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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Separation protocol	First author	Year	EV-METRIC
	EV100004	1/1	Mus musculus	NAY	(d)(U)C DG Filtration	Guescini M	2010	44%
Study summary Full title C2C12 myoblasts release micro-vesicles containing mtDNA and proteins involved in signal transduction All authors Guescini M, Guidolin D, Vallorani L, Casadei L, Gioacchini AM, Tibollo P, Battistelli M, Falcieri E, Battistin L, Agnati LF, Stocchi V Journal Exp Cell Res Abstract Micro-vesicles can be released by different cell types and operate as 'safe containers' mediating in (show more...)Micro-vesicles can be released by different cell types and operate as 'safe containers' mediating inter-cellular communication. In this work we investigated whether cultured myoblasts could release exosomes. The reported data demonstrate, for the first time, that C2C12 myoblasts release micro-vesicles as shown by the presence of two exosome markers (Tsg101 and Alix proteins). Using real-time PCR analysis it was shown that these micro-vesicles, like other cell types, carry mtDNA. Proteomic characterization of the released micro-vesicle contents showed the presence of many proteins involved in signal transduction. The bioinformatics assessment of the Disorder Index and Aggregation Index of these proteins suggested that C2C12 micro-vesicles mainly deliver the machinery for signal transduction to target cells rather than key proteins involved in hub functions in molecular networks. The presence of IGFBP-5 in the purified micro-vesicles represents an exception, since this binding protein can play a key role in the modulation of the IGF-1 signalling pathway. In conclusion, the present findings demonstrate that skeletal muscle cells release micro-vesicles, which probably have an important role in the communication processes within skeletal muscles and between skeletal muscles and other organs. In particular, the present findings suggest possible new diagnostic approaches to skeletal muscle diseases. (hide) EV-METRIC 44% (84th 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 NAY Focus vesicles microvesicles 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 (d)(U)C DG Filtration Protein markers EV: Alix/ TSG101 non-EV: Proteomics yes Show all info Study aim Omics Sample Species Mus musculus Sample Type Cell culture supernatant EV-harvesting Medium EV Depleted 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) 70 Wash: volume per pellet (ml) 13 Density gradient Only used for validation of main results Yes Lowest density fraction 0.5 Highest density fraction 2.5 Orientation Bottom-up Rotor type 90Ti Speed (g) 150000 Filtration steps 0.22µm or 0.2µm Characterization: Protein analysis Western Blot Antibody details provided? Yes Antibody dilution provided? Yes Detected EV-associated proteins Alix/ TSG101 Characterization: Particle analysis EM EM-type transmission EM Image type Close-up, Wide-field

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EV-TRACK ID	EV100004
species	Mus musculus
sample type	Cell culture
cell type	NAY
condition	NAY
separation protocol	(d)(U)C DG Filtration
Exp. nr.	1
EV-METRIC %	44