Exosome Rna Purification
Exosome Rna Purification - Related Videos
09:43
Isolation and Characterization of RNA-Containing Exosomes
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Cited by 515 •
2012
This paper demonstrates methods for the isolation, purification and detection of exosomes, as well as techniques for analysis of their molecular content. These methods are adaptable for exosome isolation from both cell culture media and biological fluids, and can beyond analysis of molecular content also be useful in functional studies.
10:45
Purification and microRNA Profiling of Exosomes Derived from Blood and Culture Media
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Cited by 45 •
2013
The presence of stable microRNAs (miRNAs) in exosomes has generated immense interest as a novel mode of intercellular communication, for their potential utility as biomarkers and as a route for therapeutic intervention. Here we demonstrate exosome purification from blood and culture media followed by quantitative PCR to identify miRNAs being transported.
11:09
Chromatin Isolation by RNA Purification (ChIRP)
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Cited by 380 •
2012
ChIRP is a novel and rapid technique to map genomic binding sites of long noncoding RNAs (lncRNAs). The method takes advantage of the specificity of anti-sense tiling oligonucleotides to allow the enumeration of lncRNA-bound genomic sites.
04:21
Exosome Isolation: A Technique to Separate Exosomes from the Plasma of Non-small Cell Lung Cancer Patients
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2023
The plasma-isolated exosomes can be used as a non-invasive and repeatable way for the detection and follow-up of the biomarkers for early detection and disease progression. This video describes the protocol for the separation of exosomes from the plasma samples of non-small cell lung cancer patients, which could be used for DNA and protein extractions.
02:30
Isolation of Small Regulatory RNA–Bound Bacterial Target RNA Using Affinity Purification
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2025
Source: Mercier, N., et. al., MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria. J. Vis. Exp. (2021)This video demonstrates the isolation of MS2-tagged small regulatory RNA (sRNA) bound to its bacterial target RNA using affinity purification with a maltose-binding protein (MBP)–MS2 coat protein fusion immobilized on amylose resin.
FAQs
Membrane disruption releases RNA that remains enclosed within the vesicle before purification. This step makes the molecular contents accessible to organic extraction or to silica- or magnetic-bead-based procedures. Without disrupting the lipid membrane, the workflow would not efficiently transfer exosomal RNA into the phase or binding system used for contaminant removal and final elution.
These approaches provide alternative ways to separate RNA from proteins and other contaminants after vesicle disruption. Organic extraction relies on phase-based separation, whereas silica- and magnetic-bead methods capture RNA on a solid support before washing and elution. The selected strategy therefore determines how the preparation is handled during purification, while both support recovery of RNA for downstream analysis.
Purified material can support analysis of microRNAs, messenger RNAs, and other noncoding transcripts associated with exosomes. Examining these different RNA classes can reveal distinct aspects of molecular signaling released by cells. Their presence in the preparation allows researchers to profile vesicle-associated transcripts and relate those profiles to cellular states or communication between cells.
The workflow begins by separating exosomes from a biofluid or cell culture preparation. Researchers then disrupt the vesicles' lipid membranes to release enclosed RNA, apply organic extraction or a silica- or magnetic-bead-based purification method, remove proteins and other contaminants, and elute the RNA. This sequence produces material suitable for profiling selected RNA populations.
Yes. The overview supports using either biofluids or cell cultures as starting materials, followed by separation of the exosome fraction. This flexibility allows investigators to study RNA released in different biological settings. Comparing preparations from these sources can help characterize cellular states and examine molecular signals associated with vesicle-mediated communication.
Purified exosomal RNA can be used to identify disease biomarkers, characterize cellular states, and investigate how vesicle-associated RNA influences recipient cells. Profiling microRNAs, messenger RNAs, and other noncoding transcripts provides molecular information about signals released by cells. These applications connect the purification workflow to disease-related studies and broader research on intercellular communication.