Evidence map›Paper›PMID 17343727›Full record

ArticleBMC cancer2007

Automated array-CGH optimized for archival formalin-fixed, paraffin-embedded tumor material.

Simon A Joosse, Erik H van Beers, Petra M Nederlof

Abstract read
In one paragraph

Article in BMC cancer, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

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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

3 authors.

Simon A JoosseDivision of Experimental Therapy, the Netherlands Cancer Institute, Amsterdam, The Netherlands. s.joosse@nki.nl
Erik H van Beers
Petra M Nederlof

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundArray Comparative Genomic Hybridization (aCGH) is a rapidly evolving technology that still lacks complete standardization. Yet, it is of great importance to obtain robust and reproducible data to enable meaningful multiple hybridization comparisons. Special difficulties arise when aCGH is performed on archival formalin-fixed, paraffin-embedded (FFPE) tissue due to its variable DNA quality. Recently, we have developed an effective DNA quality test that predicts suitability of archival samples for BAC aCGH.

methodsIn this report, we first used DNA from a cancer cell-line (SKBR3) to optimize the aCGH protocol for automated hybridization, and subsequently optimized and validated the procedure for FFPE breast cancer samples. We aimed for highest throughput, accuracy, and reproducibility applicable to FFPE samples, which can also be important in future diagnostic use.

resultsOur protocol of automated array-CGH on archival FFPE ULS-labeled DNA showed very similar results compared with published data and our previous manual hybridization method.

conclusionThis report combines automated aCGH on unamplified archival FFPE DNA using non-enzymatic ULS labeling, and describes an optimized protocol for this combination resulting in improved quality and reproducibility.

Indexed as

AutomationBiopsy, NeedleBreast NeoplasmsCell Line, TumorDNA, NeoplasmFemaleFormaldehydeHumansNucleic Acid HybridizationOligonucleotide Array Sequence AnalysisParaffin EmbeddingReproducibility of ResultsSampling StudiesSensitivity and SpecificityTissue FixationDNA, NeoplasmFormaldehyde

Identifiers

PMID17343727
PMCPMC1829401

What OpenQuestion holds

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LicenceCC BY
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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.