Evidence map›Paper›PMID 25477201›Full record

ArticleJournal of biomolecular screening2015

Small Molecule, NSC95397, Inhibits the CtBP1-Protein Partner Interaction and CtBP1-Mediated Transcriptional Repression.

Melanie A Blevins, Jennifer Kouznetsova, Aaron B Krueger, Rebecca King, Lesley Mathews Griner, Xin Hu, Noel Southall, Juan J Marugan, Qinghong Zhang, Marc Ferrer and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of biomolecular screening, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

27 citing papers in PubMed, 77 citations in OpenAlex.

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  15. The small molecule PSSM0332 disassociates the CRL4AInternational journal of biological sciences · 2020
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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

11 authors at 3 institutions in 1 country.

Melanie A BlevinsDepartment of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA.
Jennifer KouznetsovaDivision of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, MD, USA.
Aaron B KruegerDepartment of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA.
Rebecca KingDivision of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, MD, USA.
Lesley Mathews GrinerDivision of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, MD, USA.
Xin HuDivision of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, MD, USA.
Noel SouthallDivision of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, MD, USA.
Juan J MaruganDivision of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, MD, USA.
Qinghong ZhangDepartment of Dermatology, University of Colorado School of Medicine, Aurora, CO, USA.
Marc FerrerDivision of Preclinical Innovation, National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, MD, USA.
Rui ZhaoDepartment of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA qinghong.zhang@ucdenver.edu marc.ferrer@nih.gov rui.zhao@ucdenver.edu.
National Center for Advancing Translational Sciences · USUniversity of Colorado Denver · USNational Institutes of Health · US

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR025780 · NCRR · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2008 to 2011
$61.3M
Colorado Clinical and Translational Sciences InstituteUL1TR001082 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2013 to 2017
$48.0M
Training in Translational Research of Lung, Head and Neck CancerT32CA174648 · NCI · UNIVERSITY OF COLORADO DENVER · PI KARAM, SANA D · 2013 to 2022
$4.2M
Identify Inhibitors of the Transcriptional Co-Repressor CtBP Using HTS for CancerR03DA033982 · NIDA · UNIVERSITY OF COLORADO DENVER · PI ZHANG, QINGHONG, ZHAO, RUI · 2012 to 2013
$76k
NCATS NIH HHS UL1 TR001082NCI NIH HHS P30 CA046934NCI NIH HHS T32 CA174648NCRR NIH HHS UL1 RR025780NIDA NIH HHS R03 DA033982NIDA NIH HHS R03DA033982NIMH NIH HHS U54 MH084681
6 · The paper itself

Abstract

Carboxyl-terminal binding protein (CtBP) is a transcriptional corepressor that suppresses multiple proapoptotic and epithelial genes. CtBP is overexpressed in many human cancers, and its overexpression increases stem cell-like features, epithelial-mesenchymal transition, and cancer cell survival. Knockdown of CtBP also increases apoptosis independent of p53 in cell culture. Therefore, targeting CtBP with small molecules that disrupt its interaction with transcription factor partners may be an effective cancer therapy. To elicit its corepressing effect, CtBP binds to a conserved peptide motif in each transcription factor partner. We developed an AlphaScreen high-throughput screening assay to monitor the interaction between CtBP and E1A (which mimics the interaction between CtBP and its transcriptional partners). We screened the LOPAC library of 1280 bioactive compounds and identified NSC95397, which inhibits the CtBP-E1A interaction (IC50 = 2.9 µM). The inhibitory activity of NSC95397 was confirmed using two secondary assays and a counterscreen. NSC95397 also behaved as a weak substrate of CtBP dehydrogenase activity and did not inhibit another dehydrogenase, lactase dehydrogenase. Finally, NSC95397 was able to disrupt CtBP-mediated transcriptional repression of a target gene. These studies present a new possibility for the development of a therapeutic agent targeting tumors through disrupting the CtBP transcriptional complex.

Indexed as

High-Throughput Screening AssaysAlcohol OxidoreductasesCarrier ProteinsDNA-Binding ProteinsDose-Response Relationship, DrugDrug DiscoveryGene Expression RegulationHumansNaphthoquinonesProtein BindingReproducibility of ResultsSmall Molecule LibrariesSubstrate SpecificityTranscription, Genetic2,3-bis(2-hydroxyethylsulfanyl)-(1,4)naphthoquinoneAlcohol OxidoreductasesCarrier ProteinsC-terminal binding proteinDNA-Binding ProteinsNaphthoquinonesSmall Molecule LibrariesAlphaScreenCtBP1E1ANSC95397protein-protein interaction

Identifiers

PMID25477201
PMCPMC4486263
OpenAlexW2013535625

What OpenQuestion holds

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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.