Evidence map›Paper›PMID 22855484›Full record

ArticleJournal of virology2012

Hepatitis C virus (HCV) induces formation of stress granules whose proteins regulate HCV RNA replication and virus assembly and egress.

Urtzi Garaigorta, Markus H Heim, Bryan Boyd, Stefan Wieland, Francis V Chisari

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

84 citing papers in PubMed, 117 citations in OpenAlex.

  1. Article
  2. Review
  3. Emerging roles of stress granules in liver diseases: a comprehensive review.Frontiers in cell and developmental biology · 2025
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. T-Cell Intracellular Antigen 1-Like Protein in Physiology and Pathology.International journal of molecular sciences · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. The Emerging Role of Stress Granules in Hepatocellular Carcinoma.International journal of molecular sciences · 2021
    Review

24 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 1 institution in 1 country.

Urtzi GaraigortaDepartment of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, USA.
Markus H Heim
Bryan Boyd
Stefan Wieland
Francis V Chisari
Scripps Research Institute · US

Funding

Innate Control of Hepatitis C Virus Infection: Antiviral and Evasion MechanismsR01AI079043 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI CHISARI, FRANCIS VINCENT · 2010 to 2014
$2.3M
Innate Control of Hepatitis C Virus Infection: Antiviral and Evasion MechanismsR56AI079043 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI CHISARI, FRANCIS VINCENT · 2008 to 2009
$949k
NIAID NIH HHS AI-079043NIAID NIH HHS R01 AI079043NIAID NIH HHS R56 AI079043
6 · The paper itself

Abstract

Stress granules (SGs) are cytoplasmic structures that are induced in response to environmental stress, including viral infections. Here we report that hepatitis C virus (HCV) triggers the appearance of SGs in a PKR- and interferon (IFN)-dependent manner. Moreover, we show an inverse correlation between the presence of stress granules and the induction of IFN-stimulated proteins, i.e., MxA and USP18, in HCV-infected cells despite high-level expression of the corresponding MxA and USP18 mRNAs, suggesting that interferon-stimulated gene translation is inhibited in stress granule-containing HCV-infected cells. Finally, in short hairpin RNA (shRNA) knockdown experiments, we found that the stress granule proteins T-cell-restricted intracellular antigen 1 (TIA-1), TIA1-related protein (TIAR), and RasGAP-SH3 domain binding protein 1 (G3BP1) are required for efficient HCV RNA and protein accumulation at early time points in the infection and that G3BP1 and TIA-1 are required for intracellular and extracellular infectious virus production late in the infection, suggesting that they are required for virus assembly. In contrast, TIAR downregulation decreases extracellular infectious virus titers with little effect on intracellular RNA content or infectivity late in the infection, suggesting that it is required for infectious particle release. Collectively, these results illustrate that HCV exploits the stress granule machinery at least two ways: by inducing the formation of SGs by triggering PKR phosphorylation, thereby downregulating the translation of antiviral interferon-stimulated genes, and by co-opting SG proteins for its replication, assembly, and egress.

Indexed as

Virus AssemblyVirus ReleaseCarrier ProteinsCell LineCell Line, TumorCytoplasmic GranulesDNA HelicasesDown-RegulationeIF-2 KinaseEndopeptidasesGTP-Binding ProteinsHEK293 CellsHepacivirusHumansInterferon-betaMyxovirus Resistance ProteinsCarrier ProteinsDNA HelicaseseIF-2 KinaseEndopeptidasesG3BP1 protein, humanGTP-Binding ProteinsInterferon-betaMX1 protein, humanMyxovirus Resistance ProteinsPoly(A)-Binding ProteinsPoly-ADP-Ribose Binding ProteinsRNA-Binding ProteinsRNA HelicasesRNA, MessengerRNA Recognition Motif ProteinsRNA, Small InterferingRNA, ViralT-Cell Intracellular Antigen-1TIA1 protein, humanTIAL1 protein, humanUbiquitin ThiolesteraseUSP18 protein, human

Identifiers

PMID22855484
PMCPMC3457181
OpenAlexW2164180007

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.