Evidence map›Paper›PMID 33694259›Full record

ArticleBrain pathology (Zurich, Switzerland)2021

Fibrinogen in the glioblastoma microenvironment contributes to the invasiveness of brain tumor-initiating cells.

Lauren Dzikowski, Reza Mirzaei, Susobhan Sarkar, Mehul Kumar, Pinaki Bose, Anita Bellail, Chunhai Hao, V Wee Yong

Open access · goldAbstract read
In one paragraph

Article in Brain pathology (Zurich, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  4. Article
  5. Article
  6. Article
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  8. Review
  9. Article
  10. Article
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  12. Fibrinogen and tumors.Frontiers in oncology · 2024
    Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Integrins Bidirectionally Regulate the Efficacy of Inhibitory Synaptic Transmission and Control GABAergic Plasticity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  18. Cancers · 2022
    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

8 authors at 2 institutions in 2 countries.

Lauren DzikowskiDepartment of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.
Reza MirzaeiDepartment of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.
Susobhan SarkarDepartment of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.
Mehul KumarDepartment of Biochemistry, University of Calgary, Calgary, AB, Canada.
Pinaki BoseDepartment of Biochemistry, University of Calgary, Calgary, AB, Canada.
Anita BellailDepartment of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.
Chunhai HaoDepartment of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.
V Wee YongDepartment of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.ORCID 0000-0002-2600-3563
University of Calgary · CAIndiana University School of Medicine

Funding

CIHR
6 · The paper itself

Abstract

Glioblastomas (GBMs) are highly aggressive, recurrent, and lethal brain tumors that are maintained via brain tumor-initiating cells (BTICs). The aggressiveness of BTICs may be dependent on the extracellular matrix (ECM) molecules that are highly enriched within the GBM microenvironment. Here, we investigated the expression of ECM molecules in GBM patients by mining the transcriptomic databases and also staining human GBM specimens. RNA levels for fibronectin, brevican, versican, heparan sulfate proteoglycan 2 (HSPG2), and several laminins were high in GBMs compared to normal brain, and this was corroborated by immunohistochemistry. While fibrinogen transcript was at normal level in GBM, its protein immunoreactivity was prominent within GBM tissues. These ECM molecules in tumor specimens were in proximity to, and surrounding BTICs. In culture, fibronectin and pan-laminin induced the adhesion of BTICs onto the plastic substratum. However, fibrinogen increased the size of the BTIC spheres by facilitating the adhesive property, motility, and invasiveness of BTICs. These features of elevated invasiveness were corroborated in resected GBM specimens by the close proximity of fibrinogen with matrix metalloproteinase (MMP)-2 and-9, which are proteases implicated in metastasis. Moreover, the effect of fibrinogen-induced invasiveness was attenuated in BTICs where MMP-2 and -9 have been inhibited with siRNAs or pharmacological inhibitors. Our results implicate fibrinogen in GBM as a mediator of the invasive properties of BTICs, and as a target for therapy to reduce BTIC tumorigenecity.

Indexed as

BrainBrain NeoplasmsFibrinogenGene Expression Regulation, NeoplasticGlioblastomaHumansNeoplastic Stem CellsTumor MicroenvironmentFibrinogenECMextracellular matrixfibrinogenglioblastomaglioma stem cellinvasiveness

Identifiers

PMID33694259
PMCPMC8412081
OpenAlexW3135371116

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.