1. Extracellular Vesicles from Follicular and Ampullary Fluid Isolated by Density Gradient Ultracentrifugation Improve Bovine Embryo Development and Quality
- Author
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Krishna Chaitanya Pavani, Osvaldo Américo Bogado Pascottini, An Hendrix, Hadi Atashi, Ann Van Soom, Mojtaba Kafi, Nima Azari Dolatabad, Annelies Raes, Anise Asaadi, Petra Van Damme, and Michael Hoelker
- Subjects
0301 basic medicine ,Size-exclusion chromatography ,Embryonic Development ,Oviducts ,Catalysis ,Article ,Inorganic Chemistry ,Andrology ,Embryo Culture Techniques ,lcsh:Chemistry ,03 medical and health sciences ,0302 clinical medicine ,Oogenesis ,medicine ,Centrifugation, Density Gradient ,Animals ,Humans ,Blastocyst ,Veterinary Sciences ,Physical and Theoretical Chemistry ,Molecular Biology ,Biology ,lcsh:QH301-705.5 ,Spectroscopy ,030219 obstetrics & reproductive medicine ,Chemistry ,Organic Chemistry ,Hair Cells, Ampulla ,Biology and Life Sciences ,Embryo ,General Medicine ,Oocyte ,Follicular fluid ,follicular fluid ,Computer Science Applications ,In vitro maturation ,030104 developmental biology ,medicine.anatomical_structure ,lcsh:Biology (General) ,lcsh:QD1-999 ,Culture Media, Conditioned ,ampullary oviductal fluid ,Oviduct ,Density gradient ultracentrifugation ,Cattle ,Female ,extracellular vesicles - Abstract
Extracellular vesicles (EVs) have been isolated from follicular (FF) and ampullary oviduct fluid (AOF), using different isolation methods. However, it is not clear whether different purification methods can affect the functionality of resulting EVs. Here, we compared two methods (OptiPrep&trade, density gradient ultracentrifugation (ODG UC) and single-step size exclusion chromatography (SEC) (qEV IZON&trade, single column)) for the isolation of EVs from bovine FF and AOF. Additionally, we evaluated whether the addition of EVs derived either by ODG UC or SEC from FF or AOF during oocyte maturation would yield extra benefits for embryo developmental competence. The characterization of EVs isolated using ODG UC or SEC from FF and AOF did not show any differences in terms of EV sizes (40&ndash, 400 nm) and concentrations (2.4 ±, 0.2 ×, 1012&minus, 1.8 ±, 1013 particles/mL). Blastocyst yield and quality was higher in groups supplemented with EVs isolated from FF and AOF by ODG UC, with higher total cell numbers and a lower apoptotic cell ratio compared with the other groups (p <, 0.05). Supplementing in vitro maturation media with EVs derived by ODG UC from AOF was beneficial for bovine embryo development and quality.
- Published
- 2021
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