Evidence map›Paper›PMID 26752305›Full record

ArticleThe Journal of molecular diagnostics : JMD2016

Multiplex Preamplification of Serum DNA to Facilitate Reliable Detection of Extremely Rare Cancer Mutations in Circulating DNA by Digital PCR.

Jennifer B Jackson, Daniel S Choi, James D Luketich, Arjun Pennathur, Anders Ståhlberg, Tony E Godfrey

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of molecular diagnostics : JMD, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 46 citations in OpenAlex.

  1. High-Sensitivity ctDNA Analysis Uncovers Relevant Signals Missed by NGS in Pancreatic Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
    Article
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  6. Absolute Quantification of Donor-Derived Cell-Free DNA in Pediatric and Adult Patients After Heart Transplantation: A Prospective Study.Transplant international : official journal of the European Society for Organ Transplantation · 2023
    Observational
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  14. Review
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  19. Two different, mutually exclusively distributed,Cold Spring Harbor molecular case studies · 2017
    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 at 2 institutions in 2 countries.

Jennifer B JacksonDepartment of Surgery, Boston University School of Medicine, Boston, Massachusetts.
Daniel S ChoiDepartment of Surgery, Boston University School of Medicine, Boston, Massachusetts.
James D LuketichDepartment of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.
Arjun PennathurDepartment of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.
Anders StåhlbergDepartment of Surgery, Boston University School of Medicine, Boston, Massachusetts; Department of Pathology, Sahlgrenska Cancer Center, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenberg, Sweden.
Tony E GodfreyDepartment of Surgery, Boston University School of Medicine, Boston, Massachusetts. Electronic address: godfreyt@bu.edu.
Boston University · USUniversity of Pittsburgh · US

Funding

Innovative approach to cancer detection and treatment monitoringR21CA172999 · NCI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI GODFREY, TONY E · 2013 to 2014
$397k
NCI NIH HHS R21 CA172999PHS HHS 9500302322
6 · The paper itself

Abstract

Tumor-specific mutations can be identified in circulating, cell-free DNA in plasma or serum and may serve as a clinically relevant alternative to biopsy. Detection of tumor-specific mutations in the plasma, however, is technically challenging. First, mutant allele fractions are typically low in a large background of wild-type circulating, cell-free DNA. Second, the amount of circulating, cell-free DNA acquired from plasma is also low. Even when using digital PCR (dPCR), rare mutation detection is challenging because there is not enough circulating, cell-free DNA to run technical replicates and assay or instrument noise does not easily allow for mutation detection <0.1%. This study was undertaken to improve on the robustness of dPCR for mutation detection. A multiplexed, preamplification step using a high-fidelity polymerase before dPCR was developed to increase total DNA and the number of targets and technical replicates that can be assayed from a single sample. We were able to detect multiple cancer-relevant mutations within tumor-derived samples down to 0.01%. Importantly, the signal/noise ratio was improved for all preamplified targets, allowing for easier discrimination of low-abundance mutations against false-positive signal. Furthermore, we used this protocol on clinical samples to detect known, tumor-specific mutations in patient sera. This study provides a protocol for robust, sensitive detection of circulating tumor DNA for future clinical applications.

Indexed as

DNA-Directed DNA PolymeraseDNA Mutational AnalysisDNA, NeoplasmGene FrequencyHumansNeoplasmsNucleic Acid Amplification TechniquesPolymerase Chain ReactionProto-Oncogene Proteins p21(ras)Sensitivity and SpecificitySmad4 ProteinTumor Suppressor Protein p53DNA-Directed DNA PolymeraseDNA, NeoplasmKRAS protein, humanProto-Oncogene Proteins p21(ras)Smad4 ProteinSMAD4 protein, humanTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID26752305
PMCPMC4851734
OpenAlexW2223306551

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.