Evidence map›Paper›PMID 29226998›Full record

ArticleAnnals of neurology2018

Antisense suppression of glial fibrillary acidic protein as a treatment for Alexander disease.

Tracy L Hagemann, Berit Powers, Curt Mazur, Aneeza Kim, Steven Wheeler, Gene Hung, Eric Swayze, Albee Messing

Abstract read
In one paragraph

Article in Annals of neurology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 92 citations in OpenAlex.

  1. Pooled it
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  5. Review
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  13. Neuroglial Pathophysiology of Leukodystrophies.Advances in neurobiology · 2025
    Review
  14. Review
  15. Gene therapy for the leukodystrophies: From preclinical animal studies to clinical trials.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  16. Review
  17. Article
  18. Article
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  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

8 authors at 2 institutions in 1 country.

Tracy L HagemannWaisman Center, University of Wisconsin-Madison, Madison, WI.
Berit PowersIonis Pharmaceuticals, Carlsbad, CA.
Curt MazurIonis Pharmaceuticals, Carlsbad, CA.
Aneeza KimIonis Pharmaceuticals, Carlsbad, CA.
Steven WheelerWaisman Center, University of Wisconsin-Madison, Madison, WI.
Gene HungIonis Pharmaceuticals, Carlsbad, CA.
Eric SwayzeIonis Pharmaceuticals, Carlsbad, CA.
Albee MessingWaisman Center, University of Wisconsin-Madison, Madison, WI.
Ionis Pharmaceuticals (United States) · USUniversity of Wisconsin–Madison · US

Funding

WISCONSIN CENTER ON MENTAL RETARDATION: CORE SUPPORTP30HD003352 · NICHD · UNIVERSITY OF WISCONSIN-MADISON · PI SVAREN, JOHN P · 1985 to 2015
$25.2M
Waisman Intellectual and Developmental Disabilities Research Center Down Syndrome RegistryU54HD090256 · NICHD · UNIVERSITY OF WISCONSIN-MADISON · PI CHANG, QIANG · 2016 to 2020
$6.0M
Patient-derived iPS cells as model systems for AxDP01HD076892 · NICHD · UNIVERSITY OF WISCONSIN-MADISON · PI NEDERGAARD, MAIKEN · 2014 to 2018
$6.0M
NICHD NIH HHS P01 HD076892NICHD NIH HHS P30 HD003352NICHD NIH HHS U54 HD090256
6 · The paper itself

Abstract

objectiveAlexander disease is a fatal leukodystrophy caused by autosomal dominant gain-of-function mutations in the gene for glial fibrillary acidic protein (GFAP), an intermediate filament protein primarily expressed in astrocytes of the central nervous system. A key feature of pathogenesis is overexpression and accumulation of GFAP, with formation of characteristic cytoplasmic aggregates known as Rosenthal fibers. Here we investigate whether suppressing GFAP with antisense oligonucleotides could provide a therapeutic strategy for treating Alexander disease.

methodsIn this study, we use GFAP mutant mouse models of Alexander disease to test the efficacy of antisense suppression and evaluate the effects on molecular and cellular phenotypes and non-cell-autonomous toxicity. Antisense oligonucleotides were designed to target the murine Gfap transcript, and screened using primary mouse cortical cultures. Lead oligonucleotides were then tested for their ability to reduce GFAP transcripts and protein, first in wild-type mice with normal levels of GFAP, and then in adult mutant mice with established pathology and elevated levels of GFAP.

resultsNearly complete and long-lasting elimination of GFAP occurred in brain and spinal cord following single bolus intracerebroventricular injections, with a striking reversal of Rosenthal fibers and downstream markers of microglial and other stress-related responses. GFAP protein was also cleared from cerebrospinal fluid, demonstrating its potential utility as a biomarker in future clinical applications. Finally, treatment led to improved body condition and rescue of hippocampal neurogenesis.

interpretationThese results demonstrate the efficacy of antisense suppression for an astrocyte target, and provide a compelling therapeutic approach for Alexander disease. Ann Neurol 2018;83:27-39.

Indexed as

Alexander DiseaseAnimalsBiomarkersBrain ChemistryGene Expression RegulationGlial Fibrillary Acidic ProteinHippocampusHumansInjections, IntraventricularMiceMice, Inbred C57BLMutationNeurogenesisOligonucleotides, AntisenseSpinal CordBiomarkersGlial Fibrillary Acidic Proteinglial fibrillary astrocytic protein, mouseOligonucleotides, Antisense

Identifiers

PMID29226998
PMCPMC5876100
OpenAlexW2771123230

What OpenQuestion holds

Textmetadata
LicenceTDM
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.