Evidence map›Paper›PMID 30012581›Full record

ArticleEMBO molecular medicine2018

mitoTev-TALE: a monomeric DNA editing enzyme to reduce mutant mitochondrial DNA levels.

Claudia V Pereira, Sandra R Bacman, Tania Arguello, Ugne Zekonyte, Sion L Williams, David R Edgell, Carlos T Moraes

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
3.6field-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

48 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Therapies for Mitochondrial Disease: Past, Present, and Future.Journal of inherited metabolic disease · 2025
    Review
  6. Review
  7. Review
  8. Review
  9. Review
  10. mitoTALEN reduces the mutant mtDNA load in neurons.Molecular therapy. Nucleic acids · 2024
    Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Trends and prospects in mitochondrial genome editing.Experimental & molecular medicine · 2023
    Review
  17. Article
  18. Review
  19. Review
  20. Current advances in gene therapy of mitochondrial diseases.Journal of translational medicine · 2022
    Review
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

7 authors at 2 institutions in 2 countries.

Claudia V PereiraDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
Sandra R BacmanDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
Tania ArguelloDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
Ugne ZekonyteDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
Sion L WilliamsDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
David R EdgellDepartment of Biochemistry, Schulich School of Medicine and Dentistry University of Western Ontario, London, ON, Canada.
Carlos T MoraesDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA cmoraes@med.miami.edu.ORCID 0000-0002-8077-7092
University of Miami · USWestern University · CA

Funding

Shared Equipment ModuleP30EY014801 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Dmitry V Ivanov · 2004 to 2026
$12.2M
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
Mitochondrial Dysfunction in Neurodegeneration and Compensatory ApproachesR01AG036871 · NIA · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MORAES, CARLOS TORRES · 2010 to 2020
$3.3M
NEI NIH HHS P30 EY014801NEI NIH HHS R01 EY010804NIA NIH HHS R01 AG036871NINDS NIH HHS R01 NS079965
6 · The paper itself

Abstract

Pathogenic mitochondrial DNA (mtDNA) mutations often co-exist with wild-type molecules (mtDNA heteroplasmy). Phenotypes manifest when the percentage of mutant mtDNA is high (70-90%). Previously, our laboratory showed that mitochondria-targeted transcription activator-like effector nucleases (mitoTALENs) can eliminate mutant mtDNA from heteroplasmic cells. However, mitoTALENs are dimeric and relatively large, making it difficult to package their coding genes into viral vectors, limiting their clinical application. The smaller monomeric GIY-YIG homing nuclease from T4 phage (I-TevI) provides a potential alternative. We tested whether molecular hybrids (mitoTev-TALEs) could specifically bind and cleave mtDNA of patient-derived cybrids harboring different levels of the m.8344A>G mtDNA point mutation, associated with myoclonic epilepsy with ragged-red fibers (MERRF). We tested two mitoTev-TALE designs, one of which robustly shifted the mtDNA ratio toward the wild type. When this mitoTev-TALE was tested in a clone with high levels of the MERRF mutation (91% mutant), the shift in heteroplasmy resulted in an improvement of oxidative phosphorylation function. mitoTev-TALE provides an effective architecture for mtDNA editing that could facilitate therapeutic delivery of mtDNA editing enzymes to affected tissues.

Indexed as

Cells, CulturedDNA, MitochondrialDNA RepairEndonucleasesHumansHydrolysisMERRF SyndromeMolecular Targeted TherapyProtein BindingRecombinant ProteinsTranscription Activator-Like Effector NucleasesViral ProteinsDNA, MitochondrialEndonucleasesRecombinant ProteinsTranscription Activator-Like Effector NucleasesViral ProteinsheteroplasmyI‐TevImitochondrial DNAmitoTev‐TALEmonomeric

Identifiers

PMID30012581
PMCPMC6127889
OpenAlexW2883621329

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.