Search > Results

You searched for: EV220120 (EV-TRACK ID)

Showing 1 - 2 of 2

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
EV220120 1/2 Homo sapiens primary macrophages UF
qEV
Pantazi P 2022 75%

Study summary

Full title
All authors
Pantazi P, Clements T, Venø M, Abrahams VM, Holder B
Journal
J Extracell Vesicles
Abstract
Macrophages are important antigen presenting cells which can release extracellular vesicles (EVs) ca (show more...)Macrophages are important antigen presenting cells which can release extracellular vesicles (EVs) carrying functional cargo including non-coding RNAs. Macrophages can be broadly classified into M1 'classical' and M2 'alternatively-activated' macrophages. M1 macrophages have been linked with inflammation-associated pathologies, whereas a switch towards an M2 phenotype indicates resolution of inflammation and tissue regeneration. Here, we provide the first comprehensive analysis of the small RNA cargo of EVs from human M1 and M2 primary macrophages. Using small RNA sequencing, we identified several types of small non-coding RNAs in M1 and M2 macrophage EVs including miRNAs, isomiRs, tRNA fragments, piRNA, snRNA, snoRNA and Y-RNA fragments. Distinct differences were observed between M1 and M2 EVs, with higher relative abundance of miRNAs, and lower abundance of tRNA fragments in M1 compared to M2 EVs. MicroRNA-target enrichment analysis identified several gene targets involved in gene expression and inflammatory signalling pathways. EVs were also enriched in tRNA fragments, primarily originating from the 5' end or the internal region of the full length tRNAs, many of which were differentially abundant in M1 and M2 EVs. Similarly, several other small non-coding RNAs, namely snRNAs, snoRNAs and Y-RNA fragments, were differentially enriched in M1 and M2 EVs/ we discuss their putative roles in macrophage EVs. In conclusion, we show that M1 and M2 macrophages release EVs with distinct RNA cargo, which has the potential to contribute to the unique effect of these cell subsets on their microenvironment. (hide)
EV-METRIC
75% (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
M1 pathway
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
Ultrafiltration
Commercial method
Protein markers
EV: Alix/ MHC1/ MHC2/ Fibronectin/ HSP70/ CD63/ CD81/ Syntenin-1
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
primary macrophages
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Commercial EDS
Separation Method
Ultra filtration
Cut-off size (kDa)
30
Commercial kit
qEV
Characterization: Protein analysis
Protein Concentration Method
microBCA
Protein Yield (µg)
per milliliter of starting sample
Western Blot
Detected EV-associated proteins
Alix/ MHC1/ MHC2/ Fibronectin
Not detected EV-associated proteins
HSP70
Not detected contaminants
Calnexin
ELISA
Detected EV-associated proteins
Alix/ CD63/ CD81/ MHC1/ Syntenin-1
Characterization: RNA analysis
RNA analysis
Type
(RT)­(q)PCR/ RNA­sequencing
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Median
Reported size (nm)
162.4
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 1.25E+10
EM
EM-type
Transmission-EM
Image type
Close-up, Wide-field
EV220120 2/2 Homo sapiens primary macrophages UF
qEV
Pantazi P 2022 75%

Study summary

Full title
All authors
Pantazi P, Clements T, Venø M, Abrahams VM, Holder B
Journal
J Extracell Vesicles
Abstract
Macrophages are important antigen presenting cells which can release extracellular vesicles (EVs) ca (show more...)Macrophages are important antigen presenting cells which can release extracellular vesicles (EVs) carrying functional cargo including non-coding RNAs. Macrophages can be broadly classified into M1 'classical' and M2 'alternatively-activated' macrophages. M1 macrophages have been linked with inflammation-associated pathologies, whereas a switch towards an M2 phenotype indicates resolution of inflammation and tissue regeneration. Here, we provide the first comprehensive analysis of the small RNA cargo of EVs from human M1 and M2 primary macrophages. Using small RNA sequencing, we identified several types of small non-coding RNAs in M1 and M2 macrophage EVs including miRNAs, isomiRs, tRNA fragments, piRNA, snRNA, snoRNA and Y-RNA fragments. Distinct differences were observed between M1 and M2 EVs, with higher relative abundance of miRNAs, and lower abundance of tRNA fragments in M1 compared to M2 EVs. MicroRNA-target enrichment analysis identified several gene targets involved in gene expression and inflammatory signalling pathways. EVs were also enriched in tRNA fragments, primarily originating from the 5' end or the internal region of the full length tRNAs, many of which were differentially abundant in M1 and M2 EVs. Similarly, several other small non-coding RNAs, namely snRNAs, snoRNAs and Y-RNA fragments, were differentially enriched in M1 and M2 EVs/ we discuss their putative roles in macrophage EVs. In conclusion, we show that M1 and M2 macrophages release EVs with distinct RNA cargo, which has the potential to contribute to the unique effect of these cell subsets on their microenvironment. (hide)
EV-METRIC
75% (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
M2 pathway
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
Ultrafiltration
Commercial method
Protein markers
EV: Alix/ MHC1/ MHC2/ Fibronectin/ HSP70/ CD63/ CD81/ Syntenin-1
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
primary macrophages
EV-harvesting Medium
EV-depleted medium
Preparation of EDS
Commercial EDS
Separation Method
Ultra filtration
Cut-off size (kDa)
30
Commercial kit
qEV
Characterization: Protein analysis
Protein Concentration Method
microBCA
Protein Yield (µg)
per milliliter of starting sample
Western Blot
Detected EV-associated proteins
Alix/ MHC1/ MHC2/ Fibronectin
Not detected EV-associated proteins
HSP70
Not detected contaminants
Calnexin
ELISA
Detected EV-associated proteins
Alix/ CD63/ CD81/ MHC1/ Syntenin-1
Characterization: RNA analysis
RNA analysis
Type
(RT)­(q)PCR/ RNA­sequencing
Proteinase treatment
No
RNAse treatment
No
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Median
Reported size (nm)
155.4
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 6.57E+09
EM
EM-type
Transmission-EM
Image type
Close-up, Wide-field
1 - 2 of 2
  • CM = Commercial method
  • dUC = differential ultracentrifugation
  • DG = density gradient
  • UF = ultrafiltration
  • SEC = size-exclusion chromatography
EV-TRACK ID
EV220120
species
Homo sapiens
sample type
Cell culture
cell type
primary macrophages
condition
M1 pathway
M2 pathway
separation protocol
Ultrafiltration/ qEV
Ultrafiltration/ qEV
Exp. nr.
1
2
EV-METRIC %
75
75