Isolation of extracellular vesicles (EVs) from biological fluid samples
US11484816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jan 27, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/262
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to compositions and methods for isolating extracellular vesicles (EVs) from a biological fluid sample. The compositions and methods of the invention are based on the combination of a polycation with an extracellular matrix forming polymer. Extracellular vesicles (EVs) are isolated from biological fluids such as blood, serum, plasma, saliva, urine or cerebrospinal fluid, or from the conditioned medium of a cell culture, such as an adult stem cell culture. The use of the isolation methods and compositions of the invention results in a higher EVs recovery, enrichment in exosomes, simplicity, cost-effectiveness, and in the isolation of EVs that retain their biological activities in vitro.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.