Evidence map›Paper›PMID 34960785›Full record

ArticleViruses2021

Hepatitis C Virus Core Protein Down-Regulates Expression of Src-Homology 2 Domain Containing Protein Tyrosine Phosphatase by Modulating Promoter DNA Methylation.

Priya Devi, Seisuke Ota, Tanel Punga, Anders Bergqvist

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 40% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. 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

4 authors at 2 institutions in 2 countries.

Priya DeviDepartment of Medical Sciences, Uppsala University, SE 751 85 Uppsala, Sweden.
Seisuke OtaDepartment of Internal Medicine, The Himeji St. Mary's Hospital, Himeji 670-0801, Japan.
Tanel PungaDepartment of Medical Biochemistry and Microbiology, Uppsala University, SE 751 23 Uppsala, Sweden.ORCID 0000-0002-0561-367X
Anders BergqvistDepartment of Medical Sciences, Uppsala University, SE 751 85 Uppsala, Sweden.ORCID 0000-0002-5789-8777
Uppsala University · SESt Mary's Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatitis C virus (HCV) is the major causative pathogen associated with liver cirrhosis and hepatocellular carcinoma. The main virion component, the core (C) protein, has been implicated in several aspects of HCV pathology including oncogenesis and immune subversion. Here we show that expression of the C protein induced specific tyrosine phosphorylation of the TCR-related signaling proteins ZAP-70, LAT and PLC-γ in the T cells. Stable expression of the C protein specifically reduced Src homology domain 2-containing protein tyrosine phosphatase 1 (SHP-1) mRNA and protein accumulation. Quantitative CpG methylation analysis revealed a distinct CpG methylation pattern at the SHP-1 gene promoter in the C protein expressing cells that included specific hypermethylation of the binding site for Sp1 transcription factor. Collectively, our results suggest that HCV may suppress immune responses and facilitate its own persistence by deregulating phosphotyrosine signaling via repressive epigenetic CpG modification at the SHP-1 promoter in the T cells.

Indexed as

DNA MethylationPromoter Regions, GeneticBinding SitesCarrier ProteinsDown-RegulationHepacivirusHepatitis CHepatitis C AntigensHumansPhospholipase C gammaPhosphorylationProtein Tyrosine PhosphatasesSignal Transductionsrc Homology DomainsViral Core ProteinsCarrier Proteinscitrate-binding transport proteinHepatitis C AntigensPhospholipase C gammaProtein Tyrosine PhosphatasesViral Core Proteinscore proteinCpGHCVmethylationphosphotyrosineSHP-1

Identifiers

PMID34960785
PMCPMC8709277
OpenAlexW4200001420

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.