Evidence map›Paper›PMID 32205867›Full record

ArticleOncogene2020

Hypoxia-induced release, nuclear translocation, and signaling activity of a DLK1 intracellular fragment in glioma.

Elisa Stellaria Grassi, Vasiliki Pantazopoulou, Alexander Pietras

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

24 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. DLK1: a novel therapeutic target in cancer.Endocrine-related cancer · 2026
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
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  10. [Lactate-induced up-regulation of PLEKHA4 promotes proliferation and apoptosis of human glioma cells].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2023
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Small Interfering RNA for Gliomas Treatment: Overcoming Hurdles in Delivery.Frontiers in cell and developmental biology · 2022
    Review
  16. Emerging Roles of DLK1 in the Stem Cell Niche and Cancer Stemness.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2022
    Review
  17. Article
  18. Article
  19. Article
  20. 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

3 authors at 1 institution in 2 countries.

Elisa Stellaria GrassiDepartment of Laboratory Medicine, Division of Translational Cancer Research, Lund University, Lund, Sweden.
Vasiliki PantazopoulouDepartment of Laboratory Medicine, Division of Translational Cancer Research, Lund University, Lund, Sweden.ORCID http://orcid.org/0000-0002-5965-5795
Alexander PietrasDepartment of Laboratory Medicine, Division of Translational Cancer Research, Lund University, Lund, Sweden. Alexander.Pietras@med.lu.se.ORCID http://orcid.org/0000-0002-5783-9347
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastoma multiforme is characterized in part by severe hypoxia associated with tumor necrosis. The cellular response to hypoxia can influence several properties of tumor cells associated with aggressive tumor growth, including metabolic adaptations and tumor cell migration and invasion. Here, we found that Delta Like Non-Canonical Notch Ligand 1 (DLK1) expression was elevated as compared with normal brain in a genetically engineered mouse model of glioma, and that DLK1 expression increased with tumor grade in human glioma samples. DLK1 expression was highest in hypoxic and perivascular tumor areas, and we found that hypoxia induced the release and nuclear translocation of an intracellular fragment of DLK1 in murine glioma as well as in human glioma cultures. Release of the intracellular fragment was dependent on ADAM17 and Hypoxia-inducible Factor 1alpha and 2alpha (HIF-1alpha/HIF-2alpha), as ADAM17 inhibitors and HIF1A/HIF2A siRNA blocked DLK1 cleavage. Expression of a cleavable form of DLK1 amplified several hypoxia-induced traits of glioma cells such as colony formation, stem cell marker gene expression, a PI3K-pathway-mediated metabolic shift, and enhanced invasiveness. Effects of DLK1 were dependent on DLK1-cleavage by ADAM17, as expression of non-cleavable DLK1 could not replicate the DLK1-induced hypoxic phenotype. Finally, forced expression of DLK1 resulted in more invasive tumor growth in a PDGFB-induced glioma mouse model without affecting overall survival. Together, our findings suggest a previously undescribed role for DLK1 as an intracellular signaling molecule.

Indexed as

Signal TransductionActive Transport, Cell NucleusAnimalsCalcium-Binding ProteinsCell HypoxiaCell NucleusGene Expression Regulation, NeoplasticGliomaMiceMice, KnockoutNeoplasm ProteinsCalcium-Binding ProteinsDlk1 protein, mouseNeoplasm Proteins

Identifiers

PMID32205867
PMCPMC7220882
OpenAlexW3012736398

What OpenQuestion holds

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LicenceCC BY
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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.