Evidence map›Paper›PMID 28149760›Full record

ArticleTranslational lung cancer research2016

Comparison of methods for circulating cell-free DNA isolation using blood from cancer patients: impact on biomarker testing.

Clara Pérez-Barrios, Irene Nieto-Alcolado, María Torrente, Carolina Jiménez-Sánchez, Virginia Calvo, Lourdes Gutierrez-Sanz, Magda Palka, Encarnación Donoso-Navarro, Mariano Provencio, Atocha Romero

Open access · hybridAbstract read
In one paragraph

Article in Translational lung cancer research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 4 pooled it
5.8field-weighted citation impact, top 3% 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

72 citing papers in PubMed, 4 syntheses or guidelines pooled it, 135 citations in OpenAlex.

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  17. Circulating tumour DNA in colorectal cancer management.The British journal of surgery · 2023
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12 more citing papers are in PubMed but not listed here.

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

10 authors at 1 institution in 1 country.

Clara Pérez-BarriosLaboratory Medicine Department, Puerta de Hierro Hospital, Madrid, Spain.
Irene Nieto-AlcoladoTraslational Oncology Laboratoryt, Puerta de Hierro Hospital, Madrid, Spain.
María TorrenteMedical Oncology Department, Puerta de Hierro Hospital, Madrid, Spain.
Carolina Jiménez-SánchezTraslational Oncology Laboratoryt, Puerta de Hierro Hospital, Madrid, Spain.
Virginia CalvoMedical Oncology Department, Puerta de Hierro Hospital, Madrid, Spain.
Lourdes Gutierrez-SanzMedical Oncology Department, Puerta de Hierro Hospital, Madrid, Spain.
Magda PalkaMedical Oncology Department, Puerta de Hierro Hospital, Madrid, Spain.
Encarnación Donoso-NavarroLaboratory Medicine Department, Puerta de Hierro Hospital, Madrid, Spain.
Mariano ProvencioMedical Oncology Department, Puerta de Hierro Hospital, Madrid, Spain.
Atocha RomeroTraslational Oncology Laboratoryt, Puerta de Hierro Hospital, Madrid, Spain; Medical Oncology Department, Puerta de Hierro Hospital, Madrid, Spain.
Hospital Universitario Puerta de Hierro Majadahonda · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe implementation of liquid biopsy for biomarker testing and response to treatment monitoring in cancer patients would presumable increase laboratory throughput, requiring the development of automated methods for circulating free DNA (cfDNA) isolation.

methodsThe present study compares the MagNA Pure Compact (MPC) Nucleic Acid Isolation Kit I and Maxwell

resultsFirstly, we observed that MPC method significantly extracted less cfDNA than MR (P<0.0001). However, there were no significant differences in extraction yields of QCNA and MR kits. cfDNA isolation yield was also associated with tumor stage but not with tumor location. Secondly, an oligonucleosomal DNA ladder pattern was observed in 88% of the samples and significant differences in the recovery of mono-, di- and tri-nucleosomes DNA fragments were observed between MPC and MR methodologies. Finally, tumor mutation quantification on cfDNA was performed on 38 paired samples using digital PCR. Mutant allele fractions (MAFs) between paired samples were not significantly different.

conclusionsMethods for isolation of cfDNA can affect DNA yield and molecular weight fractions recovery. These observations should be taken into account for cfDNA analysis in routine clinical practice.

Indexed as

Cancercirculating free DNA (cfDNA)epidermal growth factor receptor (EGFR)KRAS

Identifiers

PMID28149760
PMCPMC5233878
OpenAlexW2570536761

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.