Evidence map›Paper›PMID 39460376›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2024

Quantifying and mitigating motor phenotypes induced by antisense oligonucleotides in the central nervous system.

Michael P Moazami, Julia M Rembetsy-Brown, Samantha L Sarli, Holly R McEachern, Feng Wang, Masahiro Ohara, Atish Wagh, Karen Kelly, Pranathi Meda Krishnamurthy, Alexandra Weiss and 7 more

Abstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Divalent siRNA for prion disease.Nucleic acids research · 2026
    Article
  7. Article
  8. Divalent siRNA for prion disease.bioRxiv : the preprint server for biology · 2026
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Chemical Modifications in Nucleic Acid Therapeutics.Methods in molecular biology (Clifton, N.J.) · 2025
    Review
  19. Article
  20. Article
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

17 authors.

Michael P MoazamiRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Julia M Rembetsy-BrownRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Samantha L SarliRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Holly R McEachernRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Feng WangRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Masahiro OharaRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Atish WaghRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Karen KellyRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Pranathi Meda KrishnamurthyRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA.
Alexandra WeissDepartment of Neurology, UMass Chan Medical School, Worcester, MA 01605 USA.
Miklos MarosfoiDepartment of Radiology, UMass Chan Medical School, Worcester, MA 01605 USA.
Robert M KingDepartment of Radiology, UMass Chan Medical School, Worcester, MA 01605 USA; Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA.
Mona MotwaniProgram in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, UMass Chan Medical School, Worcester, MA 01605 USA.
Heather Gray-EdwardsDepartment of Radiology, UMass Chan Medical School, Worcester, MA 01605 USA.
Katherine A FitzgeraldProgram in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, UMass Chan Medical School, Worcester, MA 01605 USA.
Robert H BrownDepartment of Neurology, UMass Chan Medical School, Worcester, MA 01605 USA.
Jonathan K WattsRNA Therapeutics Institute, UMass Chan Medical School, Worcester, MA 01605 USA; Department of Biochemistry and Molecular Biotechnology, UMass Chan Medical School, Worcester, MA 01605, USA. Electronic address: jonathan.watts@umassmed.edu.

Funding

Next-generation antisense therapeutics for ALS and frontotemporal dementiaR01NS111990 · NINDS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI Robert H Brown, Jonathan K Watts · 2019 to 2026
$5.2M
NINDS NIH HHS R01 NS111990
6 · The paper itself

Abstract

Antisense oligonucleotides (ASOs) are emerging as a promising class of therapeutics for neurological diseases. When injected directly into cerebrospinal fluid, ASOs distribute broadly across brain regions and exert long-lasting therapeutic effects. However, many phosphorothioate (PS)-modified gapmer ASOs show transient motor phenotypes when injected into the cerebrospinal fluid, ranging from reduced motor activity to ataxia or acute seizure-like phenotypes. Using a behavioral scoring assay customized to reflect the timing and nature of these effects, we show that both sugar and phosphate modifications influence acute motor phenotypes. Among sugar analogs, DNA induces the strongest motor phenotypes while 2'-substituted RNA modifications improve the tolerability of PS ASOs. Reducing the PS content of gapmer ASOs, which contain a stretch of PS-DNA, improves their toxicity profile, but in some cases also reduces efficacy or duration of effect. We show that this acute toxicity is not mediated by major nucleic acid sensing immune pathways. Formulating ASOs with divalent ions before injection and avoiding phosphate-based buffers modestly improved tolerability through mechanisms at least partially distinct from reduced PS content. Overall, our work identifies and quantifies an understudied aspect of oligonucleotide toxicology in the CNS, explores its mechanism, and presents platform-level medicinal chemistry and formulation approaches that improve tolerability of this class of compounds.

Indexed as

Oligonucleotides, AntisensePhenotypeAnimalsCentral Nervous SystemHumansMaleMiceMotor ActivityPhosphorothioate OligonucleotidesOligonucleotides, AntisensePhosphorothioate Oligonucleotidesantisense therapeuticsartificial CSFCNS deliverygapmer ASOsneurotherapeuticsneurotoxicityoligonucleotidesphosphate bufferphosphorothioatetoxicology

Identifiers

PMID39460376
PMCPMC11638874

What Socratic 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 Socratic graph.