Evidence map›Paper›PMID 20940411›Full record

ArticleCancer research2010

Prostate cancer radiosensitization through poly(ADP-Ribose) polymerase-1 hyperactivation.

Ying Dong, Erik A Bey, Long-Shan Li, Wareef Kabbani, Jingsheng Yan, Xian-Jin Xie, Jer-Tsong Hsieh, Jinming Gao, David A Boothman

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

52 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
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  6. β-lapachone regulates mammalian inositol pyrophosphate levels in an NQO1- and oxygen-dependent manner.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  20. NQO1-dependent, Tumor-selective Radiosensitization of Non-small Cell Lung Cancers.Clinical cancer research : an official journal of the American Association for Cancer Research · 2019
    Article
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

9 authors at 1 institution in 1 country.

Ying DongDepartments of Pharmacology, Radiation Oncology, Pathology, Biostatistics and Clinical Sciences, and Urology, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390-8807, USA.
Erik A Bey
Long-Shan Li
Wareef Kabbani
Jingsheng Yan
Xian-Jin Xie
Jer-Tsong Hsieh
Jinming Gao
David A Boothman
The University of Texas Southwestern Medical Center · US

Funding

UT Southwestern Medical Center Simmons Comprehensive Cancer CenterP30CA142543 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI Sandi Leigh Pruitt · 2010 to 2026
$53.7M
Use of Beta-Lapachone for Lung Cancer ChemotherapyR01CA102792 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI BOOTHMAN, DAVID A · 2003 to 2017
$5.3M
NCI NIH HHS 2 R01 CA102792-08NCI NIH HHS P30 CA142543NCI NIH HHS R01 CA102792
6 · The paper itself

Abstract

The clinical experimental agent, β-lapachone (β-lap; Arq 501), can act as a potent radiosensitizer in vitro through an unknown mechanism. In this study, we analyzed the mechanism to determine whether β-lap may warrant clinical evaluation as a radiosensitizer. β-Lap killed prostate cancer cells by NAD(P)H:quinone oxidoreductase 1 (NQO1) metabolic bioactivation, triggering a massive induction of reactive oxygen species, irreversible DNA single-strand breaks (SSB), poly(ADP-ribose) polymerase-1 (PARP-1) hyperactivation, NAD(+)/ATP depletion, and μ-calpain-induced programmed necrosis. In combination with ionizing radiation (IR), β-lap radiosensitized NQO1(+) prostate cancer cells under conditions where nontoxic doses of either agent alone achieved threshold levels of SSBs required for hyperactivation of PARP-1. Combination therapy significantly elevated SSB level, γ-H2AX foci formation, and poly(ADP-ribosylation) of PARP-1, which were associated with ATP loss and induction of μ-calpain-induced programmed cell death. Radiosensitization by β-lap was blocked by the NQO1 inhibitor dicoumarol or the PARP-1 inhibitor DPQ. In a mouse xenograft model of prostate cancer, β-lap synergized with IR to promote antitumor efficacy. NQO1 levels were elevated in ∼60% of human prostate tumors evaluated relative to adjacent normal tissue, where β-lap might be efficacious alone or in combination with radiation. Our findings offer a rationale for the clinical utilization of β-lap (Arq 501) as a radiosensitizer in prostate cancers that overexpress NQO1, offering a potentially synergistic targeting strategy to exploit PARP-1 hyperactivation.

Indexed as

AnimalsApoptosisCell DeathColony-Forming Units AssayComet AssayDicumarolDNA DamageDNA, NeoplasmEnzyme ActivationEnzyme InhibitorsGlutathioneHumansIn Situ Nick-End LabelingMaleMiceMice, Nudebeta-lapachoneDicumarolDNA, NeoplasmEnzyme InhibitorsGlutathioneNaphthoquinonesPARP1 protein, humanPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) PolymerasesRadiation-Sensitizing Agents

Identifiers

PMID20940411
PMCPMC2955807
OpenAlexW2150875293

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.