Evidence map›Paper›PMID 21899660›Full record

ArticleCancer science2011

Reduction of nitric oxide level enhances the radiosensitivity of hypoxic non-small cell lung cancer.

Wael Saleem, Yoshiyuki Suzuki, Abdulelah Mobaraki, Yukari Yoshida, Shinei Noda, Jun-ich Saitoh, Takashi Nakano

Open access · greenAbstract read
In one paragraph

Article in Cancer science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

21 citing papers in PubMed, 35 citations in OpenAlex.

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  9. Role of metabolism in cancer cell radioresistance and radiosensitization methods.Journal of experimental & clinical cancer research : CR · 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

7 authors at 1 institution in 1 country.

Wael SaleemDepartment of Radiation Oncology, Gunma University Graduate School of Medicine, Gunma, Japan. wael@med.gunma-u.ac.jp
Yoshiyuki Suzuki
Abdulelah Mobaraki
Yukari Yoshida
Shinei Noda
Jun-ich Saitoh
Takashi Nakano
Gunma University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (E-TKI) resistance has emerged as an important clinical issue. To overcome this resistance, researchers have examined different modalities, either for use as a monotherapy or in combination with E-TKI therapy. In the present study, we investigated whether a decrease in nitric oxide (NO) levels affects the radiosensitization of non-small cell lung cancer (NSCLC) cell lines. A549 and H3255 NSCLC cells were examined. They were subjected to hypoxic conditions and monotherapy, or combined therapy using radiation and N(G) -monomethyl-l-arginine, monoacetate (LNMMA). Reductions in nitric oxide levels enhanced the radiosensitivity of both cell lines and significantly reduced the expression of both hypoxia-inducible factor-1α (HIF-1α) and EGFR in H3255 cells compared to A549 cells. Since NO is significantly associated with cell metabolism, we measured the levels of pyruvate dehydrogenase kinase-1 (PDK-1), reactive oxygen species, and oxygen and observed that the expression of PDK-1 was significantly reduced. This reduction was seen simultaneously after the silencing of HIF-1α; however, not following LNMMA treatment. The oxygen concentration was significantly increased in the treated cells, and their viability decreased in parallel. Reactive oxygen species were decreased after LNMMA and radiation treatment. Adding EGFR-TKI to cells with reduced NO levels further suppressed cell viability when combined with radiation. This study suggests that a reduction in the NO level might substantially overcome the radioresistance of mutant NSCLC cells.

Indexed as

ApoptosisCarcinoma, Non-Small-Cell LungCell HypoxiaCell Line, TumorCell ProliferationCell SurvivalErbB ReceptorsHumansHypoxia-Inducible Factor 1, alpha SubunitLung NeoplasmsNitric Oxideomega-N-MethylarginineOxygenProtein Serine-Threonine KinasesPyruvate Dehydrogenase Acetyl-Transferring KinaseRadiation ToleranceErbB ReceptorsHypoxia-Inducible Factor 1, alpha SubunitNitric Oxideomega-N-MethylarginineOxygenProtein Serine-Threonine KinasesPyruvate Dehydrogenase Acetyl-Transferring KinaseReactive Oxygen SpeciesRNA, Small Interfering

Identifiers

PMID21899660
PMCPMC11159797
OpenAlexW1965359368

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.