Evidence map›Paper›PMID 21107289›Full record

ArticleJournal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer2011

Terameprocol (tetra-O-methyl nordihydroguaiaretic acid), an inhibitor of Sp1-mediated survivin transcription, induces radiosensitization in non-small cell lung carcinoma.

Yunguang Sun, Nicholas J Giacalone, Bo Lu

Open access · bronzeAbstract read
In one paragraph

Article in Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

18 citing papers in PubMed, 49 citations in OpenAlex.

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  12. Mithramycin A Enhances Tumor Sensitivity to Mitotic Catastrophe Resulting From DNA Damage.International journal of radiation oncology, biology, physics · 2018
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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

3 authors at 1 institution in 1 country.

Yunguang SunDepartment of Radiation Oncology, Vanderbilt University School of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee 37232-5671, USA.
Nicholas J Giacalone
Bo Lu
Vanderbilt University Medical Center · US

Funding

Radiosensitization via Targeting Cell DeathR01CA125842 · NCI · VANDERBILT UNIVERSITY · PI LU, BO · 2007 to 2010
$935k
NCI NIH HHS 1R01 CA125842-01A1NCI NIH HHS R01 CA125842
6 · The paper itself

Abstract

introductionSurvivin, an inhibitor of apoptosis protein and key regulator of mitosis, is up-regulated in a variety of cancers and is often associated with a worse prognosis. Terameprocol down-regulates the Sp1-mediated transcription of survivin and Cdk1, which is important for cell cycle progression and many other proteins. Survivin inhibition has previously been shown to result in the induction of apoptosis and radiosensitization.

methodsThis study examined the effects of terameprocol administration on survivin transcription and expression in HCC2429 and H460 lung cancer cells. We also examined the combined effects of radiation and terameprocol on apoptosis and radiosensitivity.

resultsUsing immunoblot analysis and luciferase assays, we confirmed that terameprocol decreases survivin transcription and protein expression. Ultimately, however, decreases in survivin expression failed to correlate with an increase in apoptosis. Nonetheless, clonogenic assay revealed that terameprocol induces increased radiosensitization in HCC2429 (dose enhancement ratio = 1.26, p = 0.019) and H460 (dose enhancement ratio = 1.18, p = 0.001) cells. Additionally, the data show no effect of terameprocol on cell cycle in either HCC2429 or H460 cells.

conclusionsTerameprocol significantly enhances the sensitivity of non-small cell lung carcinoma cell lines to radiation therapy, although the mechanism of action remains unclear. Further study is warranted to assess the potential of terameprocol as an agent that may enhance the therapeutic ratio of radiotherapy in lung cancer.

Indexed as

ApoptosisBlotting, WesternCarcinoma, Non-Small-Cell LungCell CycleCell ProliferationGene Expression Regulation, NeoplasticHumansInhibitor of Apoptosis ProteinsLung NeoplasmsMasoprocolRadiation-Sensitizing AgentsSp1 Transcription FactorSurvivinTumor Cells, CulturedTumor Stem Cell AssayBIRC5 protein, humanInhibitor of Apoptosis ProteinsMasoprocolRadiation-Sensitizing AgentsSp1 Transcription FactorSurvivinterameprocol

Identifiers

PMID21107289
PMCPMC3010256
OpenAlexW2074908458

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.