Evidence map›Paper›PMID 31846454›Full record

ArticlePLoS biology2019

Glioblastoma cells vampirize WNT from neurons and trigger a JNK/MMP signaling loop that enhances glioblastoma progression and neurodegeneration.

Marta Portela, Varun Venkataramani, Natasha Fahey-Lozano, Esther Seco, Maria Losada-Perez, Frank Winkler, Sergio Casas-Tintó

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

54 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
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  5. Frontiers in cell and developmental biology · 2026
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  9. VP3.15, a dual GSK-3β/PDE7 inhibitor, reduces glioblastoma tumor growth though changes in the tumor microenvironment in a PTEN wild-type context.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
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  12. Notch Signaling in Drosophila Tumor Models.Advances in experimental medicine and biology · 2025
    Review
  13. Drosophila melanogaster as a Model System for Human Glioblastoma.Advances in experimental medicine and biology · 2025
    Review
  14. Review
  15. Insects · 2024
    Review
  16. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Marta PortelaInstituto Cajal-CSIC, Madrid, Spain.ORCID 0000-0001-7898-962X
Varun VenkataramaniNeurology Clinic and National Center for Tumor Diseases, University Hospital Heidelberg, Heidelberg, Germany.
Natasha Fahey-LozanoInstituto Cajal-CSIC, Madrid, Spain.
Esther SecoInstituto Cajal-CSIC, Madrid, Spain.
Maria Losada-PerezInstituto Cajal-CSIC, Madrid, Spain.ORCID 0000-0002-6717-7762
Frank WinklerNeurology Clinic and National Center for Tumor Diseases, University Hospital Heidelberg, Heidelberg, Germany.
Sergio Casas-TintóInstituto Cajal-CSIC, Madrid, Spain.ORCID 0000-0002-9589-9981
Instituto Cajal · ESGerman Cancer Research Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastoma (GB) is the most lethal brain tumor, and Wingless (Wg)-related integration site (WNT) pathway activation in these tumors is associated with a poor prognosis. Clinically, the disease is characterized by progressive neurological deficits. However, whether these symptoms result from direct or indirect damage to neurons is still unresolved. Using Drosophila and primary xenografts as models of human GB, we describe, here, a mechanism that leads to activation of WNT signaling (Wg in Drosophila) in tumor cells. GB cells display a network of tumor microtubes (TMs) that enwrap neurons, accumulate Wg receptor Frizzled1 (Fz1), and, thereby, deplete Wg from neurons, causing neurodegeneration. We have defined this process as "vampirization." Furthermore, GB cells establish a positive feedback loop to promote their expansion, in which the Wg pathway activates cJun N-terminal kinase (JNK) in GB cells, and, in turn, JNK signaling leads to the post-transcriptional up-regulation and accumulation of matrix metalloproteinases (MMPs), which facilitate TMs' infiltration throughout the brain, TMs' network expansion, and further Wg depletion from neurons. Consequently, GB cells proliferate because of the activation of the Wg signaling target, β-catenin, and neurons degenerate because of Wg signaling extinction. Our findings reveal a molecular mechanism for TM production, infiltration, and maintenance that can explain both neuron-dependent tumor progression and also the neural decay associated with GB.

Indexed as

AnimalsAnimals, Genetically ModifiedBrain NeoplasmsCell CommunicationCell Line, TumorDisease ProgressionDrosophila melanogasterDrosophila ProteinsFemaleFrizzled ReceptorsGlioblastomaHeterograftsHumansMaleMAP Kinase Signaling SystemMatrix MetalloproteinasesDrosophila ProteinsFrizzled Receptorsfz protein, DrosophilaMatrix MetalloproteinasesWnt1 Protein

Identifiers

PMID31846454
PMCPMC6917273
OpenAlexW2995415234

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Registered trials

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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.