Evidence map›Paper›PMID 29706499›Full record

ArticleStem cell reports2018

INK4a/ARF Expression Impairs Neurogenesis in the Brain of Irradiated Mice.

Oanh Le, Lina Palacio, Gilbert Bernier, Ines Batinic-Haberle, Gilles Hickson, Christian Beauséjour

Open access · goldAbstract read
In one paragraph

Article in Stem cell reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Effects of radiotherapy on the hippocampus and hippocampal neurogenesis: a systematic review of preclinical studies.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2025
    Pooled it
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  10. Emerging Roles for theBiomolecules · 2020
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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 3 institutions in 2 countries.

Oanh LeCentre de Recherche du CHU Ste-Justine, 3175 Côte Sainte-Catherine, Montréal, Québec H3T 1C5, Canada.
Lina PalacioCentre de Recherche du CHU Ste-Justine, 3175 Côte Sainte-Catherine, Montréal, Québec H3T 1C5, Canada; Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada.
Gilbert BernierCentre de Recherche de l'Hôpital Maisonneuve Rosemont and Department of Ophtalmology, Université de Montréal, Montréal, Québec, Canada.
Ines Batinic-HaberleDepartment of Radiation Oncology-Cancer Biology, Duke University, Duke Cancer Center, Medicine Circle, Durham, NC 27710, USA.
Gilles HicksonCentre de Recherche du CHU Ste-Justine, 3175 Côte Sainte-Catherine, Montréal, Québec H3T 1C5, Canada; Department of Pathology and Cell Biology, Université de Montréal, Montréal, Québec, Canada.
Christian BeauséjourCentre de Recherche du CHU Ste-Justine, 3175 Côte Sainte-Catherine, Montréal, Québec H3T 1C5, Canada; Department of Pharmacology and Physiology, Université de Montréal, Montréal, Québec, Canada. Electronic address: c.beausejour@umontreal.ca.
Centre Hospitalier Universitaire Sainte-Justine · CAUniversité de Montréal · CADuke University · US

Funding

CIHR MOP-102709
6 · The paper itself

Abstract

Brain neurogenesis is severely impaired following exposure to ionizing radiation (IR). We and others have shown that the expression of the tumor suppressor gene p16INK4a is increased in tissues exposed to IR and thus hypothesized that its expression could limit neurogenesis in the irradiated brain. Here, we found that exposure to IR leads to persistent DNA damage and the expression of p16INK4a in the hippocampus and subventricular zone regions. This was accompanied by a decline in neurogenesis, as determined by doublecortin expression and bromodeoxyuridine incorporation, an effect partially restored in Ink4a/arf-null mice. Increased neurogenesis in the absence of INK4a/ARF expression was independent of apoptosis and activation of the microglia. Moreover, treatment of irradiated mice with a superoxide dismutase mimetic or clearance of p16INK4a-expressing cells using mouse genetics failed to increase neurogenesis. In conclusion, our results suggest that IR-induced p16INK4a expression is a mechanism that limits neurogenesis.

Indexed as

Radiation, IonizingAnimalsApoptosisBiomarkersBiomimeticsBrainCellular SenescenceCyclin-Dependent Kinase Inhibitor p16DNA DamageGene Expression RegulationMiceMice, TransgenicMicrogliaMolecular ImagingNeural Stem CellsNeurogenesisBiomarkersCyclin-Dependent Kinase Inhibitor p16Superoxide DismutaseTumor Suppressor Protein p53DNA damageINK4a/ARFirradiationneurogenesisp53senescence

Identifiers

PMID29706499
PMCPMC5989693
OpenAlexW2802777894

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.