Evidence map›Paper›PMID 28978054›Full record

ArticleOncotarget2017

Effects of soluble CPE on glioma cell migration are associated with mTOR activation and enhanced glucose flux.

Elena I Ilina, Angela Armento, Leticia Garea Sanchez, Marina Reichlmeir, Yannick Braun, Cornelia Penski, David Capper, Felix Sahm, Lukas Jennewein, Patrick N Harter and 8 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.6field-weighted citation impact, top 36% 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

10 citing papers in PubMed, 14 citations in OpenAlex.

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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

18 authors at 4 institutions in 2 countries.

Elena I IlinaInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Angela ArmentoMolecular Neurooncology, Department of Vascular Neurology, Hertie Institute for Clinical Brain Research and Center Neurology, University of Tübingen, 72076 Tübingen, Germany.
Leticia Garea SanchezInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Marina ReichlmeirInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Yannick BraunInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Cornelia PenskiInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
David CapperGerman Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
Felix SahmGerman Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
Lukas JenneweinInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Patrick N HarterInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Sven ZukunftInstitute for Vascular Signaling, Centre for Molecular Medicine, Goethe University, 60590 Frankfurt, Germany.
Ingrid FlemingInstitute for Vascular Signaling, Centre for Molecular Medicine, Goethe University, 60590 Frankfurt, Germany.
Dorothea SchulteInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Francois Le GuerrouéInstitute of Biochemistry II, Medical School Goethe University, 60528 Frankfurt, Germany.
Christian BehrendsInstitute of Biochemistry II, Medical School Goethe University, 60528 Frankfurt, Germany.
Michael W RonellenfitschGerman Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
Ulrike NaumannMolecular Neurooncology, Department of Vascular Neurology, Hertie Institute for Clinical Brain Research and Center Neurology, University of Tübingen, 72076 Tübingen, Germany.
Michel MittelbronnInstitute of Neurology (Edinger Institute), Goethe University, 60528 Frankfurt, Germany.
Goethe University Frankfurt · DEHeidelberg University · DEHertie Institute for Clinical Brain Research · DELudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Carboxypeptidase E (CPE) has recently been described as a multifunctional protein that regulates proliferation, migration and survival in several tumor entities. In glioblastoma (GBM), the most malignant primary brain tumor, secreted CPE (sCPE) was shown to modulate tumor cell migration. In our current study, we aimed at clarifying the underlying molecular mechanisms regulating anti-migratory as well as novel metabolic effects of sCPE in GBM. Here we show that sCPE activates mTORC1 signaling in glioma cells detectable by phosphorylation of its downstream target RPS6. Additionally, sCPE diminishes glioma cell migration associated with a negative regulation of Rac1 signaling via RPS6, since both inhibition of mTOR and stimulation of Rac1 results in a reversed effect of sCPE on migration. Knockdown of CPE leads to a decrease of active RPS6 associated with increased GBM cell motility. Apart from this, we show that sCPE enhances glucose flux into the tricarboxylic acid cycle at the expense of lactate production, thereby decreasing aerobic glycolysis, which might as well contribute to a less invasive behavior of tumor cells. Our data contributes to a better understanding of the complexity of GBM cell migration and sheds new light on how tumor cell invasion and metabolic plasticity are interconnected.

Indexed as

CPEglioblastomametabolismmigrationmTOR

Identifiers

PMID28978054
PMCPMC5620194
OpenAlexW2725591743

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.