Evidence map›Paper›PMID 11821950›Full record

ArticleOncogene2002

The hepatitis B virus X protein abrogates Bcl-2-mediated protection against Fas apoptosis in the liver.

Olivier Terradillos, Alix de La Coste, Teresa Pollicino, Christine Neuveut, Delphine Sitterlin, Hervé Lecoeur, Marie-Lise Gougeon, Axel Kahn, Marie-Annick Buendia

Abstract read
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In one paragraph

Article in Oncogene, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 84 citations in OpenAlex.

  1. Review
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  7. Review
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  9. Review
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  15. Article
  16. Article
  17. Article
  18. Chronic hepatitis B in hepatocarcinogenesis.Postgraduate medical journal · 2006
    Review
  19. Article
  20. Apoptosis and its pathway in X gene-transfected HepG2 cells.World journal of gastroenterology · 2005
    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

9 authors at 4 institutions in 4 countries.

Olivier TerradillosUnité de Recombinaison et Expression Génétique, Inserm U163, Institut Pasteur, Paris, France.
Alix de La Coste
Teresa Pollicino
Christine Neuveut
Delphine Sitterlin
Hervé Lecoeur
Marie-Lise Gougeon
Axel Kahn
Marie-Annick Buendia
Inserm · FRInstitut Pasteur · FRDélégation Paris 5 · FREuropean Molecular Biology Organization · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The role of the hepatitis B virus protein HBx in liver cell proliferation and apoptosis remains controversial. Using a transgenic mouse model, we have recently shown that HBx stimulates the apoptotic turnover of hepatocytes, independently of p53. In this paper, we tested whether the proapoptotic function of HBx can interfere with Bcl-2 during hepatic apoptosis in vivo. HBx transgenic mice were crossed with PK-hBcl-2 mice that are protected against Fas killing by constitutive overexpression of Bcl-2 in hepatocytes. In a lethal challenge with Fas antibodies, HBx expressed at low levels restored sensitivity to Fas-mediated apoptosis and fulminant hepatic failure in mice overexpressing Bcl-2. Furthermore, cytochrome c release from mitochondria and caspase 3 activation were restored to normal levels in HBx/Bcl-2 mice during transduction of the Fas signal. Thus, the proapoptotic activity of HBx overcomes or bypasses the inhibitory effect of Bcl-2 against Fas cytotoxicity. This effect was not apparently mediated through downregulation of the PK-hBcl-2 transgene or via delocalization of the Bcl-2 protein, and a direct interaction of HBx with Bcl-2, Bcl-X(L) or Bax could not be evidenced in yeast two-hybrid assays. We further show that apoptosis induced by ectopic expression of HBx is associated with mitochondrial membrane alterations and caspase 3 activation. Our data indicate that the dominant function of HBx upon Bcl-2-regulated control of apoptosis might play an important role in the pathogenesis of chronic hepatitis B.

Indexed as

ApoptosisAnimalsBlotting, WesternCaspase 3CaspasesCytochrome c Groupfas ReceptorFlow CytometryGene Expression ProfilingGene Expression RegulationHeLa CellsHepatocytesHumansLiverMiceMice, TransgenicCASP3 protein, humanCasp3 protein, mouseCaspase 3CaspasesCytochrome c Groupfas Receptorhepatitis B virus X proteinProto-Oncogene Proteins c-bcl-2Trans-ActivatorsViral Regulatory and Accessory Proteins

Identifiers

PMID11821950
OpenAlexW2024507347

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.