Evidence map›Paper›PMID 26444021›Full record

ArticleJournal of Huntington's disease2015

Safety of Striatal Infusion of siRNA in a Transgenic Huntington's Disease Mouse Model.

Emily Johnson, Kathryn Chase, Sarah McGowan, Erica Mondo, Edith Pfister, Eric Mick, Randall H Friedline, Jason K Kim, Ellen Sapp, Marian DiFiglia and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of Huntington's disease, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 35% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

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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 2 institutions in 1 country.

Emily Johnson *Department of Medicine, University of Massachusetts Medical School, Worcester, MA.
Kathryn Chase *Department of Medicine, University of Massachusetts Medical School, Worcester, MA.
Sarah McGowanDepartment of Medicine, University of Massachusetts Medical School, Worcester, MA.
Erica MondoDepartment of Medicine, University of Massachusetts Medical School, Worcester, MA.
Edith PfisterDepartment of Medicine, University of Massachusetts Medical School, Worcester, MA.
Eric MickDepartment of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA.
Randall H FriedlineDepartment of Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA.
Jason K KimDepartment of Medicine, University of Massachusetts Medical School, Worcester, MA.
Ellen SappDepartment of Massachusetts General Hospital, Charlestown, MA.
Marian DiFigliaDepartment of Massachusetts General Hospital, Charlestown, MA.
Neil AroninDepartment of Medicine, University of Massachusetts Medical School, Worcester, MA.
University of Massachusetts Chan Medical School · USMassachusetts General Hospital · US

Funding

University of Massachusetts Center for Clinical Science and Translational SupplementUL1TR001453 · NCATS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LUZURIAGA, KATHERINE F · 2015 to 2024
$39.0M
University of Massachusetts Center for Clinical and Translational ScienceUL1TR000161 · NCATS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LUZURIAGA, KATHERINE F · 2012 to 2015
$11.0M
SIGNALING MECHANISMS IN NEURONAL DEGENERATIONR01NS038194 · NINDS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI ARONIN, NEIL · 1999 to 2014
$6.2M
UMass Mouse Metabolic Phenotyping CenterU24DK093000 · NIDDK · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI KIM, JASON K · 2011 to 2015
$2.1M
NCATS NIH HHS UL1 TR000161NCATS NIH HHS UL1 TR001453NIDDK NIH HHS U24 DK093000NIDDK NIH HHS U24-DK093000NINDS NIH HHS NS38194NINDS NIH HHS R01 NS038194
6 · The paper itself

Abstract

backgroundThe immune system In Huntington's disease (HD) is activated and may overreact to some therapies. RNA interference using siRNA lowers mutant huntingtin (mHTT) protein but could increase immune responses.

objectiveTo examine the innate immune response following siRNA infusion into the striatum of wild-type (WT) and HD transgenic (YAC128) mice.

methodssiRNAs (2'-O-methyl phosphorothioated) were infused unilaterally into striatum of four month-old WT and YAC128 mice for 28 days. Microglia number and morphology (resting (normal), activated, dystrophic), cytokine levels, and DARPP32-positive neurons were measured in striatum immediately or 14 days post-infusion. Controls included contralateral untreated striatum, and PBS and sham treated striata.

resultsThe striata of untreated YAC128 mice had significantly fewer resting microglia and more dystrophic microglia than WT mice, but no difference from WT in the proportion of activated microglia or total number of microglia. siRNA infusion increased the total number of microglia in YAC128 mice compared to PBS treated and untreated striata and increased the proportion of activated microglia in WT and YAC128 mice compared to untreated striata and sham treated groups. Cytokine levels were low and siRNA infusion resulted in only modest changes in those levels. siRNA infusion did not change the number of DARPP32-positive neurons.

conclusionFindings suggest that siRNA infusion may be a safe method for lowering mHTT levels in the striatum in young animals, since treatment does not produce a robust cytokine response or cause neurotoxicity. The potential long-term effects of a sustained increase in total and activated microglia after siRNA infusion in HD mice need to be explored.

Indexed as

AnimalsBrainCytokinesDisease Models, AnimalHuntington DiseaseImmunity, InnateMiceMice, TransgenicRNA, Small InterferingTreatment OutcomeCytokinesRNA, Small InterferingcytokinesHuntington’s diseaseimmune responsemicrogliasiRNA

Identifiers

PMID26444021
PMCPMC5058343
OpenAlexW1959005184

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.