ArticleIranian biomedical journal2024
Polyethylene Glycol -Mediated Exosome Isolation: A Method for Exosomal RNA Analysis.
Article in Iranian biomedical journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
5 authors at 2 institutions in 1 country.
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Abstract
Background: : Exosomal RNAs (ExoRNAs) offer valuable insights into their cellular origin. ExoRNA studies were faced with challenges in obtaining sufficient amounts of high-quality RNA. Herein, we aimed to compare three traditional exosome isolation methods to introduce an appropriate strategy to extract RNA from cancer-derived exosomes for further RNA analysis. Methods: Exosomes were isolated through ultracentrifugation, precipitation kit, and size exclusion column chromatography, and then characterized by dynamic light scattering and transmission electron microscopy, followed by extracting total RNA. The quality and quantity of the extracted RNAs were assessed by a NanoDrop and 2.5% agarose gel electrophoresis. Results: Extracted exosomes displayed a similar range of size and morphology. We found that polyethylene glycol-precipitation method resulted in a higher RNA yield with a 260/280 ratio of 1.9. The obtained exoRNA appeared as a smear in the agarose gel, indicative of small exoRNAs. Conclusion: We provide researchers a suitable approach to isolate exosomes based on yield and purity of exoRNA.
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