What question did this study set out to answer?

To develop a low-volume extracellular vesicle isolation workflow that circumvents the sample loss associated with post-chromatography concentration steps in proteomics.

May 2, 2025Journal of Proteome ResearchOpen Access

Novel PPT+SEC Workflow for High-Sensitivity Extracellular Vesicle Proteomics from Cell Media

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Authors

ABAsia Botto CCChiara De Cesari NNNoa Ndimurwanko

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Overview

Methodological study demonstrates improved protein recovery and biomarker detection from cell media without post-isolation concentration, highlighting enhanced sensitivity for cancer diagnostics.

Key Points

To develop a low-volume extracellular vesicle isolation workflow that circumvents the sample loss associated with post-chromatography concentration steps in proteomics.
Developed a combined precipitation and size exclusion chromatography workflow yielding extracellular vesicles directly in an 80 μL volume suitable for proteomics.
Characterized isolated vesicles using transmission electron microscopy, Western blotting, and nanoparticle tracking analysis.
Benchmarked proteomic depth and pancreatic cancer biomarker recovery against an automated UHPLC-SEC platform.
The novel workflow captured 96 of the top 100 ExoCarta exosomal proteins, surpassing the 91 proteins identified via automated UHPLC-SEC.
Yielded superior detection sensitivity for established extracellular vesicle protein markers in pancreatic cancer cell lines.

Cite This Study

Botto et al. (2025) studied this question.

synapsesocial.com/papers/6aa25eff375ea2a2e2fdc996 https://doi.org/10.1021/acs.jproteome.5c00082

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May 2, 2025Journal of Proteome ResearchOpen Access

Novel PPT+SEC Workflow for High-Sensitivity Extracellular Vesicle Proteomics from Cell Media

View Full Paper

Ask AI

Bookmark

Authors

ABAsia Botto CCChiara De Cesari NNNoa Ndimurwanko

Discussion

Member takes

Overview

Methodological study demonstrates improved protein recovery and biomarker detection from cell media without post-isolation concentration, highlighting enhanced sensitivity for cancer diagnostics.

Key Points

To develop a low-volume extracellular vesicle isolation workflow that circumvents the sample loss associated with post-chromatography concentration steps in proteomics.
Developed a combined precipitation and size exclusion chromatography workflow yielding extracellular vesicles directly in an 80 μL volume suitable for proteomics.
Characterized isolated vesicles using transmission electron microscopy, Western blotting, and nanoparticle tracking analysis.
Benchmarked proteomic depth and pancreatic cancer biomarker recovery against an automated UHPLC-SEC platform.
The novel workflow captured 96 of the top 100 ExoCarta exosomal proteins, surpassing the 91 proteins identified via automated UHPLC-SEC.
Yielded superior detection sensitivity for established extracellular vesicle protein markers in pancreatic cancer cell lines.

Cite This Study

Botto et al. (2025) studied this question.

synapsesocial.com/papers/6aa25eff375ea2a2e2fdc996 https://doi.org/10.1021/acs.jproteome.5c00082

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