Evidence map›Paper›PMID 31510109›Full record

ArticleInternational journal of molecular sciences2019

Second Generation mTOR Inhibitors as a Double-Edged Sword in Malignant Glioma Treatment.

Dennis Heinzen, Iris Divé, Nadja I Lorenz, Anna-Luisa Luger, Joachim P Steinbach, Michael W Ronellenfitsch

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 19% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Mesenchymal Properties of Glioma Cell Lines.Bulletin of experimental biology and medicine · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Targeting RTK-PI3K-mTOR Axis in Gliomas: An Update.International journal of molecular sciences · 2021
    Review
  17. Article
  18. Article
  19. 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

6 authors at 1 institution in 1 country.

Dennis HeinzenDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany. Dennis.heinzen@gmx.de.
Iris DivéDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany. iris.dive@kgu.de.
Nadja I LorenzDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany. nadja.lorenz@googlemail.com.
Anna-Luisa LugerDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany. anna-luisa.luger@kgu.de.
Joachim P SteinbachDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany. joachim.steinbach@med.uni-frankfurt.de.
Michael W RonellenfitschDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany. m.ronellenfitsch@gmx.net.ORCID 0000-0002-1402-6290
Goethe University Frankfurt · DE

Funding

Else-Kröner-Kolleg Frankfurt -Frankfurter Forschungsförderung -Frankfurt research funding -Senckenberg Foundation -UCT Frankfurt -
6 · The paper itself

Abstract

Glioblastomas (GBs) frequently display activation of the epidermal growth factor receptor (EGFR) and mammalian target of rapamycin (mTOR). mTOR exists as part of two multiprotein complexes, mTOR complex 1 (mTORC1) and 2 (mTORC2). In GBs, mTORC1 inhibitors such as rapamycin have performed poorly in clinical trials, and in vitro protect GB cells from nutrient and oxygen deprivation. Next generation ATP-competitive mTOR inhibitors with affinity for both mTOR complexes have been developed, but data exploring their effects on GB metabolism are scarce. In this study, we compared the ATP-competitive mTORC1/2 inhibitors torin2, INK-128 and NVP-Bez235 to the allosteric mTORC1 inhibitor rapamycin under conditions that mimic the glioma microenvironment. In addition to inhibiting mTORC2 signaling, INK-128 and NVP-Bez235 more effectively blocked mTORC1 signaling and prompted a stronger cell growth inhibition, partly by inducing cell cycle arrest. However, under hypoxic and nutrient-poor conditions mTORC1/2 inhibitors displayed even stronger cytoprotective effects than rapamycin by reducing oxygen and glucose consumption. Thus, therapies that arrest proliferation and inhibit anabolic metabolism must be expected to improve energy homeostasis of tumor cells. These results mandate caution when treating physiologically or therapeutically induced hypoxic GBs with mTOR inhibitors.

Indexed as

AdenineApoptosisBenzoxazolesCell Cycle CheckpointsCell Line, TumorCell ProliferationGliomaHumansImidazolesMechanistic Target of Rapamycin Complex 1Mechanistic Target of Rapamycin Complex 2NaphthyridinesProtein Kinase InhibitorsPyrimidinesQuinolinesSignal Transduction9-(6-aminopyridin-3-yl)-1-(3-(trifluoromethyl)phenyl)benzo(h)(1,6)naphthyridin-2(1H)-oneAdenineBenzoxazolesdactolisibImidazolesMechanistic Target of Rapamycin Complex 1Mechanistic Target of Rapamycin Complex 2NaphthyridinesProtein Kinase InhibitorsPyrimidinesQuinolinessapanisertibSirolimusTOR Serine-Threonine KinasesglioblastomahypoxiamTORmTOR inhibitionstarvationtumor microenvironment

Identifiers

PMID31510109
PMCPMC6770420
OpenAlexW2973141720

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.