A Rapid and Non-destructive Magnetic Beads-based Exosome Isolation and Enrichment MethodMonday, 24 March 2014 at 14:30 Add to Calendar ▼2014-03-24 14:30:002014-03-24 15:30:00Europe/LondonA Rapid and Non-destructive Magnetic Beads-based Exosome Isolation and Enrichment MethodCirculating Biomarkers 2014 in Boston, Massachusetts, USABoston, Massachusetts, USASELECTBIOenquiries@selectbiosciences.com In order to isolate exosomes from various body fluids and cell culture supernatants, we have successfully developed ExoCap, which utilizes a magnetic beads based isolation method. ExoCap consists of magnetic particles coupled with antibodies that recognize antigens on the exosome surface, an irrigation solution, and a reagent that releases the captured exosomes for analysis. The antibodies against CD9, CD63, CD81, and EpCAM were specifically selected for this kit. ExoCap can separate easily exosomes within 30 minutes, without ultracentrifuge or any special equipment. A sample amount of 0.1mL is sufficient. In addition, it is an animal free system which is superior to other methods for mass analysis. Moreover, this method enables non-destructive purification of exosomes. To confirm exosomal isolation from diverse body fluids (such as human serum, plasma, urine) and cell culture media, exosomes were examined by western blot, particle size distribution measurement, and scanning transmission electron microscopy (TEM). Exosomes isolated by ExoCap had a lipid bilayer membrane, showed a particle size distribution around 100nm, and expressed tetraspanin molecules. |