Evidence map›Paper›PMID 17080200›Full record

ArticleThe Journal of clinical investigation2006

Gene therapy of metachromatic leukodystrophy reverses neurological damage and deficits in mice.

Alessandra Biffi, Alessia Capotondo, Stefania Fasano, Ubaldo del Carro, Sergio Marchesini, Hisaya Azuma, Maria Chiara Malaguti, Stefano Amadio, Riccardo Brambilla, Markus Grompe and 3 more

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01560182 (A Phase I/II Clinical Trial of Hematopoietic Stem Cell Gene Therapy for the Treatment of Metachromatic Leukodystrophy), which is not on this map. Cited by 121 papers.

0numbers the graph read from it
0cells of the map it votes in
121citing papers in PubMed
6.4field-weighted citation impact, top 3% 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.

NCT01560182 phase1 / phase2completednot on this mapstarted 2010, after this paper: background citation

A Phase I/II Clinical Trial of Hematopoietic Stem Cell Gene Therapy for the Treatment of Metachromatic Leukodystrophy

TypeinterventionalSponsorOrchard TherapeuticsRan2010 to 2025Enrolled20ConditionsLysosomal Storage Disease, Metachromatic LeukodystrophyArmsOTL-200 Gene Therapy
3 · Its place in the literature

Who cites it

121 citing papers in PubMed, 224 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Stem cell and gene therapies for leukodystrophies.Molecular therapy. Methods & clinical development · 2025
    Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Hematopoietic stem cell gene therapy to halt neurodegeneration.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  17. Gene therapy for the leukodystrophies: From preclinical animal studies to clinical trials.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  18. Novel strategies in Parkinson's disease treatment: a review.Frontiers in molecular neuroscience · 2024
    Review
  19. Article
  20. Article

61 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 8 institutions in 3 countries.

Alessandra BiffiSan Raffaele Telethon Institute for Gene Therapy, Vita-Salute San Raffaele University, Milan, Italy. biffi.alessandra@hsr.it
Alessia Capotondo
Stefania Fasano
Ubaldo del Carro
Sergio Marchesini
Hisaya Azuma
Maria Chiara Malaguti
Stefano Amadio
Riccardo Brambilla
Markus Grompe
Claudio Bordignon
Angelo Quattrini
Luigi Naldini
Istituti di Ricovero e Cura a Carattere Scientifico · ITThe San Raffaele Telethon Institute for Gene Therapy · ITOregon Health & Science University · USBrescia University · USGenomics (United Kingdom) · GBIstituto di Ricovero e Cura a Carattere Scientifico San RaffaeleSan Raffaele University of Rome · ITVita-Salute San Raffaele University · IT

Funding

Telethon TGT06S01
6 · The paper itself

Abstract

Metachromatic leukodystrophy (MLD) is a demyelinating lysosomal storage disorder for which new treatments are urgently needed. We previously showed that transplantation of gene-corrected hematopoietic stem progenitor cells (HSPCs) in presymptomatic myeloablated MLD mice prevented disease manifestations. Here we show that HSC gene therapy can reverse neurological deficits and neuropathological damage in affected mice, thus correcting an overt neurological disease. The efficacy of gene therapy was dependent on and proportional to arylsulfatase A (ARSA) overexpression in the microglia progeny of transplanted HSPCs. We demonstrate a widespread enzyme distribution from these cells through the CNS and a robust cross-correction of neurons and glia in vivo. Conversely, a peripheral source of enzyme, established by transplanting ARSA-overexpressing hepatocytes from transgenic donors, failed to effectively deliver the enzyme to the CNS. These results indicate that the recruitment of gene-modified, enzyme-overexpressing microglia makes the enzyme bioavailable to the brain and makes therapeutic efficacy and disease correction attainable. Overall, our data provide a strong rationale for implementing HSPC gene therapy in MLD patients.

Indexed as

AnimalsBehavior, AnimalCell DifferentiationCerebroside-SulfataseFemaleGenetic TherapyHematopoietic Stem CellsLeukodystrophy, MetachromaticMaleMiceMice, Inbred C57BLMice, KnockoutMicrogliaNeurophysiologySulfoglycosphingolipidsCerebroside-SulfataseSulfoglycosphingolipids

Identifiers

PMID17080200
PMCPMC1626132
OpenAlexW2120584824

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.