Evidence map›Paper›PMID 32997991›Full record

ArticleCell reports2020

Divergent Roles of PI3K Isoforms in PTEN-Deficient Glioblastomas.

Shaozhen Xie, Jing Ni, J Ricardo McFaline-Figueroa, Yanzhi Wang, Roderick T Bronson, Keith L Ligon, Patrick Y Wen, Thomas M Roberts, Jean J Zhao

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Cell reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

22 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
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  11. AKT kinases as therapeutic targets.Journal of experimental & clinical cancer research : CR · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Shaozhen XieDepartment of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA.
Jing NiDepartment of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA.
J Ricardo McFaline-FigueroaDepartment of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Center for Neuro-Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Departments of Medical Oncology and Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.
Yanzhi WangDepartment of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.
Roderick T BronsonDana-Farber/Harvard Cancer Center Rodent Histopathology Core, Boston, MA 02215, USA.
Keith L LigonCenter for Neuro-Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Departments of Medical Oncology and Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.
Patrick Y WenCenter for Neuro-Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Departments of Medical Oncology and Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.
Thomas M RobertsDepartment of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA. Electronic address: thomas_roberts@dfci.harvard.edu.
Jean J ZhaoDepartment of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA. Electronic address: jean_zhao@dfci.harvard.edu.
Center for Neuro-Oncology · USHarvard University · USBroad Institute · USDana-Farber Cancer Institute · USDana-Farber/Harvard Cancer Center · US

Funding

Targeting the Vasular SystemP50CA165962 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI Tracy T Batchelor · 2013 to 2026
$33.5M
Tissue and Pathology CoreP50CA168504 · NCI · DANA-FARBER CANCER INST · PI LEIF W ELLISEN, NANCY U LIN · 2013 to 2026
$30.1M
Training Program in Nervous System TumorsK12CA090354 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI PLOTKIN, SCOTT R · 2001 to 2025
$16.3M
Integrating targeted therapy and immunotherapy to break through cancerR35CA210057 · NCI · DANA-FARBER CANCER INST · PI Jean Zhao · 2016 to 2026
$10.8M
Therapeutic Opportunities for Pediatric AstrocytomaP01CA142536 · NCI · DANA-FARBER CANCER INST · PI SEGAL, ROSALIND A. · 2011 to 2015
$7.9M
Maximizing the Effectiveness of PI3K Inhibitors in the Treatment of Pten null CancersR35CA231945 · NCI · DANA-FARBER CANCER INST · PI ROBERTS, THOMAS M · 2019 to 2025
$7.1M
Cancer Chemical Biology and Metabolism Training ProgramT32CA236754 · NCI · DANA-FARBER CANCER INST · PI Nika N Danial, THOMAS M ROBERTS · 2019 to 2026
$2.6M
Molecular mechanisms and therapeutic targeting of PI3K-p110beta/PTEN signaling in breast cancer and cancer immunityR01CA233810 · NCI · DANA-FARBER CANCER INST · PI ROBERTS, THOMAS M · 2019 to 2019
$498k
NCI NIH HHS K12 CA090354NCI NIH HHS P01 CA142536NCI NIH HHS P50 CA165962NCI NIH HHS P50 CA168504NCI NIH HHS R01 CA233810NCI NIH HHS R35 CA210057NCI NIH HHS R35 CA231945NCI NIH HHS T32 CA236754
6 · The paper itself

Abstract

Loss of PTEN, the negative regulator of PI3K activity, is frequent in glioblastomas (GBMs). However, the role of the two major PI3K isoforms, p110α and p110β, in PTEN-deficient gliomagenesis remains unknown. We show that PTEN-deficient GBM largely depends on p110α for proliferation and p110β for migration. Genetic ablation of either isoform delays tumor progression in mice, but only ablating both isoforms completely blocks GBM driven by the concurrent ablation of Pten and p53. BKM120 (buparlisib) treatment only modestly prolongs survival in mice bearing intracranial Pten/p53 null tumors due to partial pathway inhibition. BKM120 extends the survival of mice bearing intracranial tumors in which p110β, but not p110α, has been genetically ablated in the Pten/p53 null glioma, indicating that BKM120 fails to inhibit p110β effectively. Our study suggests that the failure of PI3K inhibitors in GBM may be due to insufficient inhibition of p110β and indicates a need to develop brain-penetrant p110α/β inhibitors.

Indexed as

AnimalsGlioblastomaHumansMaleMicePhosphatidylinositol 3-KinasesProtein IsoformsPTEN PhosphohydrolasePhosphatidylinositol 3-KinasesProtein IsoformsPTEN PhosphohydrolasePTEN protein, humanBKM120BYL719GEMMglioblastomaisoform-selective inhibitormigrationPDXPI3K isoformPTENPTEN-deficient

Identifiers

PMID32997991
PMCPMC7571617
OpenAlexW3089460745

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.