Evidence map›Paper›PMID 27223435›Full record

ArticleOncotarget2016

Reactive oxygen species formation and bystander effects in gradient irradiation on human breast cancer cells.

Dongqing Zhang, Tingyang Zhou, Feng He, Yi Rong, Shin Hee Lee, Shiyong Wu, Li Zuo

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 40 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

7 authors at 5 institutions in 1 country.

Dongqing ZhangRadiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
Tingyang ZhouRadiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
Feng HeDepartment of Health and Exercise Sciences, Skidmore College, Saratoga Springs, NY 12866, USA.
Yi RongDepartment of Radiation Oncology, The James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
Shin Hee LeeEdison Biotechnology Institute, Ohio University, Athens, OH 45701, USA.
Shiyong WuEdison Biotechnology Institute, Ohio University, Athens, OH 45701, USA.
Li ZuoRadiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
The Ohio State University · USBiotechnology Institute · USOhio University · USSkidmore College · USThe Ohio State University Wexner Medical Center · US

Funding

UV INDUCED AND PERK MEDIATED SIGNALING PATHWAYSR01CA086928 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WU, SHIYONG · 2000 to 2012
$2.1M
NCI NIH HHS R01 CA086928
6 · The paper itself

Abstract

Ionizing radiation (IR) in cancer radiotherapy can induce damage to neighboring cells via non-targeted effects by irradiated cells. These so-called bystander effects remain an area of interest as it may provide enhanced efficacy in killing carcinomas with minimal radiation. It is well known that reactive oxygen species (ROS) are ubiquitous among most biological activities. However, the role of ROS in bystander effects has not been thoroughly elucidated. We hypothesized that gradient irradiation (GI) has enhanced therapeutic effects via the ROS-mediated bystander pathways as compared to uniform irradiation (UI). We evaluated ROS generation, viability, and apoptosis in breast cancer cells (MCF-7) exposed to UI (5 Gy) or GI (8-2 Gy) in radiation fields at 2, 24 and 48 h after IR. We found that extracellular ROS release induced by GI was higher than that by UI at both 24 h (p < 0.001) and 48 h (p < 0.001). More apoptosis and less viability were observed in GI when compared to UI at either 24 h or 48 h after irradiation. The mean effective doses (ED) of GI were ~130% (24 h) and ~48% (48 h) higher than that of UI, respectively. Our results suggest that GI is superior to UI regarding redox mechanisms, ED, and toxic dosage to surrounding tissues.

Indexed as

Radiation, IonizingApoptosisBreast NeoplasmsBystander EffectCell SurvivalCytochromes cFemaleHumansMCF-7 CellsReactive Oxygen SpeciesSignal TransductionCytochromes cReactive Oxygen Speciesbreast cancer cellsbystander effectsgradient irradiationMCF-7reactive oxygen species

Identifiers

PMID27223435
PMCPMC5173083
OpenAlexW2395428238

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.