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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Separation protocol	First author	Year	EV-METRIC
	EV220111	1/2	Homo sapiens	Endothelial colony-forming cells	(d)(U)C Filtration	Liu W	2018	44%
Study summary Full title Distinct Anti-Fibrotic Effects of Exosomes Derived from Endothelial Colony-Forming Cells Cultured Under Normoxia and Hypoxia. All authors Liu W, Zhang H, Mai J, Chen Z, Huang T, Wang S, Chen Y, Wang J Journal Med Sci Monit Abstract BACKGROUND The therapeutic potential of endothelial colony-forming cells (ECFCs) may be impaired in (show more...)BACKGROUND The therapeutic potential of endothelial colony-forming cells (ECFCs) may be impaired in an ischemic environment. Direct injection of ECFCs is not an effective method of rescuing the ischemic heart, but exosomes derived from these cells may be a promising therapeutic tool. However, exosomes produced under normoxia and hypoxia may not be identical. Therefore, the purpose of this study was to investigate alterations in the anti-fibrotic effects of hypoxia-treated ECFC-derived exosomes and the underlying mechanism involved. MATERIAL AND METHODS ECFCs were isolated from peripheral blood and exosomes were collected from ECFCs treated with normoxia (nor-exo) or hypoxia (hyp-exo). Effects of exosomes on cardiac fibroblast activation were evaluated in vitro. MicroRNAs (miRNAs) inside the exosomes were extracted and compared using next-generation RNA sequencing. Predicted target mRNAs of miR-10b-5p were validated using a dual-luciferase reporter gene assay method. RESULTS Nor-exo significantly ameliorated cardiac fibroblast activation in vitro. These effects were attenuated in the hyp-exo-treated group. miR-10b-5p was enriched in nor-exo but not in hyp-exo. Dual-luciferase reporter gene assay found that both SMAD-specific E3 ubiquitin protein ligase 1 (Smurf1) and histone deacetylase 4 (HDAC4) mRNAs were inhibited by miR-10b-5p. The expression of neutral sphingomyelinase 2 (N-SMase2) was decreased in hypoxia ECFCs, and this result was consistent with the changes in miR-10b-5p in hyp-exo. CONCLUSIONS Due to a reduction of miR-10b-5p, which targets the fibrotic genes Smurf1 and HDAC4, the anti-fibrotic effects of hyp-exo were abolished. (hide) EV-METRIC 44% (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 Endothelial colony-forming cells Sample origin Normoxia 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 Filtration Protein markers EV: CD9/ Alix/ CD63 non-EV: Calnexin Proteomics no Show all info Study aim Function Sample Species Homo sapiens Sample Type Endothelial colony-forming cells Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 10,000 g and 50,000 g Between 100,000 g and 150,000 g Pelleting performed Yes Pelleting: rotor type SW 41 Ti Pelleting: speed (g) 123000 Wash: time (min) 70 Wash: Rotor Type SW 41 Ti Wash: speed (g) 123000 Filtration steps 0.22µm or 0.2µm Characterization: Protein analysis Protein Concentration Method microBCA Western Blot Antibody details provided? Yes Detected EV-associated proteins CD9/ Alix/ CD63 Not detected contaminants Calnexin Characterization: RNA analysis RNA analysis Type (RT)(q)PCR Database No Proteinase treatment No RNAse treatment No Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Modus Reported size (nm) 110 EV concentration Yes EM EM-type Transmission-EM Image type Close-up Report type Not Reported EV-concentration No

	EV220111	2/2	Homo sapiens	Endothelial colony-forming cells	(d)(U)C Filtration	Liu W	2018	44%
Study summary Full title Distinct Anti-Fibrotic Effects of Exosomes Derived from Endothelial Colony-Forming Cells Cultured Under Normoxia and Hypoxia. All authors Liu W, Zhang H, Mai J, Chen Z, Huang T, Wang S, Chen Y, Wang J Journal Med Sci Monit Abstract BACKGROUND The therapeutic potential of endothelial colony-forming cells (ECFCs) may be impaired in (show more...)BACKGROUND The therapeutic potential of endothelial colony-forming cells (ECFCs) may be impaired in an ischemic environment. Direct injection of ECFCs is not an effective method of rescuing the ischemic heart, but exosomes derived from these cells may be a promising therapeutic tool. However, exosomes produced under normoxia and hypoxia may not be identical. Therefore, the purpose of this study was to investigate alterations in the anti-fibrotic effects of hypoxia-treated ECFC-derived exosomes and the underlying mechanism involved. MATERIAL AND METHODS ECFCs were isolated from peripheral blood and exosomes were collected from ECFCs treated with normoxia (nor-exo) or hypoxia (hyp-exo). Effects of exosomes on cardiac fibroblast activation were evaluated in vitro. MicroRNAs (miRNAs) inside the exosomes were extracted and compared using next-generation RNA sequencing. Predicted target mRNAs of miR-10b-5p were validated using a dual-luciferase reporter gene assay method. RESULTS Nor-exo significantly ameliorated cardiac fibroblast activation in vitro. These effects were attenuated in the hyp-exo-treated group. miR-10b-5p was enriched in nor-exo but not in hyp-exo. Dual-luciferase reporter gene assay found that both SMAD-specific E3 ubiquitin protein ligase 1 (Smurf1) and histone deacetylase 4 (HDAC4) mRNAs were inhibited by miR-10b-5p. The expression of neutral sphingomyelinase 2 (N-SMase2) was decreased in hypoxia ECFCs, and this result was consistent with the changes in miR-10b-5p in hyp-exo. CONCLUSIONS Due to a reduction of miR-10b-5p, which targets the fibrotic genes Smurf1 and HDAC4, the anti-fibrotic effects of hyp-exo were abolished. (hide) EV-METRIC 44% (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 Endothelial colony-forming cells Sample origin Hypoxia 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 Filtration Protein markers EV: CD9/ Alix/ CD63 non-EV: Calnexin Proteomics no Show all info Study aim Function Sample Species Homo sapiens Sample Type Endothelial colony-forming cells Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 10,000 g and 50,000 g Between 100,000 g and 150,000 g Pelleting performed Yes Pelleting: rotor type SW 41 Ti Pelleting: speed (g) 123000 Wash: time (min) 70 Wash: Rotor Type SW 41 Ti Wash: speed (g) 123000 Filtration steps 0.22µm or 0.2µm Characterization: Protein analysis Protein Concentration Method microBCA Western Blot Antibody details provided? Yes Detected EV-associated proteins CD9/ Alix/ CD63 Not detected contaminants Calnexin Characterization: RNA analysis RNA analysis Type (RT)(q)PCR Database No Proteinase treatment No RNAse treatment No Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Modus Reported size (nm) 110 EV concentration Yes EM EM-type Transmission-EM Image type Close-up Report type Not Reported EV-concentration No

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EV-TRACK ID	EV220111
species	Homo sapiens
sample type	Endothelial colony-forming cells
condition	Normoxia	Hypoxia
separation protocol	dUC/ Filtration	dUC/ Filtration
Exp. nr.	1	2
EV-METRIC %	44	44