Evidence map›Paper›PMID 31828328›Full record

ArticleNucleic acids research2020

Highly specific enrichment of rare nucleic acid fractions using Thermus thermophilus argonaute with applications in cancer diagnostics.

Jinzhao Song, Jorrit W Hegge, Michael G Mauk, Junman Chen, Jacob E Till, Neha Bhagwat, Lotte T Azink, Jing Peng, Moen Sen, Jazmine Mays and 3 more

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
3.9field-weighted citation impact, top 5% 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

51 citing papers in PubMed, 141 citations in OpenAlex.

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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

13 authors at 2 institutions in 2 countries.

Jinzhao SongDepartment of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, USA.
Jorrit W HeggeLaboratory of Microbiology, Department of Agrotechnology and Food Sciences, Wageningen University,The Netherlands.
Michael G MaukDepartment of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, USA.
Junman ChenDepartment of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, USA.
Jacob E TillPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Neha BhagwatPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Lotte T AzinkLaboratory of Microbiology, Department of Agrotechnology and Food Sciences, Wageningen University,The Netherlands.
Jing PengDepartment of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, USA.
Moen SenPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Jazmine MaysPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Erica L CarpenterPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
John van der OostLaboratory of Microbiology, Department of Agrotechnology and Food Sciences, Wageningen University,The Netherlands.
Haim H BauDepartment of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, USA.
University of Pennsylvania · USWageningen University & Research · NL

Funding

Smartphone-based detection of cancer mutant alleles in biological samplesR21TW011496 · FIC · UNIVERSITY OF PENNSYLVANIA · PI BAU, HAIM H, SONG, JINZHAO · 2019 to 2020
$406k
High Sensitivity Detection of Mutant cf-ctDNA with DNA-Guided Argonaut EnzymesR21CA227056 · NCI · UNIVERSITY OF PENNSYLVANIA · PI BAU, HAIM H · 2018 to 2019
$380k
Smartphone-based mobile detection platform for lung cancer detection in ChinaK01TW011190 · FIC · UNIVERSITY OF PENNSYLVANIA · PI SONG, JINZHAO · 2019 to 2020
$225k
FIC NIH HHS K01 TW011190FIC NIH HHS R21 TW011496NCI NIH HHS R21 CA227056
6 · The paper itself

Abstract

Detection of disease-associated, cell-free nucleic acids in body fluids enables early diagnostics, genotyping and personalized therapy, but is challenged by the low concentrations of clinically significant nucleic acids and their sequence homology with abundant wild-type nucleic acids. We describe a novel approach, dubbed NAVIGATER, for increasing the fractions of Nucleic Acids of clinical interest Via DNA-Guided Argonaute from Thermus thermophilus (TtAgo). TtAgo cleaves specifically guide-complementary DNA and RNA with single nucleotide precision, greatly increasing the fractions of rare alleles and, enhancing the sensitivity of downstream detection methods such as ddPCR, sequencing, and clamped enzymatic amplification. We demonstrated 60-fold enrichment of the cancer biomarker KRAS G12D and ∼100-fold increased sensitivity of Peptide Nucleic Acid (PNA) and Xenonucleic Acid (XNA) clamp PCR, enabling detection of low-frequency (<0.01%) mutant alleles (∼1 copy) in blood samples of pancreatic cancer patients. NAVIGATER surpasses Cas9-based assays (e.g. DASH, Depletion of Abundant Sequences by Hybridization), identifying more mutation-positive samples when combined with XNA-PCR. Moreover, TtAgo does not require targets to contain any specific protospacer-adjacent motifs (PAM); is a multi-turnover enzyme; cleaves ssDNA, dsDNA and RNA targets in a single assay; and operates at elevated temperatures, providing high selectivity and compatibility with polymerases.

Indexed as

AllelesArgonaute ProteinsCell-Free Nucleic AcidsHumansMutationNeoplasmsPeptide Nucleic AcidsThermus thermophilusArgonaute ProteinsCell-Free Nucleic AcidsPeptide Nucleic Acids

Identifiers

PMID31828328
PMCPMC7038991
OpenAlexW2995514435

What OpenQuestion holds

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LicenceCC BY-NC
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.