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Details	EV-TRACK ID	Experiment nr.	Species	Sample type	Separation protocol	First author	Year	EV-METRIC
	EV200143	1/2	Homo sapiens	Blood plasma	(d)(U)C Filtration	Ramkumar, Menon	2019	45%
Study summary Full title Circulating Exosomal miRNA Profile During Term and Preterm Birth Pregnancies: A Longitudinal Study All authors Ramkumar Menon, Chirantan Debnath, Andrew Lai, Dominic Guanzon, Shinjini Bhatnagar, Pallavi K Kshetrapal, Samantha Sheller-Miller, Carlos Salomon, Garbhini Study Team Journal Endocrinology Abstract Despite decades of research in the field of human reproduction, the mechanisms responsible for human (show more...)Despite decades of research in the field of human reproduction, the mechanisms responsible for human parturition still remain elusive. The objective of this study was to describe the changes in the exosomal miRNA concentrations circulating in the maternal plasma between mothers delivering term and preterm neonates, across gestation using a longitudinal study design. This descriptive study identifies the miRNA content in exosomes present in maternal plasma of term and preterm birth (PTB) (n = 20 and n = 10 per each gestational period, respectively) across gestation (i.e., first, second, and third trimesters and at the time of delivery). Changes in exosomal miRNA signature in maternal plasma during term and preterm gestation were determined using the NextSeq 500 high-output 75 cycles sequencing platform. A total of 167 and 153 miRNAs were found to significantly change (P < 0.05) as a function of the gestational age across term and PTB pregnancies, respectively. Interestingly, a comparison analysis between the exosomal miRNA profile between term and PTB reveals a total of 173 miRNAs that significantly change (P < 0.05) across gestation. Specific trends of changes (i.e., increase, decrease, and both) as a function of the gestational age were also identified. The bioinformatics analyses establish that the differences in the miRNA profile are targeting signaling pathways associated with TGF-β signaling, p53, and glucocorticoid receptor signaling, respectively. These data suggest that the miRNA content of circulating exosomes in maternal blood might represent a biomolecular fingerprint of the progression of pregnancy. (hide) EV-METRIC 45% (78th 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 Blood plasma Sample origin Normal pregnancy 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: TSG101/ CD63/ CD9 non-EV: Grp94 Proteomics no Show all info Study aim Identification of content (omics approaches) Sample Species Homo sapiens Sample Type Blood plasma Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Between 10,000 g and 50,000 g Between 100,000 g and 150,000 g Pelleting performed Yes Pelleting: time(min) 120 Pelleting: rotor type T-8100 Pelleting: speed (g) 100000 Wash: volume per pellet (ml) 10 Wash: time (min) 120 Wash: Rotor Type T-8100 Wash: speed (g) 100000 Filtration steps 0.22µm or 0.2µm Characterization: Protein analysis Protein Concentration Method Not determined Western Blot Antibody details provided? Yes Antibody dilution provided? Yes Detected EV-associated proteins CD9/ CD63/ TSG101 Not detected contaminants Grp94 Characterization: RNA analysis RNA analysis Type RNA sequencing Database Yes Proteinase treatment No RNAse treatment No Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Size range/distribution Reported size (nm) 30-120nm EM EM-type Transmission-EM Image type Close-up

	EV200143	2/2	Homo sapiens	Blood plasma	(d)(U)C Filtration	Ramkumar, Menon	2019	34%
Study summary Full title Circulating Exosomal miRNA Profile During Term and Preterm Birth Pregnancies: A Longitudinal Study All authors Ramkumar Menon, Chirantan Debnath, Andrew Lai, Dominic Guanzon, Shinjini Bhatnagar, Pallavi K Kshetrapal, Samantha Sheller-Miller, Carlos Salomon, Garbhini Study Team Journal Endocrinology Abstract Despite decades of research in the field of human reproduction, the mechanisms responsible for human (show more...)Despite decades of research in the field of human reproduction, the mechanisms responsible for human parturition still remain elusive. The objective of this study was to describe the changes in the exosomal miRNA concentrations circulating in the maternal plasma between mothers delivering term and preterm neonates, across gestation using a longitudinal study design. This descriptive study identifies the miRNA content in exosomes present in maternal plasma of term and preterm birth (PTB) (n = 20 and n = 10 per each gestational period, respectively) across gestation (i.e., first, second, and third trimesters and at the time of delivery). Changes in exosomal miRNA signature in maternal plasma during term and preterm gestation were determined using the NextSeq 500 high-output 75 cycles sequencing platform. A total of 167 and 153 miRNAs were found to significantly change (P < 0.05) as a function of the gestational age across term and PTB pregnancies, respectively. Interestingly, a comparison analysis between the exosomal miRNA profile between term and PTB reveals a total of 173 miRNAs that significantly change (P < 0.05) across gestation. Specific trends of changes (i.e., increase, decrease, and both) as a function of the gestational age were also identified. The bioinformatics analyses establish that the differences in the miRNA profile are targeting signaling pathways associated with TGF-β signaling, p53, and glucocorticoid receptor signaling, respectively. These data suggest that the miRNA content of circulating exosomes in maternal blood might represent a biomolecular fingerprint of the progression of pregnancy. (hide) EV-METRIC 34% (69th 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 Blood plasma Sample origin Pre-term birth 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: TSG101/ CD63/ CD9 non-EV: Grp94 Proteomics no Show all info Study aim Identification of content (omics approaches) Sample Species Homo sapiens Sample Type Blood plasma Separation Method (Differential) (ultra)centrifugation dUC: centrifugation steps Between 800 g and 10,000 g Between 10,000 g and 50,000 g Between 100,000 g and 150,000 g Pelleting performed Yes Pelleting: time(min) 120 Pelleting: rotor type T-8100 Pelleting: speed (g) 100000 Wash: volume per pellet (ml) 10 Wash: time (min) 120 Wash: Rotor Type T-8100 Wash: speed (g) 100000 Filtration steps 0.22µm or 0.2µm Characterization: Protein analysis Protein Concentration Method Not determined Western Blot Antibody details provided? Yes Antibody dilution provided? Yes Detected EV-associated proteins CD9/ CD63/ TSG101 Not detected contaminants Grp94 Characterization: RNA analysis RNA analysis Type RNAsequencing Database Yes Proteinase treatment No RNAse treatment No Characterization: Lipid analysis No Characterization: Particle analysis NTA Report type Size range/distribution Reported size (nm) 30-120nm

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EV-TRACK ID	EV200143
species	Homo sapiens
sample type	Blood plasma
condition	Normal pregnancy	Pre-term birth
separation protocol	dUC Filtration	dUC Filtration
Exp. nr.	1	2
EV-METRIC %	45	34