1. Isolation of Citrus lemon extracellular vesicles: Development and process control using capillary electrophoresis.
- Author
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Steć A, Chodkowska M, Kasprzyk-Pochopień J, Mielczarek P, Piekoszewski W, Lewczuk B, Płoska A, Kalinowski L, Wielgomas B, and Dziomba S
- Subjects
- Proteomics, Electrophoresis, Capillary, Citrus, Extracellular Vesicles, Exosomes
- Abstract
A new and scalable method for the isolation of extracellular vesicles (EV) from Citrus lemon juice samples was developed. The methodology included preliminary preconcentration of the sample using ultrafiltration (UF) followed by size-exclusion chromatography (SEC) purification and final preconcentration of the eluates. Transmission electron microscopy and proteomic analysis showed that isolates contained exosome-like vesicles, exocyst-positive organelle (EXPO), and microvesicles. The efficiency of certain isolation steps was evaluated with total protein content assay (bicinchoninic acid assay, BCA), nanoparticles tracking analysis (NTA), and capillary electrophoresis (CE). A good correlation between CE, BCA, and NTA results was shown. The application of CE enabled the detection of soluble contaminants, macromolecular aggregates, and vesicles' heterogeneity. The fluorescent staining of encapsulated nucleic acids was proposed for the identity confirmation of EV detected in CE. The study demonstrates the CE as a comprehensive tool for monitoring of the EV isolation process., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Aleksandra Stec, Leszek Kalinowski reports financial support was provided by Polish Ministry of Education and Science., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
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