Evidence map›Paper›PMID 31229690›Full record

ArticleNeurobiology of disease2019

TDP-43 knockdown causes innate immune activation via protein kinase R in astrocytes.

Thomas J LaRocca, Andrea Mariani, Linda R Watkins, Christopher D Link

Open access · hybridAbstract read
In one paragraph

Article in Neurobiology of disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 5% 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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Loss of TDP-43 Drives Innate Immune Activation Through Relish inInternational journal of molecular sciences · 2026
    Article
  4. TDP-43: [GU]-ardian of the transcriptome.Molecular neurodegeneration · 2026
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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

4 authors at 1 institution in 1 country.

Thomas J LaRoccaDepartement of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA. Electronic address: thomas.larocca@colorado.edu.
Andrea MarianiDepartement of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA.
Linda R WatkinsDepartment of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA.
Christopher D LinkDepartement of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA.
University of Colorado Boulder · US

Funding

TDP-43, RNA Metabolism, and ALS/FTD PathologyR01NS063964 · NINDS · UNIVERSITY OF COLORADO · PI LINK, CHRISTOPHER D. · 2009 to 2019
$3.5M
NINDS NIH HHS R01 NS063964
6 · The paper itself

Abstract

TAR-DNA binding protein 43 (TDP-43) is a multifunctional RNA binding protein directly implicated in the etiology of amyotrophic lateral sclerosis (ALS). Previous studies have demonstrated that loss of TDP-43 function leads to intracellular accumulation of non-coding repetitive element transcripts and double-stranded RNA (dsRNA). These events could cause immune activation and contribute to the neuroinflammation observed in ALS, but this possibility has not been investigated. Here, we knock down TDP-43 in primary rat astrocytes via siRNA, and we use RNA-seq, immunofluorescence, and immunoblotting to show that this results in: 1) accumulation of repetitive element transcripts and dsRNA; and 2) pro-inflammatory gene and protein expression consistent with innate immune signaling and astrocyte activation. We also show that both chemical inhibition and siRNA knockdown of protein kinase R (PKR), a dsRNA-activated kinase implicated in the innate immune response, block the expression of all activation markers assayed. Based on these findings, we suggest that intracellular accumulation of endogenous dsRNA may be a novel and important mechanism underlying the pathogenesis of ALS (and perhaps other neurodegenerative diseases), and that PKR inhibitors may have the potential to prevent reactive astrocytosis in ALS.

Indexed as

AnimalsAnimals, NewbornAstrocytesCells, CulturedCell SurvivalDNA-Binding ProteinsGene Knockdown TechniquesImmunity, InnateInflammation MediatorsRatsRNA, Double-StrandedRNA, Small InterferingDNA-Binding ProteinsInflammation MediatorsRNA, Double-StrandedRNA, Small InterferingTardbp protein, ratAmyotrophic lateral sclerosisProtein kinase RReactive astrocytesTDP-43

Identifiers

PMID31229690
PMCPMC6834892
OpenAlexW2951215750

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.