Ersity, Ghent, Belgium; 2Center for Health-related Genetics,Spectradyne LLC; 2Academic Health-related Centre, University of Amsterdam, Amsterdam, The Netherlands; 3Biomedical Engineering Physics and Vesicles Observation Centre, Academic Healthcare CentreFriday, May well 19,Introduction: Clinical applications of extracellular vesicle (EV) characterisation techniques demand each rapidly count prices to detect uncommon particles (e.g. tumour-derived EV in plasma) and sensitivity spanning the complete EV size variety ( 50000 nm). Conventional procedures fail to meet 1 or both metrics. Here, a speedy and commercially accessible on-chip technology, microfluidic resistive pulse sensing (MRPS), is validated within a head to head comparison against five established methods and made use of to characterise several different clinically relevant samples. MRPS is shown to become a fast and hugely sensitive approach with considerable prospective for use in clinical applications. Approaches: MRPS was initially validated employing two common samples: a mixture of reference beads and EV from human cell-free urine (n = 5). The samples have been analysed by MRPS (Spectradyne, nCS1) plus the benefits were compared to measurements of equivalent samples obtained by nanoparticle tracking evaluation (NTA, Nanosight NS-500), tunable resistive pulse sensing (TRPS, iZon qNano), flow cytometry (Apogee A50-Micro) and tunnelling electron microscopy (TEM, Philips CM10). Ultimately, the utility of MRPS in clinically-relevant applications wasevaluated making use of real-world EV samples: plasma, blood bank concentrates, and two tumour cell lines (LNCaP, PC-3). Final results: MRPS successfully characterised the requirements and mGluR3 medchemexpress revealed important differences among the real-world EV samples. Measured peak diameters within the bead mixture agreed with TEM to inside an typical of eight . A power law dependence of EV concentration c, on diameter d, of c d-4.two was observed inside the urinary vesicles over 5 orders of magnitude in concentration (on a size selection of 50000 nm), with outstanding agreement to TEM and TRPS measurements of similar samples. Measurements from the clinically-relevant EV samples demonstrated an average sample turnaround time under 10 minutes, and revealed other power law distributions and important, quantitative differences amongst samples. Conclusion: MRPS proved a highly effective strategy for measuring the size and concentration of EV in clinically relevant samples, demonstrating Amebae Molecular Weight accuracy higher than NTA and similar to TRPS with quicker measurement time. The performance and ease-of-use of this approach help its prospective for EV-based clinical applications.Scientific Plan ISEVRoom: Metropolitan Ballroom East Symposium Session 14 EVs in Cardiovascular Disorders Chairs: Chantal Boulanger and Mike Davis 1:30:00 p.m.OF14.The pericardial fluid exosomes as new cell-to-cell communicators worsening ischaemic heart disease in diabetes Jaimy Saif1, Sezin Aday1, Giovanni Biglino1, Kate Heesom1, Maryam Anwar2, Gianni Angelini1, Enrico Petretto3 and Costanza EmanueliUniversity of Bristol, Bristol, Uk; 2Imperial College London, London, United kingdom; 3Duke-NUS Medical School, NC, USA; 4Bristol Heart Institute, University of Bristol, Bristol, United KingdomCardiovascular illness is prevalent in type 2 diabetes mellitus (T2DM) and is associated with each macrovascular disease and microangiopathy, contributing to ischaemic heart illness(IHD). Functional research focussing on exosomes in human biological fluids are essential to investigate the relevance of ex.