Evidence map›Paper›PMID 31605774›Full record

ArticleCancer letters2020

The combination of BET and PARP inhibitors is synergistic in models of cholangiocarcinoma.

Samuel C Fehling, Aubrey L Miller, Patrick L Garcia, Rebecca B Vance, Karina J Yoon

Open access · greenAbstract read
In one paragraph

Article in Cancer letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 14% 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, 36 citations in OpenAlex.

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  13. Precision Medicine forCancers · 2022
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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

5 authors at 1 institution in 1 country.

Samuel C FehlingDepartment of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA.
Aubrey L MillerDepartment of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA.
Patrick L GarciaDepartment of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA.
Rebecca B VanceDepartment of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA.
Karina J YoonDepartment of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA. Electronic address: kyoon@uab.edu.
University of Alabama at Birmingham · US

Funding

Training Program in Cell, Molecular, and Developmental BiologyT32GM008111 · NIGMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI YODER, BRADLEY K. · 1985 to 2022
$5.4M
Developing novel combination therapies for pancreatic cancerR01CA208272 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI YOON, KARINA J · 2017 to 2021
$1.7M
Developing Therapy for the Treatment of CholangiocarcinomaR21CA205501 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI YOON, KARINA J · 2016 to 2017
$352k
FASEB SRC onR13DK098943 · NIDDK · FEDERATION OF AMER SOC FOR EXPER BIOLOGY · PI YODER, BRADLEY K. · 2013 to 2013
$8k
NCI NIH HHS R01 CA208272NCI NIH HHS R21 CA205501NIDDK NIH HHS R13 DK098943NIGMS NIH HHS T32 GM008111
6 · The paper itself

Abstract

Our previous finding that the BET inhibitor (BETi) JQ1 increases levels of the DNA damage marker γH2AX suggested that JQ1 might enhance the sensitivity of tumor cells to PARP inhibitors (PARPi), which are selectively toxic to cells that harbor relatively high levels of DNA damage. To address this hypothesis, we evaluated the effect of a BETi (JQ1 or I-BET762) combined with a PARPi (olaparib or veliparib) in KKU-055 and KKU-100 cholangiocarcinoma (CCA) cell lines and of JQ1 with olaparib in a xenograft model of CCA. Each combination was more effective than any of the four drugs as single agents. Combination indices ranged from 0.1 to 0.8 at the ED50 for all combinations, indicating synergy and demonstrating that synergy was not limited to a specific combination. Mechanistically, downregulation of BETi molecular targets BRD2 or BRD4 by shRNA sensitized CCA cells to BETi as single agents as well as to the combination of a BETi + a PARPi. Our data indicate that combinations of a BETi with a PARPi merit further evaluation as a promising strategy for CCA.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsAzepinesBile Duct NeoplasmsBromodomain Containing ProteinsCell Cycle ProteinsCell Line, TumorCholangiocarcinomaDrug SynergismFemaleGene Expression Regulation, NeoplasticHumansMicePhthalazinesPiperazinesPoly(ADP-ribose) Polymerase InhibitorsAzepinesBRD2 protein, humanBRD4 protein, humanBromodomain Containing ProteinsCell Cycle Proteins(+)-JQ1 compoundolaparibPhthalazinesPiperazinesPoly(ADP-ribose) Polymerase InhibitorsRNA, Small InterferingTranscription FactorsTriazolesBET inhibitorsCholangiocarcinomac-MycCombination indicesPARP inhibitorsRNAi

Identifiers

PMID31605774
PMCPMC7017643
OpenAlexW2979825940

What OpenQuestion holds

Textmetadata
LicenceTDM
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.