Evidence map›Paper›PMID 27717881›Full record

ArticleNeurobiology of disease2016

N-acetylaspartate supports the energetic demands of developmental myelination via oligodendroglial aspartoacylase.

Jeremy S Francis, Ireneusz Wojtas, Vladimir Markov, Steven J Gray, Thomas J McCown, R Jude Samulski, Larissa T Bilaniuk, Dah-Jyuu Wang, Darryl C De Vivo, Christopher G Janson and 1 more

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Neurobiology of disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04833907 (Phase 1/2, Open Label, Sequential Cohort Study of a Single Intracranial Dose of AVASPA Gene Therapy for Treatment of Children With Typical Canavan Disease), which is not on this map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.4field-weighted citation impact, top 8% 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.

NCT04833907 phase1 / phase2enrolling by invitationnot on this mapstarted 2021, after this paper: background citation

Phase 1/2, Open Label, Sequential Cohort Study of a Single Intracranial Dose of AVASPA Gene Therapy for Treatment of Children With Typical Canavan Disease

TypeinterventionalSponsorMyrtelle Inc.Ran2021 to 2027Enrolled24ConditionsCanavan DiseaseArmsrAAV-Olig001-ASPA, Levetiracetam, Prednisone
3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 41 citations in OpenAlex.

  1. Trial
  2. Article
  3. The Emerging Role of N-Acetylaspartate in Cancer.International journal of molecular sciences · 2026
    Review
  4. Article
  5. Aspartate-Glutamate Carrier 1 (International journal of molecular sciences · 2026
    Review
  6. Neuroglial Pathophysiology of Leukodystrophies.Advances in neurobiology · 2025
    Review
  7. Review
  8. Review
  9. Gene therapy for the leukodystrophies: From preclinical animal studies to clinical trials.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

11 authors at 6 institutions in 1 country.

Jeremy S FrancisDepartment of Cell Biology, Cell & Gene Therapy Center, Rowan School of Osteopathic Medicine, Stratford, NJ, USA.
Ireneusz WojtasDepartment of Cell Biology, Cell & Gene Therapy Center, Rowan School of Osteopathic Medicine, Stratford, NJ, USA.
Vladimir MarkovDepartment of Cell Biology, Cell & Gene Therapy Center, Rowan School of Osteopathic Medicine, Stratford, NJ, USA.
Steven J GrayDepartment of Ophthalmology, UNC, Chapel Hill, NC, USA.
Thomas J McCownDepartment of Psychiatry, UNC, Chapel Hill, NC, USA.
R Jude SamulskiDepartment of Pharmacology and Gene Therapy Center, UNC, Chapel Hill, NC, USA.
Larissa T BilaniukDepartment of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Dah-Jyuu WangDepartment of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Darryl C De VivoDepartment of Neurology, Columbia University, NY, USA.
Christopher G JansonDepartment of Neurology & Rehabilitation, University of Illinois at Chicago, Chicago, USA.
Paola LeoneDepartment of Cell Biology, Cell & Gene Therapy Center, Rowan School of Osteopathic Medicine, Stratford, NJ, USA. Electronic address: leonepa@rowan.edu.
Rowan University · USChildren's Hospital of Philadelphia · USUniversity of North Carolina at Chapel Hill · USColumbia University · USUniversity of Illinois Chicago · USUniversity of North Carolina Health Care · US

Funding

Stem Cell-Based Therapy for Canavan DiseaseR15NS088763 · NINDS · ROWAN UNIVERSITY SCHOOL/OSTEOPATHIC MED · PI LEONE, PAOLA · 2015 to 2015
$477k
AAV2-ASPA-Based Metabolic Intervention for Alzheimer's DiseaseR41AG044890 · NIA · ASKLEPIOS BIOPHARMACEUTICAL, INC. · PI MCPHEE, SCOTT WILLIAM JOHN · 2014 to 2014
$270k
NIA NIH HHS R41 AG044890NINDS NIH HHS R15 NS088763
6 · The paper itself

Abstract

Breakdown of neuro-glial N-acetyl-aspartate (NAA) metabolism results in the failure of developmental myelination, manifest in the congenital pediatric leukodystrophy Canavan disease caused by mutations to the sole NAA catabolizing enzyme aspartoacylase. Canavan disease is a major point of focus for efforts to define NAA function, with available evidence suggesting NAA serves as an acetyl donor for fatty acid synthesis during myelination. Elevated NAA is a diagnostic hallmark of Canavan disease, which contrasts with a broad spectrum of alternative neurodegenerative contexts in which levels of NAA are inversely proportional to pathological progression. Recently generated data in the nur7 mouse model of Canavan disease suggests loss of aspartoacylase function results in compromised energetic integrity prior to oligodendrocyte death, abnormalities in myelin content, spongiform degeneration, and motor deficit. The present study utilized a next-generation "oligotropic" adeno-associated virus vector (AAV-Olig001) to quantitatively assess the impact of aspartoacylase reconstitution on developmental myelination. AAV-Olig001-aspartoacylase promoted normalization of NAA, increased bioavailable acetyl-CoA, and restored energetic balance within a window of postnatal development preceding gross histopathology and deteriorating motor function. Long-term effects included increased oligodendrocyte numbers, a global increase in myelination, reversal of vacuolation, and rescue of motor function. Effects on brain energy observed following AAV-Olig001-aspartoacylase gene therapy are shown to be consistent with a metabolic profile observed in mild cases of Canavan disease, implicating NAA in the maintenance of energetic integrity during myelination via oligodendroglial aspartoacylase.

Indexed as

AmidohydrolasesAnimalsAspartic AcidAutophagy-Related ProteinsBasic Helix-Loop-Helix ProteinsBrainCanavan DiseaseChildChild, PreschoolDependovirusDisease ProgressionEnergy MetabolismFemaleGene Expression RegulationGreen Fluorescent ProteinsHEK293 CellsAmidohydrolasesAspartic AcidaspartoacylaseAutophagy-Related ProteinsBasic Helix-Loop-Helix ProteinsGreen Fluorescent ProteinsIntracellular Signaling Peptides and ProteinsMyelin Basic ProteinN-acetylaspartateOlig1 protein, mouseRb1cc1 protein, mouseAspartoacylaseCanavan diseaseEnergyMyelinationN-acetylaspartate

Identifiers

PMID27717881
PMCPMC5102763
OpenAlexW2528301714

What OpenQuestion holds

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Registered trials

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.