Evidence map›Paper›PMID 31896760›Full record

ArticleGene therapy2020

A novel gene editing system to treat both Tay-Sachs and Sandhoff diseases.

Li Ou, Michael J Przybilla, Alexandru-Flaviu Tăbăran, Paula Overn, M Gerard O'Sullivan, Xuntian Jiang, Rohini Sidhu, Pamela J Kell, Daniel S Ory, Chester B Whitley

Open access · greenAbstract read
In one paragraph

Article in Gene therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.5field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Nonviral delivery of nCas9 for "safe harbor" integration to treat MPS IVA.Molecular therapy. Methods & clinical development · 2024
    Article
  9. Systematic comparison of rAAV vectors manufactured using large-scale suspension cultures of Sf9 and HEK293 cells.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
  10. Article
  11. Article
  12. A promoterless AAV6.2FF-based lung gene editing platform for the correction of surfactant protein B deficiency.Molecular therapy : the journal of the American Society of Gene Therapy · 2023
    Article
  13. Article
  14. Article
  15. Review
  16. Zebra-Sphinx: Modeling Sphingolipidoses in Zebrafish.International journal of molecular sciences · 2023
    Review
  17. Article
  18. The landscape of CRISPR/Cas9 for inborn errors of metabolism.Molecular genetics and metabolism · 2023
    Review
  19. Article
  20. Article
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

10 authors at 2 institutions in 1 country.

Li OuGene Therapy Center, Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA. ouxxx045@umn.edu.
Michael J PrzybillaDepartment of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, 55455, USA.
Alexandru-Flaviu TăbăranComparative Pathology Shared Resource, University of Minnesota Masonic Cancer Center, Saint Paul, MN, 55108, USA.
Paula OvernComparative Pathology Shared Resource, University of Minnesota Masonic Cancer Center, Saint Paul, MN, 55108, USA.
M Gerard O'SullivanComparative Pathology Shared Resource, University of Minnesota Masonic Cancer Center, Saint Paul, MN, 55108, USA.
Xuntian JiangDepartment of Medicine, Washington University School of Medicine, Saint Louis, MO, USA.ORCID http://orcid.org/0000-0001-9048-7294
Rohini SidhuDepartment of Medicine, Washington University School of Medicine, Saint Louis, MO, USA.
Pamela J KellDepartment of Medicine, Washington University School of Medicine, Saint Louis, MO, USA.
Daniel S OryDepartment of Medicine, Washington University School of Medicine, Saint Louis, MO, USA.
Chester B WhitleyGene Therapy Center, Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA.
University of Minnesota · USWashington University in St. Louis · US

Funding

Women's CancerP30CA077598 · NCI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI Jeffrey S. Miller · 1998 to 2026
$100.4M
WU P&FP30DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI Clay F. Semenkovich · 2013 to 2026
$27.1M
Training & EducationU54NS065768 · NINDS · UNIVERSITY OF MINNESOTA · PI WHITLEY, CHESTER B. · 2009 to 2024
$17.7M
NCI NIH HHS P30 CA077598NIDDK NIH HHS P30 DK020579NINDS NIH HHS U54 NS065768
6 · The paper itself

Abstract

The GM2-gangliosidoses are neurological diseases causing premature death, thus developing effective treatment protocols is urgent. GM2-gangliosidoses result from deficiency of a lysosomal enzyme β-hexosaminidase (Hex) and subsequent accumulation of GM2 gangliosides. Genetic changes in HEXA, encoding the Hex α subunit, or HEXB, encoding the Hex β subunit, causes Tay-Sachs disease and Sandhoff disease, respectively. Previous studies have showed that a modified human Hex µ subunit (HEXM) can treat both Tay-Sachs and Sandhoff diseases by forming a homodimer to degrade GM2 gangliosides. To this end, we applied this HEXM subunit in our PS813 gene editing system to treat neonatal Sandhoff mice. Through AAV delivery of the CRISPR system, a promoterless HEXM cDNA will be integrated into the albumin safe harbor locus, and lysosomal enzyme will be expressed and secreted from edited hepatocytes. 4 months after the i.v. of AAV vectors, plasma MUGS and MUG activities reached up to 144- and 17-fold of wild-type levels (n = 10, p < 0.0001), respectively. More importantly, MUGS and MUG activities in the brain also increased significantly compared with untreated Sandhoff mice (p < 0.001). Further, HPLC-MS/MS analysis showed that GM2 gangliosides in multiple tissues, except the brain, of treated mice were reduced to normal levels. Rotarod analysis showed that coordination and motor memory of treated mice were improved (p < 0.05). Histological analysis of H&E stained tissues showed reduced cellular vacuolation in the brain and liver of treated Sandhoff mice. These results demonstrate the potential of developing a treatment of in vivo genome editing for Tay-Sachs and Sandhoff patients.

Indexed as

Sandhoff DiseaseTay-Sachs DiseaseAnimalsbeta-N-AcetylhexosaminidasesDisease Models, AnimalGene EditingHumansMiceTandem Mass Spectrometrybeta-N-Acetylhexosaminidases

Identifiers

PMID31896760
PMCPMC7260097
OpenAlexW2997976920

What OpenQuestion holds

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LicenceTDM
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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.