Evidence map›Paper›PMID 36215273›Full record

ArticleNeuro-oncology2023

Spatial transcriptomic analysis delineates epithelial and mesenchymal subpopulations and transition stages in childhood ependymoma.

Rui Fu, Gregory A Norris, Nicholas Willard, Andrea M Griesinger, Kent A Riemondy, Vladimir Amani, Enrique Grimaldo, Faith Harris, Todd C Hankinson, Siddhartha Mitra and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. A brief history of ependymoma.Neuro-oncology · 2026
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Development of Chromosome 1q+ Specific Treatment for Highest Risk Pediatric Posterior Fossa Ependymoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Frontiers in oncology · 2023
    Article
  19. 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

14 authors at 3 institutions in 2 countries.

Rui FuRNA Biosciences Initiative, University of Colorado Denver, Aurora, Colorado, USA.
Gregory A NorrisDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Nicholas WillardDepartment of Pathology, University of Colorado Denver, Aurora, Colorado, USA.
Andrea M GriesingerDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Kent A RiemondyRNA Biosciences Initiative, University of Colorado Denver, Aurora, Colorado, USA.ORCID 0000-0003-0750-1273
Vladimir AmaniDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Enrique GrimaldoDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Faith HarrisDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Todd C HankinsonMorgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado, USA.
Siddhartha MitraDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Timothy A RitzmannChildren's Brain Tumor Research Centre, School of Medicine, University of Nottingham, Nottingham, UK.
Richard R GrundyChildren's Brain Tumor Research Centre, School of Medicine, University of Nottingham, Nottingham, UK.
Nicholas K ForemanDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Andrew M DonsonDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.ORCID 0000-0003-1153-6911
Morgan Adams Foundation · USUniversity of Colorado Denver · USUniversity of Nottingham · GB

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
Investigation of a Novel Cancer Stem Cell Population in Ependymoma.R01CA237608 · NCI · UNIVERSITY OF COLORADO DENVER · PI FOREMAN, NICHOLAS K · 2019 to 2023
$1.8M
NCI NIH HHS P30 CA046934NCI NIH HHS R01 CA237608
6 · The paper itself

Abstract

backgroundThe diverse cellular constituents of childhood brain tumor ependymoma, recently revealed by single cell RNA-sequencing, may underly therapeutic resistance. Here we use spatial transcriptomics to further advance our understanding of the tumor microenvironment, mapping cellular subpopulations to the tumor architecture of ependymoma posterior fossa subgroup A (PFA), the commonest and most deadly childhood ependymoma variant.

methodsSpatial transcriptomics data from intact PFA sections was deconvoluted to resolve the histological arrangement of neoplastic and non-neoplastic cell types. Key findings were validated using immunohistochemistry, in vitro functional assays and outcome analysis in clinically-annotated PFA bulk transcriptomic data.

resultsPFA are comprised of epithelial and mesenchymal histological zones containing a diversity of cellular states, each zone including co-existing and spatially distinct undifferentiated progenitor-like cells; a quiescent mesenchymal zone population, and a second highly mitotic progenitor population that is restricted to hypercellular epithelial zones and that is more abundant in progressive tumors. We show that myeloid cell interaction is the leading cause of mesenchymal transition in PFA, occurring in zones spatially distinct from hypoxia-induced mesenchymal transition, and these distinct EMT-initiating processes were replicated using in vitro models of PFA.

conclusionsThese insights demonstrate the utility of spatial transcriptomics to advance our understanding of ependymoma biology, revealing a clearer picture of the cellular constituents of PFA, their interactions and influence on tumor progression.

Indexed as

Brain NeoplasmsEpendymomaInfratentorial NeoplasmsEpithelial-Mesenchymal TransitionHumansTranscriptomeTumor Microenvironmentependymomaspatial transcriptomicstumor microenvironment

Identifiers

PMID36215273
PMCPMC10076949
OpenAlexW4304114149

What OpenQuestion holds

Textmetadata
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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.