Proteomics

Dataset Information

0

A comparison of blood plasma exosome enrichment strategies for proteomic analysis.


ABSTRACT: Proteomic analysis of exosomes (EXs) poses a significant challenge. A ‘gold-standard’ method for plasma EX enrichment for downstream proteomic analysis is yet to be established. Methods were evaluated for their capacity to successfully isolate and enrich EXs from plasma, minimise the presence of highly abundant plasma proteins, and result in the optimum representation of exosomal (EXal) proteins by liquid chromatography tandem mass spectrometry. Plasma from four cattle (Bos taurus) of similar physical attributes and genetics were used. Three methods of EX enrichment were utilised: ultracentrifugation (UC), size-exclusion chromatography (SEC), and ultrafiltration (UF). These methods were combined to create four groups for methodological evaluation: UC+SEC, UC+SEC+UF, SEC+UC and SEC+UF. The UC+SEC method yielded the highest number of protein IDs.

INSTRUMENT(S): TripleTOF 6600

ORGANISM(S): Bos Taurus (bovine)

TISSUE(S): Blood Plasma

SUBMITTER: Natalie Turner  

LAB HEAD: Pawel Sadowski

PROVIDER: PXD032313 | Pride | 2022-08-12

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
20210423D_DDA_NPT35.group Other
20210423D_DDA_NPT35.wiff Wiff
20210423D_DDA_NPT35.wiff.scan Wiff
20210423D_DDA_NPT36.group Other
20210423D_DDA_NPT36.wiff Wiff
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Publications

A Comparison of Blood Plasma Small Extracellular Vesicle Enrichment Strategies for Proteomic Analysis.

Turner Natalie P NP   Abeysinghe Pevindu P   Kwan Cheung Keith A KA   Vaswani Kanchan K   Logan Jayden J   Sadowski Pawel P   Mitchell Murray D MD  

Proteomes 20220601 2


Proteomic analysis of small extracellular vesicles (sEVs) poses a significant challenge. A 'gold-standard' method for plasma sEV enrichment for downstream proteomic analysis is yet to be established. Methods were evaluated for their capacity to successfully isolate and enrich sEVs from plasma, minimise the presence of highly abundant plasma proteins, and result in the optimum representation of sEV proteins by liquid chromatography tandem mass spectrometry. Plasma from four cattle (Bos taurus) of  ...[more]

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