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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Separation protocol	First author	Year	EV-METRIC
	EV230588	1/2	Homo sapiens	human umbilical cord mesenchymal stromal cells	(d)(U)C Filtration SEC (non-commercial) Tangential flow filtration	Forteza-Genestra MA	2023	75%
Study summary Full title Comparative effect of platelet- and mesenchymal stromal cell-derived extracellular vesicles on human cartilage explants using an ex vivo inflammatory osteoarthritis model. All authors Forteza-Genestra MA, Antich-Rosselló M, Ramis-Munar G, Calvo J, Gayà A, Monjo M, Ramis JM Journal Bone Joint Res Abstract Extracellular vesicles (EVs) are nanoparticles secreted by all cells, enriched in proteins, lipids, (show more...)Extracellular vesicles (EVs) are nanoparticles secreted by all cells, enriched in proteins, lipids, and nucleic acids related to cell-to-cell communication and vital components of cell-based therapies. Mesenchymal stromal cell (MSC)-derived EVs have been studied as an alternative for osteoarthritis (OA) treatment. However, their clinical translation is hindered by industrial and regulatory challenges. In contrast, platelet-derived EVs might reach clinics faster since platelet concentrates, such as platelet lysates (PL), are already used in therapeutics. Hence, we aimed to test the therapeutic potential of PL-derived extracellular vesicles (pEVs) as a new treatment for OA, which is a degenerative joint disease of articular cartilage and does not have any curative or regenerative treatment, by comparing its effects to those of human umbilical cord MSC-derived EVs (cEVs) on an ex vivo OA-induced model using human cartilage explants. (hide) EV-METRIC 75% (96th 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 Cell culture supernatant Sample origin Control condition Focus vesicles extracellular vesicle 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 Filtration Size-exclusion chromatography (non-commercial) Tangential flow filtration Protein markers EV: Alix/ CD9/ CD63/ CD81/ HSC70 non-EV: CytC/ ApoA1 Proteomics no Show all info Study aim Function Sample Species Homo sapiens Sample Type Cell culture supernatant EV-producing cells human umbilical cord mesenchymal stromal cells EV-harvesting Medium Serum free medium 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 No Filtration steps 0.2 or 0.22 ?m Size-exclusion chromatography Total column volume (mL) 120 Sample volume/column (mL) 5 Resin type Sephacryl S-400 HR Other Name other separation method Tangential flow filtration Characterization: Protein analysis Protein Concentration Method Absorbance at 280 nm Western Blot Detected EV-associated proteins Alix/ CD9/ CD63/ CD81 Not detected EV-associated proteins HSC70 Not detected contaminants CytC/ ApoA1 Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Mean Reported size (nm) 150 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field

	EV230588	2/2	Homo sapiens	Platelet lysate	(d)(U)C Filtration SEC (non-commercial)	Forteza-Genestra MA	2023	75%
Study summary Full title Comparative effect of platelet- and mesenchymal stromal cell-derived extracellular vesicles on human cartilage explants using an ex vivo inflammatory osteoarthritis model. All authors Forteza-Genestra MA, Antich-Rosselló M, Ramis-Munar G, Calvo J, Gayà A, Monjo M, Ramis JM Journal Bone Joint Res Abstract Extracellular vesicles (EVs) are nanoparticles secreted by all cells, enriched in proteins, lipids, (show more...)Extracellular vesicles (EVs) are nanoparticles secreted by all cells, enriched in proteins, lipids, and nucleic acids related to cell-to-cell communication and vital components of cell-based therapies. Mesenchymal stromal cell (MSC)-derived EVs have been studied as an alternative for osteoarthritis (OA) treatment. However, their clinical translation is hindered by industrial and regulatory challenges. In contrast, platelet-derived EVs might reach clinics faster since platelet concentrates, such as platelet lysates (PL), are already used in therapeutics. Hence, we aimed to test the therapeutic potential of PL-derived extracellular vesicles (pEVs) as a new treatment for OA, which is a degenerative joint disease of articular cartilage and does not have any curative or regenerative treatment, by comparing its effects to those of human umbilical cord MSC-derived EVs (cEVs) on an ex vivo OA-induced model using human cartilage explants. (hide) EV-METRIC 75% (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 Platelet lysate Sample origin Control condition Focus vesicles extracellular vesicle 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 Filtration Size-exclusion chromatography (non-commercial) Protein markers EV: CD9/ CD63/ CD81/ HSC70 non-EV: CytC/ ApoA1 Proteomics no Show all info Study aim Function Sample Species Homo sapiens Sample Type Platelet lysate Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Pelleting performed No Filtration steps Larger than 0.45 ?m Size-exclusion chromatography Total column volume (mL) 120 Sample volume/column (mL) 5 Resin type Sephacryl S-400 HR Characterization: Protein analysis Protein Concentration Method Absorbance at 280 nm Western Blot Detected EV-associated proteins CD9/ CD63 Not detected EV-associated proteins CD81/ HSC70 Not detected contaminants CytC/ ApoA1 Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Mean Reported size (nm) 121 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field

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EV-TRACK ID	EV230588
species	Homo sapiens
sample type	Cell culture	Platelet lysate
cell type	human umbilical cord mesenchymal stromal cells	NA
medium	Serum free medium	NA
condition	Control condition	Control condition
separation protocol	dUC/ Filtration/ Size-exclusion chromatography (non-commercial)/ Tangential flow filtration	dUC/ Filtration/ Size-exclusion chromatography (non-commercial)
Exp. nr.	1	2
EV-METRIC %	75	75