Evidence map›Paper›PMID 38036771›Full record

ArticleNature metabolism2023

Efficient elimination of MELAS-associated m.3243G mutant mitochondrial DNA by an engineered mitoARCUS nuclease.

Wendy K Shoop, Janel Lape, Megan Trum, Alea Powell, Emma Sevigny, Adam Mischler, Sandra R Bacman, Flavia Fontanesi, Jeff Smith, Derek Jantz and 2 more

Abstract read
In one paragraph

Article in Nature metabolism, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
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

24 citing papers in PubMed.

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  17. Therapies for Mitochondrial Disease: Past, Present, and Future.Journal of inherited metabolic disease · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Wendy K ShoopPrecision BioSciences, Durham, NC, USA.ORCID 0000-0001-8071-625X
Janel LapePrecision BioSciences, Durham, NC, USA.
Megan TrumPrecision BioSciences, Durham, NC, USA.
Alea PowellPrecision BioSciences, Durham, NC, USA.
Emma SevignyPrecision BioSciences, Durham, NC, USA.
Adam MischlerPrecision BioSciences, Durham, NC, USA.
Sandra R BacmanDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
Flavia FontanesiDepartment of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID 0000-0003-0509-3835
Jeff SmithPrecision BioSciences, Durham, NC, USA.
Derek JantzPrecision BioSciences, Durham, NC, USA.
Cassandra L GorsuchPrecision BioSciences, Durham, NC, USA. cassie.gorsuch@precisionbiosciences.com.ORCID 0000-0002-6993-6910
Carlos T MoraesDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA. CMoraes@med.miami.edu.ORCID 0000-0002-8077-7092

Funding

SETTING THE STAGE FOR REPLACEMENT OF MITOCHONDRIAL GENESR01EY010804 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MORAES, CARLOS TORRES · 1995 to 2025
$9.4M
Cellular and Molecular Consequences of Respiratory Chain Defects in NeuronsR01NS079965 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MORAES, CARLOS TORRES · 2012 to 2023
$3.9M
Mouse Models with Defective Respiratory Complexes in CNSR01NS041777 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MORAES, CARLOS TORRES · 2001 to 2009
$2.4M
NEI NIH HHS R01 EY010804NINDS NIH HHS R01 NS041777NINDS NIH HHS R01 NS079965
6 · The paper itself

Abstract

Nuclease-mediated editing of heteroplasmic mitochondrial DNA (mtDNA) seeks to preferentially cleave and eliminate mutant mtDNA, leaving wild-type genomes to repopulate the cell and shift mtDNA heteroplasmy. Various technologies are available, but many suffer from limitations based on size and/or specificity. The use of ARCUS nucleases, derived from naturally occurring I-CreI, avoids these pitfalls due to their small size, single-component protein structure and high specificity resulting from a robust protein-engineering process. Here we describe the development of a mitochondrial-targeted ARCUS (mitoARCUS) nuclease designed to target one of the most common pathogenic mtDNA mutations, m.3243A>G. mitoARCUS robustly eliminated mutant mtDNA without cutting wild-type mtDNA, allowing for shifts in heteroplasmy and concomitant improvements in mitochondrial protein steady-state levels and respiration. In vivo efficacy was demonstrated using a m.3243A>G xenograft mouse model with mitoARCUS delivered systemically by adeno-associated virus. Together, these data support the development of mitoARCUS as an in vivo gene-editing therapeutic for m.3243A>G-associated diseases.

Indexed as

DNA, MitochondrialMELAS SyndromeAnimalsHumansMiceMitochondriaMutationDNA, Mitochondrial

Identifiers

PMID38036771
PMCPMC10730414

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Registered trials

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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.