Evidence map›Paper›PMID 31209202›Full record

ArticleCell death & disease2019

Exosomes from CD99-deprived Ewing sarcoma cells reverse tumor malignancy by inhibiting cell migration and promoting neural differentiation.

Alessandra De Feo, Marika Sciandra, Manuela Ferracin, Federica Felicetti, Annalisa Astolfi, Ymera Pignochino, Piero Picci, Alessandra Carè, Katia Scotlandi

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

28 citing papers in PubMed, 42 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 4 institutions in 1 country.

Alessandra De FeoLaboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano 1/10, 40136, Bologna, Italy.
Marika SciandraLaboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano 1/10, 40136, Bologna, Italy.
Manuela FerracinDepartment of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, Bologna, Italy.ORCID http://orcid.org/0000-0002-1595-6887
Federica FelicettiDepartment of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.
Annalisa Astolfi"Giorgio Prodi" Cancer Research Center, University of Bologna, Bologna, Italy.
Ymera PignochinoSarcoma Unit, Medical Oncology, Candiolo Cancer Institute, FPO, IRCCS, Candiolo, Turin, Italy.
Piero PicciLaboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano 1/10, 40136, Bologna, Italy.
Alessandra CarèOncology Unit, Center for Gender Medicine, Istituto Superiore di Sanità, Rome, Italy. alessandra.care@iss.it.ORCID http://orcid.org/0000-0003-4106-3342
Katia ScotlandiLaboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano 1/10, 40136, Bologna, Italy. katia.scotlandi@ior.it.
Istituto Ortopedico Rizzoli · ITIstituto Superiore di Sanità · ITUniversity of Bologna · ITCandiolo Cancer Institute · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ewing sarcoma (EWS) is an aggressive mesenchymal tumor with unmet clinical need and significant social impacts on children, adolescents, and young adults. CD99, a hallmark surface molecule of EWS, participates in crucial biological processes including cell migration, differentiation, and death. EWS cells can release CD99 through exosomes (EXOs), specialized extracellular vesicles with major cell communication roles. Here we show that, as a consequence of CD99 silencing, EWS cells deliver exosomes with oncosuppressive functions that significantly reduce tumor aggressiveness. These CD99-lacking microvesicles modulate gene expression of the EWS-recipient cells, reduce proliferation and migration, in turn inducing a more-differentiated less-malignant phenotype. The most relevant effects were detected on the activator protein-1 signaling pathway whose regulation was found to be dependent on the specific cargo loaded in vesicles after CD99 shutdown. Investigation of the miRNA content of CD99-deprived EXOs identified miR-199a-3p as a key driver able to reverse EWS malignancy in experimental models as well as in clinical specimens. All together, our data provide evidence that the abrogation of CD99 in EWS tumor cells leads to produce and release EXOs capable to transfer their antineoplastic effects into the nearby tumor cells, suggesting a novel atypical role for these microvesicles in reversion of malignancy rather than in priming the soil for progression and metastatic seeding. This conceptually innovative approach might offer a new therapeutic opportunity to treat a tumor still refractory to most treatments.

Indexed as

Cell DifferentiationCell Movement12E7 AntigenCell Line, TumorCell ProliferationExosomesGene Expression Regulation, NeoplasticHumansKi-67 AntigenMicroRNAsModels, BiologicalNeuronsSarcoma, Ewing12E7 AntigenKi-67 AntigenMicroRNAsmirn199 microRNA, human

Identifiers

PMID31209202
PMCPMC6572819
OpenAlexW2951303744

What OpenQuestion holds

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LicenceCC BY
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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.