Evidence map›Paper›PMID 33915936›Full record

ArticleMetabolites2021

Metabolomic Analysis of Small Extracellular Vesicles Derived from Pancreatic Cancer Cells Cultured under Normoxia and Hypoxia.

Ryosuke Hayasaka, Sho Tabata, Masako Hasebe, Satsuki Ikeda, Sumiko Ohnuma, Masaru Mori, Tomoyoshi Soga, Masaru Tomita, Akiyoshi Hirayama

Open access · goldAbstract read
In one paragraph

Article in Metabolites, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Small extracellular vesicles (sEVs) in pancreatic cancer progression and diagnosis.Journal of controlled release : official journal of the Controlled Release Society · 2025
    Review
  5. Article
  6. Review
  7. Review
  8. Recent Analytical Methodologies in Lipid Analysis.International journal of molecular sciences · 2024
    Review
  9. Metabolic features of tumor-derived extracellular vesicles: challenges and opportunities.Extracellular vesicles and circulating nucleic acids · 2024
    Review
  10. Isolation and characterization of extracellular vesicles and future directions in diagnosis and therapy.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2023
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
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 1 institution in 1 country.

Ryosuke HayasakaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.ORCID 0000-0002-8340-0784
Sho TabataInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.ORCID 0000-0001-8956-9241
Masako HasebeInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
Satsuki IkedaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
Sumiko OhnumaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
Masaru MoriInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
Tomoyoshi SogaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
Masaru TomitaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
Akiyoshi HirayamaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.ORCID 0000-0002-0440-6820
Keio University · JP

Funding

Japan Agency for Medical Research and Development 18ak0101043h0004Japan Agency for Medical Research and Development 18ak0101043h0104Japan Agency for Medical Research and Development 18ak0101043s1404Japan Society for the Promotion of Science JP18H04804Japan Society for the Promotion of Science JP18K08219Japan Society for the Promotion of Science JP20J12816
6 · The paper itself

Abstract

Extracellular vesicles (EVs) released from cancer cells contribute to various malignant phenotypes of cancer, including metastasis, cachexia, and angiogenesis. Although DNA, mRNAs, miRNAs, and proteins contained in EVs have been extensively studied, the function of metabolites in EVs remains unclear. In this study, we performed a comprehensive metabolomic analysis of pancreatic cancer cells, PANC-1, cultured under different oxygen concentrations, and small EVs (sEVs) released from them, considering the fact that hypoxia contributes to the malignant behavior of cells in pancreatic cancer, which is a poorly diagnosed cancer. sEVs were collected by ultracentrifugation, and hydrophilic metabolites were analyzed using capillary ion chromatography-mass spectrometry and liquid chromatography-mass spectrometry, and lipids were analyzed by supercritical fluid chromatography-tandem mass spectrometry. A total of 140 hydrophilic metabolites and 494 lipids were detected in sEVs, and their profiles were different from those in cells. In addition, the metabolomic profile of sEVs was observed to change under hypoxic stress, and an increase in metabolites involved in angiogenesis was also detected. We reveal the hallmark of the metabolites contained in sEVs and the effect of tumor hypoxia on their profiles, which may help in understanding EV-mediated cancer malignancy.

Indexed as

capillary ion chromatography-mass spectrometryhypoxialiquid chromatography-mass spectrometrymetabolome analysispancreatic cancersmall extracellular vesiclessupercritical fluid chromatography-tandem mass spectrometry

Identifiers

PMID33915936
PMCPMC8066639
OpenAlexW3145429172

What OpenQuestion holds

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LicenceCC BY
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.