Evidence map›Paper›PMID 26898768›Full record

ArticleScientific reports2016

Straightforward and sensitive RT-qPCR based gene expression analysis of FFPE samples.

Fjoralba Zeka, Katrien Vanderheyden, Els De Smet, Claude A Cuvelier, Pieter Mestdagh, Jo Vandesompele

Abstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

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  11. Effects of Essential Oils-Based Supplement andAnimals : an open access journal from MDPI · 2021
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  16. BDNF Expression in Cortical GABAergic Interneurons.International journal of molecular sciences · 2020
    Article
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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

6 authors.

Fjoralba ZekaCenter for Medical Genetics, Ghent University, Belgium.
Katrien VanderheydenCenter for Medical Genetics, Ghent University, Belgium.
Els De SmetCenter for Medical Genetics, Ghent University, Belgium.
Claude A CuvelierDepartment of Pathological Anatomy, Ghent University Hospital, Belgium.
Pieter MestdaghCenter for Medical Genetics, Ghent University, Belgium.
Jo VandesompeleCenter for Medical Genetics, Ghent University, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fragmented RNA from formalin-fixed paraffin-embedded (FFPE) tissue is a known obstacle to gene expression analysis. In this study, the impact of RNA integrity, gene-specific reverse transcription and targeted cDNA preamplification was quantified in terms of reverse transcription polymerase chain reaction (RT-qPCR) sensitivity by measuring 48 protein coding genes on eight duplicate cultured cancer cell pellet FFPE samples and twenty cancer tissue FFPE samples. More intact RNA modestly increased gene detection sensitivity by 1.6 fold (earlier detection by 0.7 PCR cycles, 95% CI = 0.593-0.850). Application of gene-specific priming instead of whole transcriptome priming during reverse transcription further improved RT-qPCR sensitivity by a considerable 4.0 fold increase (earlier detection by 2.0 PCR cycles, 95% CI = 1.73-2.32). Targeted cDNA preamplification resulted in the strongest increase of RT-qPCR sensitivity and enabled earlier detection by an average of 172.4 fold (7.43 PCR cycles, 95% CI = 6.83-7.05). We conclude that gene-specific reverse transcription and targeted cDNA preamplification are adequate methods for accurate and sensitive RT-qPCR based gene expression analysis of FFPE material. The presented methods do not involve expensive or complex procedures and can be easily implemented in any routine RT-qPCR practice.

Indexed as

DNA, ComplementaryFormaldehydeGene Expression ProfilingGene Expression RegulationHumansParaffin EmbeddingProtein BiosynthesisReal-Time Polymerase Chain ReactionRNATissue FixationDNA, ComplementaryFormaldehydeRNA

Identifiers

PMID26898768
PMCPMC4761903

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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.