Evidence map›Paper›PMID 25956832›Full record

ArticleInternational journal of radiation oncology, biology, physics2015

Tumor Induction in Mice After Localized Single- or Fractionated-Dose Irradiation: Differences in Tumor Histotype and Genetic Susceptibility Based on Dose Scheduling.

Elijah F Edmondson, Nancy R Hunter, Michael M Weil, Kathryn A Mason

Abstract read
In one paragraph

Article in International journal of radiation oncology, biology, physics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

4 citing papers in PubMed, 9 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

4 authors at 2 institutions in 1 country.

Elijah F EdmondsonEnvironmental and Radiological Health Sciences Department, Colorado State University, Fort Collins, Colorado. Electronic address: elijah.edmondson@colostate.edu.
Nancy R HunterDepartment of Experimental Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas.
Michael M WeilEnvironmental and Radiological Health Sciences Department, Colorado State University, Fort Collins, Colorado.
Kathryn A MasonDepartment of Experimental Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas.
The University of Texas MD Anderson Cancer Center · USColorado State University · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
X-RAY BEAM SPECTRA MEASUREMENTP01CA006294 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI ANG, K KIAN · 1985 to 2009
$11.0M
NCI NIH HHS P01 CA006294
6 · The paper itself

Abstract

purposeTo investigate differences in tumor histotype, incidence, latency, and strain susceptibility in mice exposed to single-dose or clinically relevant, fractioned-dose γ-ray radiation. METHODS AND MATERIALS: C3Hf/Kam and C57BL/6J mice were locally irradiated to the right hindlimb with either single large doses between 10 and 70 Gy or fractionated doses totaling 40 to 80 Gy delivered at 2-Gy/d fractions, 5 d/wk, for 4 to 8 weeks. The mice were closely evaluated for tumor development in the irradiated field for 800 days after irradiation, and all tumors were characterized histologically.

resultsA total of 210 tumors were induced within the radiation field in 788 mice. An overall decrease in tumor incidence was observed after fractionated irradiation (16.4%) in comparison with single-dose irradiation (36.1%). Sarcomas were the predominant postirradiation tumor observed (n=201), with carcinomas occurring less frequently (n=9). The proportion of mice developing tumors increased significantly with total dose for both single-dose and fractionated schedules, and latencies were significantly decreased in mice exposed to larger total doses. C3Hf/Kam mice were more susceptible to tumor induction than C57BL/6J mice after single-dose irradiation; however, significant differences in tumor susceptibilities after fractionated radiation were not observed. For both strains of mice, osteosarcomas and hemangiosarcomas were significantly more common after fractionated irradiation, whereas fibrosarcomas and malignant fibrous histiocytomas were significantly more common after single-dose irradiation.

conclusionsThis study investigated the tumorigenic effect of acute large doses in comparison with fractionated radiation in which both the dose and delivery schedule were similar to those used in clinical radiation therapy. Differences in tumor histotype after single-dose or fractionated radiation exposures provide novel in vivo evidence for differences in tumor susceptibility among stromal cell populations.

Indexed as

AnimalsCarcinomaCarcinoma, Squamous CellDose Fractionation, RadiationFibrosarcomaHemangiosarcomaHistiocytoma, Malignant FibrousMaleMiceMice, Inbred C3HMice, Inbred C57BLNeoplasms, Radiation-InducedRadiation DosageSarcoma

Identifiers

PMID25956832
PMCPMC4481185
OpenAlexW2045574833

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Registered trials

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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.