Evidence map›Paper›PMID 24067963›Full record

ArticleJournal of virology2013

SAMHD1 restricts herpes simplex virus 1 in macrophages by limiting DNA replication.

Eui Tae Kim, Tommy E White, Alberto Brandariz-Núñez, Felipe Diaz-Griffero, Matthew D Weitzman

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
7.9field-weighted citation impact, top 2% 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

90 citing papers in PubMed, 132 citations in OpenAlex.

  1. Article
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  7. Macrophage Cell Cycle.Results and problems in cell differentiation · 2024
    Review
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30 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Eui Tae KimDepartment of Pathology and Laboratory Medicine, University of Pennsylvania Perelman Medical School and Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
Tommy E White
Alberto Brandariz-Núñez
Felipe Diaz-Griffero
Matthew D Weitzman
Albert Einstein College of Medicine · USChildren's Hospital of Philadelphia · US

Funding

Role of Cellular Factors in Retroviral Uncoating and Synthesis of Viral DNAR01AI087390 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI DIAZ-GRIFFERO, FELIPE · 2010 to 2024
$6.8M
NIAID NIH HHS R01 AI087390
6 · The paper itself

Abstract

Macrophages play important roles in host immune defense against virus infection. During infection by herpes simplex virus 1 (HSV-1), macrophages acquire enhanced antiviral potential. Restriction of HSV-1 replication and progeny production is important to prevent viral spread, but the cellular mechanisms that inhibit the DNA virus in macrophages are unknown. SAMHD1 was recently identified as a retrovirus restriction factor highly expressed in macrophages. The SAMHD1 protein is expressed in both undifferentiated monocytes and differentiated macrophages, but retroviral restriction is limited to differentiated cells by modulation of SAMHD1 phosphorylation. It is proposed to block reverse transcription of retroviral RNA into DNA by depleting cellular deoxynucleotide triphosphates (dNTPs). Viruses with DNA genomes do not employ reverse transcription during infection, but replication of their viral genomes is also dependent on intracellular dNTP concentrations. Here, we demonstrate that SAMHD1 restricts replication of the HSV-1 DNA genome in differentiated macrophage cell lines. Depleting SAMHD1 in THP-1 cells enhanced HSV-1 replication, while ectopic overexpression of SAMHD1 in U937 cells repressed HSV-1 replication. SAMHD1 did not impact viral gene expression from incoming HSV-1 viral genomes. HSV-1 restriction involved the dNTP triphosphohydrolase activity of SAMHD1 and was partially overcome by addition of exogenous deoxynucleosides. Unlike retroviruses, restriction of HSV-1 was not affected by SAMHD1 phosphorylation status. Our results suggest that SAMHD1 functions broadly to inhibit replication of DNA viruses in nondividing macrophages.

Indexed as

DNA ReplicationCell LineDown-RegulationHerpes SimplexHerpesvirus 1, HumanHost-Pathogen InteractionsHumansMacrophagesMonomeric GTP-Binding ProteinsSAM Domain and HD Domain-Containing Protein 1Virus ReplicationMonomeric GTP-Binding ProteinsSAM Domain and HD Domain-Containing Protein 1SAMHD1 protein, human

Identifiers

PMID24067963
PMCPMC3838123
OpenAlexW2098619105

What OpenQuestion holds

Textmetadata
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.