Evidence map›Paper›PMID 26207682›Full record

ArticleRadiation research2015

A Mouse Ear Model for Bystander Studies Induced by Microbeam Irradiation.

M Buonanno, G Randers-Pehrson, L B Smilenov, N J Kleiman, E Young, B Ponnayia, D J Brenner

Abstract read
In one paragraph

Article in Radiation research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. The Radiobiology of Radiopharmaceuticals.Seminars in radiation oncology · 2021
    Review
  6. Article
  7. Article
  8. Article
  9. Focus small to find big - the microbeam story.International journal of radiation biology · 2018
    Review
  10. Review
  11. Article
  12. Article
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 3 institutions in 3 countries.

M Buonannoa  Radiological Research Accelerator Facility, Columbia University, Irvington, New York 10533;
G Randers-Pehrsona  Radiological Research Accelerator Facility, Columbia University, Irvington, New York 10533;
L B Smilenovb  Center for Radiological Research and.
N J Kleimanc  Mailman School of Public Health, Columbia University Medical Center, New York, New York 10032.
E Youngb  Center for Radiological Research and.
B Ponnayiaa  Radiological Research Accelerator Facility, Columbia University, Irvington, New York 10533;
D J Brennerb  Center for Radiological Research and.
iThemba Laboratory · ZAMedical Radiological Research Center · RUColumbia University Irving Medical Center · US

Funding

TR&D 3P41EB002033 · NIBIB · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BRENNER, DAVID JONATHAN · 2003 to 2018
$17.0M
NIBIB NIH HHS 5 P41 EB002033NIBIB NIH HHS P41 EB002033
6 · The paper itself

Abstract

Radiation-induced bystander effects have been observed in vitro and in cell and tissue culture models, however, there are few reported studies showing these effects in vivo. To our knowledge, this is the first reported study on bystander effects induced by microbeam irradiation in an intact living mammal. The mouse ear was used to investigate radiation-induced bystander effects in keratinocytes, utilizing a 3 MeV proton microbeam (LET 13.1 keV/μm) with a range in skin of about 135 μm. Using a custom-designed holder, the ear of an anesthetized C57BL/6J mouse was flattened by gentle suction and placed over the microbeam port to irradiate cells along a 35 μm wide, 6 mm long path. Immunohistochemical analysis of γ-H2AX foci formation in tissue sections revealed, compared to control tissue, proton-induced γ-H2AX foci formation in one of the two epidermal layers of the mouse ear. Strikingly, a higher number of cells than expected showed foci from direct irradiation effects. Although the proton-irradiated line was ~35 μm wide, the average width spanned by γ-H2AX-positive cells exceeded 150 μm. Cells adjacent to or in the epidermal layer opposite the γ-H2AX-positive region did not exhibit foci. These findings validate this mammalian model as a viable system for investigating radiation-induced bystander effects in an intact living organism.

Indexed as

Bystander EffectRadiationAnimalsDNA DamageDose-Response Relationship, RadiationEarGene ExpressionHistonesKeratinocytesMiceProtonsgamma-H2AX protein, mouseHistonesProtons

Identifiers

PMID26207682
PMCPMC4539936
OpenAlexW2186894066

What OpenQuestion holds

Textmetadata
LicenceTDM
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.