Evidence map›Paper›PMID 23487461›Full record

ArticleJournal of virology2013

Hepatitis C virus suppresses C9 complement synthesis and impairs membrane attack complex function.

Hangeun Kim, Keith Meyer, Adrian M Di Bisceglie, Ranjit Ray

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 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

29 citing papers in PubMed, 50 citations in OpenAlex.

  1. Trial
  2. Review
  3. Heat-KilledMicroorganisms · 2024
    Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Lipoteichoic Acid fromMicroorganisms · 2021
    Article
  11. Complement Inactivation Strategy ofInternational journal of molecular sciences · 2021
    Article
  12. Review
  13. Article
  14. Article
  15. In the Crosshairs: RNA Viruses OR Complement?Frontiers in immunology · 2020
    Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Review
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

4 authors at 1 institution in 1 country.

Hangeun KimDepartment of Internal Medicine, Saint Louis University, St Louis, Missouri, USA.
Keith Meyer
Adrian M Di Bisceglie
Ranjit Ray
Saint Louis University · US

Funding

Virology and Smallpox VaccinationsU54AI057160 · NIAID · WASHINGTON UNIVERSITY · PI RAY, RANJIT · 2003 to 2013
$80.9M
NIAID NIH HHS U54 AI057160NIAID NIH HHS U54-AI057160
6 · The paper itself

Abstract

Hepatitis C virus (HCV) proteins inhibit complement component expression, which may attenuate immunity against infection. In this study, we examined whether HCV regulates the membrane attack complex (MAC) via complement component C9. MAC is composed of C5b to C9 (C5b-9) and mediates cell lysis of invaded pathogens. Liver biopsy specimens from chronically HCV-infected patients exhibited a lower level of C9 mRNA expression than liver biopsy specimens from unrelated disease or healthy control human liver RNA. Hepatocytes infected with cell culture-grown HCV or expressing HCV core protein also displayed significant repression of C9 mRNA and protein levels. Promoter analysis suggested that the T cell factor-4 (TCF-4E) transcription factor is responsible for HCV core-mediated C9 promoter regulation. Sera from chronically HCV-infected patients displayed a lower level of C5b-9 and a reduced antimicrobial effect on model organisms compared to unrelated patient sera or sera from healthy volunteers. Together, these results for C9 regulation by HCV core protein coupled with functional impairment of the membrane attack complex underscore HCV-mediated attenuation of immune mechanisms.

Indexed as

BiopsyComplement C9Complement Membrane Attack ComplexGene Expression ProfilingHepacivirusHepatitis C, ChronicHumansImmune EvasionLiverComplement C9Complement Membrane Attack Complex

Identifiers

PMID23487461
PMCPMC3648158
OpenAlexW2144783274

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.