Agustin Enciso-Martinez, Caroline Løppke, Joyce J. Koene, Jade Ebbelaar, Meike van der Geest, Mandy Los, Emma P. E. M. Boerrigter, Robert Dagil, Tobias Gustavsson, Elena E. Vidal-Calvo, Ton G. van Leeuwen, Roman I. Koning, Nick van Es, Ali Salanti, Edwin van der Pol, Rienk Nieuwland, Mette Ø. Agerbæk, Peter ten Dijke
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Targeting Oncofoetal Chondroitin Sulphate Allows Identification of Tumour-Derived Extracellular Vesicles
Tumour-derived extracellular vesicles (tdEVs) are widely studied for their contribution to tumour progression and metastasis. These studies are hampered by the lack of specific markers to identify the tdEVs. Here, we show that oncofoetal chondroitin sulphate, a malignancy-associated glycosaminoglycan modification, is present on tdEVs and can be targeted by the malaria VAR2CSA protein or C9 antibody. Using a fluorescently labelled recombinant VAR2CSA protein, we identified EVs from cancer cells in vitro by super-resolution fluorescence microscopy and flow cytometry, as well as in a proof-of-concept study using plasma samples from pancreatic adenocarcinoma patients. Thus, the binding of VAR2CSA offers a tool to identify tdEVs, and can be used to explore their function and biomarker potential in cancer.
期刊介绍：
The Journal of Extracellular Vesicles is an open access research publication that focuses on extracellular vesicles, including microvesicles, exosomes, ectosomes, and apoptotic bodies. It serves as the official journal of the International Society for Extracellular Vesicles and aims to facilitate the exchange of data, ideas, and information pertaining to the chemistry, biology, and applications of extracellular vesicles. The journal covers various aspects such as the cellular and molecular mechanisms of extracellular vesicles biogenesis, technological advancements in their isolation, quantification, and characterization, the role and function of extracellular vesicles in biology, stem cell-derived extracellular vesicles and their biology, as well as the application of extracellular vesicles for pharmacological, immunological, or genetic therapies.
The Journal of Extracellular Vesicles is widely recognized and indexed by numerous services, including Biological Abstracts, BIOSIS Previews, Chemical Abstracts Service (CAS), Current Contents/Life Sciences, Directory of Open Access Journals (DOAJ), Journal Citation Reports/Science Edition, Google Scholar, ProQuest Natural Science Collection, ProQuest SciTech Collection, SciTech Premium Collection, PubMed Central/PubMed, Science Citation Index Expanded, ScienceOpen, and Scopus.
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