Evidence map›Paper›PMID 31591479›Full record

ArticleOncogene2020

A drug library screen identifies Carbenoxolone as novel FOXO inhibitor that overcomes FOXO3-mediated chemoprotection in high-stage neuroblastoma.

Stefan Salcher, Gilles Spoden, Judith Hagenbuchner, Sebastian Führer, Teresa Kaserer, Martin Tollinger, Petra Huber-Cantonati, Thomas Gruber, Daniela Schuster, Ronald Gust and 5 more

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.0field-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

29 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
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  10. Cognitive Impairment in Multiple Sclerosis.Bioengineering (Basel, Switzerland) · 2023
    Review
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  16. The FOXO family of transcription factors: key molecular players in gastric cancer.Journal of molecular medicine (Berlin, Germany) · 2022
    Review
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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

15 authors at 3 institutions in 1 country.

Stefan SalcherDepartment of Pediatrics II, Medical University Innsbruck, Innsbruck, Austria.ORCID http://orcid.org/0000-0003-2391-6954
Gilles SpodenTyrolean Cancer Research Institute, Innsbruck, Austria.
Judith HagenbuchnerDepartment of Pediatrics II, Medical University Innsbruck, Innsbruck, Austria.
Sebastian FührerInstitute of Organic Chemistry, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria.ORCID http://orcid.org/0000-0002-6523-1307
Teresa KasererInstitute of Pharmacy/Pharmaceutical Chemistry, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria.
Martin TollingerInstitute of Organic Chemistry, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria.
Petra Huber-CantonatiTyrolean Cancer Research Institute, Innsbruck, Austria.
Thomas GruberDivision for Translational Cell Genetics, Medical University Innsbruck, Innsbruck, Austria.
Daniela SchusterInstitute of Pharmacy/Pharmaceutical Chemistry, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria.
Ronald GustInstitute of Pharmacy/Pharmaceutical Chemistry, CMBI - Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria.
Heinz ZwierzinaDepartment of Internal Medicine V, Medical University Innsbruck, Innsbruck, Austria.
Thomas MüllerDepartment of Pediatrics I, Medical University Innsbruck, Innsbruck, Austria.
Ursula Kiechl-KohlendorferDepartment of Pediatrics II, Medical University Innsbruck, Innsbruck, Austria.
Michael J AusserlechnerDepartment of Pediatrics I, Medical University Innsbruck, Innsbruck, Austria. Michael.J.Ausserlechner@i-med.ac.at.
Petra ObexerDepartment of Pediatrics II, Medical University Innsbruck, Innsbruck, Austria. Petra.Obexer@i-med.ac.at.
Innsbruck Medical University · ATUniversität Innsbruck · ATTyrolean Cancer Research Institute · AT

Funding

Austrian Science Fund FWF I 3089
6 · The paper itself

Abstract

The transcription factor FOXO3 has been associated in different tumor entities with hallmarks of cancer, including metastasis, tumor angiogenesis, maintenance of tumor-initiating stem cells, and drug resistance. In neuroblastoma (NB), we recently demonstrated that nuclear FOXO3 promotes tumor angiogenesis in vivo and chemoresistance in vitro. Hence, inhibiting the transcriptional activity of FOXO3 is a promising therapeutic strategy. However, as no FOXO3 inhibitor is clinically available to date, we used a medium-throughput fluorescence polarization assay (FPA) screening in a drug-repositioning approach to identify compounds that bind to the FOXO3-DNA-binding-domain (DBD). Carbenoxolone (CBX), a glycyrrhetinic acid derivative, was identified as a potential FOXO3-inhibitory compound that binds to the FOXO3-DBD with a binding affinity of 19 µM. Specific interaction of CBX with the FOXO3-DBD was validated by fluorescence-based electrophoretic mobility shift assay (FAM-EMSA). CBX inhibits the transcriptional activity of FOXO3 target genes, as determined by chromatin immunoprecipitation (ChIP), DEPP-, and BIM promoter reporter assays, and real-time RT-PCR analyses. In high-stage NB cells with functional TP53, FOXO3 triggers the expression of SESN3, which increases chemoprotection and cell survival. Importantly, FOXO3 inhibition by CBX treatment at pharmacologically relevant concentrations efficiently repressed FOXO3-mediated SESN3 expression and clonogenic survival and sensitized high-stage NB cells to chemotherapy in a 2D and 3D culture model. Thus, CBX might be a promising novel candidate for the treatment of therapy-resistant high-stage NB and other "FOXO-resistant" cancers.

Indexed as

Drug Screening Assays, AntitumorSmall Molecule LibrariesCarbenoxoloneCell DeathForkhead Box Protein O3Gene Expression Regulation, NeoplasticHeat-Shock ProteinsHumansMolecular WeightNeoplasm StagingNeuroblastomaSestrinsTranscription, GeneticCarbenoxoloneForkhead Box Protein O3Heat-Shock ProteinsSESN3 protein, humanSestrinsSmall Molecule Libraries

Identifiers

PMID31591479
PMCPMC6989399
OpenAlexW2979318350

What OpenQuestion holds

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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.