Evidence map›Paper›PMID 25051356›Full record

ArticlePloS one2014

Quantitative ultrasound characterization of tumor cell death: ultrasound-stimulated microbubbles for radiation enhancement.

Hyunjung Christina Kim, Azza Al-Mahrouki, Alborz Gorjizadeh, Ali Sadeghi-Naini, Raffi Karshafian, Gregory J Czarnota

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed, 39 citations in OpenAlex.

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  15. Breast Cancer Brain Metastasis Response to Radiation After Microbubble Oxygen Delivery in a Murine Model.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2019
    Article
  16. Sensitization of Hypoxic Tumors to Radiation Therapy Using Ultrasound-Sensitive Oxygen Microbubbles.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

6 authors at 4 institutions in 1 country.

Hyunjung Christina KimDepartment of Physical Sciences, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Azza Al-MahroukiDepartment of Physical Sciences, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Alborz GorjizadehDepartment of Medical Biophysics, Faculty of Medicine, University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Ali Sadeghi-NainiDepartment of Physical Sciences, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
Raffi KarshafianDepartment of Physics, Ryerson University, Toronto, Ontario, Canada.
Gregory J CzarnotaDepartment of Physical Sciences, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Physics, Ryerson University, Toronto, Ontario, Canada.
Sunnybrook Health Science Centre · CAHealth Sciences Centre · CAToronto Metropolitan University · CAUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to assess the efficacy of quantitative ultrasound imaging in characterizing cancer cell death caused by enhanced radiation treatments. This investigation focused on developing this ultrasound modality as an imaging-based non-invasive method that can be used to monitor therapeutic ultrasound and radiation effects. High-frequency (25 MHz) ultrasound was used to image tumor responses caused by ultrasound-stimulated microbubbles in combination with radiation. Human prostate xenografts grown in severe combined immunodeficiency (SCID) mice were treated using 8, 80, or 1000 µL/kg of microbubbles stimulated with ultrasound at 250, 570, or 750 kPa, and exposed to 0, 2, or 8 Gy of radiation. Tumors were imaged prior to treatment and 24 hours after treatment. Spectral analysis of images acquired from treated tumors revealed overall increases in ultrasound backscatter intensity and the spectral intercept parameter. The increase in backscatter intensity compared to the control ranged from 1.9±1.6 dB for the clinical imaging dose of microbubbles (8 µL/kg, 250 kPa, 2 Gy) to 7.0±4.1 dB for the most extreme treatment condition (1000 µL/kg, 750 kPa, 8 Gy). In parallel, in situ end-labelling (ISEL) staining, ceramide, and cyclophilin A staining demonstrated increases in cell death due to DNA fragmentation, ceramide-mediated apoptosis, and release of cyclophilin A as a result of cell membrane permeabilization, respectively. Quantitative ultrasound results indicated changes that paralleled increases in cell death observed from histology analyses supporting its use for non-invasive monitoring of cancer treatment outcomes.

Indexed as

ApoptosisAnimalsCell Line, TumorCeramidesDNA FragmentationHumansMaleMice, SCIDMicrobubblesProstatic NeoplasmsRadiation-Sensitizing AgentsRadiation ToleranceSoundUltrasonographyXenograft Model Antitumor AssaysCeramidesRadiation-Sensitizing Agents

Identifiers

PMID25051356
PMCPMC4106764
OpenAlexW2082048741

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.