Evidence map›Paper›PMID 19948828›Full record

ArticleThe American journal of pathology2010

Pigment epithelium-derived factor inhibits lysosomal degradation of Bcl-xL and apoptosis in HepG2 cells.

Takumi Kawaguchi, Sho-Ichi Yamagishi, Minoru Itou, Koji Okuda, Shuji Sumie, Ryoko Kuromatsu, Masahiro Sakata, Mitsuhiko Abe, Eitaro Taniguchi, Hironori Koga and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

14 citing papers in PubMed, 22 citations in OpenAlex.

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  9. Review
  10. PEDF expression regulates the proangiogenic and proinflammatory phenotype of the lung endothelium.American journal of physiology. Lung cellular and molecular physiology · 2014
    Article
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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

13 authors at 4 institutions in 2 countries.

Takumi KawaguchiDepartment of Digestive Disease Information and Research, Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan. takumi@med.kurume-u.ac.jp
Sho-Ichi Yamagishi
Minoru Itou
Koji Okuda
Shuji Sumie
Ryoko Kuromatsu
Masahiro Sakata
Mitsuhiko Abe
Eitaro Taniguchi
Hironori Koga
Masaru Harada
Takato Ueno
Michio Sata
Ark Therapeutic (United States) · USKurume University · JPKurume University Medical Center · JPUniversity of Occupational and Environmental Health Japan · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pigment epithelium-derived factor (PEDF) has several biological actions on tumor cells, but its effects are cell-type dependent. The aim of this study was to examine the pathophysiological role of PEDF in hepatocellular carcinoma (HCC). PEDF expression was examined in various hepatoma cell lines and human HCC tissues, and was seen in various hepatoma cell lines including HepG2 cells. In human HCC tissues, PEDF expression was higher than in adjacent non-HCC tissues. In addition, serum PEDF levels were higher in HCC patients than in non-HCC patients, and curative treatment of HCC caused significant reductions in serum PEDF levels compared with pretreatment levels. In vitro experiments, camptothecin (CPT) was used to induce apoptosis and the effect of PEDF was investigated by knockdown of the PEDF gene in CPT-treated HepG2 cells. Knockdown of the PEDF gene enhanced CPT-induced apoptosis, simultaneously down-regulating Bcl-xL expression in HepG2 cells. Expression of apoptosis-related molecules and effects of bafilomycin A1 on CPT-induced apoptosis were also examined in PEDF gene knockdown HepG2 cells. Treatment with bafilomycin A1 suppressed CPT-induced decreases in Bcl-xL expression and increases in apoptosis in PEDF gene knockdown HepG2 cells. PEDF may, therefore, exert anti-apoptotic effects through inhibition of lysosomal degradation of Bcl-xL in CPT-treated HepG2 cells.

Indexed as

ApoptosisProtein Processing, Post-Translationalbcl-X ProteinCamptothecinCarcinoma, HepatocellularCell CycleCyclophilinsDensitometryEye ProteinsGene Expression Regulation, NeoplasticGene Knockdown TechniquesHep G2 CellsHumansLeupeptinsLiverLiver Neoplasmsbafilomycin A1bcl-X Proteinbenzyloxycarbonylleucyl-leucyl-leucine aldehydeCamptothecinCyclophilinsEye ProteinsLeupeptinsMacrolidesNerve Growth FactorsPigment Epithelium-Derived FactorRecombinant ProteinsRNA, MessengerSerpins

Identifiers

PMID19948828
PMCPMC2797879
OpenAlexW2144958456

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.