Evidence map›Paper›PMID 22276183›Full record

ArticlePloS one2012

Transforming growth factor-β1 suppresses hepatitis B virus replication by the reduction of hepatocyte nuclear factor-4α expression.

Ming-Hsiang Hong, Yu-Chi Chou, Yi-Chieh Wu, Kuen-Nan Tsai, Cheng-po Hu, King-Song Jeng, Mong-Liang Chen, Chungming Chang

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
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  15. Review
  16. Review
  17. Review
  18. Cytokine-Mediated Immunopathogenesis of Hepatitis B Virus Infections.Clinical reviews in allergy & immunology · 2016
    Review
  19. Article
  20. 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

8 authors at 6 institutions in 1 country.

Ming-Hsiang HongInstitute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan.
Yu-Chi Chou
Yi-Chieh Wu
Kuen-Nan Tsai
Cheng-po Hu
King-Song Jeng
Mong-Liang Chen
Chungming Chang
Institute of Molecular Biology, Academia Sinica · TWNational Health Research Institutes · TWChina Medical University · TWNational Tsing Hua University · TWNational Yang Ming Chiao Tung University · TWTunghai University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several studies have demonstrated that cytokine-mediated noncytopathic suppression of hepatitis B virus (HBV) replication may provide an alternative therapeutic strategy for the treatment of chronic hepatitis B infection. In our previous study, we showed that transforming growth factor-beta1 (TGF-β1) could effectively suppress HBV replication at physiological concentrations. Here, we provide more evidence that TGF-β1 specifically diminishes HBV core promoter activity, which subsequently results in a reduction in the level of viral pregenomic RNA (pgRNA), core protein (HBc), nucleocapsid, and consequently suppresses HBV replication. The hepatocyte nuclear factor 4alpha (HNF-4α) binding element(s) within the HBV core promoter region was characterized to be responsive for the inhibitory effect of TGF-β1 on HBV regulation. Furthermore, we found that TGF-β1 treatment significantly repressed HNF-4α expression at both mRNA and protein levels. We demonstrated that RNAi-mediated depletion of HNF-4α was sufficient to reduce HBc synthesis as TGF-β1 did. Prevention of HNF-4α degradation by treating with proteasome inhibitor MG132 also prevented the inhibitory effect of TGF-β1. Finally, we confirmed that HBV replication could be rescued by ectopic expression of HNF-4α in TGF-β1-treated cells. Our data clarify the mechanism by which TGF-β1 suppresses HBV replication, primarily through modulating the expression of HNF-4α gene.

Indexed as

Blotting, NorthernBlotting, WesternCell LineCysteine Proteinase InhibitorsElectrophoretic Mobility Shift AssayHepatitis B virusHepatocyte Nuclear Factor 4Hep G2 CellsHumansLeupeptinsNucleocapsidPromoter Regions, GeneticRNA, ViralTransforming Growth Factor beta1Viral Core ProteinsVirus Replicationbenzyloxycarbonylleucyl-leucyl-leucine aldehydeCysteine Proteinase InhibitorsHepatocyte Nuclear Factor 4LeupeptinsRNA, ViralTransforming Growth Factor beta1Viral Core Proteins

Identifiers

PMID22276183
PMCPMC3262823
OpenAlexW1986314857

What OpenQuestion holds

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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.