Evidence map›Paper›PMID 19291820›Full record

ReviewWorld journal of gastroenterology2009

Hepatitis C virus and ethanol alter antigen presentation in liver cells.

Natalia A Osna

Open access · greenAbstract readReview
In one paragraph

Review in World journal of gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

17 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Second hits exacerbate alcohol-related organ damage: an update.Alcohol and alcoholism (Oxford, Oxfordshire) · 2021
    Review
  4. Observational
  5. Review
  6. Review
  7. Update on Alcohol and Viral Hepatitis.Journal of clinical and translational hepatology · 2014
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Ethanol inhibits antigen presentation by dendritic cells.Clinical and vaccine immunology : CVI · 2011
    Article
  15. Innate immunity in alcoholic liver disease.American journal of physiology. Gastrointestinal and liver physiology · 2011
    Review
  16. Effects of ethanol on the proteasome interacting proteins.World journal of gastroenterology · 2010
    Review
  17. Impaired methylation as a novel mechanism for proteasome suppression in liver cells.Biochemical and biophysical research communications · 2010
    Article
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

1 author at 1 institution in 2 countries.

Natalia A OsnaDepartment of Internal Medicine, University of Nebraska Medical Center, Liver Study Unit R151, VA Medical Center, 4101 Woolworth Ave, Omaha, NE 68105, United States. nosna@unmc.edu
University of Nebraska Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alcoholic patients have a high incidence of hepatitis C virus (HCV) infection. Alcohol consumption enhances the severity of the HCV disease course and worsens the outcome of chronic hepatitis C. The accumulation of virally infected cells in the liver is related to the HCV-induced inability of the immune system to recognize infected cells and to develop the immune responses. This review covers the effects of HCV proteins and ethanol on major histocompatibility complex (MHC) class I- and class II-restricted antigen presentation. Here, we discuss the liver which functions as an immune privilege organ; factors, which affect cleavage and loading of antigenic peptides onto MHC class I and class II in hepatocytes and dendritic cells, and the modulating effects of ethanol and HCV on antigen presentation by liver cells. Altered antigen presentation in the liver limits the ability of the immune system to clear HCV and infected cells and contributes to disease progression. HCV by itself affects dendritic cell function, switching their cytokine profile to the suppressive phenotype of interleukin-10 (IL-10) and transforming growth factor beta (TGFbeta) predominance, preventing cell maturation and allostimulation capacity. The synergistic action of ethanol with HCV results in the suppression of MHC class II-restricted antigen presentation. In addition, ethanol metabolism and HCV proteins reduce proteasome function and interferon signaling, thereby suppressing the generation of peptides for MHC class I-restricted antigen presentation. Collectively, ethanol exposure further impairs antigen presentation in HCV-infected liver cells, which may provide a partial explanation for exacerbations and the poor outcome of HCV infection in alcoholics.

Indexed as

AlcoholismAminopeptidasesAntigen-Presenting CellsEthanolHepacivirusHepatitis CHistocompatibility Antigens Class IHistocompatibility Antigens Class IIHumansInterferon-gammaLiverMajor Histocompatibility ComplexProteasome Endopeptidase ComplexT-LymphocytesAminopeptidasesEthanolHistocompatibility Antigens Class IHistocompatibility Antigens Class IIInterferon-gammaProteasome Endopeptidase Complex

Identifiers

PMID19291820
PMCPMC2658850
OpenAlexW2160633809

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.