UrkatIntroduction: Mesenchymal stromal cells (MSCs) are a promising cell supply for cell-based therapies as they exhibit a potent immunomodulatory action in various ailments. It has been reported that MSC secretome is responsible for their immunomodulatory potential. Toll-like Receptor 1 Proteins Purity & Documentation Especially, MSC-derived extracellular vesicles (EVs) have been shown to play a key part in mediating the immunomodulatory impact of MSC. Clinical translation of MSC-EV therapies requires optimised protocols for isolation, characterisation and functional evaluation. This work aims to create functional assays to assess the immunomodulatory prospective of MSC-EV isolated from diverse MSC donors. Procedures: EVs were harvested from bone marrow MSC and EV isolation was performed by series of ultracentrifugation. EVs had been visualised by cryo-electron microscopy, size distribution and concentration had been evaluated by nanoparticle tracking analysis and purity by MicroBCA. For the monocyte potency assay, EVs from diverse MSC donors were incubated with lipopolysaccharide-treated THP-1 cells and secreted inflammation-related cytokines had been analysed. For the endothelial potency assay, TNF–treated HUVECs (to induce inflammatory strain) were co-incubated with MSC-derived EVs. The secretion of inflammatory cytokines and expression of surface markers have been assessed. Benefits: Our EV characterisation evaluation indicates consistent EV isolation and purity from different MSC donors. The monocyte and endothelial cell-based assays developed were in a position to distinguish among distinct MSC-EV donors primarily based on their immunomodulatory properties. Conclusion: These functional assays are valuable tools that may be employed to choose potent MSC-EV donors towards the evaluation of their therapeutic possible in in-vitro and in vivo disease models.Scientific System ISEVSatellite Event Meet the National and International Societies Space: Metropolitan Ballroom West and Centre6:30:00 p.m.Friday, Might 19,Scientific Program ISEV2017 Friday, May well 19, 2017 Meet the Specialist Morning Session: Space: Metropolitan Ballroom West and Centre Session I: EV-Mediated Functional Delivery of Protein Nucleic Acids Speakers: Janusz Rak and Raghu Kalluri Moderator: Lucia Languino 7:45:45 a.m. Room: Metropolitan Ballroom East Session II: EV Lipids and Lipidomics Speakers: Hang Hubert Yin and Alicia Llorente Moderator: Yong Song Gho Room: Harbour Ballroom Session III: Rigor and Reproducibility in EV Analyses Speakers: An Hendrix and Andreas Moller Moderator: Chris OTUB2 Proteins Formulation Gardiner7:45:45 a.m.7:45:45 a.m.Scientific Program ISEVOral Sessions Room: Metropolitan Ballroom West and Centre Symposium Session 10 Novel Developments in EV Isolation Chair: Alain Brisson and Dylan Burger 9:000:00 a.m.OF10.Study of exosome therapeutic and diagnostic roles by means of microfluidic on-demand evaluation and harvesting Mei He1 and Yong ZengKansas State University, Terry C. Johnson Cancer Investigation Center, KS, USA; 2University of Kansas, KS, USAThe obtaining of exosomes opens new opportunities for liquid biopsy of cancers, and establishing nature, non-toxic therapeutic delivery systems. Exosomes play important biological roles via transferring selectively enriched proteins, RNAs, and mitochondrial DNA, which presents distinctive opportunities for liquid biopsy analysis of cancers. Meanwhile, the nano-sized exosomes are very biocompatible with intrinsic payload and exhibit much stronger antigen loading flexibility, in comparison with other polymer nano-platforms. In spite in the substantial r.