Evidence map›Paper›PMID 22290807›Full record

ArticleStem cells (Dayton, Ohio)2012

An endogenous vitamin K-dependent mechanism regulates cell proliferation in the brain subventricular stem cell niche.

Aurore Gely-Pernot, Valérie Coronas, Thomas Harnois, Laetitia Prestoz, Nathalie Mandairon, Anne Didier, Jean Marc Berjeaud, Arnaud Monvoisin, Nicolas Bourmeyster, Pablo García De Frutos and 2 more

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Stem cells (Dayton, Ohio), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06817512 (Health Effects of Vitamin K2 Supplementation on Skeletal Muscle and Neurological Function After Ischemic Stroke), which is not on this map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.3field-weighted citation impact, top 22% 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.

NCT06817512 naactive not recruitingnot on this mapstarted 2025, after this paper: background citation

Health Effects of Vitamin K2 Supplementation on Skeletal Muscle and Neurological Function After Ischemic Stroke

TypeinterventionalSponsorHarbin Medical UniversityRan2025 to 2028Enrolled190ConditionsIschemic StrokeArmsVitamin K2, Placebo
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 42 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Adult neural stem cells mediate hippocampal synapse elimination for circuit homeostasis through MERTK.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. TAM Signaling in the Nervous System.Brain plasticity (Amsterdam, Netherlands) · 2021
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

12 authors at 4 institutions in 2 countries.

Aurore Gely-PernotInstitut de Physiologie et Biologie Cellulaires, CNRS-UMR 6187 Université de Poitiers, Poitiers, France.
Valérie Coronas
Thomas Harnois
Laetitia Prestoz
Nathalie Mandairon
Anne Didier
Jean Marc Berjeaud
Arnaud Monvoisin
Nicolas Bourmeyster
Pablo García De Frutos
Michel Philippe
Omar Benzakour
Centre National de la Recherche Scientifique · FRUniversité de Poitiers · FRUniversité Claude Bernard Lyon 1 · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neural stem cells (NSC) persist in the adult mammalian brain, within the subventricular zone (SVZ). The endogenous mechanisms underpinning SVZ stem and progenitor cell proliferation are not fully elucidated. Vitamin K-dependent proteins (VKDPs) are mainly secreted factors that were initially discovered as major regulators of blood coagulation. Warfarin ((S(-)-3-acetonylbenzyl)-4-hydroxycoumarin)), a widespread anticoagulant, is a vitamin K antagonist that inhibits the production of functional VKDP. We demonstrate that the suppression of functional VKDPs production, in vitro, by exposure of SVZ cell cultures to warfarin or, in vivo, by its intracerebroventricular injection to mice, leads to a substantial increase in SVZ cell proliferation. We identify the anticoagulant factors, protein S and its structural homolog Gas6, as the two only VKDPs produced by SVZ cells and describe the expression and activation pattern of their Tyro3, Axl, and Mer tyrosine kinase receptors. Both in vitro and in vivo loss of function studies consisting in either Gas6 gene invalidation or in endogenous protein S neutralization, provided evidence for an important novel regulatory role of these two VKDPs in the SVZ neurogenic niche. Specifically, we show that while a loss of Gas6 leads to a reduction in the numbers of stem-like cells and in olfactory bulb neurogenesis, endogenous protein S inhibits SVZ cell proliferation. Our study opens up new perspectives for investigating further the role of vitamin K, VKDPs, and anticoagulants in NSC biology in health and disease.

Indexed as

Stem Cell NicheAnimalsApoptosisAxl Receptor Tyrosine KinaseCarbon-Carbon LigasesCell ProliferationCerebral VentriclesGene Knockout TechniquesGrowth Arrest-Specific Protein 6HEK293 CellsHumansIntercellular Signaling Peptides and ProteinsMiceMixed Function OxygenasesProtein SProto-Oncogene ProteinsAxl Receptor Tyrosine KinaseCarbon-Carbon Ligasesglutamyl carboxylaseGrowth Arrest-Specific Protein 6Intercellular Signaling Peptides and ProteinsMixed Function OxygenasesProtein SProto-Oncogene ProteinsReceptor Protein-Tyrosine KinasesTyro3 protein, mouseVitamin KVitamin K Epoxide ReductasesWarfarin

Identifiers

PMID22290807
PMCPMC3601423
OpenAlexW2051035972

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.