Evidence map›Paper›PMID 22995035›Full record

ArticleJournal of experimental & clinical cancer research : CR2012

A comparison of Direct sequencing, Pyrosequencing, High resolution melting analysis, TheraScreen DxS, and the K-ras StripAssay for detecting KRAS mutations in non small cell lung carcinomas.

Sylwia Jancik, Jiri Drabek, Jitka Berkovcova, Yong Zhong Xu, Marcela Stankova, Jiri Klein, Vitezslav Kolek, Josef Skarda, Tomas Tichy, Ivona Grygarkova and 2 more

Abstract read
In one paragraph

Article in Journal of experimental & clinical cancer research : CR, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Association between NQO1 C609T polymorphism and prostate cancer risk.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  2. Association between estrogen receptor alpha PvuII polymorphism and prostate cancer risk.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  3. Association between IL-4 -589C>T polymorphism and colorectal cancer risk.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  4. Review
  5. Review
  6. Clinical and prognostic significance of detectingTranslational lung cancer research · 2023
    Article
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  12. Turkish journal of haematology : official journal of Turkish Society of Haematology · 2018
    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

12 authors.

Sylwia JancikLaboratory of Experimental Medicine, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University and University Hospital in Olomouc, Olomouc, Czech Republic.
Jiri Drabek
Jitka Berkovcova
Yong Zhong Xu
Marcela Stankova
Jiri Klein
Vitezslav Kolek
Josef Skarda
Tomas Tichy
Ivona Grygarkova
Danuta Radzioch
Marian Hajduch

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt is mandatory to confirm the absence of mutations in the KRAS gene before treating metastatic colorectal cancers with epidermal growth factor receptor inhibitors, and similar regulations are being considered for non-small cell lung carcinomas (NSCLC) and other tumor types. Routine diagnosis of KRAS mutations in NSCLC is challenging because of compromised quantity and quality of biological material. Although there are several methods available for detecting mutations in KRAS, there is little comparative data regarding their analytical performance, economic merits, and workflow parameters.

methodsWe compared the specificity, sensitivity, cost, and working time of five methods using 131 frozen NSCLC tissue samples. We extracted genomic DNA from the samples and compared the performance of Sanger cycle sequencing, Pyrosequencing, High-resolution melting analysis (HRM), and the Conformité Européenne (CE)-marked TheraScreen DxS and K-ras StripAssay kits. RESULTS AND

conclusionsOur results demonstrate that TheraScreen DxS and the StripAssay, in that order, were most effective at diagnosing mutations in KRAS. However, there were still unsatisfactory disagreements between them for 6.1% of all samples tested. Despite this, our findings are likely to assist molecular biologists in making rational decisions when selecting a reliable, efficient, and cost-effective method for detecting KRAS mutations in heterogeneous clinical tumor samples.

Indexed as

Colorectal NeoplasmsSequence Analysis, DNACarcinoma, Non-Small-Cell LungCost-Benefit AnalysisDNA, NeoplasmHumansMutationProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsSensitivity and SpecificityDNA, NeoplasmKRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras Proteins

Identifiers

PMID22995035
PMCPMC3542008

What OpenQuestion holds

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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.