Evidence map›Paper›PMID 19812163›Full record

ArticleJournal of virology2009

Hepatitis C virus (HCV) proteins induce NADPH oxidase 4 expression in a transforming growth factor beta-dependent manner: a new contributor to HCV-induced oxidative stress.

Howard E Boudreau, Suzanne U Emerson, Agnieszka Korzeniowska, Meghan A Jendrysik, Thomas L Leto

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

73 citing papers in PubMed, 129 citations in OpenAlex.

  1. Review
  2. Review
  3. Lipopeptides fromBiotech (Basel (Switzerland)) · 2026
    Article
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  5. Review
  6. Article
  7. International journal of molecular sciences · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. NOX as a Therapeutic Target in Liver Disease.Antioxidants (Basel, Switzerland) · 2022
    Review
  15. Review
  16. Oxidative Stress-Related Mechanisms in SARS-CoV-2 Infections.Oxidative medicine and cellular longevity · 2022
    Review
  17. Review
  18. Functions of ROS in Macrophages and Antimicrobial Immunity.Antioxidants (Basel, Switzerland) · 2021
    Review
  19. Review
  20. Article

13 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.

Howard E BoudreauLaboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 12441 Parklawn Drive, Rockville, MD 20852, USA.
Suzanne U Emerson
Agnieszka Korzeniowska
Meghan A Jendrysik
Thomas L Leto
National Institutes of Health · USNational Institute of Allergy and Infectious Diseases · US

Funding

NOX family NADPH oxidases: roles in innate immunity and inflammatory diseaseZIAAI000614 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI LETO, THOMAS · 2009 to 2024
$16.2M
In Vivo And In Vitro Studies Of Hepatitis E VirusZIAAI000596 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI EMERSON, SUZANNE U · 2009 to 2014
$3.4M
Intramural NIH HHS
6 · The paper itself

Abstract

Viral hepatitis-induced oxidative stress accompanied by increased levels of transforming growth factor beta (TGF-beta) and hepatic fibrosis are hallmarks of hepatitis C virus (HCV) infection. The mechanisms of redox regulation in the pathogenesis of HCV-induced liver disease are not clearly understood. The results of our current studies suggest that reactive oxygen species (ROS) derived from Nox4, a member of the NADPH oxidase (Nox) family, could play a role in HCV-induced liver disease. We found that the expression of HCV (genotype 1a) cDNA constructs (full-length and subgenomic), core protein alone, viral RNA, or replicating HCV (JFH-AM2) induced Nox4 mRNA expression and ROS generation in human hepatocyte cell lines (Huh-7, Huh-7.5, HepG2, and CHL). Conversely, hepatocytes expressing Nox4 short hairpin RNA (shRNA) or an inactive dominant negative form of Nox4 showed decreased ROS production when cells were transfected with HCV. The promoters of both human and murine Nox4 were used to demonstrate transcriptional regulation of Nox4 mRNA by HCV, and a luciferase reporter tied to an approximately 2-kb promoter region of Nox4 identified HCV-responsive regulatory regions modulating the expression of Nox4. Furthermore, the human Nox4 promoter was responsive to TGF-beta1, and the HCV core-dependent induction of Nox4 was blocked by antibody against TGF-beta or the expression of dominant negative TGF-beta receptor type II. These findings identified HCV as a regulator of Nox4 gene expression and subsequent ROS production through an autocrine TGF-beta-dependent mechanism. Collectively, these data provide evidence that HCV-induced Nox4 contributes to ROS production and may be related to HCV-induced liver disease.

Indexed as

Oxidative StressAnimalsGene Expression Regulation, EnzymologicHepacivirusHep G2 CellsHumansMiceNADPH Oxidase 4NADPH OxidasesReactive Oxygen SpeciesSuperoxidesTransforming Growth Factor betaViral ProteinsNADPH Oxidase 4NADPH OxidasesNOX4 protein, humanReactive Oxygen SpeciesSuperoxidesTransforming Growth Factor betaViral Proteins

Identifiers

PMID19812163
PMCPMC2786832
OpenAlexW2168515791

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.