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You searched for: EV220363 (EV-TRACK ID)

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Experiment number
  • If needed, multiple experiments were identified in a single publication based on differing sample types, separation protocols and/or vesicle types of interest.
Species
  • Species of origin of the EVs.
Separation protocol
  • Gives a short, non-chronological overview of the different steps of the separation protocol.
    • (d)(U)C = (differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
Details EV-TRACK ID Experiment nr. Species Sample type Separation protocol First author Year EV-METRIC
EV220363 4/4 Rattus norvegicus PC12 (d)(U)C
DG
Tedford E 2023 71%

Study summary

Full title
All authors
Tedford E, Badya NB, Laing C, Asaoka N, Kaneko S, Filippi BM, McConkey GA
Journal
Sci Rep
Abstract
Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammati (show more...)Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammation, and behavior, yet it remains elusive how these changes come about. In this study we investigated how norepinephrine levels are altered by infection. TINEV (Toxoplasma-induced neuronal extracellular vesicles) isolated from infected noradrenergic cells down-regulated dopamine ß-hydroxylase (DBH) gene expression in human and rodent cells. Here we report that intracerebral injection of TINEVs into the brain is sufficient to induce DBH down-regulation and distrupt catecholaminergic signalling. Further, TINEV treatment induced hypermethylation upstream of the DBH gene. An antisense lncRNA to DBH was found in purified TINEV preparations. Paracrine signalling to induce transcriptional gene silencing and DNA methylation may be a common mode to regulate neurologic function. (hide)
EV-METRIC
71% (96th 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
Toxoplasma gondii Prugniaud-infected
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
(Differential) (ultra)centrifugation
Density gradient
Protein markers
EV: CD63/ CD81/ Flotillin-1/ TSG101/ EpCAM/ Alix
non-EV: GM130
Proteomics
no
EV density (g/ml)
1.16
Show all info
Study aim
Function
Sample
Species
Rattus norvegicus
Sample Type
Cell culture supernatant
EV-producing cells
PC12
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Commercial EDS
Separation Method
(Differential) (ultra)centrifugation
dUC: centrifugation steps
Between 800 g and 10,000 g
Equal to or above 150,000 g
Pelleting performed
Yes
Pelleting: rotor type
SW 60 Ti
Pelleting: speed (g)
160000
Density gradient
Type
Discontinuous
Number of initial discontinuous layers
11
Lowest density fraction
10%
Highest density fraction
70%
Total gradient volume, incl. sample (mL)
12
Sample volume (mL)
1
Orientation
Bottom-up
Speed (g)
70000
Duration (min)
960
Fraction volume (mL)
2
Fraction processing
Centrifugation
Pelleting: volume per fraction
10
Pelleting: speed (g)
160000
Pelleting: adjusted k-factor
1.132
Characterization: Protein analysis
Protein Concentration Method
microBCA
Protein Yield (µg)
per milliliter of starting sample
Other 1
Dot Blot SBI
Detected EV-associated proteins
CD63/ CD81/ Flotillin1/ TSG101/ EpCAM
Not detected EV-associated proteins
Alix
Detected contaminants
none
Not detected contaminants
GM130
Characterization: RNA analysis
RNA analysis
Type
RT-PCR
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
EM
EM-type
Transmission-EM
Image type
Wide-field
Report size (nm)
100
EV220363 1/4 Homo sapiens BE(2)-M17 (d)(U)C
DG
Tedford E 2023 43%

Study summary

Full title
All authors
Tedford E, Badya NB, Laing C, Asaoka N, Kaneko S, Filippi BM, McConkey GA
Journal
Sci Rep
Abstract
Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammati (show more...)Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammation, and behavior, yet it remains elusive how these changes come about. In this study we investigated how norepinephrine levels are altered by infection. TINEV (Toxoplasma-induced neuronal extracellular vesicles) isolated from infected noradrenergic cells down-regulated dopamine ß-hydroxylase (DBH) gene expression in human and rodent cells. Here we report that intracerebral injection of TINEVs into the brain is sufficient to induce DBH down-regulation and distrupt catecholaminergic signalling. Further, TINEV treatment induced hypermethylation upstream of the DBH gene. An antisense lncRNA to DBH was found in purified TINEV preparations. Paracrine signalling to induce transcriptional gene silencing and DNA methylation may be a common mode to regulate neurologic function. (hide)
EV-METRIC
43% (81st 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
(Differential) (ultra)centrifugation
Density gradient
Protein markers
EV: None
non-EV: None
Proteomics
no
EV density (g/ml)
1.16
Show all info
Study aim
Function
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
BE(2)-M17
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Commercial EDS
Separation Method
(Differential) (ultra)centrifugation
dUC: centrifugation steps
Between 800 g and 10,000 g
Equal to or above 150,000 g
Pelleting performed
Yes
Pelleting: rotor type
SW 60 Ti
Pelleting: speed (g)
160000
Density gradient
Type
Discontinuous
Number of initial discontinuous layers
11
Lowest density fraction
10%
Highest density fraction
70%
Total gradient volume, incl. sample (mL)
12
Sample volume (mL)
1
Orientation
Bottom-up
Speed (g)
70000
Duration (min)
960
Fraction volume (mL)
2
Fraction processing
Centrifugation
Pelleting: volume per fraction
10
Pelleting: speed (g)
160000
Pelleting: adjusted k-factor
1.132
Characterization: Protein analysis
None
Protein Concentration Method
microBCA
Protein Yield (µg)
per milliliter of starting sample
Characterization: Lipid analysis
No
Characterization: Particle analysis
None
EV220363 2/4 Homo sapiens Human foreskin fibroblasts (d)(U)C
DG
Tedford E 2023 43%

Study summary

Full title
All authors
Tedford E, Badya NB, Laing C, Asaoka N, Kaneko S, Filippi BM, McConkey GA
Journal
Sci Rep
Abstract
Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammati (show more...)Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammation, and behavior, yet it remains elusive how these changes come about. In this study we investigated how norepinephrine levels are altered by infection. TINEV (Toxoplasma-induced neuronal extracellular vesicles) isolated from infected noradrenergic cells down-regulated dopamine ß-hydroxylase (DBH) gene expression in human and rodent cells. Here we report that intracerebral injection of TINEVs into the brain is sufficient to induce DBH down-regulation and distrupt catecholaminergic signalling. Further, TINEV treatment induced hypermethylation upstream of the DBH gene. An antisense lncRNA to DBH was found in purified TINEV preparations. Paracrine signalling to induce transcriptional gene silencing and DNA methylation may be a common mode to regulate neurologic function. (hide)
EV-METRIC
43% (81st 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
(Differential) (ultra)centrifugation
Density gradient
Protein markers
EV: None
non-EV: None
Proteomics
no
EV density (g/ml)
1.16
Show all info
Study aim
Function
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Human foreskin fibroblasts
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Commercial EDS
Separation Method
(Differential) (ultra)centrifugation
dUC: centrifugation steps
Between 800 g and 10,000 g
Equal to or above 150,000 g
Pelleting performed
Yes
Pelleting: rotor type
SW 60 Ti
Pelleting: speed (g)
160000
Density gradient
Type
Discontinuous
Number of initial discontinuous layers
11
Lowest density fraction
10%
Highest density fraction
70%
Total gradient volume, incl. sample (mL)
12
Sample volume (mL)
1
Orientation
Bottom-up
Speed (g)
70000
Duration (min)
960
Fraction volume (mL)
2
Fraction processing
Centrifugation
Pelleting: volume per fraction
10
Pelleting: speed (g)
160000
Pelleting: adjusted k-factor
1.132
Characterization: Protein analysis
None
Protein Concentration Method
microBCA
Protein Yield (µg)
per milliliter of starting sample
Characterization: Lipid analysis
No
Characterization: Particle analysis
None
EV220363 3/4 Rattus norvegicus PC12 (d)(U)C
DG
Tedford E 2023 43%

Study summary

Full title
All authors
Tedford E, Badya NB, Laing C, Asaoka N, Kaneko S, Filippi BM, McConkey GA
Journal
Sci Rep
Abstract
Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammati (show more...)Infection with the protozoan Toxoplasma gondii induces changes in neurotransmission, neuroinflammation, and behavior, yet it remains elusive how these changes come about. In this study we investigated how norepinephrine levels are altered by infection. TINEV (Toxoplasma-induced neuronal extracellular vesicles) isolated from infected noradrenergic cells down-regulated dopamine ß-hydroxylase (DBH) gene expression in human and rodent cells. Here we report that intracerebral injection of TINEVs into the brain is sufficient to induce DBH down-regulation and distrupt catecholaminergic signalling. Further, TINEV treatment induced hypermethylation upstream of the DBH gene. An antisense lncRNA to DBH was found in purified TINEV preparations. Paracrine signalling to induce transcriptional gene silencing and DNA methylation may be a common mode to regulate neurologic function. (hide)
EV-METRIC
43% (81st 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
(Differential) (ultra)centrifugation
Density gradient
Protein markers
EV: None
non-EV: None
Proteomics
no
EV density (g/ml)
1.16
Show all info
Study aim
Function
Sample
Species
Rattus norvegicus
Sample Type
Cell culture supernatant
EV-producing cells
PC12
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Commercial EDS
Separation Method
(Differential) (ultra)centrifugation
dUC: centrifugation steps
Between 800 g and 10,000 g
Equal to or above 150,000 g
Pelleting performed
Yes
Pelleting: rotor type
SW 60 Ti
Pelleting: speed (g)
160000
Density gradient
Type
Discontinuous
Number of initial discontinuous layers
11
Lowest density fraction
10%
Highest density fraction
70%
Total gradient volume, incl. sample (mL)
12
Sample volume (mL)
1
Orientation
Bottom-up
Speed (g)
70000
Duration (min)
960
Fraction volume (mL)
2
Fraction processing
Centrifugation
Pelleting: volume per fraction
10
Pelleting: speed (g)
160000
Pelleting: adjusted k-factor
1.132
Characterization: Protein analysis
None
Protein Concentration Method
microBCA
Protein Yield (µg)
per milliliter of starting sample
Characterization: RNA analysis
RNA analysis
Type
RT-PCR
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
EM
EM-type
Transmission-EM
Image type
Wide-field
Report size (nm)
100
1 - 4 of 4
  • CM = Commercial method
  • dUC = differential ultracentrifugation
  • DG = density gradient
  • UF = ultrafiltration
  • SEC = size-exclusion chromatography
EV-TRACK ID
EV220363
species
Rattus norvegicus
Homo sapiens
Homo sapiens
Rattus norvegicus
sample type
Cell culture
Cell culture
Cell culture
Cell culture
cell type
PC12
BE(2)-M17
Human
foreskin fibroblasts
PC12
condition
Toxoplasma
gondii Prugniaud-infected
Control condition
Control condition
Control condition
separation protocol
dUC/
Density gradient
dUC/
Density gradient
dUC/
Density gradient
dUC/
Density gradient
Exp. nr.
4
1
2
3
EV-METRIC %
71
43
43
43