Evidence map›Paper›PMID 24752463›Full record

ArticleInternational journal of cancer2014

Glioma-associated microglial MMP9 expression is upregulated by TLR2 signaling and sensitive to minocycline.

Feng Hu, Min-Chi Ku, Darko Markovic, Omar Dildar a Dzaye, Seija Lehnardt, Michael Synowitz, Susanne A Wolf, Helmut Kettenmann

Open access · bronzeAbstract read
In one paragraph

Article in International journal of cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
5.2field-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

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 110 citations in OpenAlex.

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  8. Dysregulation of inflammasome activation in glioma.Cell communication and signaling : CCS · 2023
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10 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Feng HuCellular Neurosciences, Max Delbrück Center for Molecular Medicine, 13125, Berlin, Germany.
Min-Chi Ku
Darko Markovic
Omar Dildar a Dzaye
Seija Lehnardt
Michael Synowitz
Susanne A Wolf
Helmut Kettenmann
Max Delbrück Center · DECharité - Universitätsmedizin Berlin · DEHelios Hospital Berlin-Buch · DE

Funding

Non-neoplastic cell types dictate gliomagenesis andU01CA160882 · NCI · EMORY UNIVERSITY · PI HAMBARDZUMYAN, DOLORES, HOLLAND, ERIC C. · 2012 to 2016
$2.8M
NCI NIH HHS U01 CA160882NCI NIH HHS U01CA160882-01A1
6 · The paper itself

Abstract

The invasiveness of malignant gliomas is one of the major obstacles in glioma therapy and the reason for the poor survival of patients. Glioma cells infiltrate into the brain parenchyma and thereby escape surgical resection. Glioma associated microglia/macrophages support glioma infiltration into the brain parenchyma by increased expression and activation of extracellular matrix degrading proteases such as matrix metalloprotease (MMP) 2, MMP9 and membrane-type 1 MMP. In this work we demonstrate that, MMP9 is predominantly expressed by glioma associated microglia/macrophages in mouse and human glioma tissue but not by the glioma cells. Supernatant from glioma cells induced the expression of MMP9 in cultured microglial cells. Using mice deficient for different Toll-like receptors we identified Toll-like receptor 2/6 as the signaling pathway for the glioma induced upregulation of microglial MMP9. Also in an experimental mouse glioma model, Toll-like receptor 2 deficiency attenuated the upregulation of microglial MMP9. Moreover, glioma supernatant triggered an upregulation of Toll-like receptor 2 expression in microglia. Both, the upregulation of MMP9 and Toll-like receptor 2 were attenuated by the antibiotic minocycline and a p38 mitogen-activated protein kinase antagonist in vitro. Minocycline also extended the survival rate of glioma bearing mice when given to the drinking water. Thus glioma cells change the phenotype of glioma associated microglia/macrophages in a complex fashion using Toll-like receptor 2 as an important signaling pathway and minocycline further proved to be a potential candidate for adjuvant glioma therapy.

Indexed as

AnimalsAnti-Bacterial AgentsBlotting, WesternBrain NeoplasmsDisease Models, AnimalFlow CytometryFluorescent Antibody TechniqueGliomaHumansImmunoenzyme TechniquesMacrophagesMatrix Metalloproteinase 9MiceMice, Inbred C57BLMicrogliaMinocyclineAnti-Bacterial AgentsMatrix Metalloproteinase 9MinocyclineRNA, MessengerToll-Like Receptor 2gliomaglioma-associated microglia/brain macrophagesminocyclineMMP9TLR

Identifiers

PMID24752463
PMCPMC4519695
OpenAlexW2127745150

What OpenQuestion holds

Textmetadata
LicenceTDM
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.