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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Separation protocol	First author	Year	EV-METRIC
	EV120018	1/1	Homo sapiens	NAY	(d)(U)C DC UF	Hosseini-Beheshti E	2012	38%
Study summary Full title Exosomes as biomarker enriched microvesicles: characterization of exosomal proteins derived from a panel of prostate cell lines with distinct AR phenotypes All authors Hosseini-Beheshti E, Pham S, Adomat H, Li N, Tomlinson Guns ES Journal Mol Cell Proteomics Abstract Prostate cancer is the leading type of cancer diagnosed in men. In 2010, ~217,730 new cases of prost (show more...)Prostate cancer is the leading type of cancer diagnosed in men. In 2010, ~217,730 new cases of prostate cancer were reported in the United States. Prompt diagnosis of the disease can substantially improve its clinical outcome. Improving capability for early detection, as well as developing new therapeutic targets in advanced disease are research priorities that will ultimately lead to better patient survival. Eukaryotic cells secrete proteins via distinct regulated mechanisms which are either ER/Golgi dependent or microvesicle mediated. The release of microvesicles has been shown to provide a novel mechanism for intercellular communication. Exosomes are nanometer sized cup-shaped membrane vesicles which are secreted from normal and cancerous cells. They are present in various biological fluids and are rich in characteristic proteins. Exosomes may thus have potential both in facilitating early diagnosis via less invasive procedures or be candidates for novel therapeutic approaches for castration resistance prostate cancer. Because exosomes have been shown previously to have a role in cell-cell communication in the local tumor microenvironment, conferring activation of numerous survival mechanisms, we characterized constitutive lipids, cholesterol and proteins from exosomes derived from six prostate cell lines and tracked their uptake in both cancerous and benign prostate cell lines respectively. Our comprehensive proteomic and lipidomic analysis of prostate derived exosomes could provide insight for future work on both biomarker and therapeutic targets for the treatment of prostate cancer. (hide) EV-METRIC 38% (79th 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 exosomes / 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 DC UF Protein markers EV: Rab5/ Tubulin/ HSP90/ LAMP2/ HSP70/ Beta-actin/ CD9 non-EV: Cell organelle protein Proteomics yes Show all info Study aim Omics Sample Species Homo sapiens Sample Type Cell culture supernatant EV-harvesting Medium serum free Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Pelleting performed No Characterization: Protein analysis Western Blot Detected EV-associated proteins CD9/ HSP90/ HSP70/ LAMP2/ Beta-actin/ Rab5/ Tubulin Detected contaminants Cell organelle protein ELISA Detected EV-associated proteins LAMP2/ Beta-actin/ Rab5/ Tubulin Characterization: Particle analysis EM EM-type transmission EM Image type Wide-field

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EV-TRACK ID	EV120018
species	Homo sapiens
sample type	Cell culture
cell type	NAY
condition	NAY
separation protocol	(d)(U)C DC UF
Exp. nr.	1
EV-METRIC %	38