Evidence map›Paper›PMID 33761899›Full record

ArticleBMC cancer2021

Detection of tumor-derived extracellular vesicles in plasma from patients with solid cancer.

Silvia R Vitale, Jean A Helmijr, Marjolein Gerritsen, Hicret Coban, Lisanne F van Dessel, Nick Beije, Michelle van der Vlugt-Daane, Paolo Vigneri, Anieta M Sieuwerts, Natasja Dits and 6 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

22 citing papers in PubMed, 32 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

16 authors at 2 institutions in 2 countries.

Silvia R Vitale *Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Jean A Helmijr *Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Marjolein GerritsenDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Hicret CobanDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Lisanne F van DesselDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Nick BeijeDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Michelle van der Vlugt-DaaneDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Paolo VigneriDepartment of Clinical and Experimental Medicine - Center for Experimental Oncology and Hematology, University of Catania, Catania, Italy.
Anieta M SieuwertsDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Natasja DitsDepartment of Urology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands.
Martin E van RoyenDepartment of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands.
Guido JensterDepartment of Urology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands.
Stefan SleijferDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Martijn LolkemaDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
John W M MartensDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
Maurice P H M JansenDepartment of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Room Be400, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands. m.p.h.m.jansen@erasmusmc.nl.ORCID http://orcid.org/0000-0003-1258-9804
Erasmus MC Cancer Institute · NLUniversity of Catania · IT

Funding

KWF Kankerbestrijding EMCR2014-6340
6 · The paper itself

Abstract

backgroundExtracellular vesicles (EVs) are actively secreted by cells into body fluids and contain nucleic acids of the cells they originate from. The goal of this study was to detect circulating tumor-derived EVs (ctEVs) by mutant mRNA transcripts (EV-RNA) in plasma of patients with solid cancers and compare the occurrence of ctEVs with circulating tumor DNA (ctDNA) in cell-free DNA (cfDNA).

methodsFor this purpose, blood from 20 patients and 15 healthy blood donors (HBDs) was collected in different preservation tubes (EDTA, BCT, CellSave) and processed into plasma within 24 h from venipuncture. EVs were isolated with the ExoEasy protocol from this plasma and from conditioned medium of 6 cancer cell lines and characterized according to MISEV2018-guidelines. RNA from EVs was isolated with the ExoRNeasy protocol and evaluated for transcript expression levels of 96 genes by RT-qPCR and genotyped by digital PCR.

resultsOur workflow applied on cell lines revealed a high concordance between cellular mRNA and EV-RNA in expression levels as well as variant allele frequencies for PIK3CA, KRAS and BRAF. Plasma CD9-positive EV and GAPDH EV-RNA levels were significantly different between the preservation tubes. The workflow detected only ctEVs with mutant transcripts in plasma of patients with high amounts (> 20%) of circulating tumor DNA (ctDNA). Expression profiling showed that the EVs from patients resemble healthy donors more than tumor cell lines supporting that most EVs are derived from healthy tissue.

conclusionsWe provide a workflow for ctEV detection by spin column-based generic isolation of EVs and PCR-based measurement of gene expression and mutant transcripts in EV-RNA derived from cancer patients' blood plasma. This workflow, however, detected tumor-specific mutations in blood less often in EV-RNA than in cfDNA.

Indexed as

Biomarkers, TumorCell Line, TumorCirculating Tumor DNACohort StudiesExtracellular VesiclesHumansMutationNeoplasmsRNA, MessengerBiomarkers, TumorCirculating Tumor DNARNA, MessengercfDNAdPCREV-RNALiquid biopsy

Identifiers

PMID33761899
PMCPMC7992353
OpenAlexW3106678231

What OpenQuestion holds

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Registered trials

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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.