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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	separation protocol	First author	Year	EV-METRIC
	EV190064	5/10	Homo sapiens	Urine	DG dUC UF	Dhondt B	2020	100%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 100% (98th 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 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 Urine 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 DG + dUC + UF Protein markers EV: TSG101/ Alix/ Flotillin1/ CD9 non-EV: Tamm-Horsfall protein Proteomics no EV density (g/ml) 1.087-1.109 Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Control condition Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Density gradient Density medium Iodixanol Type Discontinuous Number of initial discontinuous layers 4 Lowest density fraction 5% Highest density fraction 40% Total gradient volume, incl. sample (mL) 16.5 Sample volume (mL) 1 Orientation Top-down Rotor type SW 32.1 Ti Speed (g) 100000 Duration (min) 1080 Fraction volume (mL) 1 Fraction processing Centrifugation Pelleting: volume per fraction 16 Pelleting: duration (min) 180 Pelleting: rotor type SW 32.1 Ti Pelleting: speed (g) 100000 Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ CD9/ TSG101/ Alix Detected contaminants Tamm-Horsfall protein Characterization: Particle analysis NA NTA Report type Mean Reported size (nm) 196.5 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field Report size (nm) 30-150

	EV190064	6/10	Homo sapiens	Urine	DG dUC UF	Dhondt B	2020	100%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 100% (98th 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 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 Urine 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 DG + dUC + UF Protein markers EV: TSG101/ Alix/ Flotillin1/ CD9 non-EV: Tamm-Horsfall protein Proteomics no EV density (g/ml) 1.087-1.109 Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Control condition Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Density gradient Density medium Iodixanol Type Discontinuous Number of initial discontinuous layers 4 Lowest density fraction 5% Highest density fraction 40% Total gradient volume, incl. sample (mL) 16.5 Sample volume (mL) 0.8 Orientation Bottom-up Rotor type SW 32.1 Ti Speed (g) 100000 Duration (min) 1080 Fraction volume (mL) 1 Fraction processing Centrifugation Pelleting: volume per fraction 16 Pelleting: duration (min) 180 Pelleting: rotor type SW 32.1 Ti Pelleting: speed (g) 100000 Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ CD9/ TSG101/ Alix Detected contaminants Tamm-Horsfall protein Characterization: Particle analysis NA NTA Report type Mean Reported size (nm) 131.7 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field Report size (nm) 30-150

	EV190064	7/10	Homo sapiens	Urine	DG dUC UF	Dhondt B	2020	100%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 100% (98th 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 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 Urine Sample origin Prostate Cancer 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 DG + dUC + UF Protein markers EV: Alix/ TSG101/ Flotillin1/ CD9/ Syntenin-1 non-EV: Tamm-Horsfall protein Proteomics yes EV density (g/ml) 1.087-1.109 Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Prostate Cancer Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Density gradient Density medium Iodixanol Type Discontinuous Number of initial discontinuous layers 4 Lowest density fraction 5% Highest density fraction 40% Total gradient volume, incl. sample (mL) 16.5 Sample volume (mL) 0.8 Orientation Bottom-up Rotor type SW 32.1 Ti Speed (g) 100000 Duration (min) 1080 Fraction volume (mL) 1 Fraction processing Centrifugation Pelleting: volume per fraction 16 Pelleting: duration (min) 180 Pelleting: rotor type SW 32.1 Ti Pelleting: speed (g) 100000 Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ Alix/ Syntenin-1/ TSG101/ CD9 Detected contaminants Tamm-Horsfall protein Proteomics database Yes: Characterization: Particle analysis NA NTA Report type Size range/distribution Reported size (nm) 100-200 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field Report size (nm) 30-150

	EV190064	8/10	Homo sapiens	Urine	DG dUC UF	Dhondt B	2020	100%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 100% (98th 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 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 Urine Sample origin Bladder Cancer 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 DG + dUC + UF Protein markers EV: Alix/ Flotillin1/ CD9/ Syntenin-1 non-EV: Tamm-Horsfall protein Proteomics yes EV density (g/ml) 1.087-1.109 Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Bladder Cancer Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Density gradient Density medium Iodixanol Type Discontinuous Number of initial discontinuous layers 4 Lowest density fraction 5% Highest density fraction 40% Total gradient volume, incl. sample (mL) 16.5 Sample volume (mL) 0.8 Orientation Bottom-up Rotor type SW 32.1 Ti Speed (g) 100000 Duration (min) 1080 Fraction volume (mL) 1 Fraction processing Size-exclusion chromatography Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ Alix/ Syntenin-1/ CD9 Detected contaminants Tamm-Horsfall protein Proteomics database Yes: Characterization: Particle analysis NA NTA Report type Size range/distribution Reported size (nm) 100-200 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field Report size (nm) 30-150

	EV190064	9/10	Homo sapiens	Urine	DG dUC UF	Dhondt B	2020	100%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 100% (98th 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 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 Urine Sample origin Renal Cancer 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 DG + dUC + UF Protein markers EV: Alix/ TSG101/ Flotillin1/ CD9/ Syntenin-1 non-EV: Tamm-Horsfall protein Proteomics yes EV density (g/ml) 1.087-1.109 Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Renal Cancer Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Density gradient Density medium Iodixanol Type Discontinuous Number of initial discontinuous layers 4 Lowest density fraction 5% Highest density fraction 40% Total gradient volume, incl. sample (mL) 16.5 Sample volume (mL) 0.8 Orientation Bottom-up Rotor type SW 32.1 Ti Speed (g) 100000 Duration (min) 1080 Fraction volume (mL) 1 Fraction processing Size-exclusion chromatography Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ Alix/ Syntenin-1/ TSG101/ CD9 Detected contaminants Tamm-Horsfall protein Proteomics database Yes: Characterization: Particle analysis NA NTA Report type Size range/distribution Reported size (nm) 100-300 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field Report size (nm) 30-150

	EV190064	10/10	Homo sapiens	Tissue	DG dUC UF	Dhondt B	2020	100%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 100% (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 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 Tissue Sample origin Prostate Cancer 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 DG + dUC + UF Protein markers EV: Alix/ TSG101/ Flotillin1/ CD9/ Syntenin-1 non-EV: Tamm-Horsfall protein Proteomics yes EV density (g/ml) 1.087-1.109 Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Tissue Sample Condition Prostate Cancer Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Density gradient Density medium Iodixanol Type Discontinuous Number of initial discontinuous layers 4 Lowest density fraction 5% Highest density fraction 40% Total gradient volume, incl. sample (mL) 16.5 Sample volume (mL) 0.8 Orientation Bottom-up Rotor type SW 32.1 Ti Speed (g) 100000 Duration (min) 1080 Fraction volume (mL) 1 Fraction processing Size-exclusion chromatography Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ Alix/ Syntenin-1/ TSG101/ CD9 Detected contaminants Tamm-Horsfall protein Proteomics database Yes Characterization: Particle analysis NA NTA Report type Mean Reported size (nm) 150.3 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field Report size (nm) 30-150

	EV190064	1/10	Homo sapiens	Cell culture supernatant	DG dUC Filtration UF	Dhondt B	2020	78%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 78% (97th 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 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 pMET7-gag-EGFP transfected 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 DG + dUC + Filtration + UF Protein markers EV: Flotillin1/ Syntenin-1/ gag-EGFP non-EV: Proteomics no EV density (g/ml) 1.087-1.109 Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Cell culture supernatant Sample Condition pMET7-gag-EGFP transfected EV-producing cells HEK293T EV-harvesting Medium Serum free medium Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Below or equal to 800 g Between 100,000 g and 150,000 g Pelleting: time(min) 180 Pelleting: rotor type SW 32.1 Ti Pelleting: speed (g) 100000 Density gradient Density medium Iodixanol Type Discontinuous Number of initial discontinuous layers 4 Lowest density fraction 5% Highest density fraction 40% Total gradient volume, incl. sample (mL) 16.5 Sample volume (mL) 1 Orientation Top-down Rotor type SW 32.1 Ti Speed (g) 100000 Duration (min) 1080 Fraction volume (mL) 1 Fraction processing Centrifugation Pelleting: volume per fraction 16 Pelleting: duration (min) 180 Pelleting: rotor type SW 32.1 Ti Pelleting: speed (g) 100000 Filtration steps 0.45µm > x > 0.22µm, 0.22µm or 0.2µm Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Characterization: Protein analysis Western Blot Detected EV-associated proteins Flotillin1/ Syntenin-1/ gag-EGFP Fluorescent NTA Relevant measurements variables specified? NA Detected EV-associated proteins gag-EGFP Characterization: Particle analysis NA NTA Report type Size range/distribution Reported size (nm) 100-200 EV concentration Yes EM EM-type Immuno-EM Proteïns CD63 Image type Close-up, Wide-field

	EV190064	3/10	Homo sapiens	Urine	dUC SEC Size-exclusion chromatography (non-commercial) UF	Dhondt B	2020	75%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 75% (93rd 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 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 Urine 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 dUC + SEC + Size-exclusion chromatography (non-commercial) + UF Protein markers EV: Alix/ Flotillin1/ CD9 non-EV: Tamm-Horsfall protein Proteomics no Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Control condition Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Size-exclusion chromatography Total column volume (mL) 10 Sample volume/column (mL) 1 Resin type Sepharose CL-2B Other Name other separation method Size-exclusion chromatography (non-commercial) Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ Alix/ CD9 Detected contaminants Tamm-Horsfall protein Characterization: Particle analysis NA NTA Report type Size range/distribution Reported size (nm) 100-200 EV concentration Yes EM EM-type Transmission-EM Image type Close-up, Wide-field Report size (nm) 130

	EV190064	2/10	Homo sapiens	Urine	dUC Filtration	Dhondt B	2020	56%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 56% (88th 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 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 Urine 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 dUC + Filtration Protein markers EV: Alix/ Flotillin1/ CD9 non-EV: Tamm-Horsfall protein Proteomics no Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Control condition 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: time(min) 120 Pelleting: rotor type SW 32.1 Ti Pelleting: speed (g) 110000 Wash: volume per pellet (ml) 16 Wash: time (min) 70 Wash: Rotor Type SW 32.1 Ti Wash: speed (g) 110000 Filtration steps 0.22µm or 0.2µm Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Flotillin1/ Alix/ CD9 Detected contaminants Tamm-Horsfall protein Characterization: Particle analysis NA NTA Report type Mean Reported size (nm) 226.2 EV concentration Yes

	EV190064	4/10	Homo sapiens	Urine	dUC ExoQuick UF	Dhondt B	2020	50%
Study summary Full title Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. All authors Dhondt B, Geeurickx E, Tulkens J, Van Deun J, Vergauwen G, Lippens L, Miinalainen I, Rappu P, Heino J, Ost P, Lumen N, De Wever O, Hendrix A. Journal J Extracell Vesicles Abstract Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular (show more...)Extracellular vesicles (EV) are increasingly being recognized as important vehicles of intercellular communication and promising diagnostic and prognostic biomarkers in cancer. Despite this enormous clinical potential, the plethora of methods to separate EV from biofluids, providing material of highly variable purity, and lacking knowledge regarding methodological repeatability pose a barrier to clinical translation. Urine is considered an ideal proximal fluid for the study of EV in urological cancers due to its direct contact with the urogenital system. We demonstrate that density-based fractionation of urine by bottom-up Optiprep density gradient centrifugation separates EV and soluble proteins with high specificity and repeatability. Mass spectrometry-based proteomic analysis of urinary EV (uEV) in men with benign and malignant prostate disease allowed us to significantly expand the known human uEV proteome with high specificity and identifies a unique biological profile in prostate cancer not uncovered by the analysis of soluble proteins. In addition, profiling the proteome of EV separated from prostate tumour conditioned medium and matched uEV confirms the specificity of the identified uEV proteome for prostate cancer. Finally, a comparative proteomic analysis with uEV from patients with bladder and renal cancer provided additional evidence of the selective enrichment of protein signatures in uEV reflecting their respective cancer tissues of origin. In conclusion, this study identifies hundreds of previously undetected proteins in uEV of prostate cancer patients and provides a powerful toolbox to map uEV content and contaminants ultimately allowing biomarker discovery in urological cancers. (hide) EV-METRIC 50% (86th 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 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 Urine 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 dUC + ExoQuick + UF Protein markers EV: Alix/ Flotillin1/ CD9 non-EV: Tamm-Horsfall protein Proteomics no Show all info Study aim Function/New methodological development/Biomarker/Identification of content (omics approaches)/Technical analysis comparing/optimizing EV-related methods Sample Species Homo sapiens Sample Type Urine Sample Condition Control condition Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Ultra filtration Cut-off size (kDa) 10 Membrane type Regenerated cellulose Commercial kit ExoQuick Characterization: Protein analysis Protein Concentration Method Fluorometric assay (e.g. Qubit, NanoOrange,...) Western Blot Detected EV-associated proteins Alix/ CD9 Not detected EV-associated proteins Flotillin1 Detected contaminants Tamm-Horsfall protein Characterization: Particle analysis NA NTA Report type Mean Reported size (nm) 185.4 EV concentration Yes

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