Evidence map›Paper›PMID 19959798›Full record

ArticleThe Journal of molecular diagnostics : JMD2010

Sensitive and specific KRAS somatic mutation analysis on whole-genome amplified DNA from archival tissues.

Ronald van Eijk, Marjo van Puijenbroek, Amiet R Chhatta, Nisha Gupta, Rolf H A M Vossen, Esther H Lips, Anne-Marie Cleton-Jansen, Hans Morreau, Tom van Wezel

Open access · bronzeAbstract readEvaluation Study
In one paragraph

Article in The Journal of molecular diagnostics : JMD, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
2.2field-weighted citation impact, top 11% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Diagnostic RAS mutation analysis by polymerase chain reaction (PCR).Biomolecular detection and quantification · 2016
    Article
  5. Article
  6. Molecular backgrounds of ERAP1 downregulation in cervical carcinoma.Analytical cellular pathology (Amsterdam) · 2015
    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

9 authors at 1 institution in 1 country.

Ronald van EijkDepartment of Pathology, Leiden University Medical Center, Leiden, The Netherlands.
Marjo van Puijenbroek
Amiet R Chhatta
Nisha Gupta
Rolf H A M Vossen
Esther H Lips
Anne-Marie Cleton-Jansen
Hans Morreau
Tom van Wezel
Leiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Kirsten RAS (KRAS) is a small GTPase that plays a key role in Ras/mitogen-activated protein kinase signaling; somatic mutations in KRAS are frequently found in many cancers. The most common KRAS mutations result in a constitutively active protein. Accurate detection of KRAS mutations is pivotal to the molecular diagnosis of cancer and may guide proper treatment selection. Here, we describe a two-step KRAS mutation screening protocol that combines whole-genome amplification (WGA), high-resolution melting analysis (HRM) as a prescreen method for mutation carrying samples, and direct Sanger sequencing of DNA from formalin-fixed, paraffin-embedded (FFPE) tissue, from which limited amounts of DNA are available. We developed target-specific primers, thereby avoiding amplification of homologous KRAS sequences. The addition of herring sperm DNA facilitated WGA in DNA samples isolated from as few as 100 cells. KRAS mutation screening using high-resolution melting analysis on wgaDNA from formalin-fixed, paraffin-embedded tissue is highly sensitive and specific; additionally, this method is feasible for screening of clinical specimens, as illustrated by our analysis of pancreatic cancers. Furthermore, PCR on wgaDNA does not introduce genotypic changes, as opposed to unamplified genomic DNA. This method can, after validation, be applied to virtually any potentially mutated region in the genome.

Indexed as

MutationAdenocarcinomaDNADNA PrimersFormaldehydeGenetic TestingGenome, HumanHumansPancreatic NeoplasmsParaffin EmbeddingProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsSensitivity and SpecificityTissue FixationDNADNA PrimersFormaldehydeKRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras Proteins

Identifiers

PMID19959798
PMCPMC2797715
OpenAlexW2141190489

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.