Nano-scavengers for blood biomarker discovery in ovarian carcinoma
Affiliation
Nanomedicine Lab, Faculty of Biology, Medicine & Health, AV Hill Building, The University of Manchester, Manchester,Issue Date
2020
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The development and implementation of biomarker-based screening tools for ovarian cancer require novel analytical platforms to enable the discovery of biomarker panels that will overcome the limitations associated with the clinically used CA-125.The systematic discovery of protein biomarkers directly from human plasma using proteomics remains extremely challenging, due to the wide concentration range of plasma proteins. Here, we describe the use of lipid-based nanoparticles (NPs) as an ‘omics’ enrichment tool to amplify cancer signals in the blood and to uncover disease specific signatures. We aimed to exploit the spontaneous interaction of clinically-used liposomes (Caelyx®) with plasma proteins, also known as’ protein corona’ formation, in order to facilitate the discovery of previously unreported differentially abundant molecules. Caelyx® liposomes were incubated with plasma samples obtained from advanced ovarian carcinoma patients and healthy donors and corona-coated liposomes were subsequently recovered. Comprehensive comparison between ‘healthy’ and ‘diseased’ corona samples by label-free proteomics resulted in the identification of multiple differentially abundant proteins. Moreover, immunoassay-based validation of selected proteins demonstrated the potential of nanoparticle-platform proposed to discover novel molecules with great diagnostic potential. This study proposes a nanoparticle-enabled workflow for plasma proteomic analysis in healthy and diseased states and paves the way for further work needed to discover and validate panels of novel biomarkers for disease diagnosis and monitoring.Citation
Hadjidemetriou M, Papafilippou L, Unwin RD, Rogan J, Clamp A, Kostarelos K. Nano-scavengers for blood biomarker discovery in ovarian carcinoma. Nano Today. 2020;34.Journal
Nano TodayDOI
10.1016/j.nantod.2020.100901Additional Links
https://dx.doi.org/10.1016/j.nantod.2020.100901Type
ArticleLanguage
enae974a485f413a2113503eed53cd6c53
10.1016/j.nantod.2020.100901