Evidence map›Paper›PMID 28640876›Full record

ArticlePloS one2017

Reliability and performance of commercial RNA and DNA extraction kits for FFPE tissue cores.

Palak G Patel, Shamini Selvarajah, Karl-Philippe Guérard, John M S Bartlett, Jacques Lapointe, David M Berman, John B A Okello, Paul C Park

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
3.1field-weighted citation impact, top 7% 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

44 citing papers in PubMed, 81 citations in OpenAlex.

  1. Trial
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  3. Assessing the Effects of a 3-Dimensional (3D) Pathology Tissue-Processing Workflow on Downstream Molecular Analyses.Laboratory investigation; a journal of technical methods and pathology · 2026
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  15. Optimizing genomic DNA extraction from long-term preserved formalin-fixed and paraffin-embedded lung cancer and lymph node tissues.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2024
    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

8 authors at 3 institutions in 1 country.

Palak G PatelDepartment of Pathology & Molecular Medicine, Queen's University, Kingston, Ontario, Canada.
Shamini SelvarajahDepartment of Pathology & Molecular Medicine, Queen's University, Kingston, Ontario, Canada.
Karl-Philippe GuérardDepartment of Surgery, Division of Urology, McGill University and the Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
John M S BartlettDiagnostic Development Program, Ontario Institute for Cancer Research (OICR), Toronto, Ontario, Canada.
Jacques LapointeDepartment of Surgery, Division of Urology, McGill University and the Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
David M BermanDepartment of Pathology & Molecular Medicine, Queen's University, Kingston, Ontario, Canada.
John B A OkelloDepartment of Pathology & Molecular Medicine, Queen's University, Kingston, Ontario, Canada.ORCID http://orcid.org/0000-0002-5889-1905
Paul C ParkDepartment of Pathology & Molecular Medicine, Queen's University, Kingston, Ontario, Canada.
Queen's University · CAMcGill University Health Centre · CAOntario Institute for Cancer Research · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cancer biomarker studies often require nucleic acid extraction from limited amounts of formalin-fixed, paraffin-embedded (FFPE) tissues, such as histologic sections or needle cores. A major challenge is low quantity and quality of extracted nucleic acids, which can limit our ability to perform genetic analyses, and have a significant influence on overall study design. This study was aimed at identifying the most reliable and reproducible method of obtaining sufficient high-quality nucleic acids from FFPE tissues. We compared the yield and quality of nucleic acids from 0.6-mm FFPE prostate tissue cores across 16 DNA and RNA extraction protocols, using 14 commercially available kits. Nucleic acid yield was determined by fluorometry, and quality was determined by spectrophotometry. All protocols yielded nucleic acids in quantities that are compatible with downstream molecular applications. However, the protocols varied widely in the quality of the extracted RNA and DNA. Four RNA and five DNA extraction protocols, including protocols from two kits for dual-extraction of RNA and DNA from the same tissue source, were prioritized for further quality assessment based on the yield and purity of their products. Specifically, their compatibility with downstream reactions was assessed using both NanoString nCounter gene expression assays and reverse-transcriptase real-time PCR for RNA, and methylation-specific PCR assays for DNA. The kit deemed most suitable for FFPE tissue was the AllPrep kit by Qiagen because of its yield, quality, and ability to purify both RNA and DNA from the same sample, which would be advantageous in biomarker studies.

Indexed as

FormaldehydeParaffin EmbeddingTissue FixationChemical FractionationDNADNA MethylationHumansMaleNucleic Acid HybridizationPolymerase Chain ReactionProstateReproducibility of ResultsRNADNAFormaldehydeRNA

Identifiers

PMID28640876
PMCPMC5480995
OpenAlexW2692388465

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.