Evidence map›Paper›PMID 27557659›Full record

ArticleThe Journal of biological chemistry2016

Pigment Epithelium-derived Factor (PEDF) Blocks Wnt3a Protein-induced Autophagy in Pancreatic Intraepithelial Neoplasms.

Jingjing Gong, Glenn Belinsky, Usman Sagheer, Xuchen Zhang, Paul J Grippo, Chuhan Chung

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Proteomics in pancreatic cancer.Biomarker research · 2025
    Review
  3. Review
  4. Article
  5. Review
  6. Autophagy and the pancreas: Healthy and disease states.Frontiers in cell and developmental biology · 2024
    Review
  7. The Role of RNA MethyltransferaseFrontiers in oncology · 2022
    Review
  8. Article
  9. Article
  10. Article
  11. Superoxide Dismutases in Pancreatic Cancer.Antioxidants (Basel, Switzerland) · 2017
    Review
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

6 authors at 3 institutions in 1 country.

Jingjing GongFrom the Departments of Medicine and.
Glenn BelinskyFrom the Departments of Medicine and.
Usman Sagheerthe Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut 06516.
Xuchen Zhangthe Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut 06516 Pathology, Yale University School of Medicine, New Haven, Connecticut 06520.
Paul J Grippothe Department of Medicine, University of Illinois School of Medicine, Chicago, Illinois 60612, and.
Chuhan ChungFrom the Departments of Medicine and the Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut 06516 chuhan.chung@yale.edu.ORCID http://orcid.org/0000-0003-2803-6745
VA Connecticut Healthcare System · USUniversity of Illinois Chicago · USYale University · US

Funding

Yale Liver CenterP30DK034989 · NIDDK · YALE UNIVERSITY · PI YASUKO IWAKIRI · 1986 to 2026
$31.1M
Mechanisms of Alcohol-Induced Hepatic OsteodystrophyR21AA023607 · NIAAA · YALE UNIVERSITY · PI IWAKIRI, YASUKO · 2016 to 2017
$440k
NIAAA NIH HHS R21 AA023607NIDDK NIH HHS P30 DK034989
6 · The paper itself

Abstract

An increase in autophagy characterizes pancreatic carcinogenesis, but the signals that regulate this process are incompletely understood. Because canonical Wnt/β-catenin signaling is necessary for the transition from early to advanced pancreatic intraepithelial neoplasia (PanIN) lesions, we assessed whether Wnt ligands and endogenous inhibitors of Wnt signaling modulate autophagy. In this study, canonical Wnt3a ligand induced autophagy markers and vacuoles in murine PanIN cells. Furthermore, pigment epithelium-derived factor (PEDF), a secreted glycoprotein known for its anti-tumor properties, blocked Wnt3a-directed induction of autophagy proteins. Autophagy inhibition was complemented by reciprocal regulation of the oxidative stress enzymes, superoxide dismutase 2 (SOD2) and catalase. Transcriptional control of Sod2 expression was mediated by PEDF-induced NFκB nuclear translocation. PEDF-dependent SOD2 expression in PanIN lesions was recapitulated in a murine model of PanIN formation where PEDF was deleted. In human PanIN lesions, co-expression of PEDF and SOD2 was observed in the majority of early PanIN lesions (47/50, 94%), whereas PEDF and SOD2 immunolocalization in high-grade human PanIN-2/3 was uncommon (7/50, 14%). These results indicate that PEDF regulates autophagy through coordinate Wnt signaling blockade and NFκB activation.

Indexed as

AutophagyWnt Signaling PathwayAnimalsCatalaseCell Line, TumorEye ProteinsGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHumansMiceMice, TransgenicNeoplasm ProteinsNerve Growth FactorsPancreatic NeoplasmsPigment Epithelium-Derived FactorSerpinsCatalaseEye ProteinsNeoplasm ProteinsNerve Growth FactorsPigment Epithelium-Derived FactorSerpinsSuperoxide DismutaseSuperoxide Dismutase 2Wnt3A ProteinWNT3A protein, humanWnt3a protein, mouseautophagycatalaseNFκB (NFκB)pancreasPEDFsuperoxide dismutase (SOD)

Identifiers

PMID27557659
PMCPMC5063990
OpenAlexW2511204135

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.