Zombie Facts
Case file · open since Nov 5, 2026

Wikipedia still cites a retracted paper on “PEDF”

PEDF enhances gamma-secretase activity, leading to the cleavage of the VEGF receptor 1 (VEGFR-1) transmembrane domain.[source retracted]

Wikipedia · PEDF › Signaling · 227 views in the last 30 days

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The source

Pigment epithelium-derived factor inhibits angiogenesis via regulated intracellular proteolysis of vascular endothelial growth factor receptor 1

Jun Cai, Wen G Jiang, Maria B Grant, Mike Boulton
The Journal of Biological Chemistry · published January 2006 · cited 181 times by other papers

Retracted Aug 12, 2022

Author UnresponsiveConcerns/Issues about ImageInvestigation by Journal/PublisherOriginal Data and/or Images not Provided and/or not Available

Where Wikipedia cites it

  1. PEDF214 views a month · open since Nov 5
    Zombie

Case log

  1. FoundFound on PEDF: the citation is live and nothing near it mentions the retraction.

A zombie is not an accusation. Some articles cite a retracted paper to discuss it, and some retractions don't touch the cited claim, which is why a person reads every case. How we decide · How to contest a case

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