Evidence map›Paper›PMID 17875720›Full record

ArticleCancer research2007

Identification and biological evaluation of a novel and potent small molecule radiation sensitizer via an unbiased screen of a chemical library.

Brian E Lally, Geoffrey A Geiger, Steven Kridel, Alice E Arcury-Quandt, Michael E Robbins, Nancy D Kock, Kenneth Wheeler, Prakash Peddi, Alexandros Georgakilas, Gary D Kao and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

36 citing papers in PubMed, 67 citations in OpenAlex.

  1. Review
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  5. Zebrafish models of acute leukemias: Current models and future directions.Wiley interdisciplinary reviews. Developmental biology · 2021
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  17. The study of glioma by xenotransplantation in zebrafish early life stages.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2015
    Review
  18. Article
  19. Review
  20. A high content clonogenic survival drug screen identifies mek inhibitors as potent radiation sensitizers for KRAS mutant non-small-cell lung cancer.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2014
    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

11 authors at 4 institutions in 1 country.

Brian E LallyDepartment of Radiation Oncology, Wake Forest University Health Sciences, Winston-Salem, North Carolina, USA.
Geoffrey A Geiger
Steven Kridel
Alice E Arcury-Quandt
Michael E Robbins
Nancy D Kock
Kenneth Wheeler
Prakash Peddi
Alexandros Georgakilas
Gary D Kao
Constantinos Koumenis
Molecular Oncology (United States) · USUniversity of Pennsylvania · USEast Carolina University · USWake Forest University · US

Funding

Training Program in Translational Radiation OncologyT32CA113267 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI BLACKSTOCK, ARTHUR W · 2005 to 2014
$2.6M
HDAC4 Viability: Unique Mechanisms and FunctionR01CA107956 · NCI · UNIVERSITY OF PENNSYLVANIA · PI KAO, GARY D · 2004 to 2007
$980k
NCI NIH HHS L30 CA130683NCI NIH HHS R01 CA107956NCI NIH HHS T32 CA113267NCI NIH HHS T32CA113267
6 · The paper itself

Abstract

For patients with solid tumors, the tolerance of surrounding tissues often limits the dose of radiation that can be delivered. Thus, agents that preferentially increase the cytotoxic effects of radiation toward tumor cells would significantly alter the therapeutic ratio and improve patient survival. Using a high-throughput, unbiased screening approach, we have identified 4'-bromo-3'-nitropropiophenone (NS-123) as a radiosensitizer of human glioma cells in vitro and in vivo. NS-123 radiosensitized U251 glioma cells in a dose-dependent and time-dependent manner, with dose enhancement ratios ranging from 1.3 to 2.0. HT-29 colorectal carcinoma and A549 lung adenocarcinoma cells were also radiosensitized by NS-123 in vitro, whereas NS-123 did not increase the radiation sensitivity of normal human astrocytes or developmental abnormalities or lethality of irradiated Zebrafish embryos. In a novel xenograft model of U251 cells implanted into Zebrafish embryos, NS-123 enhanced the tumor growth-inhibitory effects of ionizing radiation (IR) with no apparent effect on embryo development. Similar results were obtained using a mouse tumor xenograft model in which NS-123 sensitized U251 tumors to IR while exhibiting no overt toxicity. In vitro pretreatment with NS-123 resulted in accumulation of unrepaired IR-induced DNA strand breaks and prolonged phosphorylation of the surrogate markers of DNA damage H2AX, ataxia telangiectasia mutated protein, DNA-dependent protein kinase, and CHK2 after IR, suggesting that NS-123 inhibits a critical step in the DNA repair pathway. These results show the potential of this cell-based, high-throughput screening method to identify novel radiosensitizers and suggest that NS-123 and similar nitrophenol compounds may be effective in antiglioma modalities.

Indexed as

AdenocarcinomaAnimalsColorectal NeoplasmsCombinatorial Chemistry TechniquesCombined Modality TherapyDNA Breaks, Double-StrandedDNA RepairEmbryo, NonmammalianFemaleGliomaHT29 CellsHumansLung NeoplasmsMiceMice, NudeNeoplasms4'-bromo-3'-nitropropiophenonePropiophenonesRadiation-Sensitizing Agents

Identifiers

PMID17875720
PMCPMC3610568
OpenAlexW2117075401

What OpenQuestion holds

Textmetadata
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.