Evidence map›Paper›PMID 34599227›Full record

ArticleScientific reports2021

Time-gated Raman spectroscopy and proteomics analyses of hypoxic and normoxic renal carcinoma extracellular vesicles.

Anatoliy Samoylenko, Martin Kögler, Artem Zhyvolozhnyi, Olha Makieieva, Geneviève Bart, Sampson S Andoh, Matthieu Roussey, Seppo J Vainio, Jussi Hiltunen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

16 citing papers in PubMed, 31 citations in OpenAlex.

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  6. Catalysis science & technology · 2023
    Article
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  9. Importance and implications of exosomes in nephrology and urology.Pflugers Archiv : European journal of physiology · 2023
    Review
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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 3 institutions in 1 country.

Anatoliy SamoylenkoLaboratory of Developmental Biology, Disease Networks Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu and Kvantum Institute, 90014, Oulu, Finland. anatoliy.samoylenko@oulu.fi.
Martin KöglerVTT Technical Research Centre of Finland, 90570, Oulu, Finland.
Artem ZhyvolozhnyiLaboratory of Developmental Biology, Disease Networks Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu and Kvantum Institute, 90014, Oulu, Finland.
Olha MakieievaLaboratory of Developmental Biology, Disease Networks Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu and Kvantum Institute, 90014, Oulu, Finland.
Geneviève BartLaboratory of Developmental Biology, Disease Networks Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu and Kvantum Institute, 90014, Oulu, Finland.
Sampson S AndohInstitute of Photonics, University of Eastern Finland, 80101, Joensuu, Finland.
Matthieu RousseyInstitute of Photonics, University of Eastern Finland, 80101, Joensuu, Finland.
Seppo J VainioLaboratory of Developmental Biology, Disease Networks Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu and Kvantum Institute, 90014, Oulu, Finland.
Jussi HiltunenVTT Technical Research Centre of Finland, 90570, Oulu, Finland.
University of Oulu · FIUniversity of Eastern Finland · FIVTT Technical Research Centre of Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extracellular vesicles (EVs) represent a diverse group of small membrane-encapsulated particles involved in cell-cell communication, but the technologies to characterize EVs are still limited. Hypoxia is a typical condition in solid tumors, and cancer-derived EVs support tumor growth and invasion of tissues by tumor cells. We found that exposure of renal adenocarcinoma cells to hypoxia induced EV secretion and led to notable changes in the EV protein cargo in comparison to normoxia. Proteomics analysis showed overrepresentation of proteins involved in adhesion, such as integrins, in hypoxic EV samples. We further assessed the efficacy of time-gated Raman spectroscopy (TG-RS) and surface-enhanced time-gated Raman spectroscopy (TG-SERS) to characterize EVs. While the conventional continuous wave excitation Raman spectroscopy did not provide a notable signal, prominent signals were obtained with the TG-RS that were further enhanced in the TG-SERS. The Raman signal showed characteristic changes in the amide regions due to alteration in the chemical bonds of the EV proteins. The results illustrate that the TG-RS and the TG-SERS are promising label free technologies to study cellular impact of external stimuli, such as oxygen deficiency, on EV production, as well as differences arising from distinct EV purification protocols.

Indexed as

ProteomeAnimalsCarcinoma, Renal CellCell Line, TumorExtracellular VesiclesHumansHypoxiaKidney NeoplasmsMiceSpectrum Analysis, RamanProteome

Identifiers

PMID34599227
PMCPMC8486794
OpenAlexW3204332566

What OpenQuestion holds

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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.