Evidence map›Paper›PMID 20861085›Full record

ArticleNeuro-oncology2010

Dual blocking of mTor and PI3K elicits a prodifferentiation effect on glioblastoma stem-like cells.

Jun Sunayama, Atsushi Sato, Ken-ichiro Matsuda, Ken Tachibana, Kaori Suzuki, Yoshitaka Narita, Soichiro Shibui, Kaori Sakurada, Takamasa Kayama, Arata Tomiyama and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

55 citing papers in PubMed, 99 citations in OpenAlex.

  1. Rapamycin Targets Cancer Stem Cells to Decrease Cisplatin Resistance in a Head and Neck Cancer Mouse Xenograft Model.Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Targeting RTK-PI3K-mTOR Axis in Gliomas: An Update.International journal of molecular sciences · 2021
    Review
  15. Frontiers in immunology · 2021
    Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article
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

11 authors at 3 institutions in 1 country.

Jun SunayamaDepartment of Molecular Cancer Science, Yamagata University School of Medicine, Yamagata, Japan.
Atsushi Sato
Ken-ichiro Matsuda
Ken Tachibana
Kaori Suzuki
Yoshitaka Narita
Soichiro Shibui
Kaori Sakurada
Takamasa Kayama
Arata Tomiyama
Chifumi Kitanaka
Japan Society for the Promotion of Science · JPTokyo National Hospital · JPYamagata University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastoma, the most intractable cerebral tumor, is highly lethal. Recent studies suggest that cancer stem-like cells (CSLCs) have the capacity to repopulate tumors and mediate radio- and chemoresistance, implying that future therapies may need to turn from the elimination of rapidly dividing, but differentiated, tumor cells to specifically targeting the minority of tumor cells that repopulate the tumor. However, the mechanism by which glioblastoma CSLCs maintain their immature stem-like state or, alternatively, become committed to differentiation is poorly understood. Here, we show that the inactivation of mammalian target of rapamycin (mTor) by the mTor inhibitor rapamycin or knockdown of mTor reduced sphere formation and the expression of neural stem cell (NSC)/progenitor markers in CSLCs of the A172 glioblastoma cell line. Interestingly, combination treatment with rapamycin and LY294002, a phosphatidylinositol 3-kinase (PI3K) inhibitor, not only reduced the expression of NSC/progenitor markers more efficiently than single-agent treatment, but also increased the expression of βIII-tubulin, a neuronal differentiation marker. Consistent with these results, a dual PI3K/mTor inhibitor, NVP-BEZ235, elicited a prodifferentiation effect on A172 CSLCs. Moreover, A172 CSLCs, which were induced to undergo differentiation by pretreatment with NVP-BEZ235, exhibited a significant decrease in their tumorigenicity when transplanted either subcutaneously or intracranially. Importantly, similar results were obtained when patient-derived glioblastoma CSLCs were used. These findings suggest that the PI3K/mTor signaling pathway is critical for the maintenance of glioblastoma CSLC properties, and targeting both mTor and PI3K of CSLCs may be an effective therapeutic strategy in glioblastoma.

Indexed as

Phosphoinositide-3 Kinase InhibitorsAnimalsBlotting, WesternCell DifferentiationCell Line, TumorCell ProliferationChromonesDrug Therapy, CombinationEnzyme InhibitorsGlioblastomaHumansImidazolesImmunosuppressive AgentsMaleMiceMice, Inbred BALB C2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneChromonesdactolisibEnzyme InhibitorsImidazolesImmunosuppressive AgentsMorpholinesMTOR protein, humanPhosphatidylinositol 3-KinasePhosphoinositide-3 Kinase InhibitorsProto-Oncogene Proteins c-aktQuinolinesSirolimusTOR Serine-Threonine Kinases

Identifiers

PMID20861085
PMCPMC3018946
OpenAlexW2150085213

What OpenQuestion holds

Textmetadata
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.