Evidence map›Paper›PMID 22710714›Full record

ArticleOncogene2013

Bax deficiency prolongs cerebellar neurogenesis, accelerates medulloblastoma formation and paradoxically increases both malignancy and differentiation.

I Garcia, A J Crowther, V Gama, C R Miller, C Ryan Miller, M Deshmukh, T R Gershon

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Oncogene, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

25 citing papers in PubMed, 37 citations in OpenAlex.

  1. Programmed cell death and melatonin: A comprehensive review.Functional & integrative genomics · 2024
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  7. The role of Bcl-2 proteins in modulating neuronal CaBiochimica et biophysica acta. Molecular cell research · 2021
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Molecular Basis of Pediatric Brain Tumors.Neuromolecular medicine · 2017
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

I GarciaDepartment of Neurology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA.
A J Crowther
V Gama
C R Miller
C Ryan Miller
M Deshmukh
T R Gershon
University of North Carolina at Chapel Hill · US

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Deborah F. Tate · 1985 to 2026
$201.5M
UNC-CH CENTER FOR ENVIRONMENTAL HEALTH &SUSCEPTIBILITYP30ES010126 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Melissa A. Troester · 2001 to 2026
$36.3M
Cytochrome c Degradation: A Mechanism to Restrict Apoptosis in Postmitotic CellsR01GM078366 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DESHMUKH, MOHANISH P · 2006 to 2013
$2.6M
Aerobic glycolysis regulates apoptosis in neurogenesis and medulloblastomaK08NS077978 · NINDS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI GERSHON, TIMOTHY · 2012 to 2015
$705k
NCI NIH HHS 3P30CA016086NCI NIH HHS P30 CA016086NIEHS NIH HHS 3P30ES010126NIEHS NIH HHS P30 ES010126NIGMS NIH HHS R01 GM078366NINDS NIH HHS K08 NS077978
6 · The paper itself

Abstract

Neurogenesis requires negative regulation through differentiation of progenitors or their programmed cell death (PCD). Growth regulation is particularly important in the postnatal cerebellum, where excessive progenitor proliferation promotes medulloblastoma, the most common malignant brain tumor in children. We present evidence that PCD operates alongside differentiation to regulate cerebellar granule neuron progenitors (CGNPs) and to prevent medulloblastoma. Here, we show that genetic deletion of pro-apoptotic Bax disrupts regulation of cerebellar neurogenesis and promotes medulloblastoma formation. In Bax(-/-) mice, the period of neurogenesis was extended into the third week of postnatal life, and ectopic neurons and progenitors collected in the molecular layer of the cerebellum and adjacent tectum. Importantly, genetic deletion of Bax in medulloblastoma-prone ND2:SmoA1 transgenic mice greatly accelerated tumorigenesis. Bax-deficient medulloblastomas exhibited strikingly distinct pathology, with reduced apoptosis, increased neural differentiation and tectal migration. Comparing Bax(+/+) and Bax(-/-) medulloblastomas, we were able to identify upregulation of Bcl-2 and nuclear exclusion of p27 as tumorigenic changes that are required to mitigate the tumor suppressive effect of Bax. Studies on human tumors confirmed the importance of modulating Bax in medulloblastoma pathogenesis. Our results demonstrate that Bax-dependent apoptosis regulates postnatal cerebellar neurogenesis, suppresses medulloblastoma formation and imposes selective pressure on tumors that form. Functional resistance to Bax-mediated apoptosis, required for medulloblastoma tumorigenesis, may be a tumor-specific vulnerability to be exploited for therapeutic benefit.

Indexed as

AnimalsApoptosisbcl-2-Associated X ProteinCell DifferentiationCell MovementCerebellar NeoplasmsCerebellumDown-RegulationMedulloblastomaMiceMice, TransgenicNeurogenesisProto-Oncogene Proteins c-bcl-2Receptors, G-Protein-CoupledSmoothened ReceptorStem CellsBAX protein, humanBax protein, mousebcl-2-Associated X ProteinProto-Oncogene Proteins c-bcl-2Receptors, G-Protein-CoupledSmoothened ReceptorSmo protein, mouse

Identifiers

PMID22710714
PMCPMC3449008
OpenAlexW1993539593

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.