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- Javadi, J (författare)
Diagnostic and Prognostic Utility of the Extracellular Vesicles Subpopulations Present in Pleural Effusion
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
- 2021-10-29
- MDPI AG,2021
Nummerbeteckningar
- LIBRIS-ID:oai:prod.swepub.kib.ki.se:148316945
- http://kipublications.ki.se/Default.aspx?queryparsed=id:148316945URI
- https://doi.org/10.3390/biom11111606DOI
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- Språk:engelska
- Sammanfattning på:engelska
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Anmärkningar
- Extracellular vesicles (EVs), comprising exosomes, microvesicles, and apoptotic bodies, are released by all cells into the extracellular matrix and body fluids, where they play important roles in intercellular communication and matrix remodeling in various pathological conditions. Malignant pleural mesothelioma (MPM) is a primary tumor of mesothelial origin, predominantly related to asbestos exposure. The detection of MPM at an early stage and distinguishing it from benign conditions and metastatic adenocarcinomas (AD) is sometimes challenging. Pleural effusion is often the first available biological material and an ideal source for characterizing diagnostic and prognostic factors. Specific proteins have previously been identified as diagnostic markers in effusion, but it is not currently known whether these are associated with vesicles or released in soluble form. Here, we study and characterize tumor heterogeneity and extracellular vesicle diversity in pleural effusion as diagnostic or prognostic markers for MPM. We analyzed extracellular vesicles and soluble proteins from 27 pleural effusions, which were collected and processed at the department of pathology and cytology at Karolinska University Hospital, representing three different patient groups, MPM (n = 9), benign (n = 6), and AD (n = 12). The vesicles were fractionated into apoptotic bodies, microvesicles, and exosomes by differential centrifugation and characterized by nanoparticle tracking analysis and Western blotting. Multiplex bead-based flow cytometry analysis showed that exosomal markers were expressed differently on EVs present in different fractions. Further characterization of exosomes by a multiplex immunoassay (Luminex) showed that all soluble proteins studied were also present in exosomes, though the ratio of protein concentration present in supernatant versus exosomes varied. The proportion of Angiopoietin-1 present in exosomes was generally higher in benign compared to malignant samples. The corresponding ratios of Mesothelin, Galectin-1, Osteopontin, and VEGF were higher in MPM effusions compared to those in the benign group. These findings demonstrate that relevant diagnostic markers can be recovered from exosomes.
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Goergens, AKarolinska Institutet (författare)
- Vanky, H (författare)
- Gupta, DKarolinska Institutet (författare)
- Hjerpe, AKarolinska Institutet (författare)
- EL-Andaloussi, SKarolinska Institutet (författare)
- Hagey, DKarolinska Institutet (författare)
- Dobra, KKarolinska Institutet (författare)
- Karolinska Institutet (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Biomolecules: MDPI AG11:112218-273X
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- Javadi, J
- Goergens, A
- Vanky, H
- Gupta, D
- Hjerpe, A
- EL-Andaloussi, S
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- Hagey, D
- Dobra, K
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