Evidence map›Paper›PMID 24046260›Full record

ArticleNeuro-oncology2013

Serum-free culture success of glial tumors is related to specific molecular profiles and expression of extracellular matrix-associated gene modules.

Rutger K Balvers, Anne Kleijn, Jenneke J Kloezeman, Pim J French, Andreas Kremer, Martin J van den Bent, Clemens M F Dirven, Sieger Leenstra, Martine L M Lamfers

Abstract read
In one paragraph

Article in Neuro-oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
–field-weighted citation impact
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

48 citing papers in PubMed.

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  18. Opportunities and challenges of glioma organoids.Cell communication and signaling : CCS · 2021
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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

9 authors.

Rutger K BalversCorresponding Author: Martine Lamfers, PhD, Dept. of Neurosurgery, Dr. Molewaterplein 50, Ee2236, 3015GE Rotterdam, the Netherlands. m.lamfers@erasmusmc.nl.
Anne Kleijn
Jenneke J Kloezeman
Pim J French
Andreas Kremer
Martin J van den Bent
Clemens M F Dirven
Sieger Leenstra
Martine L M Lamfers

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent molecular characterization studies have identified clinically relevant molecular subtypes to coexist within the same histological entities of glioma. Comparative studies between serum-supplemented and serum-free (SF) culture conditions have demonstrated that SF conditions select for glioma stem-like cells, which superiorly conserve genomic alterations. However, neither the representation of molecular subtypes within SF culture assays nor the molecular distinctions between successful and nonsuccessful attempts have been elucidated.

methodsA cohort of 261 glioma samples from varying histological grades was documented for SF culture success and clinical outcome. Gene expression and single nucleotide polymorphism arrays were interrogated on a panel of tumors for comparative analysis of SF+ (successful cultures) and SF- (unsuccessful cultures).

resultsSF culture outcome was correlated with tumor grade, while no relation was found between SF+ and patient overall survival. Copy number-based hierarchical clustering revealed an absolute separation between SF+ and SF- parental tumors. All SF+ cultures are derived from tumors that are isocitrate dehydrogenase 1 (IDH1) wild type, chromosome 7 amplified, and chromosome 10q deleted. SF- cultures derived from IDH1 mutant tumors demonstrated a fade-out of mutated cells during the first passages. SF+ tumors were enriched for The Cancer Genome Atlas Classical subtype and intrinsic glioma subtype-18. Comparative gene ontology analysis between SF+ and SF- tumors demonstrated enrichment for modules associated with extracellular matrix composition, Hox-gene signaling, and inflammation.

conclusionSF cultures are derived from a subset of parental tumors with a shared molecular background including enrichment for extracellular matrix-associated gene modules. These results provide leads to develop enhanced culture protocols for glioma samples not propagatable under current SF conditions.

Indexed as

Culture Media, Serum-FreeGene Expression ProfilingGene Regulatory NetworksBiomarkers, TumorBrain NeoplasmsExtracellular MatrixGliomaHumansMutationOligonucleotide Array Sequence AnalysisPolymorphism, Single NucleotidePrognosisTumor Cells, CulturedBiomarkers, TumorCulture Media, Serum-Freeextracellular matrixgliomaIDH1molecular subtypeserum-free cultures

Identifiers

PMID24046260
PMCPMC3829587

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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.