Evidence map›Paper›PMID 18809223›Full record

ArticleJournal of hepatology2008

Expression of apolipoprotein C-IV is regulated by Ku antigen/peroxisome proliferator-activated receptor gamma complex and correlates with liver steatosis.

Eun Kim, Ke Li, Charmiane Lieu, Shuping Tong, Shigenobu Kawai, Takayoshi Fukutomi, Yonghong Zhou, Jack Wands, Jisu Li

Abstract read
In one paragraph

Article in Journal of hepatology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Apolipoprotein C1: Its Pleiotropic Effects in Lipid Metabolism and Beyond.International journal of molecular sciences · 2019
    Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. 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 2 institutions in 1 country.

Eun KimLiver Research Center, Rhode Island Hospital and Warren Alpert Medical School of Brown University, Providence, RI 02903, USA.
Ke Li
Charmiane Lieu
Shuping Tong
Shigenobu Kawai
Takayoshi Fukutomi
Yonghong Zhou
Jack Wands
Jisu Li
Brown University · USRhode Island Hospital · US

Funding

STUDY OF HBV AND/OR VARIANTS IN ALCOHOLICSR01AA008169 · NIAAA · RHODE ISLAND HOSPITAL (PROVIDENCE, RI) · PI WANDS, JACK R · 1989 to 2011
$3.9M
PATHOGENESIS, IMMUNODIAGNOSIS AND THERAPY OF HCCR37CA035711 · NCI · RHODE ISLAND HOSPITAL (PROVIDENCE, RI) · PI WANDS, JACK R · 2000 to 2008
$2.9M
Molecular Target(s) for Interruption of HBV InfectionR01CA109733 · NCI · RHODE ISLAND HOSPITAL · PI LI, JISU · 2005 to 2009
$1.1M
Role of Glycine Decarboxylase in hepadnaviral infectionR21CA095490 · NCI · RHODE ISLAND HOSPITAL (PROVIDENCE, RI) · PI LI, JISU · 2002 to 2003
$308k
Hepatitis C virus core protein and cell proliferationR21DK066950 · NIDDK · RHODE ISLAND HOSPITAL · PI LI, JISU · 2004 to 2005
$308k
PATHOGENESIS, IMMUNODIAGNOSIS, AND THERAPY OF HCCR01CA035711 · NCI · RHODE ISLAND HOSPITAL (PROVIDENCE, RI) · PI WANDS, JACK R · 1985 to 1999
–
NCI NIH HHS CA109733NCI NIH HHS CA35711NCI NIH HHS CA95490NCI NIH HHS R01 CA035711NCI NIH HHS R01 CA109733NCI NIH HHS R21 CA095490NCI NIH HHS R37 CA035711NIAAA NIH HHS AA08169NIAAA NIH HHS AA20666NIAAA NIH HHS R01 AA008169NIDDK NIH HHS DK066950NIDDK NIH HHS R21 DK066950
6 · The paper itself

Abstract

BACKGROUND/

aimsWe previously reported that hepatitis C virus (HCV) core protein up regulated transcription of apolipoprotein C-IV (ApoC-IV, 10.7-fold increase), a member of the apolipoprotein family implicated in liver steatosis. Here, we identified host transcription factors regulating the ApoC-IV gene expression.

methodsTranscriptional regulators were identified by DNA affinity purification and steatosis was detected by oil red O staining and triglyceride assay.

resultsWe defined a 163-bp ApoC-IV promoter as a core protein responsive element, and identified Ku antigen complex (Ku70 and Ku80) as well as nuclear receptors PPARgamma/RXRalpha as key regulators of ApoC-IV gene expression. Both Ku70 overexpression and PPARgamma agonist significantly increased ApoC-IV promoter activity; conversely, Ku70 silencing or mutation of PPARgamma binding site diminished the ApoC-IV promoter activity. Interestingly, transient transfection of ApoC-IV cDNA into a human hepatoma cell line was able to trigger moderate lipid accumulation. In agreement with this in vitro study, ApoC-IV transcript level was increased in HCV infected livers which correlated with triglyceride accumulation.

conclusionsApoC-IV overexpression may perturb lipid metabolism leading to lipid accumulation. HCV core protein may modulate ApoC-IV expression through Ku antigen and PPARgamma/RXRalpha complex.

Indexed as

Apolipoproteins CBase SequenceCell LineDNA HelicasesDNA PrimersFatty LiverHepacivirusHepatitis CHumansKu AutoantigenLipid MetabolismModels, BiologicalMolecular Sequence DataMultiprotein ComplexesPPAR gammaPromoter Regions, GeneticAPOC4 protein, humanApolipoproteins CDNA HelicasesDNA PrimersKu AutoantigenMultiprotein ComplexesPPAR gammaRecombinant ProteinsRetinoid X Receptor alphaViral Core ProteinsXRCC5 protein, human

Identifiers

PMID18809223
PMCPMC2644636
OpenAlexW2025192163

What OpenQuestion holds

Textmetadata
LicenceTDM
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.