Evidence map›Paper›PMID 24678241›Full record

ArticleBreast cancer : basic and clinical research2014

Novel PI3K and mTOR Inhibitor NVP-BEZ235 Radiosensitizes Breast Cancer Cell Lines under Normoxic and Hypoxic Conditions.

Sebastian Kuger, Emre Cörek, Bülent Polat, Ulrike Kämmerer, Michael Flentje, Cholpon S Djuzenova

Open access · goldAbstract read
In one paragraph

Article in Breast cancer : basic and clinical research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

30 citing papers in PubMed, 49 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Sebastian KugerDepartment of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany.
Emre CörekDepartment of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany.
Bülent PolatDepartment of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany. ; Comprehensive Cancer Center Mainfranken, University of Würzburg, Würzburg, Germany.
Ulrike KämmererDepartment of Obstetrics and Gynaecology, University Hospital of Würzburg, Würzburg, Germany.
Michael FlentjeDepartment of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany.
Cholpon S DjuzenovaDepartment of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany.
Universitätsklinikum Würzburg · DEUniversity of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study, we assessed, if the novel dual phosphatidylinositol 3-kinase (PI3K)/mammalian target of rapamycin (mTOR) inhibitor NVP-BEZ235 radiosensitizes triple negative (TN) MDA-MB-231 and estrogen receptor (ER) positive MCF-7 cells to ionizing radiation under various oxygen conditions, simulating different microenvironments as occurring in the majority of breast cancers (BCs). Irradiation (IR) of BC cells cultivated in hypoxic conditions revealed increased radioresistance compared to normoxic controls. Treatment with NVP-BEZ235 completely circumvented this hypoxia-induced effects and radiosensitized normoxic, reoxygenated, and hypoxic cells to similar extents. Furthermore, NVP-BEZ235 treatment suppressed HIF-1α expression and PI3K/mTOR signaling, induced autophagy, and caused protracted DNA damage repair in both cell lines in all tested oxygen conditions. Moreover, after incubation with NVP-BEZ235, MCF-7 cells revealed depletion of phospho-AKT and considerable signs of apoptosis, which were significantly enhanced by radiation. Our findings clearly demonstrate that NVP-BEZ235 has a clinical relevant potential as a radiosensitizer in BC treatment.

Indexed as

AktapoptosisautophagyDNA repair protractionhypoxiaradiosensibility

Identifiers

PMID24678241
PMCPMC3964191
OpenAlexW2052863698

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.