Evidence map›Paper›PMID 28782644›Full record

ArticleFree radical biology & medicine2017

DMAPT inhibits NF-κB activity and increases sensitivity of prostate cancer cells to X-rays in vitro and in tumor xenografts in vivo.

Marc S Mendonca, William T Turchan, Melanie E Alpuche, Christopher N Watson, Neil C Estabrook, Helen Chin-Sinex, Jeremy B Shapiro, Imade E Imasuen-Williams, Gabriel Rangel, David P Gilley and 3 more

Open access · greenAbstract read
In one paragraph

Article in Free radical biology & medicine, 2017. 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
1.2field-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, 32 citations in OpenAlex.

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  18. Dietary Carcinogens and DNA Adducts in Prostate Cancer.Advances in experimental medicine and biology · 2019
    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

13 authors at 5 institutions in 1 country.

Marc S MendoncaDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA; Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202 USA. Electronic address: mmendonc@iupui.edu.
William T TurchanDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA; Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
Melanie E AlpucheDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
Christopher N WatsonDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA; Richard L. Roudebush, VA Medical Center, Indianapolis, IN 46202 USA.
Neil C EstabrookDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
Helen Chin-SinexDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
Jeremy B ShapiroDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
Imade E Imasuen-WilliamsDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
Gabriel RangelDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
David P GilleyDepartment of Chemistry and Applied Sciences, South Dakota School of Mines and Technology, Rapid City, SD 57701 USA.
Nazmul HudaMedical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202 USA.
Peter A CrooksCollege of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
Ronald H ShapiroDepartments of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN 46202 USA; Richard L. Roudebush, VA Medical Center, Indianapolis, IN 46202 USA.
Indiana University – Purdue University Indianapolis · USIndiana University School of MedicineRichard L. Roudebush VA Medical Center · USSouth Dakota School of Mines and Technology · USUniversity of Arkansas for Medical Sciences · US

Funding

Short-Term Training Program In Biomedical SciencesT35HL110854 · NHLBI · INDIANA UNIVERSITY INDIANAPOLIS · PI Brittney-Shea Herbert, Catherine Rufatto Sears · 2012 to 2026
$3.4M
Novel melampomagnolide B-based prodrugs for the treatment of leukemiaR01CA158275 · NCI · UNIV OF ARKANSAS FOR MED SCIS · PI CROOKS, PETER ANTHONY · 2011 to 2015
$1.6M
NCI NIH HHS R01 CA158275NHLBI NIH HHS T35 HL110854
6 · The paper itself

Abstract

Constitutive activation of the pro-survival transcription factor NF-κB has been associated with resistance to both chemotherapy and radiation therapy in many human cancers, including prostate cancer. Our lab and others have demonstrated that the natural product parthenolide can inhibit NF-κB activity and sensitize PC-3 prostate cancers cells to X-rays in vitro; however, parthenolide has poor bioavailability in vivo and therefore has little clinical utility in this regard. We show here that treatment of PC-3 and DU145 human prostate cancer cells with dimethylaminoparthenolide (DMAPT), a parthenolide derivative with increased bioavailability, inhibits constitutive and radiation-induced NF-κB binding activity and slows prostate cancer cell growth. We also show that DMAPT increases single and fractionated X-ray-induced killing of prostate cancer cells through inhibition of DNA double strand break repair and also that DMAPT-induced radiosensitization is, at least partially, dependent upon the alteration of intracellular thiol reduction-oxidation chemistry. Finally, we demonstrate that the treatment of PC-3 prostate tumor xenografts with oral DMAPT in addition to radiation therapy significantly decreases tumor growth and results in significantly smaller tumor volumes compared to xenografts treated with either DMAPT or radiation therapy alone, suggesting that DMAPT might have a potential clinical role as a radiosensitizing agent in the treatment of prostate cancer.

Indexed as

Gene Expression Regulation, NeoplasticAnimalsAntineoplastic Agentsbcl-2-Associated X ProteinBH3 Interacting Domain Death Agonist ProteinCell Line, TumorCyclin-Dependent Kinase Inhibitor p21DNA Breaks, Double-StrandedDNA RepairHumansMaleMiceMice, NudeNF-kappa BProstateProstatic NeoplasmsAntineoplastic AgentsBAX protein, humanbcl-2-Associated X ProteinBCL2 protein, humanBH3 Interacting Domain Death Agonist ProteinBID protein, humanCDKN1A protein, humanCyclin-Dependent Kinase Inhibitor p21LC-1 compoundNF-kappa BProto-Oncogene Proteins c-bcl-2Radiation-Sensitizing AgentsSesquiterpenesComet assayDMAPTDNA double-strand break repairDU145NF-κBPC-3Split-dose repairX-rays

Identifiers

PMID28782644
PMCPMC6322835
OpenAlexW2742444648

What OpenQuestion holds

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LicenceTDM
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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.