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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Separation protocol	First author	Year	EV-METRIC
	EV210246	1/2	Homo sapiens	Blood plasma	(d)(U)C	Menck K	2017	33%
Study summary Full title Isolation and Characterization of Microvesicles from Peripheral Blood. All authors Menck K, Bleckmann A, Schulz M, Ries L, Binder C Journal J Vis Exp Abstract The release of extracellular vesicles (EVs) including small endosomal-derived exosomes (Exos, diamet (show more...)The release of extracellular vesicles (EVs) including small endosomal-derived exosomes (Exos, diameter < 100 nm) and large plasma membrane-derived microvesicles (MVs, diameter > 100 nm) is a fundamental cellular process that occurs in all living cells. These vesicles transport proteins, lipids and nucleic acids specific for their cell of origin and in vitro studies have highlighted their importance as mediators of intercellular communication. EVs have been successfully isolated from various body fluids and especially EVs in blood have been identified as promising biomarkers for cancer or infectious diseases. In order to allow the study of MV subpopulations in blood, we present a protocol for the standardized isolation and characterization of MVs from peripheral blood samples. MVs are pelleted from EDTA-anticoagulated plasma samples by differential centrifugation and typically possess a diameter of 100 - 600 nm. Due to their larger size, they can easily be studied by flow cytometry, a technique that is routinely used in clinical diagnostics and available in most laboratories. Several examples for quality control assays of the isolated MVs will be given and markers that can be used for the discrimination of different MV subpopulations in blood will be presented. (hide) EV-METRIC 33% (65th percentile of all experiments on the same sample type) Reported Not reported Not applicable EV-enriched proteins Protein analysis: analysis of three or more EV-enriched proteins non EV-enriched protein Protein analysis: assessment of a non-EV-enriched protein qualitative and quantitative analysis Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected. electron microscopy images Particle analysis: inclusion of a widefield and close-up electron microscopy image density gradient Separation method: density gradient, at least as validation of results attributed to EVs EV density Separation method: reporting of obtained EV density ultracentrifugation specifics Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps antibody specifics Protein analysis: antibody clone/reference number and dilution lysate preparation Protein analysis: lysis buffer composition Study data Sample type Blood plasma Sample origin Control condition Focus vesicles (shedding) microvesicle Separation protocol Separation protocol Gives a short, non-chronological overview of the different steps of the separation protocol. dUC = (Differential) (ultra)centrifugation DG = density gradient UF = ultrafiltration SEC = size-exclusion chromatography IAF = immuno-affinity capture (Differential) (ultra)centrifugation Protein markers EV: CD62/ CD45/ Tubulin/ CD235a/ CD9/ CD81 non-EV: None Proteomics no Show all info Study aim Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Blood plasma Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Between 10,000 g and 50,000 g Pelleting performed Yes Pelleting: time(min) 35 Pelleting: rotor type Not specified Pelleting: speed (g) 14000 Characterization: Protein analysis Protein Concentration Method Lowry-based assay Western Blot Antibody details provided? Yes Antibody dilution provided? Yes Lysis buffer provided? Yes Detected EV-associated proteins CD9/ Tubulin/ CD81 Flow cytometry Type of Flow cytometry Not specified Calibration bead size Not specified Antibody details provided? No Detected EV-associated proteins CD62/ CD45/ CD235a Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Mean Reported size (nm) 201 EV concentration Yes Particle yield as number of particles per milliliter of starting sampl: 5.00e+0 EM EM-type Transmission-EM Image type Close-up

	EV210246	2/2	Homo sapiens	Blood plasma	(d)(U)C	Menck K	2017	22%
Study summary Full title Isolation and Characterization of Microvesicles from Peripheral Blood. All authors Menck K, Bleckmann A, Schulz M, Ries L, Binder C Journal J Vis Exp Abstract The release of extracellular vesicles (EVs) including small endosomal-derived exosomes (Exos, diamet (show more...)The release of extracellular vesicles (EVs) including small endosomal-derived exosomes (Exos, diameter < 100 nm) and large plasma membrane-derived microvesicles (MVs, diameter > 100 nm) is a fundamental cellular process that occurs in all living cells. These vesicles transport proteins, lipids and nucleic acids specific for their cell of origin and in vitro studies have highlighted their importance as mediators of intercellular communication. EVs have been successfully isolated from various body fluids and especially EVs in blood have been identified as promising biomarkers for cancer or infectious diseases. In order to allow the study of MV subpopulations in blood, we present a protocol for the standardized isolation and characterization of MVs from peripheral blood samples. MVs are pelleted from EDTA-anticoagulated plasma samples by differential centrifugation and typically possess a diameter of 100 - 600 nm. Due to their larger size, they can easily be studied by flow cytometry, a technique that is routinely used in clinical diagnostics and available in most laboratories. Several examples for quality control assays of the isolated MVs will be given and markers that can be used for the discrimination of different MV subpopulations in blood will be presented. (hide) EV-METRIC 22% (50th percentile of all experiments on the same sample type) Reported Not reported Not applicable EV-enriched proteins Protein analysis: analysis of three or more EV-enriched proteins non EV-enriched protein Protein analysis: assessment of a non-EV-enriched protein qualitative and quantitative analysis Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected. electron microscopy images Particle analysis: inclusion of a widefield and close-up electron microscopy image density gradient Separation method: density gradient, at least as validation of results attributed to EVs EV density Separation method: reporting of obtained EV density ultracentrifugation specifics Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps antibody specifics Protein analysis: antibody clone/reference number and dilution lysate preparation Protein analysis: lysis buffer composition Study data Sample type Blood plasma Sample origin Control condition Focus vesicles exosome Separation protocol Separation protocol Gives a short, non-chronological overview of the different steps of the separation protocol. dUC = (Differential) (ultra)centrifugation DG = density gradient UF = ultrafiltration SEC = size-exclusion chromatography IAF = immuno-affinity capture (Differential) (ultra)centrifugation Protein markers EV: CD9/ CD81/ tubulin non-EV: None Proteomics no Show all info Study aim Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Blood plasma Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Between 10,000 g and 50,000 g Between 100,000 g and 150,000 g Pelleting performed Yes Pelleting: time(min) 120 Pelleting: rotor type Not specified Pelleting: speed (g) 110000 Characterization: Protein analysis Protein Concentration Method Lowry-based assay Western Blot Antibody details provided? Yes Antibody dilution provided? Yes Lysis buffer provided? Yes Detected EV-associated proteins CD9/ CD81 Not detected EV-associated proteins Tubulin Characterization: Lipid analysis No Characterization: Particle analysis None

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EV-TRACK ID	EV210246
species	Homo sapiens
sample type	Blood plasma
condition	Control condition
separation protocol	dUC	dUC
vesicle related term	(shedding) microvesicle	exosome
Exp. nr.	1	2
EV-METRIC %	33	22