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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Isolation protocol	First author	Year	EV-METRIC
	EV140166	2/3	Mus musculus	Pre-purified exosomes loaded with SPION5	Sucrose-DG (valid.)	Hood JL	2014	67%
Study summary Full title Maximizing exosome colloidal stability following electroporation All authors Hood JL, Scott MJ, Wickline SA Journal Anal Biochem Abstract Development of exosome-based semisynthetic nanovesicles for diagnostic and therapeutic purposes requ (show more...)Development of exosome-based semisynthetic nanovesicles for diagnostic and therapeutic purposes requires novel approaches to load exosomes with cargo. Electroporation has previously been used to load exosomes with RNA. However, investigations into exosome colloidal stability following electroporation have not been considered. Herein, we report the development of a unique trehalose pulse media (TPM) that minimizes exosome aggregation following electroporation. Dynamic light scattering (DLS) and RNA absorbance were employed to determine the extent of exosome aggregation and electroextraction post electroporation in TPM compared to common PBS pulse media or sucrose pulse media (SPM). Use of TPM to disaggregate melanoma exosomes post electroporation was dependent on both exosome concentration and electric field strength. TPM maximized exosome dispersal post electroporation for both homogenous B16 melanoma and heterogeneous human serum-derived populations of exosomes. Moreover, TPM enabled heavy cargo loading of melanoma exosomes with 5nm superparamagnetic iron oxide nanoparticles (SPION5) while maintaining original exosome size and minimizing exosome aggregation as evidenced by transmission electron microscopy. Loading exosomes with SPION5 increased exosome density on sucrose gradients. This provides a simple, label-free means of enriching exogenously modified exosomes and introduces the potential for MRI-driven theranostic exosome investigations in vivo. (hide) EV-METRIC 67% (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 electron microscopy images Particle analysis: inclusion of a widefield and close-up electron microscopy image density gradient Isolation method: density gradient, at least as validation of results attributed to EVs EV density Isolation method: reporting of obtained EV density ultracentrifugation specifics Isolation 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 Pre-purified exosomes loaded with SPION5 Focus vesicles exosomes Isolation protocol Isolation protocol Gives a short, non-chronological overview of the different steps of the isolation protocol. dUC = differential ultracentrifugation DG = density gradient UF = ultrafiltration SEC = size-exclusion chromatography Sucrose-DG (valid.) Protein markers EV: None non-EV: None Proteomics no EV density (g/ml) 1.16-1.19 Show all info Study aim Function Sample Species Mus musculus Sample Type Pre-purified exosomes loaded with SPION5 Isolation Method Density gradient Only used for validation of main results 1 Density medium Sucrose Lowest density fraction 0.25 Highest density fraction 2 Orientation Top-down Fluorescent NTA Characterization: Particle analysis DLS EM EM-type transmission EM Image type Close-up, Wide-field

	EV140166	1/3	Mus musculus	Cell culture supernatant	dUC	Hood JL	2014	14%
Study summary Full title Maximizing exosome colloidal stability following electroporation All authors Hood JL, Scott MJ, Wickline SA Journal Anal Biochem Abstract Development of exosome-based semisynthetic nanovesicles for diagnostic and therapeutic purposes requ (show more...)Development of exosome-based semisynthetic nanovesicles for diagnostic and therapeutic purposes requires novel approaches to load exosomes with cargo. Electroporation has previously been used to load exosomes with RNA. However, investigations into exosome colloidal stability following electroporation have not been considered. Herein, we report the development of a unique trehalose pulse media (TPM) that minimizes exosome aggregation following electroporation. Dynamic light scattering (DLS) and RNA absorbance were employed to determine the extent of exosome aggregation and electroextraction post electroporation in TPM compared to common PBS pulse media or sucrose pulse media (SPM). Use of TPM to disaggregate melanoma exosomes post electroporation was dependent on both exosome concentration and electric field strength. TPM maximized exosome dispersal post electroporation for both homogenous B16 melanoma and heterogeneous human serum-derived populations of exosomes. Moreover, TPM enabled heavy cargo loading of melanoma exosomes with 5nm superparamagnetic iron oxide nanoparticles (SPION5) while maintaining original exosome size and minimizing exosome aggregation as evidenced by transmission electron microscopy. Loading exosomes with SPION5 increased exosome density on sucrose gradients. This provides a simple, label-free means of enriching exogenously modified exosomes and introduces the potential for MRI-driven theranostic exosome investigations in vivo. (hide) EV-METRIC 14% (42nd 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 electron microscopy images Particle analysis: inclusion of a widefield and close-up electron microscopy image density gradient Isolation method: density gradient, at least as validation of results attributed to EVs EV density Isolation method: reporting of obtained EV density ultracentrifugation specifics Isolation 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 Focus vesicles exosomes Isolation protocol Isolation protocol Gives a short, non-chronological overview of the different steps of the isolation protocol. dUC = differential ultracentrifugation DG = density gradient UF = ultrafiltration SEC = size-exclusion chromatography dUC Adj. k-factor 564.7 (pelleting) Protein markers EV: None non-EV: None Proteomics no Show all info Study aim Function Sample Species Mus musculus Sample Type Cell culture supernatant EV-harvesting Medium EV Depleted Isolation Method Differential ultracentrifugation dUC: centrifugation steps Below or equal to 800 g Between 800 g and 10,000 g Between 10,000 g and 50,000 g Between 100,000 g and 150,000 g Pelleting: time(min) 120 Pelleting: rotor type 70Ti Pelleting: adjusted k-factor 564.7 Fluorescent NTA Characterization: Particle analysis DLS

	EV140166	3/3	Mus musculus	Serum	0.2 µm filter dUC	Hood JL	2014	14%
Study summary Full title Maximizing exosome colloidal stability following electroporation All authors Hood JL, Scott MJ, Wickline SA Journal Anal Biochem Abstract Development of exosome-based semisynthetic nanovesicles for diagnostic and therapeutic purposes requ (show more...)Development of exosome-based semisynthetic nanovesicles for diagnostic and therapeutic purposes requires novel approaches to load exosomes with cargo. Electroporation has previously been used to load exosomes with RNA. However, investigations into exosome colloidal stability following electroporation have not been considered. Herein, we report the development of a unique trehalose pulse media (TPM) that minimizes exosome aggregation following electroporation. Dynamic light scattering (DLS) and RNA absorbance were employed to determine the extent of exosome aggregation and electroextraction post electroporation in TPM compared to common PBS pulse media or sucrose pulse media (SPM). Use of TPM to disaggregate melanoma exosomes post electroporation was dependent on both exosome concentration and electric field strength. TPM maximized exosome dispersal post electroporation for both homogenous B16 melanoma and heterogeneous human serum-derived populations of exosomes. Moreover, TPM enabled heavy cargo loading of melanoma exosomes with 5nm superparamagnetic iron oxide nanoparticles (SPION5) while maintaining original exosome size and minimizing exosome aggregation as evidenced by transmission electron microscopy. Loading exosomes with SPION5 increased exosome density on sucrose gradients. This provides a simple, label-free means of enriching exogenously modified exosomes and introduces the potential for MRI-driven theranostic exosome investigations in vivo. (hide) EV-METRIC 14% (64th 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 electron microscopy images Particle analysis: inclusion of a widefield and close-up electron microscopy image density gradient Isolation method: density gradient, at least as validation of results attributed to EVs EV density Isolation method: reporting of obtained EV density ultracentrifugation specifics Isolation 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 Serum Focus vesicles exosomes Isolation protocol Isolation protocol Gives a short, non-chronological overview of the different steps of the isolation protocol. dUC = differential ultracentrifugation DG = density gradient UF = ultrafiltration SEC = size-exclusion chromatography 0.2 µm filter + dUC Adj. k-factor 564.7 (pelleting) Protein markers EV: None non-EV: None Proteomics no Show all info Study aim Function Sample Species Mus musculus Sample Type Serum Isolation Method Differential ultracentrifugation dUC: centrifugation steps Below or equal to 800 g Between 800 g and 10,000 g Between 10,000 g and 50,000 g Between 100,000 g and 150,000 g Pelleting: time(min) 120 Pelleting: rotor type 70Ti Pelleting: adjusted k-factor 564.7 Filtration steps 0.22µm or 0.2µm Fluorescent NTA Characterization: Particle analysis DLS

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EV-TRACK ID	EV140166
species	Mus musculus
sample type	Pre-purified exosomes loaded with SPION5	Cell culture	Serum
sample type		EV Depleted
isolation protocol	Sucrose-DG	dUC	0.2 µm filter dUC
case number	2	1	3
EV-METRIC %	67	14	14