Cited by 134Extracellular vesicles in diseaseAmino Acid Enzymes and MetabolismCellular transport and secretion

Extracellular vesicles are independent metabolic units with asparaginase activity

Open access
Iraci, Nunzio, Gaude, Edoardo, Leonardi, Tommaso, Costa, Ana S H, Cossetti, Chiara, Peruzzotti-Jametti, Luca, Bernstock, Joshua D, Saini, Harpreet K +8 more·2017·Nature Chemical Biology

Abstract

Extracellular vesicles (EVs) are membrane particles involved in the exchange of a broad range of bioactive molecules between cells and the microenvironment. Although it has been shown that cells can traffic metabolic enzymes via EVs, much remains to be elucidated with regard to their intrinsic metabolic activity. Accordingly, herein we assessed the ability of neural stem/progenitor cell (NSC)-derived EVs to consume and produce metabolites. Our metabolomics and functional analyses both revealed that EVs harbor L-asparaginase activity, catalyzed by the enzyme asparaginase-like protein 1 (Asrgl1). Critically, we show that Asrgl1 activity is selective for asparagine and is devoid of glutaminase activity. We found that mouse and human NSC EVs traffic Asrgl1. Our results demonstrate, for the first time, that NSC EVs function as independent metabolic units that are able to modify the concentrations of critical nutrients, with the potential to affect the physiology of their microenvironment.

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  1. [25]Zhao H Tumor microenvironment derived exosomes pleiotropically modulate cancer cell metabolism Elife 2016 5 e10250 26920219 PMC4841778

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Authors
Iraci, N., Gaude, E., Leonardi, T., Costa, A. S. H., Cossetti, C., Peruzzotti-Jametti, L., Bernstock, J. D., Saini, H. K., Gelati, M., Vescovi, A. L., Bastos, C., Faria, N., Occhipinti, L. G., Enright, A. J., Frezza, C., & Pluchino, S.
Affiliations
  • Wellcome/MRC Cambridge Stem Cell Institute (GB)
  • University of Cambridge (GB)
  • European Bioinformatics Institute (GB)
  • National Institutes of Health (US)
  • Casa Sollievo della Sofferenza (IT)
  • MRC Elsie Widdowson Laboratory (GB)
Corresponding author
  • Frezza, Christian
  • Pluchino, Stefano
Venue
Nature Chemical Biology
Published
2017-07-03
Volume
13
Issue
9
Pages
951-955
ISSN
  • 1552-4450 (ISSN-L)
  • 1552-4469
OpenAlex
W2726430797
Cited by
134
References
38
Citations by year
2026: 8 · 2025: 7 · 2024: 13 · 2023: 16 · 2022: 20 · 2021: 17 · 2020: 14 · 2019: 16 · 2018: 17 · 2017: 5
FWCI
5.81
Type
journal article
Language
en
Open access
Locations
  • Nature Chemical Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • BOA (University of Milano-Bicocca) (submittedVersion)
  • Cambridge University Engineering Department Publications Database (submittedVersion)
  • Apollo (University of Cambridge) (submittedVersion)
  • Apollo
Funders
  • Wellcome Trust
  • Medical Research Council (MR/K026682/1, MC_PC_12009, MR/R005699/1, MC_UU_12022/6)
  • Engineering and Physical Sciences Research Council (EP/K03099X/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
Keywords
extracellular vesicles, neural stem/progenitor cells, asparagine metabolism, glutaminase activity, nutrient exchange, microenvironment, metabolomics
MeSH terms
Extracellular Vesicles, Asparaginase, Models, Biological

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