Evidence map›Paper›PMID 27560999›Full record

ArticlePloS one2016

Tumor Touch Imprints as Source for Whole Genome Analysis of Neuroblastoma Tumors.

Clemens Brunner, Bettina Brunner-Herglotz, Andrea Ziegler, Christian Frech, Gabriele Amann, Ruth Ladenstein, Inge M Ambros, Peter F Ambros

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 37% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Clemens BrunnerDepartment of Tumor Biology, CCRI, Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria.
Bettina Brunner-HerglotzDepartment of Tumor Biology, CCRI, Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria.
Andrea ZieglerDepartment of Tumor Biology, CCRI, Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria.
Christian FrechDepartment of Tumor Biology, CCRI, Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria.
Gabriele AmannInstitute of Clinical Pathology, Medical University Vienna, Vienna, Austria.
Ruth LadensteinS2IRP, CCRI, Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria.
Inge M AmbrosDepartment of Tumor Biology, CCRI, Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria.
Peter F AmbrosDepartment of Tumor Biology, CCRI, Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria.
St. Anna Children's Cancer Research InstituteMedical University of Vienna · ATSt Anna Children's Hospital · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTumor touch imprints (TTIs) are routinely used for the molecular diagnosis of neuroblastomas by interphase fluorescence in-situ hybridization (I-FISH). However, in order to facilitate a comprehensive, up-to-date molecular diagnosis of neuroblastomas and to identify new markers to refine risk and therapy stratification methods, whole genome approaches are needed. We examined the applicability of an ultra-high density SNP array platform that identifies copy number changes of varying sizes down to a few exons for the detection of genomic changes in tumor DNA extracted from TTIs. MATERIAL AND

methodsDNAs were extracted from TTIs of 46 neuroblastoma and 4 other pediatric tumors. The DNAs were analyzed on the Cytoscan HD SNP array platform to evaluate numerical and structural genomic aberrations. The quality of the data obtained from TTIs was compared to that from randomly chosen fresh or fresh frozen solid tumors (n = 212) and I-FISH validation was performed.

resultsSNP array profiles were obtained from 48 (out of 50) TTI DNAs of which 47 showed genomic aberrations. The high marker density allowed for single gene analysis, e.g. loss of nine exons in the ATRX gene and the visualization of chromothripsis. Data quality was comparable to fresh or fresh frozen tumor SNP profiles. SNP array results were confirmed by I-FISH.

conclusionTTIs are an excellent source for SNP array processing with the advantage of simple handling, distribution and storage of tumor tissue on glass slides. The minimal amount of tumor tissue needed to analyze whole genomes makes TTIs an economic surrogate source in the molecular diagnostic work up of tumor samples.

Indexed as

In Situ Hybridization, FluorescenceBiomarkers, TumorChromosome AberrationsComputational BiologyDNA, NeoplasmFeasibility StudiesGenome, HumanHumansLoss of HeterozygosityNeoplasmsNeuroblastomaOligonucleotide Array Sequence AnalysisPolymorphism, Single NucleotideSignal Processing, Computer-AssistedBiomarkers, TumorDNA, Neoplasm

Identifiers

PMID27560999
PMCPMC4999140
OpenAlexW2517538230

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Registered trials

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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.