422
OpenAlex
W2898172161
Cited by
79
References
66
Citations by year
2026: 2 · 2025: 5 · 2024: 8 · 2023: 12 · 2022: 14 · 2021: 20 · 2020: 15 · 2019: 3
FWCI
3.38
Type
journal article
Language
en
Open access
Locations
  • Human Gene Therapy (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Eye Institute (R01EY024280, P30EY003039, T32EY007132, R01EY025555)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
Keywords
GUCY2D, CRISPR/Cas9 genome editing, AAV gene therapy, somatic gene editing, photoreceptors, inherited retinal disease, T cell response, ocular inflammation, macaque, mice
MeSH terms
Gene Editing, RNA, Guide, CRISPR-Cas Systems, Dependovirus, Animals, Base Sequence, Electroretinography, Genetic Vectors, Guanylate Cyclase, Macaca, Promoter Regions, Genetic, Receptors, Cell Surface, Retina, RNA, Guide, Kinetoplastida, Genes, Reporter, Mice, Knockout, Mice, Molecular Imaging, CRISPR-Cas Systems

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review