Evidence map›Paper›PMID 16645215›Full record

ArticleThe Journal of molecular diagnostics : JMD2006

Glioma test array for use with formalin-fixed, paraffin-embedded tissue: array comparative genomic hybridization correlates with loss of heterozygosity and fluorescence in situ hybridization.

Gayatry Mohapatra, Rebecca A Betensky, Ezra R Miller, Bjorn Carey, Leah D Gaumont, David A Engler, David N Louis

Abstract readComparative Study
In one paragraph

Article in The Journal of molecular diagnostics : JMD, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
–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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  8. Review
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  14. Transparency of reporting in molecular diagnostics.International journal of molecular sciences · 2013
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  20. Array-based genomics in glioma research.Brain pathology (Zurich, Switzerland) · 2010
    Review
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

7 authors.

Gayatry MohapatraDepartment of Pathology, Cancer Center and Neurosurgical Service, Massachusetts General Hospital and Harvard Medical School, Boston 02129, USA.
Rebecca A Betensky
Ezra R Miller
Bjorn Carey
Leah D Gaumont
David A Engler
David N Louis

Funding

TOWARD A MOLECULAR CLASSIFICATION OF HUMAN GLIOMASR01CA057683 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI LOUIS, DAVID N · 1992 to 2013
$4.7M
Training in Neurostatistics and NeuroepidemiologyT32NS048005 · NINDS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI ONNELA, JUKKA-PEKKA · 2004 to 2018
$3.2M
Custom array CGH for glioma diagnosis and managementR33CA106695 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI LOUIS, DAVID N · 2007 to 2009
$1.0M
Custom array CGH for glioma diagnosis and managementR21CA106695 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI LOUIS, DAVID N · 2005 to 2006
$297k
NCI NIH HHS CA106695NCI NIH HHS CA57683NCI NIH HHS R01 CA057683NCI NIH HHS R21 CA106695NCI NIH HHS R33 CA106695NINDS NIH HHS NS048005NINDS NIH HHS T32 NS048005
6 · The paper itself

Abstract

Array-based comparative genomic hybridization (aCGH) is a powerful, high-throughput tool for whole genome analysis. Until recently, aCGH could only be reproducibly performed on frozen tissue samples and with significant tissue amounts. For brain tumors however, paraffin-embedded tissue blocks from small stereotactic biopsies may be the only tissue routinely available. The development of methods to analyze formalin-fixed, paraffin-embedded (FFPE) material therefore has the potential to impact molecular diagnosis in a significant way. To this end, we constructed a BAC array representing chromosomes 1, 7, 19, and X because 1p/19q deletion and EGFR gene amplification provide clinically relevant information for glioma diagnosis. We also optimized a two-step labeling procedure using an amine-modified nucleotide for generating aCGH probes. Using this approach, we analyzed a series of 28 FFPE oligodendroglial tumors for alterations of chromosomes 1, 7, and 19. We also independently assayed these tumors for 1p/19q deletion by fluorescence in situ hybridization and by loss of heterozygosity analyses. The concordance between aCGH, standard loss of heterozygosity and fluorescence in situ hybridization was nearly 100% for the chromosomes analyzed. These results suggest that aCGH could offer an improved molecular diagnostic approach for gliomas because of its ability to detect clinically relevant molecular alterations in small FFPE specimens.

Indexed as

Cold TemperatureDNAFemaleFormaldehydeGenomeGliomaHumansIn Situ Hybridization, FluorescenceLoss of HeterozygosityMaleParaffin EmbeddingTissue Array AnalysisDNAFormaldehyde

Identifiers

PMID16645215
PMCPMC1867586

What OpenQuestion holds

Textmetadata
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.