Proteomic profiling of extracellular vesicles allows for human breast cancer subtyping
Proteomics
0301 basic medicine
Principal Component Analysis
Proteome
Breast Neoplasms
Phosphoproteins
Article
Neoplasm Proteins
3. Good health
Extracellular Vesicles
03 medical and health sciences
SDG 3 - Good Health and Well-being
Cell Line, Tumor
Biomarkers, Tumor
Animals
Humans
Cattle
Female
DOI:
10.1038/s42003-019-0570-8
Publication Date:
2019-09-03T10:08:04Z
AUTHORS (8)
ABSTRACT
AbstractExtracellular vesicles (EVs) are a potential source of disease-associated biomarkers for diagnosis. In breast cancer, comprehensive analyses of EVs could yield robust and reliable subtype-specific biomarkers that are still critically needed to improve diagnostic routines and clinical outcome. Here, we show that proteome profiles of EVs secreted by different breast cancer cell lines are highly indicative of their respective molecular subtypes, even more so than the proteome changes within the cancer cells. Moreover, we detected molecular evidence for subtype-specific biological processes and molecular pathways, hyperphosphorylated receptors and kinases in connection with the disease, and compiled a set of protein signatures that closely reflect the associated clinical pathophysiology. These unique features revealed in our work, replicated in clinical material, collectively demonstrate the potential of secreted EVs to differentiate between breast cancer subtypes and show the prospect of their use as non-invasive liquid biopsies for diagnosis and management of breast cancer patients.
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