EV-TRACK

Search > Results

You searched for: EV170021 (EV-TRACK ID)

Showing 1 - 2 of 2

Results list Study Tree

Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Separation protocol	First author	Year	EV-METRIC
	EV170021	1/2	Homo sapiens	LIM1215	(d)(U)C	Liem, Michael	2017	44%
Study summary Full title Insulin mediated activation of PI3K/Akt signalling pathway modifies the proteomic cargo of extracellular vesicles. All authors Liem M, Ang CS, Mathivanan S Journal Proteomics Abstract Epidemiological studies suggest that diabetes and obesity increases the risk of colorectal cancer (C (show more...)Epidemiological studies suggest that diabetes and obesity increases the risk of colorectal cancer (CRC) and lowers the patient survival rate. An important attribute in diabetes and obesity is the presence of high levels of growth factors including insulin in blood which can activate the PI3K/Akt signalling pathway. Dysregulation of PI3K/Akt signalling pathway leads to sustained proliferative signals thereby allowing the cells susceptible to cancer. Extracellular vesicles (EVs), secreted nanovesicles of endocytic origin, are implicated in mediating the transfer of oncogenic cargo in the tumour microenvironment. In this study, CRC cells were treated with insulin to activate PI3K/Akt signaling pathway. Insulin treatment significantly increased the number of EVs secreted by CRC cells. Furthermore, pAkt was exclusively packaged in EVs secreted by PI3K/Akt activated cells. Quantitative proteomics analysis confirmed that the protein cargo of EVs are modified upon activation of PI3K/Akt signaling pathway. Bioinformatics analysis highlighted the enrichment of proteins implicated in cell proliferation in EVs secreted by PI3K/Akt activated cells. Furthermore, incubation of EVs secreted by PI3K/Akt activated cells induced proliferation in recipient CRC cells. These findings suggest that EVs can amplify the signal provided by the growth factors in the tumor microenvironment and hence aid in cancer progression. This article is protected by copyright. All rights reserved. (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 Insulin induced 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 IAF = immuno-affinity capture (d)(U)C Adj. k-factor 253.9 (pelleting) / 89.2 (washing) Protein markers EV: TSG101/ TSG101,AKT,pAKT,beta-actin,FAT1,p-cadherin/ AKT/ Alix/ FAT1/ pAKT/ beta-actin/ p-cadherin non-EV: None Proteomics no Show all info Study aim Identification of content (omics approaches) Sample Species Homo sapiens Sample Type Cell culture supernatant EV-producing cells LIM1215 EV-harvesting Medium Serum free medium Cell viability (%) NA Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Below or equal to 800 g Between 800 g and 10,000 g Between 100,000 g and 150,000 g Pelleting performed Yes Pelleting: time(min) 60 Pelleting: rotor type SW 28 Pelleting: speed (g) 100000 Pelleting: adjusted k-factor 253.9 Wash: time (min) 60 Wash: Rotor Type TLA-55 Wash: speed (g) 100000 Wash: adjusted k-factor 89.20 Characterization: Protein analysis Protein Concentration Method Densitometry (SYPRO Ruby) Western Blot Antibody details provided? Yes Lysis buffer provided? Yes Detected EV-associated proteins Alix, TSG101,AKT,pAKT,beta-actin,FAT1,p-cadherin Proteomics database Yes Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Size range/distribution Reported size (nm) 50-150 EV concentration Yes Particle yield 3.08E+07 particles/million cells

	EV170021	2/2	Homo sapiens	LIM1215	(d)(U)C	Liem, Michael	2017	44%
Study summary Full title Insulin mediated activation of PI3K/Akt signalling pathway modifies the proteomic cargo of extracellular vesicles. All authors Liem M, Ang CS, Mathivanan S Journal Proteomics Abstract Epidemiological studies suggest that diabetes and obesity increases the risk of colorectal cancer (C (show more...)Epidemiological studies suggest that diabetes and obesity increases the risk of colorectal cancer (CRC) and lowers the patient survival rate. An important attribute in diabetes and obesity is the presence of high levels of growth factors including insulin in blood which can activate the PI3K/Akt signalling pathway. Dysregulation of PI3K/Akt signalling pathway leads to sustained proliferative signals thereby allowing the cells susceptible to cancer. Extracellular vesicles (EVs), secreted nanovesicles of endocytic origin, are implicated in mediating the transfer of oncogenic cargo in the tumour microenvironment. In this study, CRC cells were treated with insulin to activate PI3K/Akt signaling pathway. Insulin treatment significantly increased the number of EVs secreted by CRC cells. Furthermore, pAkt was exclusively packaged in EVs secreted by PI3K/Akt activated cells. Quantitative proteomics analysis confirmed that the protein cargo of EVs are modified upon activation of PI3K/Akt signaling pathway. Bioinformatics analysis highlighted the enrichment of proteins implicated in cell proliferation in EVs secreted by PI3K/Akt activated cells. Furthermore, incubation of EVs secreted by PI3K/Akt activated cells induced proliferation in recipient CRC cells. These findings suggest that EVs can amplify the signal provided by the growth factors in the tumor microenvironment and hence aid in cancer progression. This article is protected by copyright. All rights reserved. (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 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 IAF = immuno-affinity capture (d)(U)C Adj. k-factor 253.9 (pelleting) / 89.2 (washing) Protein markers EV: TSG101/ AKT/ Alix/ FAT1/ beta-actin/ p-cadherin/ TSG101,AKT,beta-actin,FAT1,p-cadherin non-EV: None Proteomics yes Show all info Study aim Identification of content (omics approaches) Sample Species Homo sapiens Sample Type Cell culture supernatant EV-producing cells LIM1215 EV-harvesting Medium Serum free medium Cell viability (%) NA Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Below or equal to 800 g Between 800 g and 10,000 g Between 100,000 g and 150,000 g Pelleting performed Yes Pelleting: time(min) 60 Pelleting: rotor type SW 28 Pelleting: speed (g) 100000 Pelleting: adjusted k-factor 253.9 Wash: time (min) 60 Wash: Rotor Type TLA-55 Wash: speed (g) 100000 Wash: adjusted k-factor 89.20 Characterization: Protein analysis Protein Concentration Method Densitometry (SYPRO Ruby) Western Blot Antibody details provided? Yes Lysis buffer provided? Yes Detected EV-associated proteins Alix, TSG101,AKT,beta-actin,FAT1,p-cadherin Proteomics database Yes Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Size range/distribution Reported size (nm) 50-150 EV concentration Yes Particle yield 1.85E+07 particles/million cells

				1 - 2 of 2

EV-TRACK ID	EV170021
species	Homo sapiens
sample type	Cell culture
cell type	LIM1215
condition	Insulin induced	Control condition
separation protocol	(d)(U)C	(d)(U)C
Exp. nr.	1	2
EV-METRIC %	44	44