Search > Results

You searched for: EV210034 (EV-TRACK ID)

Showing 1 - 14 of 14

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 code Experiment nr. Species Sample type Separation protocol First author Year EV-METRIC
EV210034 1/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 45%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
45% (80th 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
exosome
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
Filtration
Protein markers
EV: HSP70/ CD63
non-EV: GM130
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary cancer-associated adipocytes
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
Protein Concentration Method
Not determined
Western Blot
Antibody details provided?
No
Detected EV-associated proteins
CD63/ HSP70
Not detected contaminants
GM130
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNA sequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Size range/distribution
Reported size (nm)
70-130
EV concentration
Yes
EM
EM-type
Transmission-EM
Image type
Close-up
EV210034 2/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
miR21 overexpression
Focus vesicles
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary cancer-associated adipocytes
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: Lipid analysis
No
Characterization: Particle analysis
None
EV210034 3/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
pre-miR21 transfected
Focus vesicles
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary cancer-associated adipocytes
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: Lipid analysis
No
Characterization: Particle analysis
None
EV210034 4/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary normal adipocytes
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNAsequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Not Reported
EV concentration
Yes
EV210034 5/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary cancer-associated fibroblasts
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNAsequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Not Reported
EV concentration
Yes
EV210034 6/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
miR21 overexpression
Focus vesicles
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary cancer-associated fibroblasts
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: Lipid analysis
No
Characterization: Particle analysis
None
EV210034 7/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
pre-miR21 transfected
Focus vesicles
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary cancer-associated fibroblasts
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: Lipid analysis
No
Characterization: Particle analysis
None
EV210034 8/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
Primary normal fibroblasts
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNAsequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Not Reported
EV concentration
Yes
EV210034 9/14 Mus musculus Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
miR21 -/-
Focus vesicles
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Mus musculus
Sample Type
Cell culture supernatant
EV-producing cells
Primary mouse embryonic fibroblasts
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Size range/distribution
Reported size (nm)
70-200
EV concentration
Yes
EV210034 10/14 Mus musculus Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
miR21 overexpression
Focus vesicles
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Mus musculus
Sample Type
Cell culture supernatant
EV-producing cells
Primary mouse embryonic fibroblasts
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Size range/distribution
Reported size (nm)
70-250
EV concentration
Yes
EV210034 11/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
A2780
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNA sequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Not Reported
EV concentration
Yes
EV210034 12/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
HeyA8
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNAsequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Not Reported
EV concentration
Yes
EV210034 13/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
OVCA433
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNAsequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Not Reported
EV concentration
Yes
EV210034 14/14 Homo sapiens Cell culture supernatant (d)(U)C
Filtration
Au Yeung, Chi Lam 2016 0%

Study summary

Full title
All authors
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Journal
Nat Commun
Abstract
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the (show more...)Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1. These data suggest that the malignant phenotype of metastatic ovarian cancer cells can be altered by miR21 delivered by exosomes derived from neighbouring stromal cells in the omental tumour microenvironment, and that inhibiting the transfer of stromal-derived miR21 is an alternative modality in the treatment of metastatic and recurrent ovarian cancer. (hide)
EV-METRIC
0% (median: 22% 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
exosome
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
Filtration
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Function/Identification of content (omics approaches)
Sample
Species
Homo sapiens
Sample Type
Cell culture supernatant
EV-producing cells
SKOV3
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Not specified
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)
90
Pelleting: rotor type
Not specified
Pelleting: speed (g)
100000
Wash: volume per pellet (ml)
Not specified
Wash: time (min)
90
Wash: Rotor Type
Not specified
Wash: speed (g)
100000
Filtration steps
0.22µm or 0.2µm
Characterization: Protein analysis
None
Protein Concentration Method
Not determined
Characterization: RNA analysis
RNA analysis
Type
(RT)(q)PCR;RNAsequencing
Database
Yes
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
TRPS
Report type
Not Reported
EV concentration
Yes
1 - 14 of 14
  • CM = Commercial method
  • dUC = differential ultracentrifugation
  • DG = density gradient
  • UF = ultrafiltration
  • SEC = size-exclusion chromatography
EV-TRACK ID
EV210034
species
Homo
sapiens
Homo
sapiens
Homo
sapiens
Homo
sapiens
Homo
sapiens
Homo
sapiens
Homo
sapiens
Homo
sapiens
Mus
musculus
Mus
musculus
Homo
sapiens
Homo
sapiens
Homo
sapiens
Homo
sapiens
sample type
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
cell type
Primary
cancer-associated
adipocytes
Primary
cancer-associated
adipocytes
Primary
cancer-associated
adipocytes
Primary
normal
adipocytes
Primary
cancer-associated
fibroblasts
Primary
cancer-associated
fibroblasts
Primary
cancer-associated
fibroblasts
Primary
normal
fibroblasts
Primary
mouse
embryonic
fibroblasts
Primary
mouse
embryonic
fibroblasts
A2780
HeyA8
OVCA433
SKOV3
condition
Control
condition
miR21
overexpression
pre-miR21
transfected
Control
condition
Control
condition
miR21
overexpression
pre-miR21
transfected
Control
condition
miR21
-/-
miR21
overexpression
Control
condition
Control
condition
Control
condition
Control
condition
separation protocol
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
dUC
Filtration
Exp. nr.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EV-METRIC %
45
0
0
0
0
0
0
0
0
0
0
0
0
0