Evidence map›Paper›PMID 33837743›Full record

ArticleThe Journal of biological chemistry

Dicer represses the interferon response and the double-stranded RNA-activated protein kinase pathway in mouse embryonic stem cells.

Chandan Gurung, Mona Fendereski, Krishna Sapkota, Jason Guo, Faqing Huang, Yan-Lin Guo

Open access · goldAbstract read
In one paragraph

Article in The Journal of biological chemistry. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  11. Biochemical and structural basis of Dicer helicase function unveiled by resurrecting ancient proteins.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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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

6 authors at 1 institution in 1 country.

Chandan GurungDepartment of Cell and Molecular Biology, The University of Southern Mississippi, Hattiesburg, Mississippi, USA.
Mona FendereskiDepartment of Cell and Molecular Biology, The University of Southern Mississippi, Hattiesburg, Mississippi, USA.
Krishna SapkotaDepartment of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, Mississippi, USA.
Jason GuoDepartment of Cell and Molecular Biology, The University of Southern Mississippi, Hattiesburg, Mississippi, USA.
Faqing HuangDepartment of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, Mississippi, USA.
Yan-Lin GuoDepartment of Cell and Molecular Biology, The University of Southern Mississippi, Hattiesburg, Mississippi, USA. Electronic address: yanlin.guo@usm.edu.
University of Southern Mississippi · US

Funding

Training and Mentoring Core P20GM103476 · NIGMS · UNIVERSITY OF SOUTHERN MISSISSIPPI · PI MICHAEL R GARRETT · 2012 to 2026
$60.2M
Dicer as a repressor of antiviral response in embryonic stem cellsR15GM128196 · NIGMS · UNIVERSITY OF SOUTHERN MISSISSIPPI · PI GUO, YAN-LIN, HUANG, FAQING · 2018 to 2018
$444k
NIGMS NIH HHS P20 GM103476NIGMS NIH HHS R15 GM128196
6 · The paper itself

Abstract

Recent studies have demonstrated that embryonic stem cells (ESCs) are deficient in expressing type I interferons (IFN), the cytokines that play key roles in antiviral responses. However, the underlying molecular mechanisms and biological implications of this finding are poorly understood. In this study, we developed a synthetic RNA-based assay that can simultaneously assess multiple forms of antiviral responses. Dicer is an enzyme essential for RNA interference (RNAi), which is used as a major antiviral mechanism in invertebrates. RNAi activity is detected in wild-type ESCs but is abolished in Dicer knockout ESCs (D-/-ESCs) as expected. Surprisingly, D-/-ESCs have gained the ability to express IFN, which is otherwise deficient in wild-type ESCs. Furthermore, D-/-ESCs have constitutively active double-stranded RNA (dsRNA)-activated protein kinase (PKR), an enzyme that is also involved in antiviral response. D-/-ESCs show increased sensitivity to the cytotoxicity resulting from RNA transfection. The effects of dsRNA can be partly replicated with a synthetic B2RNA corresponding to the retrotransposon B2 short interspersed nuclear element. B2RNA has secondary structure features of dsRNA and accumulates in D-/-ESCs, suggesting that B2RNA could be a cellular RNA that activates PKR and contributes to the decreased cell proliferation and viability of D-/-ESCs. Treatment of D-/-ESCs with a PKR inhibitor and IFNβ-neutralizing antibodies increased cell proliferation rate and cell viability. Based on these findings, we propose that, in ESCs, Dicer acts as a repressor of antiviral responses and plays a key role in the maintenance of proliferation, viability, and pluripotency of ESCs.

Indexed as

AnimalsAntiviral AgentsCell ProliferationCell SurvivalDEAD-box RNA HelicaseseIF-2 KinaseHumansInterferon-gammaInterferon Type IMiceMouse Embryonic Stem CellsProtein Kinase InhibitorsRetroelementsRibonuclease IIIRNA, Double-StrandedRNA InterferenceAntiviral AgentsDEAD-box RNA HelicasesDicer1 protein, mouseeIF-2 KinaseIFNG protein, mouseInterferon-gammaInterferon Type IProtein Kinase InhibitorsRetroelementsRibonuclease IIIRNA, Double-StrandedcytotoxicityDicerdouble-stranded RNA-activated protein kinaseembryonic stem cellinnate immunityinterferon responseRNA interference

Identifiers

PMID33837743
PMCPMC7948645
OpenAlexW3118867008

What OpenQuestion 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 OpenQuestion graph.