Evidence map›Paper›PMID 23091037›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Hepatitis B virus X protein targets the Bcl-2 protein CED-9 to induce intracellular Ca2+ increase and cell death in Caenorhabditis elegans.

Xin Geng, Brian L Harry, Qinghua Zhou, Riley Robert Skeen-Gaar, Xiao Ge, Eui Seung Lee, Shohei Mitani, Ding Xue

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

32 citing papers in PubMed, 54 citations in OpenAlex.

  1. Nonapoptotic role of EGL-1 in exopher production and neuronal health inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. Review
  4. Non-apoptotic role of EGL-1 in exopher production and neuronal health inbioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Article
  7. Review
  8. Live or death in cells: from micronutrition metabolism to cell fate.Frontiers in cell and developmental biology · 2023
    Review
  9. Article
  10. Article
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  13. Review
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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 3 institutions in 3 countries.

Xin GengDepartment of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80309, USA.
Brian L Harry
Qinghua Zhou
Riley Robert Skeen-Gaar
Xiao Ge
Eui Seung Lee
Shohei Mitani
Ding Xue
University of Colorado Boulder · USTsinghua University · CNTokyo Women's Medical University · JP

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
TRAINING IN SIGNAL TRANSDUCTION &CELL CYCLE REGULATIONT32GM008759 · NIGMS · UNIVERSITY OF COLORADO AT BOULDER · PI AHN, NATALIE G. · 2000 to 2020
$5.9M
TARGETS OF THE CELL DEATH PROTEASESR01GM059083 · NIGMS · UNIVERSITY OF COLORADO AT BOULDER · PI XUE, DING · 1999 to 2012
$3.7M
Predoctoral Training Program in Signaling and Cellular Regulation INCLUDE Down Syndrome SupplementT32GM142607 · NIGMS · UNIVERSITY OF COLORADO · PI Sabrina Leigh Spencer, Tin Tin Su · 2021 to 2026
$3.6M
Chromatin Degradation During ApoptosisR01GM079097 · NIGMS · UNIVERSITY OF COLORADO · PI XUE, DING · 2007 to 2015
$2.3M
Regulation of Cell Death ActivationR01GM088241 · NIGMS · UNIVERSITY OF COLORADO · PI XUE, DING · 2010 to 2013
$1.1M
Execution of apoptosis in C. elegans mediated by ubiquilin homologue cps-4 and prF30NS070596 · NINDS · UNIVERSITY OF COLORADO · PI HARRY, BRIAN · 2010 to 2012
$70k
NCI NIH HHS P30 CA046934NIGMS NIH HHS R01 GM059083NIGMS NIH HHS R01 GM079097NIGMS NIH HHS R01 GM088241NIGMS NIH HHS R01 GM59083NIGMS NIH HHS R01 GM79097NIGMS NIH HHS T32 GM008759NIGMS NIH HHS T32 GM142607NINDS NIH HHS F30 NS070596
6 · The paper itself

Abstract

HBx is a multifunctional hepatitis B virus (HBV) protein that is crucial for HBV infection and pathogenesis and a contributing cause of hepatocyte carcinogenesis. However, the host targets and mechanisms of action of HBx are poorly characterized. We show here that expression of HBx in Caenorhabditis elegans induces both necrotic and apoptotic cell death, mimicking an early event of liver infection by HBV. Genetic and biochemical analyses indicate that HBx interacts directly with the B-cell lymphoma 2 (Bcl-2) homolog CED-9 (cell death abnormal) through a Bcl-2 homology 3 (BH3)-like motif to trigger both cytosolic Ca(2+) increase and cell death. Importantly, Bcl-2 can substitute for CED-9 in mediating HBx-induced cell killing in C. elegans, suggesting that CED-9 and Bcl-2 are conserved cellular targets of HBx. A genetic suppressor screen of HBx-induced cell death has produced many mutations, including mutations in key regulators from both apoptosis and necrosis pathways, indicating that this screen can identify new apoptosis and necrosis genes. Our results suggest that C. elegans could serve as an animal model for identifying crucial host factors and signaling pathways of HBx and aid in development of strategies to treat HBV-induced liver disorders.

Indexed as

Amino Acid MotifsAmino Acid SequenceAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsCalciumCytosolGenes, SuppressorIntracellular SpaceMitochondriaMolecular Sequence DataMutationNecrosisPermeabilityProtein BindingProto-Oncogene Proteins c-bcl-2Caenorhabditis elegans ProteinsCalciumCed-9 protein, C eleganshepatitis B virus X proteinProto-Oncogene Proteins c-bcl-2Trans-ActivatorsViral Regulatory and Accessory Proteins

Identifiers

PMID23091037
PMCPMC3494929
OpenAlexW1992640629

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.