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  3. Characterization and Proteome of Circulating Extracellular Vesicles as Potential Biomarkers for NASH.
 

Characterization and Proteome of Circulating Extracellular Vesicles as Potential Biomarkers for NASH.

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BORIS DOI
10.7892/boris.148192
Date of Publication
September 2020
Publication Type
Article
Division/Institute

Department for BioMed...

Author
Povero, Davide
Yamashita, Hirokazu
Ren, Wenhua
Subramanian, Mani G
Myers, Robert P
Eguchi, Akiko
Simonetto, Douglas A
Goodman, Zachary D
Harrison, Stephen A
Sanyal, Arun J
Bosch Genover, Jaime
Department for BioMedical Research, Hepatologie Forschung
Universitätsklinik für Viszerale Chirurgie und Medizin, Hepatologie
Feldstein, Ariel E
Subject(s)

600 - Technology::610...

Series
Hepatology communications
ISSN or ISBN (if monograph)
2471-254X
Publisher
Wiley
Language
English
Publisher DOI
10.1002/hep4.1556
PubMed ID
32923831
Description
Nonalcoholic fatty liver disease (NAFLD) is currently one of most common forms of chronic liver disease globally. NAFLD represents a wide spectrum of liver involvement from nonprogressive isolated steatosis to nonalcoholic steatohepatitis (NASH), characterized by liver necroinflammation and fibrosis and currently one of the top causes of end-stage liver disease and hepatocellular carcinoma. At present, there is a lack of effective treatments, and a central barrier to the development of therapies is the requirement for an invasive liver biopsy for diagnosis of NASH. Discovery of reliable, noninvasive biomarkers are urgently needed. In this study, we tested whether circulating extracellular vesicles (EVs), cell-derived small membrane-surrounded structures with a rich cargo of bioactive molecules, may serve as reliable noninvasive "liquid biopsies" for NASH diagnosis and assessment of disease severity. Total circulating EVs and hepatocyte-derived EVs were isolated by differential centrifugation and size-exclusion chromatography from serum samples of healthy individuals, patients with precirrhotic NASH, and patients with cirrhotic NASH. EVs were further characterized by flow cytometry, electron microscopy, western blotting, and dynamic light scattering assays before performing a proteomics analysis. Our findings suggest that levels of total and hepatocyte-derived EVs correlate with NASH clinical characteristics and disease severity. Additionally, using proteomics data, we developed understandable, powerful, and unique EV-based proteomic signatures for potential diagnosis of advanced NASH. Conclusion: Our study shows that the quantity and protein constituents of circulating EVs provide strong evidence for EV protein-based liquid biopsies for NAFLD/NASH diagnosis.
Handle
https://boris-portal.unibe.ch/handle/20.500.12422/45138
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HEP4-4-1263.pdfAdobe PDF2.01 MBAttribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0)publishedOpen
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