Evidence map›Paper›PMID 34558310›Full record

ArticleBone & joint research2021

Detection and utility of cell-free and circulating tumour DNA in bone and soft-tissue sarcomas.

Kim M Tsoi, Nalan Gokgoz, Paige Darville-O'Quinn, Patrick Prochazka, Ainaz Malekoltojari, Anthony M Griffin, Peter C Ferguson, Jay S Wunder, Irene L Andrulis

Open access · goldAbstract read
In one paragraph

Article in Bone & joint research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.3field-weighted citation impact, top 49% 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

12 citing papers in PubMed, 12 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

9 authors at 2 institutions in 1 country.

Kim M TsoiUniversity of Toronto Musculoskeletal Oncology Unit, Sinai Health System, Toronto, Canada.ORCID 0000-0003-4329-2333
Nalan GokgozLunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.ORCID 0000-0003-3229-1837
Paige Darville-O'QuinnLunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.ORCID 0000-0001-8923-1224
Patrick ProchazkaLunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.ORCID 0000-0003-3272-265X
Ainaz MalekoltojariLunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.ORCID 0000-0002-7352-8776
Anthony M GriffinUniversity of Toronto Musculoskeletal Oncology Unit, Sinai Health System, Toronto, Canada.ORCID 0000-0003-4462-3974
Peter C FergusonUniversity of Toronto Musculoskeletal Oncology Unit, Sinai Health System, Toronto, Canada.ORCID 0000-0003-2630-112X
Jay S WunderUniversity of Toronto Musculoskeletal Oncology Unit, Sinai Health System, Toronto, Canada.ORCID 0000-0002-5978-9400
Irene L AndrulisLunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.ORCID 0000-0002-4226-6435
University of Toronto · CALunenfeld-Tanenbaum Research Institute · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsCell-free DNA (cfDNA) and circulating tumour DNA (ctDNA) are used for prognostication and monitoring in patients with carcinomas, but their utility is unclear in sarcomas. The objectives of this pilot study were to explore the prognostic significance of cfDNA and investigate whether tumour-specific alterations can be detected in the circulation of sarcoma patients.

methodsMatched tumour and blood were collected from 64 sarcoma patients (n = 70 samples) prior to resection of the primary tumour (n = 57) or disease recurrence (n = 7). DNA was isolated from plasma, quantified, and analyzed for cfDNA. A subset of cases (n = 6) underwent whole exome sequencing to identify tumour-specific alterations used to detect ctDNA using digital droplet polymerase chain reaction (ddPCR).

resultsCell-free was present in 69 of 70 samples above 0.5 ng/ml. Improved disease-free survival was found for patients with lower cfDNA levels (90% vs 48% at one-year for ≤ 6 ng/ml and > 6 ng/ml, respectively; p = 0.005). Digital droplet PCR was performed as a pilot study and mutant alleles were detectable at 0.5% to 2.5% of the wild type genome, and at a level of 0.25 ng tumour DNA. Tumour-specific alterations (ctDNA) were found in five of six cases.

conclusionThis work demonstrates the feasibility and potential utility of cfDNA and ctDNA as biomarkers for bone and soft-tissue sarcomas, despite the lack of recurrent genomic alterations. A larger study is required to validate these findings. Cite this article:

Indexed as

biomarkersbloodcancerscarcinomasCell-free DNAchondrosarcomaCirculating tumour DNADNAspolymerase chain reactionquantitative PCRSarcomaSarcomassoft-tissue sarcomas

Identifiers

PMID34558310
PMCPMC8479566
OpenAlexW3201200552

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.